CN105897911A - File downloading method and device and user terminal - Google Patents
File downloading method and device and user terminal Download PDFInfo
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- CN105897911A CN105897911A CN201610345945.6A CN201610345945A CN105897911A CN 105897911 A CN105897911 A CN 105897911A CN 201610345945 A CN201610345945 A CN 201610345945A CN 105897911 A CN105897911 A CN 105897911A
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- Prior art keywords
- download
- byte length
- total byte
- file
- server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
Abstract
The embodiment of the invention provides a file downloading method and device and a user terminal. The method comprises the following steps: receiving a download link returned by a first server, wherein the download link includes a first total byte length of a target file; initiating an HTTP request of downloading the target file to a second server which corresponds to the download link; receiving HTTP response header information returned by the second server, wherein the HTTP response header information includes a second total byte length of a current file; and when the first total byte length is consistent with the second total byte length, starting to download the current file. The method is simple and efficient; an interface protocol between a client and a server side does not need to be modified; the correctness of application distribution is ensured; the download success rate is increased; and the download experience of a user is improved.
Description
Technical field
The present invention relates to computer application field, download the method for file, device and user eventually in particular to a kind of
End.
Background technology
Current downloaded software is when downloading application file, it is possible that download in file byte data entanglement or data mixed
Miscellaneous web page source code data, cause the situation of install failure；Or there will be owing to operator has redirected download link or replaces
Change download content so that the application file downloaded becomes the application that other operator promotes, and causes the application installed
The situation of application file expected from non-user.Both of these case can make the flow of user be wasted, failed download rate high and user
Experience poor.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is that providing a kind of downloads the method for file, device and user terminal,
To solve the problems referred to above.
To achieve these goals, the technical scheme that the embodiment of the present invention uses is as follows:
First aspect, embodiments provides a kind of method downloading file, and described method includes: receive the first clothes
The download link that business device returns, described download link includes the first total byte length of file destination；To with described download link
Corresponding second server initiates to download the HTTP request of described file destination；Receive the HTTP sound that described second server returns
Header, described http response header is answered to include the second total byte length of current file；When described first total byte length
Time consistent with described second total byte length, start to download described current file.
Second aspect, embodiments provides a kind of device downloading file, and described device includes: first receives mould
Block, for receiving the download link that first server returns, described download link includes the first total byte length of file destination；
Sending module, for initiating to download the HTTP request of described file destination to the second server corresponding with described download link；
Second receiver module, for receiving the http response header that described second server returns, described http response header bag
Include the second total byte length of current file；Download module, for when described first total byte length and described second total byte
When length is consistent, start to download described current file.
The third aspect, embodiments provides a kind of user terminal, and described user terminal includes processor and deposits
Reservoir, described memorizer is couple to described processor, and described memory store instruction, when described instruction is performed by described processor
Time make described user terminal perform following operation: receiving the download link that first server returns, described download link includes mesh
First total byte length of mark file；Initiate to download described file destination to the second server corresponding with described download link
HTTP request；Receiving the http response header that described second server returns, described http response header includes ought be above
Second total byte length of part；When described first total byte length is consistent with described second total byte length, start to download institute
State current file.
Compared with prior art, a kind of of embodiment of the present invention offer downloads the method for file, device and user terminal, logical
Cross before downloading current file, the described first total byte length of test-target file and described second total word of current file
Joint length is the most consistent, and to realize the inspection to the current legitimacy downloading file, described method is without revising client and clothes
The interface protocol of business end, it is achieved get up simple efficient, solve and mix in download application file byte data entanglement or data
Web page source code data cause install failure and operator to redirect expected from the application non-user that download link causes installing
The problem of application file, improves download success rate and user's downloading experience.
For making the above-mentioned purpose of the present invention, feature and advantage to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below by embodiment required use attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other relevant accompanying drawings.
Fig. 1 is the schematic diagram that the user terminal that the embodiment of the present invention provides interacts with server.
Fig. 2 is the structural representation of the user terminal that the embodiment of the present invention provides.
Fig. 3 is the flow chart of a kind of method downloading file that first embodiment of the invention provides.
Fig. 4 is the flow chart of a kind of method downloading file that second embodiment of the invention provides.
Fig. 5 is the flow chart of a kind of method downloading file that third embodiment of the invention provides.
Fig. 6 is the flow chart of a kind of method downloading file that fourth embodiment of the invention provides.
Fig. 7 is the flow chart of a kind of method downloading file that fifth embodiment of the invention provides.
Fig. 8 is the flow chart of a kind of method downloading file that sixth embodiment of the invention provides.
Fig. 9 is a kind of structured flowchart downloading file device that the embodiment of the present invention provides.
Detailed description of the invention
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Generally exist
Can arrange and design with various different configurations with the assembly of the embodiment of the present invention that illustrates described in accompanying drawing herein.Cause
This, be not intended to limit claimed invention to the detailed description of the embodiments of the invention provided in the accompanying drawings below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, broadly falls into the scope of protection of the invention.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.Meanwhile, the present invention's
In description, term " first ", " second " etc. are only used for distinguishing and describe, and it is not intended that indicate or hint relative importance.
Fig. 1 shows the schematic diagram that the server 200 that the embodiment of the present invention provides interacts with user terminal 100.Institute
State server 200 to be communicatively coupled with one or more user terminals 100 by network 300, to carry out data communication or friendship
Mutually.Described server 200 can be the webserver, database server etc..Described user terminal 100 can be PC
(personal computer, PC), panel computer, smart mobile phone, personal digital assistant (personal digital
Assistant, PDA), mobile unit, wearable device etc..
Fig. 2 shows the structured flowchart of a kind of user terminal 100 that can be applicable in the embodiment of the present invention.As in figure 2 it is shown,
User terminal 100 includes memorizer 102, storage control 104, one or more (only illustrating one in figure) processor 106, outer
If interface 108, radio-frequency module 110, audio-frequency module 112, Touch Screen 114 etc..These assemblies are total by one or more communication
The mutual communication of line/holding wire 116.
Memorizer 102 can be used for storing software program and module, such as the method downloading file in the embodiment of the present invention
And programmed instruction/module that device is corresponding, processor 106 by operation be stored in the software program in memorizer 102 and
Module, thus the application of various function and data process, the method downloading file provided such as the embodiment of the present invention are provided.
Memorizer 102 can include high speed random access memory, may also include nonvolatile memory, such as one or more magnetic
Property storage device, flash memory or other non-volatile solid state memories.Processor 106 and other possible assemblies are to storage
The access of device 102 can be carried out under the control of storage control 104.
Various input/output devices are coupled to processor 106 and memorizer 102 by Peripheral Interface 108.Implement at some
In example, Peripheral Interface 108, processor 106 and storage control 104 can realize in one single chip.In some other reality
In example, they can be realized by independent chip respectively.
Radio-frequency module 110 is used for receiving and sending electromagnetic wave, it is achieved electromagnetic wave is changed with the mutual of the signal of telecommunication, thus with
Communication network or other equipment carry out communication.
Audio-frequency module 112 provides a user with audio interface, and it can include one or more mike, one or more raises
Sound device and voicefrequency circuit.
Touch Screen 114 provides an output and inputting interface between user terminal 100 and user simultaneously.Specifically,
Touch Screen 114 displays to the user that video frequency output, and the content of these video frequency output can include word, figure, video and arbitrarily
Combination.
Be appreciated that the structure shown in Fig. 1 be only signal, user terminal 100 may also include more more than shown in Fig. 2 or
Less assembly, or there is the configuration different from shown in Fig. 2.Each assembly shown in Fig. 2 can use hardware, software or its
Combination realizes.
In the embodiment of the present invention, being provided with client in user terminal 100, this client can be that third-party application is soft
Part, holds corresponding with server (Server), jointly follows same set of data protocol so that service end can be mutual with client
Parse the data of the other side, provide the user download service, such as, download file, foradownloaded video, download audio frequency etc..
Fig. 3 shows the flow chart of a kind of method downloading file that first embodiment of the invention provides, and refers to Fig. 3,
What the present embodiment described is the handling process of client, and described method includes:
Step S301, receives the download link that first server returns, and described download link includes the first of file destination
Total byte length；
It is understood that the first total byte length in described download link, can be pre-by described first server
Existing file first carries out processing the total byte length of each file obtained.The total byte that server obtains each file is long
After the download link of each file, add this parameter of total byte length after degree, obtain new download link, and update first
The data base of server.After described first server receives the download link request of client, file destination is corresponding
Download link returns to client.
For example, it is assumed that the download link corresponding for file A of storage is before in first server: http://android-
Apps.25pp.com/fs01/2015/01/29/5/0_dd84568d3e5831d f12dac8cedc556e52.apk,
First server obtains the total byte length of file A by calculating, it is assumed that be 19736456, then first server will
Download link corresponding for file A is updated to:
Http:// android-apps.25pp.com/fs01/2015/01/29/5/0_
dd84568d3e5831df12dac8cedc556e52.apk？Size=19736456, wherein, size=19736456 is target
The total byte length of file A.
When after the download link request that described first server receives using file A as file destination, size will be comprised
The download link of=19736456 returns to client.
Step S302, the HTTP initiating to download described file destination to the second server corresponding with described download link please
Ask；
Such as, in aforementioned exemplary, after client receives download link corresponding to file destination A, to described download
Link:
Http:// android-apps.25pp.com/fs01/2015/01/29/5/0_dd84568d3e5831 df12
dac8cedc556e52.apk？Size=19736456,
Corresponding second server initiates to download the HTTP request of described file destination.
It is understood that described first server can be same server with described second server, the most permissible
The content of file destination is individually stored in second server, it is also possible to store under file destination in first server simultaneously
Carry link and the content of file destination.
Step S303, receives the http response header that described second server returns, described http response header bag
Include the second total byte length of current file；
After second server receives described HTTP request, http response information can be returned.Wherein, http response information bag
Include http response header and http response text message.Resolve the http response header in described http response information, its
In, http response header can include multiple field, take out the field of the total byte length representing current file, such as
" content-range " field, by this field, first server just can know the size of the file that current request downloads,
Namely the second total byte length.
Step S304, when described first total byte length is consistent with described second total byte length, starts download described
Current file.
If it is understood that mix web page source code data in application file byte data entanglement or data, or
Operator has redirected download link or substituted for downloading content, it will usually cause described first total byte length and described second
Total byte length is inconsistent, therefore when described first total byte length and described second total byte length are inconsistent, can sentence
Settled front lower published article part not file destination.Therefore inconsistent with described second total byte length when described first total byte length
Time, again can initiate to download the HTTP request of described file destination to second server.
The method downloading file that the embodiment of the present invention provides, by downloading before current file, test-target file
Described first total byte length the most consistent with the described second total byte length of current file, check and currently download file
Whether is same file with file destination, described method is to test before downloading rather than ask in downloading process
Ask the server to test, saved the time of inspection, it is to avoid have begun to download and just find that current file non-targeted are civilian
Part, it is to avoid the problem of waste customer flow.Checkout procedure coordinates without server, therefore without introducing new complexity
Logic, and without revising the interface protocol of client and service end, it is only necessary to regenerate target literary composition in data base in advance
The download link that part is corresponding, this mode is simply effective, and solves application file byte data entanglement to a certain extent
Or mix in data web page source code data cause install failure and operator redirected download link cause install should
Problem with application file expected from non-user.
Fig. 4 shows the flow chart of a kind of method downloading file that second embodiment of the invention provides, and refers to Fig. 4,
What the present embodiment described is the handling process of client, and described method includes:
Step S401, receives the download link that first server returns, and described download link includes the first of file destination
Total byte length；
Step S402, the HTTP initiating to download described file destination to the second server corresponding with described download link please
Ask；
Step S403, receives the http response header that described second server returns, described HTTP head response information bag
Include the second total byte length of current file；
It is understood that step S401 to the embodiment of step S403 is referred to the step in a upper embodiment
S301 is to the embodiment of step S303, and here is omitted.
Step S404, it is judged that described first total byte length is the most consistent with described second total byte length；
When described first total byte length and described second total byte length are inconsistent, it is possible to determine that currently download file
Not file destination.Therefore, when described first total byte length and described second total byte length are inconsistent, step is performed
S405 is to step S410, when described first total byte length is consistent with described second total byte length, performs step S411.
Step S405, it is judged that again to the number of times initiating to download the HTTP request of described file destination with second server be
No reach preset times；
It is understood that again initiate to download the HTTP of described file destination to second server in view of client
The number of times of request can affect the response speed of file download request too much, and therefore client needs to arrange a preset times, when
Again it is not reaching to preset times to the number of times initiating to download the HTTP request of described file destination with second server, performs step
Rapid S402, to step S404, otherwise performs step S406.
Step S406, the second server corresponding to described download link initiates HTTPS request.
It is understood that work as the first total byte length of described file destination and the second total byte of described current file
When length is inconsistent, it is determined that current HTTP request may be held as a hostage, and repeatedly retries and be still robbed, now use HTTPS association
View initiates the request of downloading.HTTPS i.e. Hyper text transfer security protocol, the main purpose of this agreement is to provide the webserver
Authentication, the protection privacy of interaction data and integrity.Therefore use HTTPS to be downloaded request and can ensure that download please
Ask comparatively safe, and the probability being held as a hostage is substantially reduced.However, it will be understood that HTTPS agreement needs owing to communicating every time
Wanting encryption and decryption, big to server performance expense, cost is high, so just can use in the case of HTTP request has no resolution repeatedly retrying
HTTPS makes requests on download.
It is understood that in other embodiments, preset times can also be zero, i.e. when sending out to second server
Rise HTTP request once after, if described first total byte length is inconsistent with described second total byte length, then can immediately to
The second server initiation HTTPS request that described download link is corresponding.
Step S407, receives the HTTPS head response information that described second server returns, described HTTPS head response information
The second total byte length including current file；
Step S408, it is judged that described first total byte length is the most consistent with described second total byte length；
When described first total byte length and described second total byte length are inconsistent, perform step S409, when described
When first total byte length is consistent with described second total byte length, perform step S411.
Step S409, it is judged that again initiate to download the number of times of the HTTPS request of described file destination to second server
Whether reach preset times；
It is understood that same, described preset times can be zero degree.I.e., in this case, only can be to second
Server initiates once to download the HTTPS request of described file destination.It addition, the setting of preset times can also be according to target
The importance of file determines, when file destination is important, the value of preset times can arrange bigger.
When being not reaching to default time to the number of times initiating to download the HTTPS request of described file destination with second server
Number, execution step S406, to step S407, otherwise performs step S410.
Step S410, display is for pointing out the information of user network exception.
It is understood that as a rule, when carrying out repeatedly HTTPS request, the most failed reason, great majority be due to
Network busy, the switching of network interruption or such as 2G/3G network causes, and now display is for pointing out user network exception
Information, so that after user sees described information, can initiate instruction to client further.
Step S411, starts to download described current file.
The method downloading file that the embodiment of the present invention provides, except solving a upper soluble problem of embodiment
Outward, by after reaching preset times to the number of times of HTTP request initiating to download described file destination with second server, to
Second server initiates HTTPS request, solves HTTP request further and is repeatedly held as a hostage and causes the current file of download also
Non-targeted file and the problem that cannot download, improve the success rate of download.
Fig. 5 shows the flow chart of a kind of method downloading file that third embodiment of the invention provides, and refers to Fig. 5,
What the present embodiment described is the handling process of client, and described method includes:
Step S501, receives the download link that first server returns, and described download link includes the first of file destination
Total byte length and the first digital signature of download file；
Wherein, the first digital signature, refer to that the file content to file destination is by digest algorithm or hash algorithm etc.
The fixed-length value that hash algorithm is obtained after carrying out computing, described fixed-length value is the first digital signature, such as
SHA-1 signs, RIPEMD signature and Hava signature etc..
Preferably, the first digital signature can be MD5 signature.It should be understood that the MD5 value of file similarly is this file
" digital finger-print ".The MD5 value of each file is different, if file has been done any change by anyone, its MD5 value is the most just
It is that corresponding " digital finger-print " will change.
The download link of such as target downloading file is: http://android-apps.25pp.com/fs01/2015/
01/29/5/0_dd84568d3e5831df12dac8cedc556e52.apk？Size=19736456&md5=
7ca110f191c0d918f137efd072123273,
Wherein, what size=19736456 represented is the first total byte length of this file destination: 19736456, md5=
What 7ca110f191c0d918f137efd072123273 represented is that the first digital signature of this file destination is:
7ca110f191c0d918f137efd072123273。
Step S502, the HTTP initiating to download described file destination to the second server corresponding with described download link please
Ask；
Step S503, receives the http response header that described second server returns, described http response header bag
Include the second total byte length of current file；
Step S504, it is judged that described first total byte length is the most consistent with described second total byte length；
When described first total byte length and described second total byte length are inconsistent, perform step S505 to step
S510, when described first total byte length is consistent with described second total byte length, performs step S511 to step S513.
Assume that the second total byte of the current file that described http response header includes is a length of: 19736456, can
Consistent with the second total byte length to determine described first total byte length, then can start to download.If now second is total
Byte length is not 19736456, then execution step S505 is to step S510, and described step S505 to step S510 is real with upper one
Execute step S405 in example consistent to step S410 embodiment, the most just repeat no more.
Step S505, it is judged that again to the number of times initiating to download the HTTP request of described file destination with second server be
No reach preset times；
When being not reaching to preset times to the number of times initiating to download the HTTP request of described file destination with second server,
Execution step S502, to step S504, otherwise performs step S506.
Step S506, the second server corresponding to described download link initiates HTTPS request.
Step S507, receives the HTTPS head response information that described second server returns, described HTTPS head response information
The second total byte length including current file；
Step S508, it is judged that described first total byte length is the most consistent with described second total byte length；
When described first total byte length and described second total byte length are inconsistent, perform step S509, when described
When first total byte length is consistent with described second total byte length, perform step S511 to step S513.
Step S509, it is judged that again initiate to download the number of times of the HTTPS request of described file destination to second server
Whether reach preset times；
When again being not reaching to preset to the number of times initiating to download the HTTPS request of described file destination with second server
Number of times, execution step S506, to step S507, otherwise performs step S510.
Step S510, display is for pointing out the information of user network exception.
Step S511, starts to download described current file.
Step S512, after described current file has been downloaded, calculates the second digital signature of described current file；Judge
Described first digital signature is the most consistent with described second digital signature, if unanimously, then judges that described current file is as described
File destination, downloads successfully, otherwise, and failed download.
Even if it is understood that sometimes it is possible that current file was held as a hostage, replaced or is distorted, but
It is that its second total byte size may be the most consistent with the first total byte size of file destination, the most after the download is complete, then
Described first digital signature of secondary inspection is the most consistent with described second digital signature, can more guarantee to download the legitimacy of file
And integrity.
Such as, after download completes, calculate according to the method as the first digital signature calculating file destination and work as
Second digital signature of preceding document, if unanimously, i.e. the second digital signature of current file is: 7ca110f191c0d918f137
Efd072123273, then judge that described current file, as described file destination, is downloaded successfully, on the contrary failed download.
Step S513, if failed download, display is for pointing out user the information re-downloaded.
It is understood that when described first digital signature and described second digital signature are inconsistent, explanation ought be above
The content of part was held as a hostage, and replaced or tampered, it is therefore desirable to display to the user that the letter for pointing out user to re-download
Breath, prevents user installation to be held as a hostage, and replaces or tampered current file.
The method downloading file that the embodiment of the present invention provides, except solving upper two soluble methods of embodiment
Outward, and by the digital signature of current file being detected after current file has been downloaded, further ensure that down
The legitimacy of published article part and integrity.
Fig. 6 shows the flow chart of a kind of method downloading file that fourth embodiment of the invention provides, and refers to Fig. 6,
What the present embodiment described is the handling process of client, and described method includes:
Step S601, receives the download link that first server returns, and described download link includes the first of file destination
Total byte length；
Step S602, according to described first total byte length, distributes multiple thread；
It is understood that the download for current file can be to use in the way of multithreading or single-threaded mode is entered
Row is downloaded, and whether uses multithreading, has many strategies to select, can be according to speed of download and segments and file size
The Statistical Comparison of relatedness determine, fairly simple effectively determine according to described first total byte length.Such as
Employing during a length of 256 bytes of one total byte is single-threaded, and the first total byte length is more than 256 bytes and less than 512 bytes
Time, use dual-thread, when the first total byte length is more than 512 byte, use three threads.It is understood that selection multithreading
Embodiment can have multiple, it is not limited to above-mentioned embodiment.
Step S603, initiates to download to the second server corresponding with described download link by the plurality of thread respectively
The HTTP request of described file destination；
Step S604, receives, by the plurality of thread, the http response header that described second server returns respectively,
Described http response header includes the second total byte length of current file；
Step S605, when described first total byte length is consistent with described second total byte length, each thread is respectively
Start to download described current file.
It is understood that described step S603 is to step S302 in step S605 and first embodiment to step S304
In difference be, the present embodiment be use multithreading carry out current file segmentation download, realize step in each thread
S302 is to the method in step S304, and related content just repeats no more.
The method downloading file that the embodiment of the present invention provides, except solving, first embodiment is soluble asks
Topic, carries out segmentation download also by multithreading, accelerates the speed downloading file, and each thread can carry out described first
Total byte length and the inspection of described second total byte length, further increase the experience that user downloads.
Fig. 7 shows the flow chart of a kind of method downloading file that fifth embodiment of the invention provides, and refers to Fig. 7,
What the present embodiment described is the handling process of client, and described method includes:
Step S701, receives the download link that first server returns, and described download link includes the first of file destination
Total byte length；
Step S702, according to described first total byte length, distributes multiple thread；
Step S703, initiates to download to the second server corresponding with described download link by the plurality of thread respectively
The HTTP request of described file destination；
Step S704, receives, by the plurality of thread, the http response header that described second server returns respectively,
Described http response header includes the second total byte length of current file；
Step S705, each thread judges that described first total byte length is the most consistent with described second total byte length；
When described first total byte length and described second total byte length are inconsistent, it is determined that go out inconsistent thread and hold
Row step S706 is to step S711, when described first total byte length is consistent with described second total byte length, performs step
S712。
Step S706, it is judged that again to the number of times initiating to download the HTTP request of described file destination with second server be
No reach preset times；
When being not reaching to preset times to the number of times initiating to download the HTTP request of described file destination with second server,
Execution step S703, to step S705, otherwise performs step S707.
Step S707, initiates HTTP request to the second server that described download link is corresponding again；
Step S708, receives the HTTPS head response information that described second server returns, described HTTPS head response information
The second total byte length including current file；
Step S709, it is judged that described first total byte length is the most consistent with described second total byte length；
When described first total byte length and described second total byte length are inconsistent, perform step S710, when described
When first total byte length is consistent with described second total byte length, perform step S711.
Step S710, it is judged that again initiate to download the number of times of the HTTPS request of described file destination to second server
Whether reach preset times；
When being not reaching to default time to the number of times initiating to download the HTTPS request of described file destination with second server
Number, execution step S707, to step S708, otherwise performs step S711.
Step S711, display is for pointing out the information of user network exception.
Step S712, each thread starts to download described current file.
It is understood that described step S703 is to step S402 in step S712 and the second embodiment to step S411
In difference be, the present embodiment be use multithreading carry out current file segmentation download, realize step in each thread
S402 is to the method in step S411, and the most no longer this repeats related content.
The method downloading file that the embodiment of the present invention provides, except solving, the second embodiment is soluble asks
Topic, carries out segmentation download also by multithreading, accelerates the speed downloading file, and each thread can be to second
After the number of times of the HTTP request that server initiates the described file destination of download reaches preset times, initiate to second server
HTTPS request, solve further HTTP request be repeatedly held as a hostage and cause download current file not file destination and
The problem that cannot download, improves the success rate of download, further increases the experience that user downloads.
Fig. 8 shows the flow chart of a kind of method downloading file that sixth embodiment of the invention provides, and refers to Fig. 8,
What the present embodiment described is the handling process of client, and described method includes:
Step S801, receives the download link that first server returns, and described download link includes the first of file destination
Total byte length；
Step S802, according to described first total byte length, distributes multiple thread；
Step S803, initiates to download to the second server corresponding with described download link by the plurality of thread respectively
The HTTP request of described file destination；
Step S804, receives, by the plurality of thread, the http response header that described second server returns respectively,
Described http response header includes the second total byte length of current file；
Step S805, each thread judges that described first total byte length is the most consistent with described second total byte length；
When described first total byte length and described second total byte length are inconsistent, it is determined that go out inconsistent thread and hold
Row step S806 is to step S811, when described first total byte length is consistent with described second total byte length, performs step
S812。
Step S806, it is judged that again to the number of times initiating to download the HTTP request of described file destination with second server be
No reach preset times；
When being not reaching to preset times to the number of times initiating to download the HTTP request of described file destination with second server,
Execution step S803, to step S805, otherwise performs step S807.
Step S807, initiates HTTP request to the second server that described download link is corresponding again；
Step S808, receives the HTTPS head response information that described second server returns, described HTTPS head response information
The second total byte length including current file；
Step S809, it is judged that described first total byte length is the most consistent with described second total byte length；
When described first total byte length and described second total byte length are inconsistent, perform step S810, when described
When first total byte length is consistent with described second total byte length, perform step S811.
Step S810, it is judged that again initiate to download the number of times of the HTTPS request of described file destination to second server
Whether reach preset times；
When being not reaching to default time to the number of times initiating to download the HTTPS request of described file destination with second server
Number, execution step S807, to step S808, otherwise performs step S811.
Step S811, display is for pointing out the information of user network exception.
Step S812, each thread starts to download described current file.
It is understood that the part that content is current file that each thread is downloaded.Such as: current file size
100 bytes, point 3 threads are downloaded, then 0-33 byte is downloaded in first thread just request, the just request of the second thread
Downloading 34-67 byte, the byte of 68-100 is downloaded in the just request of the 3rd thread.
Step S813, when each thread is downloaded complete, i.e. current file is downloaded complete, calculates the second of described current file
Digital signature；Judge that described first digital signature is the most consistent with described second digital signature, if unanimously, then judge described working as
Preceding document is described file destination, downloads successfully, otherwise, and failed download.
Step S814, when described current file failed download, display is for pointing out user the information re-downloaded.
It is understood that described step S803 is to step S502 in step S814 and the second embodiment to step S513
In difference be, the present embodiment be use multithreading carry out current file segmentation download, realize step in each thread
S502 is to the method in step S513, and the most no longer this repeats related content.
The method downloading file that the embodiment of the present invention provides, except solving, the 3rd embodiment is soluble asks
Topic, carries out segmentation download also by multithreading, accelerates the speed downloading file, and after each thread has been downloaded, meeting
After having downloaded current file, the digital signature to current file detects, it is ensured that current file is consistent with file destination,
Guarantee the correctness of distribution, further increase the experience that user downloads.
Refer to Fig. 9, be the high-level schematic functional block diagram of the device 200 downloading file that the embodiment of the present invention provides.Described
The device 200 downloading file includes the first receiver module 201, sending module 202, the second receiver module 203 and download module
204。
Described first receiver module 201, for receiving the download link that first server returns, described download link includes
First total byte length of file destination；
Described sending module 202, for initiating to download described target to the second server corresponding with described download link
The HTTP request of file；
Described second receiver module 203, for receiving the http response header that described second server returns, described
Http response header includes the second total byte length of current file；
Described download module 204, for when described first total byte length is consistent with described second total byte length, opens
Begin to download described current file.
Consider when HTTP request can also need to after being held as a hostage continue to download file, it is preferred, therefore, that described device also wraps
Include: the first request module 205, described first request module 205, for when described first total byte length and described second total word
When joint length is inconsistent, again initiate HTTP request to the second server that described download link is corresponding.
Further, it is considered to if initiating after repeatedly HTTP request is still held as a hostage, in addition it is also necessary to continue to download file, therefore,
Preferably, described device also includes: the second request module 206, described second request module 206, for described download link
After corresponding second server initiates the HTTP request of preset times, described first total byte length is long with described second total byte
When spending the most inconsistent, then initiate HTTPS request to the second server that described download link is corresponding.
Further, it is contemplated that if the current file downloaded to is consistent with the total byte size of file destination, but also
Be likely to occur the situation that the content of file is not consistent, accordingly, it is preferred that described first receiver module 201 receive described under
Carrying link and also include downloading the first digital signature of file, described device also includes judge module 207, described judge module 207,
After starting to download described current file at described download module 204, after described current file has been downloaded, calculate
Second digital signature of described current file；Judge that described first digital signature is the most consistent with described second digital signature, as
Fruit is consistent, then judge that described current file, as described file destination, is downloaded successfully, otherwise, and failed download.
Further, it is contemplated that file destination not of uniform size, in fact it could happen that during bigger file, multithreading is used to add
The fast speed downloaded, it is therefore preferred that described device also includes distributing module 208, described distribution module 208 is for according to described
First total byte length, distributes multiple thread；Described sending module 202, be additionally operable to by the plurality of thread respectively to institute
State second server corresponding to download link and initiate to download the HTTP request of described file destination；Described second receiver module 203,
It is additionally operable to receive the http response header that described second server returns, described http response respectively by the plurality of thread
Header includes the second total byte length of current file；Described download module 204, is additionally operable to when described first total byte length
Time consistent with described second total byte length, each thread starts to download described current file respectively.Described first request module
205, it is additionally operable to when determining described first total byte length and being inconsistent with described second total byte length, it is determined that go out inconsistent
Thread again initiate HTTP request to second server corresponding to described download link.Described second request module 206, also uses
In described determine inconsistent thread initiate the HTTP of preset times to second server corresponding to described download link please
After asking, when described first total byte length and described second total byte length are the most inconsistent, described in determine inconsistent line
Journey initiates HTTPS request to the second server that described download link is corresponding.
The most each module can be by software code realization, and now, above-mentioned each module can be stored in user terminal 100
In memorizer 102.The most each module is equally realized by hardware such as IC chip.
It should be noted that each embodiment in this specification all uses the mode gone forward one by one to describe, each embodiment weight
Point explanation is all the difference with other embodiments, and between each embodiment, identical similar part sees mutually.
The device downloading file that the embodiment of the present invention is provided, it realizes principle and the technique effect of generation and aforementioned
Embodiment of the method is identical, for briefly describing, and the not mentioned part of device embodiment part, refer in preceding method embodiment corresponding
Content.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, it is also possible to pass through
Other mode realizes.Device embodiment described above is only schematically, such as, and the flow chart in accompanying drawing and block diagram
Show the device of multiple embodiments according to the present invention, the architectural framework in the cards of method and computer program product,
Function and operation.In this, each square frame in flow chart or block diagram can represent a module, program segment or the one of code
Part, a part for described module, program segment or code comprises holding of one or more logic function for realizing regulation
Row instruction.It should also be noted that at some as in the implementation replaced, the function marked in square frame can also be to be different from
The order marked in accompanying drawing occurs.Such as, two continuous print square frames can essentially perform substantially in parallel, and they are the most also
Can perform in the opposite order, this is depending on involved function.It is also noted that every in block diagram and/or flow chart
The combination of the square frame in individual square frame and block diagram and/or flow chart, can be with function or the special base of action performing regulation
System in hardware realizes, or can realize with the combination of specialized hardware with computer instruction.
It addition, each functional module in each embodiment of the present invention can integrate one independent portion of formation
Point, it is also possible to it is modules individualism, it is also possible to two or more modules are integrated to form an independent part.
If described function is using the form realization of software function module and as independent production marketing or use, permissible
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is the most in other words
The part contributing prior art or the part of this technical scheme can embody with the form of software product, this meter
Calculation machine software product is stored in a storage medium, including some instructions with so that a computer equipment (can be individual
People's computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.
And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as memorizer (RAM, Random Access Memory), magnetic disc or CD.Need
Being noted that in this article, the relational terms of such as first and second or the like is used merely to an entity or operation
Separate with another entity or operating space, and exist any this between not necessarily requiring or imply these entities or operating
Actual relation or order.And, term " includes ", " comprising " or its any other variant are intended to nonexcludability
Comprise, so that include that the process of a series of key element, method, article or equipment not only include those key elements, but also wrap
Include other key elements being not expressly set out, or also include want intrinsic for this process, method, article or equipment
Element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that including described wanting
Process, method, article or the equipment of element there is also other identical element.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.It should also be noted that similar label and letter exist
Figure below represents similar terms, therefore, the most a certain Xiang Yi accompanying drawing is defined, is then not required in accompanying drawing subsequently
It is defined further and explains.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.
Claims (19)
1. the method downloading file, it is characterised in that described method includes:
Receiving the download link that first server returns, described download link includes the first total byte length of file destination；
Initiate to download the HTTP request of described file destination to the second server corresponding with described download link；
Receiving the http response header that described second server returns, described http response header includes the of current file
Two total byte length；
When described first total byte length is consistent with described second total byte length, start to download described current file.
Method the most according to claim 1, it is characterised in that described method also includes:
When described first total byte length and described second total byte length are inconsistent, again corresponding to described download link
Second server initiates HTTP request.
Method the most according to claim 1, it is characterised in that described method also includes: corresponding to described download link
After second server initiates the HTTP request of preset times, described first total byte length is with described second total byte length the most not
Time consistent, then initiate HTTPS request to the second server that described download link is corresponding.
Method the most according to claim 3, it is characterised in that at the described second server corresponding to described download link
After initiating HTTPS request, described method also includes:
When the failure of described HTTPS request, display is for pointing out the information of user network exception.
Method the most according to claim 1, it is characterised in that described download link also includes the first numeral downloading file
Signature, described start to download described current file after, described method also includes:
After described current file has been downloaded, calculate the second digital signature of described current file；
Judging that described first digital signature is the most consistent with described second digital signature, if unanimously, then judgement is described ought be above
Part is described file destination, downloads successfully, otherwise, and failed download.
Method the most according to claim 5, it is characterised in that after described failed download, described method also includes: aobvious
Show the information for pointing out user to re-download.
Method the most according to claim 5, it is characterised in that described first digital signature and the second digital signature are MD5
Signature.
Method the most according to claim 1, it is characterised in that initiate to the second server corresponding with described download link
Downloading the HTTP request of described file destination, receive the http response header that described second server returns, described HTTP rings
Header is answered to include the second total byte length of current file, when described first total byte length and described second total byte length
Time consistent, start to download described current file, specifically include:
According to described first total byte length, distribute multiple thread；
Initiate to download described file destination to the second server corresponding with described download link respectively by the plurality of thread
HTTP request；
The http response header that described second server returns, described http response head is received respectively by the plurality of thread
Information includes the second total byte length of current file；
When described first total byte length is consistent with described second total byte length, each thread starts to download described working as respectively
Preceding document.
Method the most according to claim 8, it is characterised in that described method also includes: when determining described first total word
When joint length is inconsistent with described second total byte length, it is determined that go out inconsistent thread again corresponding to described download link
Second server initiates HTTP request.
Method the most according to claim 9, it is characterised in that described method also includes: described determine inconsistent
Thread is after the second server that described download link is corresponding initiates the HTTP request of preset times, and described first total byte is long
When degree is the most inconsistent with described second total byte length, described in determine inconsistent thread to described download link corresponding the
Two servers initiate HTTPS request.
11. methods according to claim 1, it is characterised in that described first server and described second server are same
One server.
12. 1 kinds of devices downloading file, it is characterised in that described device includes:
First receiver module, for receiving the download link that first server returns, described download link includes file destination
First total byte length；
Sending module, please for initiating to download the HTTP of described file destination to the second server corresponding with described download link
Ask；
Second receiver module, for receiving the http response header that described second server returns, described http response head is believed
Breath includes the second total byte length of current file；
Download module, for when described first total byte length is consistent with described second total byte length, starts download described
Current file.
13. devices according to claim 12, it is characterised in that described device also includes: the first request module,
Described first request module, is used for when described first total byte length and described second total byte length are inconsistent, then
The secondary second server corresponding to described download link initiates HTTP request.
14. devices according to claim 12, it is characterised in that described device also includes: the second request module,
Described second request module, initiates the HTTP request of preset times for the second server corresponding to described download link
After, when described first total byte length and described second total byte length are the most inconsistent, then to described download link corresponding the
Two servers initiate HTTPS request.
15. devices according to claim 12, it is characterised in that the described download chain that described first receiver module receives
Connecing the first digital signature also including downloading file, described device also includes judge module,
Described judge module, for after described download module starts to download described current file, when under described current file
After load completes, calculate the second digital signature of described current file；Judge that described first digital signature is signed with described second numeral
Name is the most consistent, if unanimously, then judges that described current file, as described file destination, is downloaded successfully, otherwise, and failed download.
16. devices according to claim 12, it is characterised in that described device also includes distributing module, described distribution mould
Block, for according to described first total byte length, distributes multiple thread；Described sending module, is additionally operable to by the plurality of thread
Initiate to download the HTTP request of described file destination to the second server corresponding with described download link respectively；Described second connects
Receive module, be additionally operable to receive, by the plurality of thread, the http response header that described second server returns respectively, described
Http response header includes the second total byte length of current file；Described download module, is additionally operable to when described first total word
When joint length is consistent with described second total byte length, each thread starts to download described current file respectively.
17. devices according to claim 16, it is characterised in that described first request module, are additionally operable to when determining institute
State the first total byte length and described second total byte length inconsistent time, it is determined that go out inconsistent thread again to described download
The second server initiation HTTP request that link is corresponding.
18. devices according to claim 17, it is characterised in that described second request module, are additionally operable in described judgement
Go out inconsistent thread after second server corresponding to described download link initiates the HTTP request of preset times, described the
When one total byte length and described second total byte length are the most inconsistent, described in determine inconsistent thread to described download chain
The second server connecing correspondence initiates HTTPS request.
19. 1 kinds of user terminals, it is characterised in that described user terminal includes processor and memorizer, described memorizer coupling
Receive described processor, described memory store instruction, make described user terminal when executed by the processor
Operation below performing:
Receiving the download link that first server returns, described download link includes the first total byte length of file destination；
Initiate to download the HTTP request of described file destination to the second server corresponding with described download link；
Receiving the http response header that described second server returns, described http response header includes the of current file
Two total byte length；
When described first total byte length is consistent with described second total byte length, start to download described current file.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610345945.6A CN105897911A (en) | 2016-05-20 | 2016-05-20 | File downloading method and device and user terminal |
| PCT/CN2017/083270 WO2017198079A1 (en) | 2016-05-20 | 2017-05-05 | File download method and apparatus, user terminal and machine-readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610345945.6A CN105897911A (en) | 2016-05-20 | 2016-05-20 | File downloading method and device and user terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105897911A true CN105897911A (en) | 2016-08-24 |
Family
ID=56717164
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610345945.6A Pending CN105897911A (en) | 2016-05-20 | 2016-05-20 | File downloading method and device and user terminal |
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|---|---|
| CN (1) | CN105897911A (en) |
| WO (1) | WO2017198079A1 (en) |
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| WO2017198079A1 (en) | 2017-11-23 |
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