CN107634974A - A kind of data transmission method and device - Google Patents
A kind of data transmission method and device Download PDFInfo
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- CN107634974A CN107634974A CN201610556382.5A CN201610556382A CN107634974A CN 107634974 A CN107634974 A CN 107634974A CN 201610556382 A CN201610556382 A CN 201610556382A CN 107634974 A CN107634974 A CN 107634974A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
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Abstract
The embodiment of the invention discloses a kind of data transmission method and device, wherein, data transmission method includes：First terminal sends previewing file request to second terminal, and previewing file asks at least one file data for asking preview second terminal to store；First terminal receives at least one previewing file data that second terminal is sent, and each previewing file data include at least a portion data of a file data of second terminal storage, and the size of each previewing file data is less than the size of corresponding file data；First terminal obtains the file transmission instruction of user's input, and file transmission instruction is used to indicate to transmit at least one file data, and at least one file data is that user selects at least one previewing file data；First terminal sends file transmission request to second terminal；First terminal receives at least one file data that second terminal is sent.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of data transmission method and device.
Background technology
At present, have in the application of some terminal devices and share file under LAN environment or pass through Wireless Fidelity
(Wireless-Fidelity, Wi-Fi) direct-connected function of sharing file, so that can easily divide between user
File is enjoyed, and data traffic need not be expended.
The basic procedure for sharing file in terminal device by LAN or Wi-Fi direct is：1) two peaces are made
Terminal device equipped with same application is in same LAN, or two terminals for being provided with same application are set
It is direct-connected for being carried out by Wi-Fi；2) user selects in the file being locally stored as the terminal device of sender
One or more files for needing to send are selected, and click on send button；3) the terminal device quilt as recipient
The dynamic file for receiving sender.
It can be seen that from above-mentioned processing procedure and be only capable of passively receiving file as the terminal device of recipient, use
Family experience is bad.
The content of the invention
In order to solve the above technical problems, the embodiment of the present invention it is expected to provide a kind of data transmission method and device,
Enable file reception side's active obtaining file, improve Consumer's Experience.
The technical proposal of the invention is realized in this way：
First aspect provides a kind of data transmission method, and methods described includes：
First terminal sends previewing file request to second terminal, and the previewing file asks to be used to ask preview
At least one file data of the second terminal storage；
The first terminal receives at least one previewing file data that the second terminal is sent, each file
The size of preview data is less than the size of corresponding file data；
The first terminal obtains file transmission instruction, and the file transmission instruction is used to indicate that transmission is selected from institute
State at least one file data at least one previewing file data；
The first terminal sends file transmission request to the second terminal；
The first terminal receives at least one file data that the second terminal is sent.
In a kind of possible implementation of first aspect, the first terminal is pre- to second terminal transmission file
Look at before request, methods described also includes：
The first terminal receives the udp broadcast message that the second terminal is sent；
The first terminal and the second terminal are established the first TCP and are connected and the 2nd TCP connections, described
The port numbers that first TCP connections connect with the 2nd TCP are different；
The first terminal sends previewing file request to second terminal, including：
The first terminal is connected by the first TCP please to the second terminal transmission previewing file
Ask；
The first terminal receives the previewing file data that the second terminal is sent, including：
The file that the first terminal receives the second terminal transmission by the first TCP connections is pre-
Look at data；
The first terminal sends file transmission request to the second terminal, including：
The first terminal is connected by the first TCP please to the second terminal transmission file transmission
Ask；
The first terminal receives at least one file data that the second terminal is sent, including：
The first terminal is received at least one described in the second terminal transmission by the 2nd TCP connections
Individual file data.
In a kind of possible implementation of first aspect, the previewing file data are the breviary of preview file
Figure；
The previewing file request includes asking the file type and preview file thumbnail dimensions of preview, described
File type includes at least one of picture, video, document；
The first terminal receives at least one previewing file data that the second terminal is sent, including：
The first terminal receives the file name at least one preview file that the second terminal is sent, text
Part type, file size and thumbnail code data.
In a kind of possible implementation of first aspect, the first terminal receives the second terminal and sent
At least one previewing file data after, methods described also includes：
The first terminal shows at least one previewing file data to the user；
The first terminal obtains file transmission instruction, including：
The first terminal obtains at least one previewing file data of user's selection, and the user is selected
At least one previewing file data are transmitted as the file and indicated, the file transmission instruction is used to indicate to pass
File data corresponding at least one previewing file data of defeated user's selection.
Second aspect provides a kind of data transmission method, and methods described includes：
Second terminal receives the previewing file request that first terminal is sent, and the previewing file asks to be used to ask
At least one file data that second terminal described in preview stores；
The second terminal sends at least one previewing file data, each previewing file to the first terminal
The size of data is less than the size of corresponding file data；
The second terminal receives the first terminal and sends file transmission request；
The second terminal sends at least one file data to the first terminal.
In a kind of possible implementation of second aspect, the second terminal receives the text that first terminal is sent
Before part preview request, methods described also includes：
The second terminal receives the udp broadcast message that the first terminal is sent；
The second terminal and the first terminal are established the first TCP and are connected and the 2nd TCP connections, described
The port numbers that first TCP connections connect with the 2nd TCP are different；
The second terminal receives the previewing file request that first terminal is sent, including：
The previewing file that the second terminal receives first terminal transmission by the first TCP connections is asked；
The second terminal sends at least one previewing file data to the first terminal, including：
The second terminal is connected pre- at least one file of first terminal transmission by the first TCP
Look at data；
The second terminal receives the first terminal and sends file transmission request, including：
The second terminal receives the first terminal by the first TCP connections and sends file transmission request；
The second terminal sends at least one file data to the first terminal, including：
The second terminal is connected to the first terminal by the 2nd TCP and sends at least one text
Number of packages evidence.
In a kind of possible implementation of second aspect, the second terminal to the first terminal send to
Before few previewing file data, methods described also includes：
The second terminal generates at least one previewing file data according to previewing file request.
In a kind of possible implementation of second aspect, the previewing file data are the breviary of preview file
Figure；
The previewing file request includes asking the file type and preview file thumbnail dimensions of preview, described
File type includes at least one of picture, video, document；
The second terminal sends at least one previewing file data to the first terminal, including：
The second terminal sends the file name of at least one preview file, files classes to the first terminal
Type, file size and thumbnail code data.
The third aspect provides a kind of data transmission device, and described device includes：
First sending module, for sending previewing file request to second terminal, the previewing file request is used
In at least one file data of second terminal storage described in request preview；
First receiving module, at least one previewing file data sent for receiving the second terminal, often
The size of individual previewing file data is less than the size of corresponding file data；
Acquisition module, the file for obtaining user's input transmit instruction, and the file transmission instruction is used to refer to
Show at least one file data of the transmission at least one previewing file data；
First sending module, it is additionally operable to send file transmission request to the second terminal；
First receiving module, it is additionally operable to receive at least one number of files that the second terminal is sent
According to.
In a kind of possible implementation of the third aspect, first receiving module, it is additionally operable to described in reception
The udp broadcast message that second terminal is sent；
Described device also includes：First connection establishment module, for establishing the first TCP with the second terminal
Connection connects with the 2nd TCP, and the port numbers that the first TCP connections connect with the 2nd TCP are different；
First sending module, connected to the second terminal and sent out by the first TCP specifically for end
The previewing file is sent to ask；Connected by the first TCP to the second terminal and send the file biography
Defeated request；
First receiving module, sent out specifically for receiving the second terminal by the first TCP connections
The previewing file data sent；Received by the 2nd TCP connections described in the second terminal transmission
At least one file data.
In a kind of possible implementation of the third aspect, the previewing file data are the breviary of preview file
Figure；
The previewing file request includes asking the file type and preview file thumbnail dimensions of preview, described
File type includes at least one of picture, video, document；
First receiving module, at least one preview file sent specifically for receiving the second terminal
File name, file type, file size and thumbnail code data.
In a kind of possible implementation of the third aspect, described device also includes：Display module, for
The user shows at least one previewing file data；
The acquisition module, at least one previewing file data specifically for obtaining user's selection, by described in
At least one previewing file data of user's selection are transmitted as the file to be indicated, the file transmission instruction
For indicating to transmit the file data corresponding at least one previewing file data of user's selection.
Fourth aspect provides a kind of data transmission device, and described device includes：
Second receiving module, for receiving the previewing file request of first terminal transmission, the previewing file please
Seek at least one file data for asking data transmission device described in preview to store；
Second sending module, for sending at least one previewing file data, Mei Gewen to the first terminal
The size of part preview data is less than the size of corresponding file data；
Second receiving module, it is additionally operable to receive the first terminal transmission file transmission request；
Second sending module, it is additionally operable to send at least one file data to the first terminal.
In a kind of possible implementation of fourth aspect, second receiving module, it is additionally operable to described in reception
The udp broadcast message that first terminal is sent；
Described device also includes：Second connection establishment module, for establishing the first TCP with the first terminal
Connection connects with the 2nd TCP, and the port numbers that the first TCP connections connect with the 2nd TCP are different；
Second receiving module, specifically for receiving what first terminal was sent by the first TCP connections
Previewing file is asked；The first terminal is received by the first TCP connections and sends file transmission request；
Second sending module, sent specifically for being connected by the first TCP to the first terminal
At least one previewing file data；By the 2nd TCP connect to the first terminal send described at least
One file data.
In a kind of possible implementation of fourth aspect, described device also includes：Generation module, for root
At least one previewing file data are generated according to previewing file request.
In a kind of possible implementation of fourth aspect, the previewing file data are the breviary of preview file
Figure；
The previewing file request includes asking the file type and preview file thumbnail dimensions of preview, described
File type includes at least one of picture, video, document；
Second sending module, the text specifically for sending at least one preview file to the first terminal
Part title, file type, file size and thumbnail code data.
The embodiments of the invention provide a kind of data transmission method and device, first terminal is by second terminal
Send previewing file request, receive second terminal send previewing file data, enable first terminal according to
The file data obtained needed for the selection of previewing file data, and the text of user's selection is obtained from second terminal again
Number of packages evidence, enable file reception side's active obtaining file, improve Consumer's Experience.
Brief description of the drawings
Fig. 1 is the flow chart of data transmission method embodiment one provided in an embodiment of the present invention；
Fig. 2 is the flow chart of data transmission method embodiment two provided in an embodiment of the present invention；
Fig. 3 is the flow chart of data transmission method embodiment three provided in an embodiment of the present invention；
Fig. 4 is the structural representation of data transmission device embodiment one provided in an embodiment of the present invention；
Fig. 5 is the structural representation of data transmission device embodiment two provided in an embodiment of the present invention；
Fig. 6 is the structural representation of data transmission device embodiment three provided in an embodiment of the present invention；
Fig. 7 is the structural representation of data transmission device example IV provided in an embodiment of the present invention；
Fig. 8 is the structural representation of data transmission device embodiment five provided in an embodiment of the present invention；
Fig. 9 is the structural representation of data transmission device embodiment six provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear
Chu, it is fully described by.
With the popularization of radio communication, the various terminal devices with wireless communication ability are widely used,
Such as the terminal device such as smart mobile phone, tablet personal computer is increasingly becoming the indispensable life of people, Work tool.
In order to promote emotion, people are happy to share what is stored in the terminal devices such as picture, video each other in exchange very much
File, there may also be the files such as the document stored in AC terminal equipment at work.And the end of prior art
In end equipment, it is only capable of being that storage documentary terminal device actively initiates file and transmitted to ask, and file reception
Side is only capable of passively receiving.Such sharing files mode underaction, Consumer's Experience are bad.
Fig. 1 is the flow chart of data transmission method embodiment one provided in an embodiment of the present invention, as shown in figure 1,
The data transmission method that the present embodiment provides includes：
Step S101, first terminal send previewing file request to second terminal, and previewing file asks to be used to ask
At least one file data for asking preview second terminal to store.
First, if file data need to be transmitted between two terminal devices, it is necessary to be established between two terminal devices
There is data transfer connection.In the present embodiment, two terminal devices for carrying out file data transfer are referred to as the
One terminal and second terminal, wherein first terminal are the terminal device of acquisition request file data, and second is whole
End equipment is to be stored with the terminal device of file data.The connection established between first terminal and second terminal
Can be any connection that can carry out file data transfer, such as transmission control protocol (Transmission
Control Protocol, TCP) connection, either Wi-Fi direct or mobile data cube computation etc..
After data transfer connection is established between first terminal and second terminal, first terminal is first to second
Terminal sends previewing file request, and this document preview request is used for ask preview second terminal to store at least one
Individual file data.Because the file data stored in second terminal may be more, and such as picture, video
File is generally large, therefore first terminal needs selectively to ask second terminal to send the file needed for user
Data.And due to needing to trigger file by the receiving terminal of first terminal, that is, file in the present embodiment
Transmission, but first terminal and which is not known in the file stored in second terminal using the user of first terminal
It is oneself needs, therefore, first terminal sends previewing file request firstly the need of to second terminal.File
The purpose of preview request is to browse the file stored in second terminal in advance, to be stored in second terminal
File in select needed for transmission file.
Previewing file request can ask the All Files stored in preview second terminal, can also ask preview
The partial document stored in second terminal.The attribute of the file of request preview can be included in previewing file request
Information, such as file type, filemodetime etc..Wherein file type can be picture, video, text
The types such as shelves.Namely can be asked using the user of first terminal by configuring different previewing file, make the
Two terminals feed back different previewing file data.
Step S102, first terminal receive at least one previewing file data that second terminal is sent, Mei Gewen
The size of part preview data is less than the size of corresponding file data.
After second terminal receives the previewing file request of first terminal transmission, it will be parsed, obtained
Which the file data for knowing preview needed for first terminal is, and the file for generating each required preview file data is pre-
Look at data.It is to browse the number of files stored in second terminal because first terminal sends previewing file request
According to being not intended to directly obtain the data that are stored of second terminal, therefore second terminal is sent out to first terminal
The previewing file data sent will can characterize the data that second terminal is stored, and size is also less than second
The data stored in terminal.
Preview file data needed for so each first terminal correspond to a previewing file data, each file
Preview data includes the partial data of the file data stored in its corresponding second terminal, and each file
The size of preview data is less than the size of corresponding file data.It is understood that in previewing file data
Included data are more, can more embody its corresponding file data, but the size of previewing file data
To accordingly it increase.The size of previewing file data is bigger, then second terminal is pre- to first terminal transmission file
Data required time of looking at is longer, and it is more to take network traffic data.Therefore, it is necessary to find previewing file data
The rational proportion of corresponding file data, to ensure first terminal after previewing file data are received,
User can tell the file data of required acquisition, and the size of previewing file data is as small as possible.Or
First terminal can also specify the size of required previewing file data in previewing file request.Certainly, it is right
In different types of file data, the size of its previewing file data should be different, in the following embodiments
It will be described in more detail.
Step S103, first terminal obtain file transmission instruction, and file transmission instruction is used to indicate that transmission is selected from
At least one file data at least one previewing file data.
After first terminal receives at least one previewing file data of second terminal transmission, you can know the
File data corresponding with these previewing file data is stored with two terminals.So first terminal can obtain
Instruction is transmitted to according to default rule or the file generated according to the instruction of user, this document transmission instruction is used
In instruction transmission according to the file data selected at least one previewing file data.Usually, file transmits
Instruction be user according to previewing file data input, know when using the user of first terminal in second terminal
When which the file data of storage is respectively, then can pass through previewing file number using the user of first terminal
The file data for needing to obtain according to selection, generation file transmission instruction, instruction first terminal obtain from second terminal
Take the file data of family selection.
Step S104, first terminal send file transmission request to second terminal.
First terminal transmits instruction after the file transmission instruction of user's input is got, by this document and sent extremely
Second terminal, file transmission instruction are used to indicate that second terminal sends at least one file data.
Step S105, first terminal receive at least one file data that second terminal is sent.
After second terminal receives file transmission instruction, you can by indicated transmission in file transmission instruction
File data is sent to first terminal.Here file data is complete file data.
In the data transmission method that the present embodiment provides, first terminal to second terminal by sending previewing file
Request, the previewing file data that second terminal is sent are received, enable first terminal according to previewing file data
The file data obtained needed for selection, and the file data of user's selection is obtained from second terminal again, make text
Part recipient can active obtaining file, improve Consumer's Experience.
In the embodiment shown in fig. 1, any data transfer can be established between first terminal and second terminal
Connection, realizes data transfer.But when carrying out data transmission in view of user between two terminal devices, one
As all carried out when two terminal devices are closer to the distance, then in order to improve data transmission bauds, save
Internet resources and expense, it can be carried out data transmission between two terminal devices by TCP connections.TCP
Connection is a kind of connection applied to LAN, is carried out data transmission more reliably by TCP connections, and is passed
Defeated speed is higher.In addition, if two terminal devices all have Wi-Fi connection ability, then can also pass through
Wi-Fi direct establishes TCP connections, and this is similar with the method that TCP connections are established by LAN.
Establish between terminal devices before TCP connections, it is also necessary to have the process mutually found.First terminal
User datagram protocol (User Datagram Protocol, UDP) broadcast can be carried out with second terminal,
First terminal and second terminal can know the presence of other side by the UDP messages mutually broadcasted, so as to establish
TCP connections.Here TCP connections can be TCP socket connection, wherein TCP socket connection bag
Include source network agreement (Internet Protocol, IP) address, target ip address, source port number and destination end
Slogan, TCP socket connection are the standard connections based on TCP.Due between first terminal and second terminal
The transmission twice of progress previewing file data and file data is needed, therefore can be in first terminal and second eventually
Two TCP connections are established between end, the first TCP connections is referred to as and is connected with the 2nd TCP.First TCP
Port numbers difference used in being connected with the 2nd TCP is connected, has been made a distinction.First terminal passes through first
TCP is connected to second terminal and is sent previewing file request；And second terminal is received by the first TCP connections
The previewing file data of transmission；Connected by the first TCP to second terminal and send file transmission request.Pass through
2nd TCP connections receive at least one file data that second terminal is sent.That is, the first TCP
It is connected to transmit message, and the 2nd TCP is connected to transmit data.
Certainly, the connection established between first terminal and second terminal is not limited to TCP connections, such as
Client-server connection is established between one terminal and second terminal, can equally complete the data shown in Fig. 1
Transmission method.Wherein, the second terminal as data sending terminal is as server, as data receiver
First terminal is as client.
First terminal, which sends previewing file request and receives previewing file data, can use JavaScript object
Representation (JavaScript Object Notation, JSON) agreement, first terminal send file transmission request and
Any agreement for being adapted for file transmission can be used by receiving file data.But the embodiment of the present invention is carried
The data transmission method of confession is not limited above-mentioned agreement, can also be adopted between first terminal and second terminal
Carried out data transmission with other any host-host protocols.
By the file stored in terminal device is numerous, first terminal will not typically ask second terminal to send
The previewing file data for the All Files that second terminal is stored.Therefore, the previewing file that first terminal is sent
Request can be defined to the attribute of the previewing file data of required acquisition.Such as the text that first terminal is sent
Part preview request includes the file type for asking preview, file type here can be picture, video,
Any of document is a variety of., will be to being deposited so after second terminal receives previewing file request
The file of storage is screened, and the previewing file data of respective type are only sent to first terminal.Or first eventually
The previewing file request that end is sent includes asking other attributes such as modification time, the size of the file of preview,
Second terminal will filter out suitable file after previewing file request is received, and be sent to first terminal
Corresponding previewing file data.
Second terminal to the previewing file data that first terminal is sent can also be diversified forms, for example, preview
The file name of file, thumbnail etc..So that previewing file data is the thumbnails of preview file as an example, first
The type and preview text of request preview file can be included in the previewing file request that terminal is sent to second terminal
The size of part thumbnail, such as the type of request preview file is picture, thumbnail dimensions are 80 × 80 pixels,
Or the type of request preview file is video, thumbnail dimensions are 100 × 100 pixels etc..So when second
After terminal receives previewing file request, the file data of respective type will be filtered out, and file data is compiled
Code is the thumbnail of corresponding size.If the type of request preview file is picture, the thumbnail of preview file
It is exactly by size as defined in corresponding picture file boil down to thumbnail dimensions, but the image in thumbnail and original
Beginning picture file is identical.If the type for asking preview file is video, the thumbnail of preview file can be
It is thumbnail of the size as defined in thumbnail dimensions as preview file using any frame compression of images of video file,
Usually, can be using size as defined in the first two field picture boil down to thumbnail dimensions of video file as preview
The thumbnail of file.If the type of request preview file is document, the thumbnail of preview file can be by
Any page compression of images of document is thumbnail of the size as preview file as defined in thumbnail dimensions, typically
Ground, can be contracting of the size as preview file as defined in thumbnail dimensions using the first page compression of images of document
Sketch map.First terminal can receive multiple previewing file data, wherein each previewing file data are included in advance
Look at title, file type, file size and the thumbnail code data of file.First terminal is to receiving
Thumbnail code data can obtain corresponding thumbnail after being decoded.
It should be noted that first terminal is receiving at least one previewing file data of second terminal transmission
Afterwards, in order that user intuitively knows the file stored in second terminal, and it is easy to select file,
First terminal can also show at least one previewing file data got on a display screen.User can be
Multiple previewing file data are browsed on the display screen of first terminal, select the required previewing file obtained
Data, so as to generate file transmission instruction.So that previewing file data is the thumbnails of preview file as an example, when
After first terminal receives the thumbnail of multiple preview files, multiple breviaries can be sequentially arranged on a display screen
Figure, user can be intuitive to see multiple files of second terminal storage.If the display screen of first terminal is tactile
Control screen, then user can be selected by Touch Screen needed for thumbnail corresponding to the file that obtains.Certainly, if
The display screen of first terminal is not Touch Screen, and user can also select rope by the control button of first terminal
Take thumbnail corresponding to the file of acquisition.Or user can also pass through the modes such as phonetic entry, gesture input
Select corresponding thumbnail.
Fig. 2 is the flow chart of data transmission method embodiment two provided in an embodiment of the present invention, as shown in Fig. 2
The data transmission method that the present embodiment provides includes：
Step S201, second terminal receive the previewing file request that first terminal is sent, and previewing file request is used
In at least one file data of request preview second terminal storage.
Step S202, second terminal send at least one previewing file data to first terminal, and each file is pre-
The size of data of looking at is less than the size of corresponding file data.
Step S203, second terminal receive first terminal and send file transmission request, and file transmission request is used for
Second terminal is asked to transmit at least one file data.
Step S204, second terminal send at least one file data to first terminal.
The data transmission method that the present embodiment provides is using the second terminal as file data sender to perform master
Body, but the processing performed by second terminal is described in detail in the embodiment shown in fig. 1, herein not
Repeating.
Similarly, if carried out data transmission by TCP connections between second terminal and first terminal, then
Second terminal is before the previewing file request that first terminal is sent is received, it is also necessary to receives first terminal transmission
Udp broadcast message, so as to establishing TCP connections between second terminal and first terminal.Second terminal
The process and method that TCP connections are established between first terminal are described in detail in the aforementioned embodiment,
Here is omitted.
It should be noted that after second terminal receives the previewing file request of first terminal transmission, also need
Indicated information, generates at least one previewing file data in being asked according to previewing file.Second terminal
The previewing file request received can be defined to the attribute of the previewing file data of required acquisition.Such as
Previewing file request includes the file type of request preview, file type here can be picture, video,
Any of document is a variety of., will be to being deposited so after second terminal receives previewing file request
The file of storage is screened, and only generates the previewing file data of respective type.Or wrapped in previewing file request
Include other attributes, the second terminals such as modification time, the size of the file of request preview and receive previewing file
Suitable file will be filtered out after request, only generate corresponding previewing file data.Second terminal generation
Previewing file data can be diversified forms, for example, file name of preview file, thumbnail etc..With text
Exemplified by part preview data is the thumbnail of preview file, the previewing file that first terminal is sent to second terminal please
The type of request preview file and the size of preview file thumbnail, such as request preview text can be included in asking
The type of part is picture, and thumbnail dimensions are 80 × 80 pixels, or the type of request preview file is video,
Thumbnail dimensions are 100 × 100 pixels etc..So after second terminal receives previewing file request, it will sieve
The file data of respective type is selected, and file data is encoded to the thumbnail of corresponding size.If request is pre-
The type of file of looking at is picture, then the thumbnail of preview file is exactly by corresponding picture file boil down to breviary
Size as defined in figure size, but the image in thumbnail is identical with original image file.If ask preview file
Type be video, then the thumbnail of preview file can be by any frame compression of images of video file for contracting
Thumbnail of the size as preview file as defined in sketch map size, usually, can be by the first of video file
Thumbnail of the size as preview file as defined in two field picture boil down to thumbnail dimensions.If ask preview file
Type be document, then it by any page compression of images of document is thumbnail that the thumbnail of preview file, which can be,
Thumbnail of the size as defined in size as preview file, usually, can be by the first page image pressure of document
It is condensed to thumbnail of the size as defined in thumbnail dimensions as preview file.First terminal can receive multiple
Previewing file data, wherein each previewing file data include the title, file type, file of preview file
Size and thumbnail code data.After first terminal decodes to the thumbnail code data received
Obtain corresponding thumbnail.
The method flow of data transmission method provided in an embodiment of the present invention is illustrated various embodiments above,
Data transmission method provided in an embodiment of the present invention is further described with a specific embodiment below.
Fig. 3 is the flow chart of data transmission method embodiment three provided in an embodiment of the present invention, as shown in figure 3,
The data transmission method that the present embodiment provides includes：
Step S301, TCP connections are established between first terminal and second terminal.
Specifically, the present embodiment is established TCP in same LAN with first terminal and second terminal and is connected as
Example.Need to carry out udp broadcast between first terminal and second terminal first, pass through the UDP mutually broadcasted
Message finds other side.Then TCP establishment of connections are carried out, TCP connections here can be that TCP is socketed
Word connects.And for the ease of the transmission of previewing file data and file data, two TCP can be established simultaneously
Connection, asked wherein the first TCP is connected to the request of transmission previewing file, previewing file data and file transmission
Ask, the first TCP connections can use JSON protocol formats.2nd TCP is connected to transmit file data.
First TCP connections connect with the 2nd TCP uses different port numbers.
Step S302, first terminal are connected to second terminal using the first TCP and send thumbnail transmission request.
Specifically, in the present embodiment, so that previewing file data is the thumbnails of preview file as an example, then
First terminal is asked to actual sent for thumbnail of previewing file request that second terminal is sent.Thumbnail is sent
Request can use JSON protocol formats, including the file type and thumbnail size of request preview.
Previewing file is asked：{“MSGType”：" 1 ", " FileType ":“Video”,“Size”:
“80x80”}.Wherein " MSGType " represents information type, and its value is that " 1 " represents that this information is file
Preview request." FileType " represents file type, and its value " Video " represents that file type is video.“Size”
File size is represented, its value " 80x80 " represents that thumbnail size is 80x80 pixels.
Step S303, second terminal generation thumbnail preview data.
Specifically, after second terminal receives the thumbnail transmission request of first terminal transmission, it is solved
Analysis, know the information such as thumbnail file type needed for first terminal, size.Then system application journey is passed through
Sequence addressable port (Application Programming Interface, API) obtains the contracting of corresponding document data
Sketch map.Coding is carried out to the thumbnail got and obtains thumbnail code data, coding here can use
Any coded system, such as Bsse64 coded systems.Finally by thumbnail file coded data, filename
The information such as title, file size are converted to JSON protocol formats, generate thumbnail preview data.
Second terminal generation previewing file data for example can be：{“MSGType”：" 2 ", " FileList ":
[{“FileName”:“video1.mp4”,“FileIndex”:“1”,“FileType”:“Video”,“FileSize”:
" 24258654 ", " ThumbnailData ":" thumbnail Base64 coded datas " }, { " FileName ":
“video2.mp4”,“FileIndex”:“2”,“FileType”:“Video”“FileSize”:" 247585684 ",
“ThumbnailData”:" thumbnail Base64 coded datas " } ...] }.Wherein " MSGType " represents letter
Type is ceased, its value is that " 2 " represent that this information is previewing file data." FileList " represents listed files,
What is asked in the previewing file request sent due to first terminal is the previewing file data of a type, and the
May have the file data of multiple corresponding types, therefore the previewing file of second terminal generation in two terminals
Previewing file data corresponding to multiple file datas will be included in data." FileName " represents file name,
Its value " video1.mp4 ", " video2.mp4 " represent the title of file data." FileIndex " represents file rope
Draw, its value " 1 ", " 2 " represent the sequence of previewing file data in lists." FileType " represents files classes
Type, its value " Video " represent that file type is video." FileSize " represents the size of file, its value
" 24258654 ", " 247585684 " represent the byte number shared by file data." ThumbnailData " table
Show thumbnail file data, in its value " thumbnail Base64 coded datas " after filling thumbnail file coding
Data.
Step S304, second terminal send thumbnail preview data to first terminal.
Specifically, second terminal is connected to first terminal by the first TCP and sends thumbnail preview data.
Step S305, first terminal decoding thumbnail preview data, and show thumbnail preview data to user.
Specifically, after first terminal is decoded thumbnail preview data, each file data pair is got
Thumbnail, and shown on a display screen to user.User can know that thumbnail comes from second terminal.
Step S306, first terminal obtain the file transmission instruction of user's input.
Specifically, user can be on the display screen of first terminal by pulling, clicking on etc. needed for mode selects
Thumbnail corresponding to the file data of acquisition.Certainly, user can also pass through phonetic entry, gesture input etc.
Mode selects corresponding thumbnail.The thumbnail of user's selection is the file transmission instruction of user's input, should
File transmission instruction user instruction first terminal obtains file data corresponding to the thumbnail of user's selection.
Step S307, first terminal send file transmission request to second terminal.
Specifically, first terminal is connected to second terminal by the first TCP and sends file transmission request, file
Transmission request can use JSON protocol formats.
File transmission is asked：{“MSGType”：" 3 ", " FileList ":[{“FileName”:
“video1.mp4”,“FileIndex”:“1”,“FileType”:“Video”“FileSize”:“24258654”}]}。
Wherein " MSGType " represents information type, and its value is that " 3 " represent that this information is file transmission request.
" FileList " represents listed files, and user may need to obtain the multiple file datas stored in second terminal,
Therefore the transmission that multiple file datas may be included in file transmission request is asked, and is represented in a manner of listed files.
" FileName " represents file name, and its value " video1.mp4 " represents the title of file data.“FileIndex”
File index is represented, its value " 1 " represents the sequence of previewing file data in lists." FileType " represents text
Part type, its value " Video " represent that file type is video." FileSize " represents the size of file, its value
" 24258654 " represent the byte number shared by file data.
Step S308, second terminal send file data to first terminal.
Specifically, second terminal determines that first terminal needs the text obtained after file transmission request is received
Number of packages evidence, and it is passed through into the 2nd TCP linkup transmits to first terminal.
Second terminal can send file data by following protocol format to first terminal：
<HeadFlag><NameLength><Name><Filesize><Stream>.Wherein<HeadFlag>For data
Packet header, takes 4 bytes, and its value is that 0xFFFFFFFF represents data packet head.<NameLength>For 1 word
Section, is file character name length.<Name>For N byte filename.<Filesize>For 8 bytes, represent
File data size.<Stream>For document data flow.
Fig. 4 be data transmission device embodiment one provided in an embodiment of the present invention structural representation, such as Fig. 4
Shown, the data transmission device that the present embodiment provides includes：
First sending module 41, for sending previewing file request, the previewing file request to second terminal
For at least one file data for asking second terminal described in preview to store.
First receiving module 42, at least one previewing file data sent for receiving the second terminal,
The size of each previewing file data is less than the size of corresponding file data.
Acquisition module 43, the file for obtaining user's input transmit instruction, and the file transmission instruction is used for
Indicate at least one file data of the transmission at least one previewing file data.
First sending module 41, it is additionally operable to send file transmission request to the second terminal.
First receiving module 42, it is additionally operable to receive at least one file data that the second terminal is sent.
The data transmission device user that the present embodiment provides realizes the processing of the data transmission method shown in Fig. 1,
Its implementing principle and technical effect is similar, and here is omitted.
Fig. 5 be data transmission device embodiment two provided in an embodiment of the present invention structural representation, such as Fig. 5
It is shown, the present embodiment provide data transmission device on the basis of Fig. 4, in addition to：First connection is established
Module 51.
First receiving module 42, it is additionally operable to receive user's view udp broadcast message that the second terminal is sent.
First connection establishment module 51, it is connected and the 2nd TCP for establishing the first TCP with the second terminal
Connection, the port numbers that the first TCP connections connect with the 2nd TCP are different.
First sending module 41, connected to the second terminal and sent by the first TCP specifically for end
The previewing file request；Connected by the first TCP to the second terminal and send the file transmission
Request.
First receiving module 42, sent specifically for receiving the second terminal by the first TCP connections
The previewing file data；Received by the 2nd TCP connections described in the second terminal transmission extremely
A few file data.
Further, in Fig. 4 or embodiment illustrated in fig. 5, the previewing file data are preview file
Thumbnail；The previewing file request includes asking the file type and preview file thumbnail dimensions of preview,
The file type includes at least one of picture, video, document；First receiving module 42, it is specific to use
It is big in the file name, file type, file for receiving at least one preview file that the second terminal is sent
Small and thumbnail code data.
Fig. 6 be data transmission device embodiment three provided in an embodiment of the present invention structural representation, such as Fig. 6
It is shown, the present embodiment provide data transmission device on the basis of Fig. 5, in addition to：Display module 61,
For showing at least one previewing file data to the user.
Acquisition module 43, at least one previewing file data specifically for obtaining user's selection, by the use
At least one previewing file data of family selection are transmitted as the file to be indicated, the file transmission instruction is used
The file data corresponding at least one previewing file data of user's selection is transmitted in instruction.
Fig. 7 be data transmission device example IV provided in an embodiment of the present invention structural representation, such as Fig. 7
Data transmission device shown, that the present embodiment provides, including：
Second receiving module 71, for receiving the previewing file request of first terminal transmission, the previewing file
Ask at least one file data for asking data transmission device described in preview to store.
Second sending module 72, for sending at least one previewing file data to the first terminal, each
The size of previewing file data is less than the size of corresponding file data.
Second receiving module 71, it is additionally operable to receive the first terminal transmission file transmission request.
Second sending module 72, it is additionally operable to send at least one file data to the first terminal.
The data transmission device user that the present embodiment provides realizes the processing of the data transmission method shown in Fig. 2,
Its implementing principle and technical effect is similar, and here is omitted.
Fig. 8 be data transmission device embodiment five provided in an embodiment of the present invention structural representation, such as Fig. 8
It is shown, the present embodiment provide data transmission device on the basis of Fig. 7, in addition to：Second connection is established
Module 81.
Second receiving module 71, it is additionally operable to receive user's udp broadcast message that the first terminal is sent.
Second connection establishment module 81, it is connected and the 2nd TCP for establishing the first TCP with the first terminal
Connection, the port numbers that the first TCP connections connect with the 2nd TCP are different.
Second receiving module 71, the text specifically for receiving first terminal transmission by the first TCP connections
Part preview request；The first terminal is received by the first TCP connections and sends file transmission request.
Second sending module 72, specifically for by the first TCP connect to the first terminal send to
Few previewing file data；Connected by the 2nd TCP at least one described in first terminal transmission
Individual file data.
Fig. 9 be data transmission device embodiment six provided in an embodiment of the present invention structural representation, such as Fig. 9
It is shown, the present embodiment provide data transmission device on the basis of Fig. 8, in addition to：Generation module 91,
For generating at least one previewing file data according to previewing file request.
Further, in Fig. 7 into embodiment illustrated in fig. 9, the previewing file data are preview file
Thumbnail.The previewing file request includes asking the file type and preview file thumbnail dimensions of preview,
The file type includes at least one of picture, video, document.Second sending module 72, it is specific to use
In sent to the first terminal file name of at least one preview file, file type, file size and
Thumbnail code data.
The embodiment of the present invention also provides a kind of terminal device, it is necessary to explanation, the various embodiments described above of the present invention
In, the first sending module 41 and the second sending module 72 can be the transmitter or transceiver in terminal device；
First receiving module 42 and the second receiving module 71 can be transmitter or transceiver in terminal device.Obtain
Modulus block 43, the first connection establishment module 51, the second connection establishment module 81, generation module 91 can be by
Central processing unit (Central Processing Unit, CPU), the microprocessor (Micro of terminal device
Processor Unit, MPU), digital signal processor (Digital Signal Processor, DSP) or existing
Field programmable gate array (Field Programmable Gate Array, FPGA) etc. is realized.Display module
61 can be realized by the display of terminal device.Terminal device also includes memory, for store program codes,
Processor calls the program code stored in memory, to realize transmission side data provided in an embodiment of the present invention
Method.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can use hardware embodiment, software implementation or combine software and
The form of the embodiment of hardware aspect.Moreover, the present invention can use wherein includes calculating in one or more
The computer-usable storage medium of machine usable program code (includes but is not limited to magnetic disk storage and optical storage
Device etc.) on the form of computer program product implemented.
The present invention is with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Flow chart and/or block diagram describe.It should be understood that can be by computer program instructions implementation process figure and/or side
Each flow and/or square frame in block diagram and flow and/or the knot of square frame in flow chart and/or block diagram
Close.Can provide these computer program instructions to all-purpose computer, special-purpose computer, Embedded Processor or
The processor of other programmable data processing devices is to produce a machine so that by computer or other can
The instruction of the computing device of programming data processing equipment is produced for realizing in one flow or multiple of flow chart
The device for the function of being specified in one square frame of flow and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices
In the computer-readable memory to work in a specific way so that be stored in the computer-readable memory
Instruction produces the manufacture for including command device, and the command device is realized in one flow of flow chart or multiple streams
The function of being specified in one square frame of journey and/or block diagram or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices, made
Obtain and series of operation steps performed on computer or other programmable devices to produce computer implemented processing,
So as to which the instruction performed on computer or other programmable devices is provided for realizing in one flow of flow chart
Or specified in one square frame of multiple flows and/or block diagram or multiple square frames function the step of.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the protection model of the present invention
Enclose.
Claims (16)
1. a kind of data transmission method, it is characterised in that methods described includes：
First terminal sends previewing file request to second terminal, and the previewing file asks to be used to ask preview
At least one file data of the second terminal storage；
The first terminal receives at least one previewing file data that the second terminal is sent, each file
The size of preview data is less than the size of corresponding file data；
The first terminal obtains file transmission instruction, and the file transmission instruction is used to indicate that transmission is selected from institute
State at least one file data at least one previewing file data；
The first terminal sends file transmission request to the second terminal；
The first terminal receives at least one file data that the second terminal is sent.
2. according to the method for claim 1, it is characterised in that the first terminal is sent out to second terminal
Before sending previewing file request, methods described also includes：
The first terminal receives the user datagram protocol udp broadcast message that the second terminal is sent；
The first terminal and the second terminal are established the first transmission control protocol TCP and are connected and the 2nd TCP
Connection, the port numbers that the first TCP connections connect with the 2nd TCP are different；
The first terminal sends previewing file request to second terminal, including：
The first terminal is connected by the first TCP please to the second terminal transmission previewing file
Ask；
The first terminal receives the previewing file data that the second terminal is sent, including：
The file that the first terminal receives the second terminal transmission by the first TCP connections is pre-
Look at data；
The first terminal sends file transmission request to the second terminal, including：
The first terminal is connected by the first TCP please to the second terminal transmission file transmission
Ask；
The first terminal receives at least one file data that the second terminal is sent, including：
The first terminal is received at least one described in the second terminal transmission by the 2nd TCP connections
Individual file data.
3. method according to claim 1 or 2, it is characterised in that the previewing file data are pre-
Look at the thumbnail of file；
The previewing file request includes asking the file type and preview file thumbnail dimensions of preview, described
File type includes at least one of picture, video, document；
The first terminal receives at least one previewing file data that the second terminal is sent, including：
The first terminal receives the file name at least one preview file that the second terminal is sent, text
Part type, file size and thumbnail code data.
4. method according to claim 1 or 2, it is characterised in that described in the first terminal receives
After at least one previewing file data that second terminal is sent, methods described also includes：
The first terminal shows at least one previewing file data to the user；
The first terminal obtains file transmission instruction, including：
The first terminal obtains at least one previewing file data of user's selection, and the user is selected
At least one previewing file data are transmitted as the file and indicated, the file transmission instruction is used to indicate to pass
File data corresponding at least one previewing file data of defeated user's selection.
5. a kind of data transmission method, it is characterised in that methods described includes：
Second terminal receives the previewing file request that first terminal is sent, and the previewing file asks to be used to ask
At least one file data that second terminal described in preview stores；
The second terminal sends at least one previewing file data, each previewing file to the first terminal
The size of data is less than the size of corresponding file data；
The second terminal receives the first terminal and sends file transmission request；
The second terminal sends at least one file data to the first terminal.
6. the method according to claim 5, it is characterised in that the second terminal receives first terminal
Before the previewing file request of transmission, methods described also includes：
The second terminal receives the user datagram protocol udp broadcast message that the first terminal is sent；
The second terminal and the first terminal are established the first transmission control protocol TCP and are connected and the 2nd TCP
Connection, the port numbers that the first TCP connections connect with the 2nd TCP are different；
The second terminal receives the previewing file request that first terminal is sent, including：
The previewing file that the second terminal receives first terminal transmission by the first TCP connections is asked；
The second terminal sends at least one previewing file data to the first terminal, including：
The second terminal is connected pre- at least one file of first terminal transmission by the first TCP
Look at data；
The second terminal receives the first terminal and sends file transmission request, including：
The second terminal receives the first terminal by the first TCP connections and sends file transmission request；
The second terminal sends at least one file data to the first terminal, including：
The second terminal is connected to the first terminal by the 2nd TCP and sends at least one text
Number of packages evidence.
7. the method according to claim 6 or 7, it is characterised in that the second terminal is to described
Before one terminal sends at least one previewing file data, methods described also includes：
The second terminal generates at least one previewing file data according to previewing file request.
8. the method according to claim 6 or 7, it is characterised in that the previewing file data are pre-
Look at the thumbnail of file；
The previewing file request includes asking the file type and preview file thumbnail dimensions of preview, described
File type includes at least one of picture, video, document；
The second terminal sends at least one previewing file data to the first terminal, including：
The second terminal sends the file name of at least one preview file, files classes to the first terminal
Type, file size and thumbnail code data.
9. a kind of data transmission device, it is characterised in that described device includes：
First sending module, for sending previewing file request to second terminal, the previewing file request is used
In at least one file data of second terminal storage described in request preview；
First receiving module, at least one previewing file data sent for receiving the second terminal, often
The size of individual previewing file data is less than the size of corresponding file data；
Acquisition module, the file for obtaining user's input transmit instruction, and the file transmission instruction is used to refer to
Show at least one file data of the transmission at least one previewing file data；
First sending module, it is additionally operable to send file transmission request to the second terminal；
First receiving module, it is additionally operable to receive at least one number of files that the second terminal is sent
According to.
10. device according to claim 9, it is characterised in that first receiving module, also use
In the user datagram protocol udp broadcast message for receiving the second terminal transmission；
Described device also includes：First connection establishment module, for establishing the first transmission with the second terminal
Control protocol TCP connections connect with the 2nd TCP, and the first TCP connections connect with the 2nd TCP
Port numbers it is different；
First sending module, connected to the second terminal and sent out by the first TCP specifically for end
The previewing file is sent to ask；Connected by the first TCP to the second terminal and send the file biography
Defeated request；
First receiving module, sent out specifically for receiving the second terminal by the first TCP connections
The previewing file data sent；Received by the 2nd TCP connections described in the second terminal transmission
At least one file data.
11. the device according to claim 9 or 10, it is characterised in that the previewing file data are
The thumbnail of preview file；
The previewing file request includes asking the file type and preview file thumbnail dimensions of preview, described
File type includes at least one of picture, video, document；
First receiving module, at least one preview file sent specifically for receiving the second terminal
File name, file type, file size and thumbnail code data.
12. the device according to claim 9 or 10, it is characterised in that described device also includes：It is aobvious
Show module, for showing at least one previewing file data to the user；
The acquisition module, at least one previewing file data specifically for obtaining user's selection, by described in
At least one previewing file data of user's selection are transmitted as the file to be indicated, the file transmission instruction
For indicating to transmit the file data corresponding at least one previewing file data of user's selection.
13. a kind of data transmission device, it is characterised in that described device includes：
Second receiving module, for receiving the previewing file request of first terminal transmission, the previewing file please
Seek at least one file data for asking data transmission device described in preview to store；
Second sending module, for sending at least one previewing file data, Mei Gewen to the first terminal
The size of part preview data is less than the size of corresponding file data；
Second receiving module, it is additionally operable to receive the first terminal transmission file transmission request；
Second sending module, it is additionally operable to send at least one file data to the first terminal.
14. the device according to claim 13, it is characterised in that second receiving module, also use
In the user datagram protocol udp broadcast message for receiving the first terminal transmission；
Described device also includes：Second connection establishment module, for establishing the first transmission with the first terminal
Control protocol TCP connections connect with the 2nd TCP, and the first TCP connections connect with the 2nd TCP
Port numbers it is different；
Second receiving module, specifically for receiving what first terminal was sent by the first TCP connections
Previewing file is asked；The first terminal is received by the first TCP connections and sends file transmission request；
Second sending module, sent specifically for being connected by the first TCP to the first terminal
At least one previewing file data；By the 2nd TCP connect to the first terminal send described at least
One file data.
15. the device according to claim 13 or 14, it is characterised in that described device also includes：
Generation module, for generating at least one previewing file data according to previewing file request.
16. the device according to claim 13 or 14, it is characterised in that the previewing file data
For the thumbnail of preview file；
The previewing file request includes asking the file type and preview file thumbnail dimensions of preview, described
File type includes at least one of picture, video, document；
Second sending module, the text specifically for sending at least one preview file to the first terminal
Part title, file type, file size and thumbnail code data.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610556382.5A CN107634974A (en) | 2016-07-15 | 2016-07-15 | A kind of data transmission method and device |
| PCT/CN2017/081964 WO2018010469A1 (en) | 2016-07-15 | 2017-04-26 | Data transmission method, device and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610556382.5A CN107634974A (en) | 2016-07-15 | 2016-07-15 | A kind of data transmission method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107634974A true CN107634974A (en) | 2018-01-26 |
Family
ID=60951908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610556382.5A Withdrawn CN107634974A (en) | 2016-07-15 | 2016-07-15 | A kind of data transmission method and device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107634974A (en) |
| WO (1) | WO2018010469A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109558551A (en) * | 2018-10-26 | 2019-04-02 | 东软集团股份有限公司 | Method, apparatus, storage medium and the electronic equipment of previewing file |
| CN112769848A (en) * | 2021-01-18 | 2021-05-07 | 中国民航信息网络股份有限公司 | Message sending method and device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112055078B (en) * | 2020-09-02 | 2023-10-03 | 数字广东网络建设有限公司 | Data transmission method, device, computer equipment and storage medium |
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| US20140223482A1 (en) * | 2013-02-05 | 2014-08-07 | Redux, Inc. | Video preview creation with link |
| CN104573090A (en) * | 2015-01-29 | 2015-04-29 | 深圳市中兴移动通信有限公司 | File sharing method and device and terminal |
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| KR20050041367A (en) * | 2003-10-30 | 2005-05-04 | 주식회사 팬택앤큐리텔 | Mobile telecommunication terminal to search moving picture previously by user and method for searching moving picture previously |
| CN103634362A (en) * | 2012-08-28 | 2014-03-12 | 金蝶软件（中国）有限公司 | File transfer method, file server and file transfer system |
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| US20140223482A1 (en) * | 2013-02-05 | 2014-08-07 | Redux, Inc. | Video preview creation with link |
| CN104573090A (en) * | 2015-01-29 | 2015-04-29 | 深圳市中兴移动通信有限公司 | File sharing method and device and terminal |
| CN105451161A (en) * | 2015-11-06 | 2016-03-30 | 上海斐讯数据通信技术有限公司 | Method and system for realizing file sharing based on built-in base station way of android phone |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109558551A (en) * | 2018-10-26 | 2019-04-02 | 东软集团股份有限公司 | Method, apparatus, storage medium and the electronic equipment of previewing file |
| CN112769848A (en) * | 2021-01-18 | 2021-05-07 | 中国民航信息网络股份有限公司 | Message sending method and device |
| CN112769848B (en) * | 2021-01-18 | 2022-12-20 | 中国民航信息网络股份有限公司 | Message sending method and device |
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| Publication number | Publication date |
|---|---|
| WO2018010469A1 (en) | 2018-01-18 |
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Application publication date: 20180126 |