CN103312792A - Method and system for reading file from external storage equipment - Google Patents
Method and system for reading file from external storage equipment Download PDFInfo
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- CN103312792A CN103312792A CN2013102021794A CN201310202179A CN103312792A CN 103312792 A CN103312792 A CN 103312792A CN 2013102021794 A CN2013102021794 A CN 2013102021794A CN 201310202179 A CN201310202179 A CN 201310202179A CN 103312792 A CN103312792 A CN 103312792A
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Abstract
The invention discloses a method and a system for reading a file from external storage equipment. The external storage equipment downloads the file from a network side and stores mark information for only marking the file and a downloading address at the same time; terminal equipment reads the mark information of the file and the downloading address in the external storage equipment, reads the file according to bytes when the file is read, and records a current reading position in real time; when the terminal equipment reads the file downloaded by the external storage equipment and the external storage equipment does not exist or is unplugged, the terminal equipment can download and read content behind a file current reading position when an unusual condition happens from the network side according to the mark information and the downloading address under the condition that a network is available; and unread residual content of the file can be continually read so that a file reading process is not interrupted, a read resource is sufficiently utilized, and the stability and the practicability of applying the system are improved.
Description
Technical field
The present invention relates to the technical field that file reads download, relate in particular to a kind of from external storage equipment the method and system of file reading.
Background technology
Existing terminal equipment reads the process of the file that external storage equipment downloads to from network terminal, because whether terminal equipment is to detect file to exist before file reading, thereby when the terminal equipment such as being pulled out and being connected unusual situation with external storage equipment if there is external storage equipment, terminal equipment then can report an error to point out and process, and the process that reads is stopped.Because the interruption that file reads process can cause the resource that has read to be wasted, and then reduce stability and the practicality of system applies.
Summary of the invention
Main purpose of the present invention for provide a kind of from external storage equipment the method and system of file reading, be intended to terminal equipment and read to occur reading in the file process of external storage equipment and can solve by the mode that network is downloaded the problem that the process that reads is ended when unusual.
A kind of from external storage equipment the method for file reading, may further comprise the steps:
Terminal equipment obtains identification information and the download address of external storage equipment File, and this identification information is used for the described file of unique identification, and described identification information and download address leave in the terminal equipment;
Terminal equipment reads described external storage equipment File;
Terminal equipment detects external storage equipment and is connected with terminal equipment when unusual, records the current position of reading;
Terminal equipment is according to described identification information and the current position of reading, the current all the elements that read after the position that read described file from network terminal.
Preferably, preferably,
Described terminal equipment obtains the identification information of external storage equipment File and the step of download address also comprises before:
The terminal equipment that links to each other with external storage equipment is from the network terminal download and preserve described file to external storage equipment, and the identification information that file is corresponding, download address are kept in the terminal equipment simultaneously.
Preferably, described identification information comprises filename and the download address of described file at least;
Described terminal equipment reads described file and specifically comprises: described terminal equipment is byte-by-byte in order to read described file.
Preferably, described terminal equipment is according to described identification information and the current position of reading, and the current step that reads all the elements after the position that reads described file from network terminal specifically comprises:
Terminal equipment is searched described file according to described identification information in network terminal;
As file as described in existing, then according to the described current position of reading, byte-by-bytely in order read current all bytes that read after the position of described file while downloading from network terminal.
Preferably, the described terminal equipment step of searching described file in network terminal according to described identification information specifically comprises:
Terminal equipment judges whether to be connected with network terminal;
If not, then prompting user is not connected with network terminal;
If then search described file according to described identification information in network terminal; Such as file as described in not existing, then prompting user does not find file.
The present invention further provide a kind of from external storage equipment the system of file reading, comprise terminal equipment, external storage equipment and network terminal, described external storage equipment links to each other with described terminal equipment, described terminal equipment links to each other with network terminal, wherein,
Described terminal equipment, for identification information and the download address of obtaining the external storage equipment File, this identification information is used for the described file of unique identification, and deposits described identification information and download address; Read described file; Detect external storage equipment and be connected with terminal equipment when unusual, record the current position of reading; According to described identification information and the current position of reading, the current all the elements that read after the position that read described file from network terminal;
Described external storage equipment is used for storing described file, reads for described terminal equipment;
Described network terminal is used for providing described file and identification information and the download address corresponding with this document, and described terminal equipment is downloaded for linking to each other with external storage equipment.
Preferably, described terminal equipment also is used for: when linking to each other with external storage equipment, download and preserve described file to external storage equipment from network terminal, the simultaneously identification information that file is corresponding, download address link is kept in the terminal equipment.
Preferably, described identification information comprises filename and the download address of described file;
Described terminal equipment also is used for, and byte-by-bytely in order reads described file.
Preferably, described terminal equipment also is used for:
Search described file according to described identification information in network terminal; As file as described in existing, then according to the described current position of reading, byte-by-bytely in order read current all bytes that read after the position of described file while downloading from network terminal.
Preferably, described terminal equipment also is used for:
Judge whether described terminal equipment is connected with network terminal; If not, then prompting user is not connected with network terminal; If then search described file according to described identification information in network terminal; When not finding described file, then prompting user does not find file
The invention provides a kind of from external storage equipment the method for file reading, when the method reads this document that this external storage equipment downloads when terminal equipment by byte, and the current position of reading of real time record, in reading the process of this document that external storage equipment downloads, terminal equipment runs into external storage equipment and terminal equipment is not connected or external storage equipment is pulled out situation, external storage equipment namely occurring is connected with terminal equipment when unusual, terminal equipment can be according to described identification information, in the situation that network can be used, the current byte that reads after the position of described file when network terminal is downloaded and read abnormal, continue to have read the residue file content that does not run through, because whether the present invention detects external storage equipment to link to each other with terminal equipment in the file reading process, disjunct the time, turn by network according to the identification information of preserving in the terminal equipment and read, can not interrupt thereby make file read process, take full advantage of and read resource, improve stability and the practicality of system applies.In addition, the present invention further provides the system corresponding with said method.
Description of drawings
Fig. 1 be of the present invention from external storage equipment the flow chart of the embodiment of the method one of file reading;
Fig. 2 be of the present invention from external storage equipment the flow chart of the embodiment of the method two of file reading;
Fig. 3 be of the present invention from external storage equipment the flow chart of the embodiment of the method three of file reading;
Fig. 4 be of the present invention from external storage equipment the flow chart of the embodiment of the method four of file reading;
Fig. 5 be of the present invention from external storage equipment the structural representation of one embodiment of system of file reading.
The realization of the object of the invention, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The invention provides a kind of from external storage equipment the method for file reading, the method is preserved the identification information of unique identification this document from the network terminal download file time by the terminal equipment that links to each other with external storage equipment, read the file process that external storage equipment downloads to from network terminal at terminal equipment, if external storage equipment is not connected with terminal equipment or in reading process external storage equipment pulled out, terminal equipment can't directly be pointed out and be made mistakes, but can obtain file identification information, required information when the inside has comprised the download files such as file unique identification of this document, in the situation that network can be used, can continue to read the residue file content that does not run through from network terminal, can not interrupt thereby make file read process, take full advantage of and read resource, improve stability and the practicality of system applies.
With reference to accompanying drawing 1, Fig. 1 be of the present invention from external storage equipment the flow chart of the embodiment of the method one of file reading.
The embodiment of the invention one propose a kind of from external storage equipment the method for file reading, comprise following concrete steps:
S11, terminal equipment obtain identification information and the download address of external storage equipment File, and this identification information is used for the described file of unique identification, and described identification information and download address leave in the terminal equipment;
In step S11, terminal equipment obtains the identification information of the file in the external storage equipment, wherein, the file including that is acquired in the external storage equipment can be used for the identification information of unique identification this document, this identification information can be the file ID code of generation or comprises the filename of file and the file attribute such as file download address, in addition, terminal equipment also obtains the file download address, and this document download address comprises the necessary information of file download address link download file.Obtain file identification information and be used for the unique identification file, can also solve owing to then can't only distinguish the problem of processing with filename may exist filename identical the time.
In addition, the file that reads in the external storage equipment at terminal equipment can be Single document, the file set that a plurality of files are formed, and each file in this document set has all comprised above-mentioned identification information.When terminal equipment reads file set in the external storage equipment, also comprise the tabulation that the identification information of each file in this document set forms in the identification information that terminal equipment gets access to.
S12, terminal equipment read described external storage equipment File;
S13, terminal equipment detect external storage equipment and are connected with terminal equipment when unusual, record the current position of reading;
In step S13, in the process of the file of terminal equipment in reading external storage equipment, the situation that not being connected appears in external storage equipment and terminal equipment or external storage equipment is pulled out can appear, at this moment, terminal equipment can't continue to read this document from external storage equipment, at this moment, the position that current file reading is read under the terminal device records.Perhaps, when reading a plurality of file, when terminal equipment can't read in the above-mentioned file set remaining file from external storage equipment, can also record position and the current file reading position that be read of institute's file reading in tabulation.
S14, terminal equipment be according to described identification information and the current position of reading, the current all the elements that read after the position that read described file from network terminal.
In step S14, terminal equipment according to this document of recording read the position after, and according to the identification information of this document that obtains, after judging that terminal equipment and network terminal are in connection status, read by this identification information and from position the continuing after beginning to download and download of reading of recording.Perhaps, terminal equipment according in the file set of recording the residue file read the position after, and obtain in order the identification information that next needs is read file according to the tabulation of the identification information that obtains, judge terminal be located at be in connection status with network terminal after, read by this identification information and from position the continuing after beginning to download and download of reading of recording.
In embodiments of the present invention, terminal equipment is before reading the external storage equipment File, the corresponding identification information of the file of preserving in the terminal equipment is read, terminal equipment byte-by-byte file reading in order in reading the process of this document, after external storage equipment in reading process, occurring and the terminal equipment such as extracting and be connected unusual situation with external storage equipment, terminal equipment can't directly be pointed out and be made mistakes, but can record the current position of reading to current file reading, and according to the identification information of obtaining file, in the situation that network can be used, the residue file content that does not run through is read in continuation from network, can not interrupt thereby make file read process, take full advantage of and read resource, improve stability and the practicality of system applies.
In embodiments of the present invention, terminal equipment includes but not limited to computer, intelligent television, smart mobile phone, set-top box etc., external storage equipment includes but not limited to that SD card, USB flash disk, hard disk, floppy disk, CD etc. have the setting of memory function, and the interface channel of network terminal includes but not limited to netting twine, wifi, 3G, GSM, CDMA, bluetooth, infrared etc.
With reference to Fig. 2, Fig. 2 be of the present invention from external storage equipment the flow chart of the embodiment of the method two of file reading.
In the present embodiment, also comprise step S10 before the described step S11: the terminal equipment that links to each other with external storage equipment is from the network terminal download and preserve described file to external storage equipment, and the identification information that file is corresponding, download address are kept in the terminal equipment simultaneously.
In step S10, by the external storage equipment download file time, terminal equipment at first obtains identification information and download address, then generate unduplicated external storage equipment file and preserve the address, with identification information, download address and file preservation address association are saved in the terminal equipment and (can be saved in database, file or flash are medium), then download file also is saved to this file that downloads in the external storage equipment according to the file preservation address that generates, when terminal equipment reads file in the external storage equipment, at first obtain to be kept at the identification information of terminal equipment File, this has been avoided external storage equipment to be connected with terminal equipment when unusual, can't obtain the problem of identification information during the file of terminal equipment in reading external storage equipment.
With reference to Fig. 3, Fig. 3 be of the present invention from external storage equipment the flow chart of the embodiment of the method three of file reading.
The present embodiment is on the basis of embodiment one, and described step S14 specifically may further comprise the steps:
S141, terminal equipment are searched described file according to described identification information in network terminal;
S142, such as file as described in existing, then according to the described current position of reading, byte-by-bytely in order read current all bytes that read after the position of described file while downloading from network terminal.
With reference to Fig. 4, Fig. 4 be of the present invention from external storage equipment the flow chart of the embodiment of the method four of file reading.
The present embodiment is on the basis of embodiment one, and described step S141 specifically may further comprise the steps:
S1411, terminal equipment judge whether to be connected with network terminal;
S1412, if not, then prompting user is not connected with network terminal;
If S1413 then searches described file according to described identification information in network terminal; Such as file as described in not existing, then prompting user does not find file.If exist, then execution in step 142.
The present invention further provide a kind of from external storage equipment the system of file reading.
With reference to Fig. 5, Fig. 5 be of the present invention from external storage equipment the structural representation of one embodiment of system of file reading.
In the present embodiment, a kind of from external storage equipment the system of file reading, comprise terminal equipment 1, external storage equipment 2 and network terminal 3, terminal equipment 1 is connected with external storage equipment 2, and terminal equipment 1 links to each other with network terminal 3 by network channel, wherein,
Described terminal equipment 1, for identification information and the download address of preserving, obtaining the file of external storage equipment 2, this identification information is used for the described file of unique identification, and described identification information and download address leave in the terminal equipment 1; Read described file; Detecting external storage equipment 2 is connected with terminal equipment 1 when unusual, according to described identification information and the current position of reading, from current all the elements that read after the position that network terminal 3 reads described file, terminal equipment also is used for generating the unduplicated file of external storage equipment and preserves the address;
In addition, the file that reads in the external storage equipment 2 at terminal equipment 1 can be Single document, also can be the file set that a plurality of files form, and each file in this document set has all comprised above-mentioned identification information.When terminal equipment 1 read file set in the external storage equipment 2, terminal equipment 1 got access to the tabulation that the identification information that also comprises each file in this document set in the identification information forms.In the process of the file of terminal equipment 1 in reading external storage equipment, external storage equipment 2 and terminal equipment 1 can occur and the situation that is not connected or is pulled out occur, at this moment, terminal equipment 1 can't continue to read this document from extraneous memory device 2, at this moment, terminal equipment 1 is recorded the position that current file reading is read.Perhaps, when terminal equipment 1 can't read in the above-mentioned file set remaining file, can also record position and the current file reading position that be read of institute's file reading in tabulation.
Described external storage equipment 2 is used for storing described file, obtains for described terminal equipment 1;
Described network terminal 3 is used for providing described file and identification information and the download address corresponding with this document, downloads for the described terminal equipment 1 that links to each other with external storage equipment 2.
In embodiments of the present invention, terminal equipment 1 is before reading external storage equipment 2 Files, the corresponding identification information of file is obtained, terminal equipment 1 byte-by-byte file reading in order in reading the process of this document, after external storage equipment 2 in reading process, occurring and the terminal equipment such as extracting and be connected unusual situation with external storage equipment, terminal equipment 1 can't directly be pointed out and be made mistakes, but can record the current position of reading to current file reading, and according to the identification information of obtaining file, in the situation that network can be used, the residue file content that does not run through is read in continuation from network terminal 3, can not interrupt thereby make file read process, take full advantage of and read resource, improve stability and the practicality of system applies.
In embodiments of the present invention, terminal equipment 1 includes but not limited to computer, intelligent television, smart mobile phone, set-top box etc., external storage equipment 3 includes but not limited to that SD card, USB flash disk, hard disk, floppy disk, CD etc. have the setting of memory function, and the interface channel of network terminal 3 includes but not limited to netting twine, wifi, 3G, GSM, CDMA, bluetooth, infrared etc.
In further implementation process, described terminal equipment 1 also is used for: download described file and the described identification informations corresponding with this document from network terminal 3.
In further implementation process, described terminal equipment 1 also is used for: search described file according to described identification information in network terminal 3; As file as described in existing, then according to the described current position of reading, byte-by-bytely in order read current all bytes that read after the position of described file while downloading from network terminal 3.
In further implementation process, described terminal equipment 1 also is used for: judge whether described terminal equipment 1 is connected with network terminal 3; If not, then prompting user is not connected with network terminal 3; If then search described file according to described identification information in network terminal 3; When not finding described file, then prompting user does not find file.
Shortcoming and defect compared to existing technology, the present invention has the following advantages: the present invention reads on the external storage equipment in the file process by terminal equipment, external storage equipment does not exist or is pulled out in reading process, in the situation that network can be used, still can continue to read the residue file content that does not run through by network, can not interrupt the stability and the practicality that take full advantage of and read resource, improve system applies thereby make file read process.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent transformation that utilizes description of the present invention to do, or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. the method for a file reading from external storage equipment is characterized in that, may further comprise the steps:
Terminal equipment obtains identification information and the download address of external storage equipment File, and this identification information is used for the described file of unique identification, and described identification information and download address leave in the terminal equipment;
Terminal equipment reads described external storage equipment File;
Terminal equipment detects external storage equipment and is connected with terminal equipment when unusual, records the current position of reading;
Terminal equipment is according to described identification information and the current position of reading, the current all the elements that read after the position that read described file from network terminal.
As claimed in claim 1 from external storage equipment the method for file reading, it is characterized in that, described terminal equipment obtains the identification information of external storage equipment File and the step of download address also comprises before: the terminal equipment that links to each other with external storage equipment is from the network terminal download and preserve described file to external storage equipment, and the identification information that file is corresponding, download address are kept in the terminal equipment simultaneously.
As claimed in claim 1 from external storage equipment the method for file reading, it is characterized in that, described identification information comprises filename and the download address of described file at least;
Described terminal equipment reads described file and specifically comprises: described terminal equipment is byte-by-byte in order to read described file.
As claimed in claim 1 from external storage equipment the method for file reading, it is characterized in that, described terminal equipment is according to described identification information and the current position of reading, and the current step that reads all the elements after the position that reads described file from network terminal specifically comprises:
Terminal equipment is searched described file according to described identification information in network terminal;
As file as described in existing, then according to the described current position of reading, byte-by-bytely in order read current all bytes that read after the position of described file while downloading from network terminal.
As claimed in claim 4 from external storage equipment the method for file reading, it is characterized in that, the step that described terminal equipment is searched described file according to described identification information in network terminal specifically comprises:
Terminal equipment judges whether to be connected with network terminal;
If not, then prompting user is not connected with network terminal;
If then search described file according to described identification information in network terminal; Such as file as described in not existing, then prompting user does not find file.
6. the system of a file reading from external storage equipment is characterized in that, comprises terminal equipment, external storage equipment and network terminal, and described external storage equipment links to each other with described terminal equipment, and described terminal equipment links to each other with network terminal, wherein,
Described terminal equipment, for identification information and the download address of obtaining the external storage equipment File, this identification information is used for the described file of unique identification, and deposits described identification information and download address; Read described file; Detect external storage equipment and be connected with terminal equipment when unusual, record the current position of reading; According to described identification information and the current position of reading, the current all the elements that read after the position that read described file from network terminal;
Described external storage equipment is used for storing described file, reads for described terminal equipment;
Described network terminal is used for providing described file and identification information and the download address corresponding with this document, and described terminal equipment is downloaded for linking to each other with external storage equipment.
As claimed in claim 6 from external storage equipment the system of file reading, it is characterized in that, described terminal equipment also is used for: when linking to each other with external storage equipment, download and preserve described file to external storage equipment from network terminal, the simultaneously identification information that file is corresponding, download address link is kept in the terminal equipment.
As claimed in claim 7 from external storage equipment the system of file reading, it is characterized in that, described identification information comprises filename and the download address of described file;
Described terminal equipment also is used for, and byte-by-bytely in order reads described file.
As claimed in claim 8 from external storage equipment the system of file reading, it is characterized in that, described terminal equipment also is used for:
Search described file according to described identification information in network terminal; As file as described in existing, then according to the described current position of reading, byte-by-bytely in order read current all bytes that read after the position of described file while downloading from network terminal.
As claimed in claim 9 from external storage equipment the system of file reading, it is characterized in that, described terminal equipment also is used for:
Judge whether described terminal equipment is connected with network terminal; If not, then prompting user is not connected with network terminal; If then search described file according to described identification information in network terminal; When not finding described file, then prompting user does not find file.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310202179.4A CN103312792B (en) | 2013-05-27 | 2013-05-27 | The method and system of file are read from external storage equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310202179.4A CN103312792B (en) | 2013-05-27 | 2013-05-27 | The method and system of file are read from external storage equipment |
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| CN103312792A true CN103312792A (en) | 2013-09-18 |
| CN103312792B CN103312792B (en) | 2017-09-15 |
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| CN201310202179.4A Active CN103312792B (en) | 2013-05-27 | 2013-05-27 | The method and system of file are read from external storage equipment |
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| CN107360191A (en) * | 2017-08-28 | 2017-11-17 | 腾讯科技（深圳）有限公司 | A kind of file acquisition method, device and storage device |
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| CN103312792B (en) | 2017-09-15 |
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