CN103365996B - file management and processing method, device and system - Google Patents

Abstract

The invention discloses a kind of file management and document handling method, device and system；File management method, it includes：File information table is set up, the file information table includes document base information；When file and/or file path change, the record of this document and/or file path in the file information table is correspondingly changed, and by the information record before this document and/or file path change in the file information table；Wherein, for file, the new file after source file and change before change is preserved respectively.According to the information before file and/or the file path change recorded in the file information table of the present invention, the file of random time point can be searched, history file catalogue can again be shown, thus solve user can not consult deleted, covered, Rename file the problem of, can obtain access, recover random time point respective file beneficial effect.

Description

File management and processing method, device and system

technical field

The present invention relates to the field of communication technology, in particular to a file management and processing method, device and system.

Background technique

With the popularization of network applications, cloud storage is becoming more and more popular. When people use cloud storage on a large scale, it is inevitable to perform various operations such as deleting, overwriting, and renaming files. In the existing cloud disk (asynchronous cloud disk) storage solution, after the client (client) user logs in, the client will first request the server (server) for a list of file information, and the server will query the database for the corresponding file information based on the login account information list. After querying the data, return the file information list to the client. The client side creates shortcut icons for each file on the main interface of the cloud disk according to the obtained file information list. And the file name, size and directory structure are created. Therefore, what the cloud disk finally displays to the user is a shortcut to the download address. When the client side adds, deletes, modifies or searches for a file, it will send the file information to the server side, and after the server side receives it, it will immediately modify the information of the file in the file information list.

In the existing technical solutions, because there is no historical file information list, it is impossible to effectively view the historical cloud disk file information and file directory functions. It is also impossible to effectively compare the difference between the current cloud disk file and the file at the specified time, and it is impossible to know which files have been added, deleted, modified, or searched.

In the existing cloud disk storage solution, users can recover files that have been actively deleted through the recycle bin. When the user actively deletes files in the cloud disk, the server will record these file information in the deleted file list information, and the user can restore the file to the original directory through the recovery function of the recycle bin within the specified number of days . When the user modifies a new file and uploads it to overwrite the source file, the server will not only update the file information list, but will also overwrite the original file with the new file in the database on the server, leaving only one copy of the latest file.

Existing technologies can provide recovery of deleted files, but cannot recover overwritten files. When the files in the cloud storage are overwritten due to user misoperation, the historical records cannot be restored. In addition, the existing deleted file recovery is also very simple, and the deleted files cannot be recovered in batches according to the date.

Contents of the invention

In view of the above problems, the present invention is proposed to provide a file management and processing method, device and system that overcome the above problems or at least partially solve the above problems.

According to one aspect of the present invention, a file management method is provided, which includes:

Establish a file information table, the file information table includes file basic information;

When the file and/or file path changes, correspondingly revise the record of the file and/or file path in the file information table, and record the information before the file and/or file path change in the file information table middle;

Wherein, for the files, the source file before the change and the new file after the change are respectively saved.

Optionally, recording information on the file and/or file path before the change in the file information table includes recording one or more of the following information corresponding to the file operation:

File path, file path hash, file path version, file creation time, file size, and file version.

Optionally, the basic file information includes one or more of the following:

Information about file path, file name, file path hash, file hash, file size, file creation time, file path version, file version, and whether the file was deleted.

According to another aspect of the present invention, a file processing method is provided, which includes:

Receive a query request for a file information table, wherein the query request includes at least a query time point A, and the file information table includes basic file information and information before the file and/or file path changes;

According to the file information table and the reference time point A, obtain the file information table corresponding to the reference time point A;

The file information table corresponding to the reference time point A is returned to the requesting party.

Optionally, obtaining the file information table corresponding to the reference time point A further includes:

Add the file information in the file information table whose file creation time is earlier than the reference time point A to the file information table corresponding to the reference time point A.

Optionally, obtaining the file information table corresponding to the reference time point A further includes:

When the file creation time in the file information table is later than the query time point A, if the file version changes and the recorded file creation time before the file and/or file path change is earlier than the query time point A, the file information table will be The recorded file information and/or the file information before the file path change is added to the file information table corresponding to the query time point A.

Optionally, compare the file information table corresponding to the current time point B with the file information table corresponding to the reference time point A, and mark the same files in the two as unchanged; the current time point B does not have but the reference time point A has Mark the file as deleted; mark the file that has both the reference time point A and the current time point B, but the file version is different; mark the file that the review time point B has but the current time point A does not have as newly added .

Optionally, when the one-key recovery message is received, all the files corresponding to the current time point B are restored to the files corresponding to the reference time point A.

Optionally, when the difference recovery message is received, all the files in the file corresponding to the current time point B that have changed relative to the file corresponding to the reference time point A are restored to the files corresponding to the reference time point A.

Optionally, when a specific file restoration message is received, the file at the current time point B selected by the user is restored to the file corresponding to the reference time point A.

According to another aspect of the present invention, a file management device is provided, which includes:

The file information table building module is used to set up a file information table, and the file information table includes file basic information;

The recording module is used to modify the record of the file and/or file path in the file information table accordingly when the file and/or file path changes, and record the information of the file and/or file path before the change in In the document information table;

The saving module is used for saving the source file before the change and the new file after the change respectively.

Optionally, the recording module records the information of the file and/or the file path before the change in the file information table, including one or more of the following information corresponding to the recording of the file operation:

File path, file path hash, file path version, file creation time, file hash, file size, and file version.

Optionally, the basic file information includes one or more of the following:

Information about file path, file name, file path hash, file hash, file size, file creation time, file path version, file version, and whether the file was deleted.

According to another aspect of the present invention, a file processing device is provided, which includes:

A receiving module, configured to receive a query request for a file information table, wherein the query request includes at least a query time point A, and the file information table includes basic file information and information before the file and/or file path changes;

The file information table acquisition module is used to obtain the file information table corresponding to the reference time point A according to the file information table and the reference time point A;

A sending module, configured to return the file information table corresponding to the query time point A to the requester.

Optionally, the file information table acquisition module is also used for:

Add the file information in the file information table whose file creation time is earlier than the reference time point A to the file information table corresponding to the reference time point A.

Optionally, the file information table acquisition module is also used for:

When the file creation time in the file information table is later than the query time point A, if the file version changes and the recorded file creation time before the file and/or file path change is earlier than the query time point A, the file information table will be The recorded file information and/or the file information before the file path change is added to the file information table corresponding to the query time point A.

Optionally, the file information table acquisition module is also used for:

Compare the file information table corresponding to the current time point B with the file information table corresponding to the reference time point A, and mark the same files in the two as unchanged; mark the files that the current time point B does not have but the reference time point A has as Deleted; mark the files that have both the reference time point A and the current time point B but have different file versions as modified; mark the files that have the reference time point B but not the current time point A as newly added.

Optionally, the file processing device further includes:

The one-key recovery module is configured to restore all the files corresponding to the current time point B to the files corresponding to the reference time point A when the one-key recovery message is received.

Optionally, the file processing device further includes:

The difference recovery module is configured to restore all files that have changed from the file corresponding to the reference time point A among the files corresponding to the current time point B to the files corresponding to the reference time point A when receiving the difference recovery message.

Optionally, the file processing device further includes:

The specific file restoration module is configured to restore the file at the current time point B selected by the user to the file corresponding to the reference time point A when the specific file restoration message is received.

According to another aspect of the present invention, a file processing system is provided, which includes a terminal, and the above-mentioned file management device and file processing device.

According to the files recorded in the file information table of the present invention and/or the information before the file path changes, files at any point in time can be searched, and the historical file directory can be re-displayed, thereby solving the problem that users cannot consult deleted and overwritten files. 1. For the problem of renaming files, the beneficial effect of consulting and restoring the corresponding files at any point in time can be obtained.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the specific embodiments of the present invention are enumerated below.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same parts. In the attached picture:

Fig. 1 shows a flow chart of a file management method according to an embodiment of the present invention;

FIG. 2 shows a flowchart of a file processing method according to an embodiment of the present invention;

FIG. 3 shows a flow chart of obtaining a file information table corresponding to a reference time point A according to an embodiment of the present invention;

Fig. 4 shows a schematic structural diagram of a file management device according to an embodiment of the present invention;

Fig. 5 shows a schematic structural diagram of a file processing device according to an embodiment of the present invention;

Fig. 6 shows a schematic structural diagram of a file processing device according to another embodiment of the present invention;

FIG. 7 shows a schematic structural diagram of a file processing system according to an embodiment of the present invention;

FIG. 8 shows a schematic diagram of a user creating a new cloud disk according to an embodiment of the present invention;

Fig. 9 shows a schematic diagram of a user modifying a file in a cloud disk for the first time according to an embodiment of the present invention;

Fig. 10 shows a schematic diagram after the user modifies the files in the cloud disk for the second time according to an embodiment of the present invention.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

As shown in Figure 1, a file management method according to an embodiment of the present invention is provided, which includes:

Step S101, establishing a file information table, which includes basic file information;

Step S102, when the file and/or file path changes, correspondingly modify the record of the file and/or file path in the file information table, and record the information of the file and/or file path before the change in the in the file information table;

Step S103, wherein, for the files, the original file before the change and the new file after the change are respectively saved.

As can be seen from the above, according to the technical solution of an embodiment of the present invention, firstly, a file information table is established, and the file information table includes basic file information. Because the user may modify, delete, change the save path, change the file name and other operations on the file, this will cause the file or the file path to change. In this case, when the file and/or file path changes, the record of the file and/or file path in the file information table is modified accordingly, and the information before the file and/or file path change is recorded in the file information table. In the above process, for the files, the source file before the change and the new file after the change are saved separately, which is convenient for later recovery and other operations. When looking for files at any point in time, the historical file directory can be re-displayed according to the files recorded in the file information table and/or the information before the file path changes, thus solving the problem that users cannot view deleted, overwritten, and renamed files file problem.

Among them, the basic information of the file can include:

File path (path): refers to the directory location of the file created by the client (client), for example: there is a Taishan folder under the picture folder in my cloud disk, which can be recorded as: \picture\Taishan. If it is a specific file, for example, the picture of "Five Sacred Mountains.png" is stored in the Taishan folder, and the storage format is as follows: \Pictures\Taishan\Five Sacred Mountains.png.

File name (file_name): refers to the name of the folder and file, for example: the file name corresponding to "\Picture\Taishan" is "Taishan"; Five Sacred Mountains.png".

File path hash value (pash_hash): It is a hash value calculated according to the file path, mainly to judge the uniqueness of the file path. When a new folder is created and a new file is uploaded, the hash value of the file path will be calculated. For example, "\Picture\Taishan" will calculate a hsah value, and "\Picture\Taishan\Five Sacred Unique.png" will also be calculated A hsah value.

File hash value (file_hash): It is the hash value calculated according to the file, only the file is calculated, and the folder does not calculate the hash value. The main function is that the client downloads the file from the server according to the file hash. The difference between the file hash and the file path hash is that after the file is renamed, the file path hash will change, but the file hash will not change. If the file only modifies the content, the file path hash will not change, but the file hash will change.

File size (file_size): Record the size of the file, and the folder does not record the size value.

File creation time (file_create): records the creation and modification time of the file, mainly including the file path and file modification, subject to the server time.

File path version (path_ver): refers to how many times the same file path has been modified; the version information is added every time a file path is modified.

File version (file_ver):

It refers to how many times the same file has been modified; the version information is added every time a file is modified.

Whether the file has been deleted (deleted): refers to whether the file has been deleted by the user; 0 indicates that it has not been deleted, and 1 indicates that it has been deleted.

When a user uploads (adds), modifies or deletes a file, and the file and/or file path changes, the changed information is recorded in the file information table, and the file and/or file path before the change Information is also recorded in the file information table. The information before the file and/or file path changes includes recording one or more of the following items: the corresponding file name before the file operation, the file path hash value, the file creation time, the file version, the file hash before the file operation Hash value, file creation time, and file version.

Specifically, incremental path backup information and/or incremental file backup information may be added to the file information table, and corresponding information before the file operation is recorded in the incremental path backup information and/or incremental file backup information.

Path incremental backup information (path_back): When the file path is modified, the modified time, version, path hash and/or file name will be recorded; each path modification will add a new data item to the file information table; The format is file_name+path_hash+file_create+path_ver, including: the corresponding file name before file operation, file path hash value, file creation time and file version.

File incremental backup information (file_back): When a file is modified, it will record the modified time, version and/or file hash; each time a file is modified, a new record data item will be added to the file information table; the format is file_back +file_create+file_ver, including: file hash value before file operation, file creation time and file version.

For the preservation of source files, adjustments can be made according to user needs, server pressure, etc. For example, set historical files not to be deleted within one month, and files within one month of incremental update of the file information table not to be deleted, so that one can be effectively saved Historical file information within a month. Considering the server pressure, historical files (source files) can also be saved according to the file type, video files do not save historical information, text files save historical information, etc.

An example of a file information table is given below,

For example, create a directory picture on the user's cloud disk, upload the document test.doc, and create a file information table as shown in Table 1.

Table 1

The user later renamed "Pictures" to "My Pictures", updated the "test.doc" document, ie: the file path of "Picture", the file name, the file path hash, the file path, the file creation time and the file Path version changed; file hash, file size, file creation time, file version of "test.doc" document changed. Therefore, data items Path_back1 and File_back1 are added to the file information table to record the file path and the information before the file changes, respectively, as shown in Table 2.

Table 2

As shown in Figure 2, a file processing method according to an embodiment of the present invention is provided, which includes:

Step S201, receiving a query request for a file information table, wherein the query request includes at least a query time point A, and the file information table includes basic file information and information before file and/or file path changes;

In this step, the user opens the file management system on the client (client), and selects a specific date and time A (review time point A) according to the calendar provided; after selecting the time, the client will send a request to the server (server), Request the file information table at time point A. The file information table is created through the above embodiments, and includes basic file information and information before the file and/or file path is changed.

Step S202, according to the file information table and the reference time point A, obtain the file information table corresponding to the reference time point A;

In this step, the file information table corresponding to the query time point A is obtained, which specifically includes the following steps:

Step S301, open the server-side file information table;

Step S302, judging whether the file creation time in the file information table is later than time point A, if yes, go to step S303, if not, go to step S306;

Step S303, further judging whether the file version in the file information table has changed, if yes, then go to step S304, if not, then go to step S307;

Step S304, further judge whether the creation time of the file recorded in the file information table and/or the file path before the file path change is later than the reference time point A, if yes, go to step S305, if not, go to step S307;

Step S305, from the file and/or information before the file path change recorded in the file information table, take out the backup information closest to the reference time point A, and then go to step S306;

Step S306, adding the file information obtained in the above steps to the file information table corresponding to the query time point A.

Step S307, indicating that the file information is not needed.

For each record in the file information table, repeat steps S302-307, and finally obtain the file information table corresponding to the query time point A.

Step S203, returning the file information table corresponding to the query time point A to the requesting party.

After the client receives the file backup list (the file information table corresponding to the query time point A), it will re-display the file directory structure of the time point A to the cloud disk client. This display is a temporary display. When the file management system is closed, The cloud disk file at the current point in time will be restored.

After displaying the file at time point A to the user, the client compares the file information table corresponding to the current time point B with the file information table corresponding to the query time point A, and marks the same file as unchanged; Mark the files that do not exist at point B but that exist at point A at the time of review as deleted; mark the files that exist at both point A at time point A and at point B at the current time but have different file versions as modified; Files that point A does not have are marked as new additions.

According to the difference between the cloud disk files at time point A and the current time point B, the user can restore all the files in the cloud disk to the files at the time A node with one click, and can also perform differential recovery to restore the files with differences in the cloud disk. Files (mainly deleted and modified) are restored to the state at point A at time A; single file restoration is also possible, the user selects a file and directly restores to the original version and directory location. details as follows:

When receiving the one-click restore message sent by the terminal, restore all the files corresponding to the current time point B to the files corresponding to the query time point A. The one-key restore message in this embodiment refers to a message sent by the user to the server through the terminal to request to restore all the files corresponding to the current time point B to the files corresponding to the reference time point A.

When the difference recovery message sent by the terminal is received, all the files in the file corresponding to the current time point B that have changed relative to the file corresponding to the reference time point A are restored to the files corresponding to the reference time point A. The difference recovery message in this embodiment refers to the request sent by the user to the server through the terminal to restore all files that have changed from the file corresponding to the reference time point A in the file corresponding to the current time point B to that corresponding to the reference time point A message of the file.

When receiving a specific file restoration message sent by the terminal, the file at the current time point B selected by the user is restored to the file corresponding to the time point A at the time of viewing. The specific file restoration message in this embodiment refers to a message sent by the user to the server through the terminal to restore the file selected by the user at the current time point B to the file corresponding to the time point A when the user consulted it.

In addition, as shown in FIG. 4, a file management device for implementing the above method according to an embodiment of the present invention is provided, which includes:

The file information table building module 401 is used to set up a file information table, and the file information table includes file basic information;

The recording module 402 is configured to modify the record of the file and/or file path in the file information table accordingly when the file and/or file path changes, and record the information of the file and/or file path before the change In said document information form;

The saving module 403 is configured to save the source file before the change and the new file after the change respectively.

The recording module 402 records the information of the file and/or the file path before the change in the file information table, including recording one or more of the following items:

The corresponding file name, file path hash value, file creation time, file version, file hash value before file operation, file creation time, and file version before the file operation.

Basic file information includes one or more of the following:

Information about file path, file name, file path hash, file hash, file size, file creation time, file path version, file version, and whether the file was deleted.

In addition, as shown in FIG. 5, an embodiment of the present invention also relates to a file processing device for implementing the above method, which includes:

The receiving module 501 is configured to receive a query request for a file information table, wherein the query request includes at least a query time point A, and the file information table includes basic file information and information before file and/or file path changes;

The file information table acquisition module 502 is used to obtain the file information table corresponding to the reference time point A according to the file information table and the reference time point A;

The sending module 503 is configured to return the file information table corresponding to the query time point A to the requesting party.

Wherein, the file information table acquisition module 502 is also used for:

Add the file information in the file information table whose file creation time is earlier than the reference time point A to the file information table corresponding to the reference time point A;

When the file creation time in the file information table is later than the query time point A, if the file version changes and the recorded file creation time before the file and/or file path change is earlier than the query time point A, the file information table will be The recorded file information and/or the file information before the file path change is added to the file information table corresponding to the query time point A;

Compare the file information table corresponding to the current time point B with the file information table corresponding to the reference time point A, and mark the same files in the two as unchanged; mark the files that the current time point B does not have but the reference time point A has as Deleted; mark the files that have both the reference time point A and the current time point B but have different file versions as modified; mark the files that have the reference time point B but not the current time point A as newly added.

In order to achieve a better technical effect, as shown in Figure 6, in addition to the receiving module 601, the file information table acquisition module 602 and the sending module 603, the file processing device of the embodiment of the present invention also includes:

The one-key recovery module 604 is configured to restore all the files corresponding to the current time point B to the files corresponding to the query time point A when the one-key recovery message is received.

The difference recovery module 605 is configured to restore all files in the files corresponding to the current time point B that have changed relative to the file corresponding to the reference time point A to the files corresponding to the reference time point A when receiving the difference recovery message.

The specific file restoration module 606 is configured to restore the file at the current time point B selected by the user to the file corresponding to the reference time point A when the specific file restoration message is received.

According to the description of the above embodiment, those skilled in the art can also understand that the embodiment of the present invention may also relate to a file processing system, including the terminal 701, and the file management device 702 and the file processing device 703 involved in the above embodiment. Since the previous embodiments have described the file management device and the file processing device in detail, this embodiment will not describe them in detail.

In the following, the technical solution of the present invention is described more clearly through examples.

1. At 2013.04.01 12:00:00, the user created a new cloud disk, created a directory, and uploaded pictures and documents. As shown in Figure 8, the user has created three folders of pictures, documents, and music, and uploaded five files: blue.jpg, test.doc, learning.doc, research and development.doc, and product.doc.

Create a file information table on the server side, as shown in Table 3

table 3

2. The user renamed "\Pictures" to "My Pictures" at 2013.04.05 12:00:00; deleted the "\Documents" folder at 2013.04.05 12:01:00; 2013.04.05 12:03: 00 updated "\Test.doc"; 2013.04.05 12:05:00 newly uploaded "\Learning.xml" under the "\Music" directory. The cloud disk modified by the user is shown in Figure 9, including two folders of my picture and music, and five files of blue.jpg, test.doc, learning.doc, research and development.doc, and product.doc; among them, The music folder also includes "\learning.xml".

The information recorded in the file information table on the server side is shown in Table 4: the bold part indicates that the file information has changed. Among them, path_back and file_back record the information before the change.

Table 4

3. The user renamed "\Picture" to "My Picture 2" at 2013.04.10 13:00:00; deleted the "product.doc" document at 2013.04.10 13:01:00; 2013.04.10 13:03: 00 updated "\test.doc"; 2013.04.10 13:05:00 updated "\music\learning.xml"; 2013.04.10 13:08:00 created a new folder "\test"; 2013.04.10 13: 10:00 Created a new "work.doc" document. The cloud disk modified by the user is shown in Figure 10, including three folders of my picture 2, music, and test, and five files of blue.jpg, test.doc, learning.doc, research and development.doc, and work.doc ; Among them, the music folder also includes "\learning.xml".

The information recorded by the server in the file information table is shown in Table 5. The bold font part indicates that the file information has changed; where path_back and file_back record information before the change.

table 5

In Table 5, since the user performed a delete operation on the document "product.doc", its file size has not changed. Therefore, when recording the information before the file change, the file size may not be recorded; of course, it can also be recorded.

4. When the user logs in on 2013.04.14 and views the cloud disk files, the client end first obtains the file information table from the server end, and the server end calculates the latest file information table and sends it to the client. The main thing is to get the latest file list and exclude deleted files, so "documentation" and "product.doc" will be excluded. The file information table on the client side is shown in Table 6 below. The client will create a shortcut based on the file information table and display it in the main interface of the user's cloud disk.

Table 6

5 When the user logs in on 2013.04.14 and checks the historical cloud disk files at 2013.04.07 12:00:00, the client side first obtains the file information table from the server side, and the server side will calculate the latest file information table and send it to the client ,details as follows:

1), first compare 2013.04.07 12:00:00 with file_create, when file_create is later than 2013.04.07 12:00:00, and there is no other version, it will be excluded, so the "test" directory and "work. doc" files are excluded.

2) All files whose file_create is earlier than 2013.04.07 12:00:00 are reserved (excluding deleted files), so the "music" directory is retained, and the "document" directory needs to be deleted. Blue.jpg, learning.doc, research and development .doc is reserved.

3) Next, compare path_back with the time of 2013.04.07 12:00:00, the "My Picture 2" directory needs to roll back to the "My Picture" directory, and roll back the information of version 2.

4) Finally, compare file_back and 2013.04.07 12:00:00, "Test.doc" needs to roll back to version 2; the deleted "Product.doc" needs to be restored to version 1, and the status is not deleted; "\Music\Learning.xml" needs to fall back to version 1.

5) According to the above information, a new file information table (table 7) is generated and sent to the client. After the client receives the file information table, it will temporarily display it to the client in the cloud disk history according to the file information table.

Table 7

7. When the historical information is displayed in front of the user, the user can perform single file, differential file, or one-key recovery. When the user checks the historical information of 2013.04.07 12:00:00, the difference files will be marked. For example, the user can select "\Music\Learning.xml" to restore a single file, and all the information of the file will return to the version 1 information.

8. Differential file recovery, for example, when the user selects differential file recovery, it will compare the current time file information table (Table 6) with the file information table (Table 7) at 2013.04.07 12:00:00, where there are differences, one-time recover. So "Test.doc" rolls back to version 2; the deleted "Product.doc" restores to version 1; "\Music\Learning.xml" rolls back to version 1.

The algorithms and displays presented herein are not inherently related to any particular computer, virtual system, or other device. Various generic systems can also be used with the teachings based on this. The structure required to construct such a system is apparent from the above description. Furthermore, the present invention is not specific to any particular programming language. It should be understood that various programming languages can be used to implement the content of the present invention described herein, and the above description of specific languages is for disclosing the best mode of the present invention.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, in order to streamline this disclosure and to facilitate an understanding of one or more of the various inventive aspects, various features of the invention are sometimes grouped together in a single embodiment, figure, or its description. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art can understand that the modules in the device in the embodiment can be adaptively changed and arranged in one or more devices different from the embodiment. Modules or units or components in the embodiments may be combined into one module or unit or component, and furthermore may be divided into a plurality of sub-modules or sub-units or sub-assemblies. All features disclosed in this specification (including accompanying claims, abstract and drawings) and any method or method so disclosed may be used in any combination, except that at least some of such features and/or processes or units are mutually exclusive. All processes or units of equipment are combined. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will understand that although some embodiments described herein include some features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention. and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

The various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all of some or all components of the file management device and/or file processing device according to the embodiment of the present invention. Full functionality. The present invention can also be implemented as an apparatus or an apparatus program (for example, a computer program and a computer program product) for performing a part or all of the methods described herein. Such a program for realizing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such a signal may be downloaded from an Internet site, or provided on a carrier signal, or provided in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names.

The present invention also discloses A1. A file management method, which includes:

Establish a file information table, the file information table includes file basic information;

When the file and/or file path changes, correspondingly revise the record of the file and/or file path in the file information table, and record the information before the file and/or file path change in the file information table middle;

Wherein, for the files, the source file before the change and the new file after the change are respectively saved.

A2. The method as described in A1, wherein recording the file and/or information before the file path change in the file information table includes recording one or more of the following information corresponding to the file operation:

File path, file path hash, file path version, file creation time, file hash, file size, and file version.

A3. The method described in A1 or A2, wherein the basic file information includes one or more of the following:

Information about file path, file name, file path hash, file hash, file size, file creation time, file path version, file version, and whether the file was deleted.

The invention discloses B4, a file processing method, which includes:

Receive a query request for a file information table, wherein the query request includes at least a query time point A, and the file information table includes basic file information and information before the file and/or file path changes;

According to the file information table and the reference time point A, obtain the file information table corresponding to the reference time point A;

The file information table corresponding to the reference time point A is returned to the requesting party.

B5. The method as described in B4, wherein obtaining the file information table corresponding to the reference time point A further includes:

Add the file information in the file information table whose file creation time is earlier than the reference time point A to the file information table corresponding to the reference time point A.

B6. The method as described in B4 or B5, wherein obtaining the file information table corresponding to the reference time point A further includes:

When the file creation time in the file information table is later than the query time point A, if the file version changes and the recorded file creation time before the file and/or file path change is earlier than the query time point A, the file information table will be The recorded file information and/or the file information before the file path change is added to the file information table corresponding to the query time point A.

B7. The method as described in B6, wherein, comparing the file information table corresponding to the current time point B with the file information table corresponding to the reference time point A, the same files in the two are marked as unchanged; the current time point B is not changed Mark the files that exist but exist at the reference time point A as deleted; mark the files that exist at both the review time point A and the current time point B but have different file versions as modified; mark the files that exist at the review time point B but not at the current time point A Files that have are marked as new additions.

B8. The method as described in B7, wherein, when the one-click recovery message is received, all the files corresponding to the current time point B are restored to the files corresponding to the reference time point A.

B9. The method as described in B7, wherein, when receiving the difference recovery message, all files that have changed in the file corresponding to the current time point B relative to the file corresponding to the reference time point A are restored to the files corresponding to the reference time point A. corresponding files.

B10. The method as described in B7, wherein, when a specific file restoration message is received, the file at the current time point B selected by the user is restored to the file corresponding to the time point A when the user is consulted.

The present invention also discloses C11, a file management device, which includes:

The file information table building module is used to set up a file information table, and the file information table includes file basic information;

The recording module is used to modify the record of the file and/or file path in the file information table accordingly when the file and/or file path changes, and record the information of the file and/or file path before the change in In the document information table;

The saving module is used for saving the source file before the change and the new file after the change respectively.

C12. The device according to C11, wherein the recording module records the information of the file and/or the file path before the change in the file information table, including one of the following items of information corresponding to the recording file operation or more:

File path, file path hash, file path version, file creation time, file hash, file size, and file version.

C13. The device as described in C11 or C12, wherein the basic file information includes one or more of the following items:

Information about file path, file name, file path hash, file hash, file size, file creation time, file path version, file version, and whether the file was deleted.

This paper also discloses D14, a file processing device, which includes:

A receiving module, configured to receive a query request for a file information table, wherein the query request includes at least a query time point A, and the file information table includes basic file information and information before the file and/or file path changes;

The file information table acquisition module is used to obtain the file information table corresponding to the reference time point A according to the file information table and the reference time point A;

A sending module, configured to return the file information table corresponding to the query time point A to the requester.

D15. The device as described in D14, wherein the file information table acquisition module is also used for:

Add the file information in the file information table whose file creation time is earlier than the reference time point A to the file information table corresponding to the reference time point A.

D16. The device as described in D14 or D15, wherein the file information table acquisition module is also used for:

When the file creation time in the file information table is later than the query time point A, if the file version changes and the recorded file creation time before the file and/or file path change is earlier than the query time point A, the file information table will be The recorded file information and/or the file information before the file path change is added to the file information table corresponding to the query time point A.

D17. The device as described in D14, wherein the file information table acquisition module is also used for:

Compare the file information table corresponding to the current time point B with the file information table corresponding to the reference time point A, and mark the same files in the two as unchanged; mark the files that the current time point B does not have but the reference time point A has as Deleted; mark the files that have both the reference time point A and the current time point B but have different file versions as modified; mark the files that have the reference time point B but not the current time point A as newly added.

D18. The device as described in D17, wherein the file processing device further includes:

The one-key recovery module is configured to restore all the files corresponding to the current time point B to the files corresponding to the reference time point A when the one-key recovery message is received.

D19. The device as described in D17, wherein the file processing device further includes:

The difference recovery module is configured to restore all files that have changed from the file corresponding to the reference time point A among the files corresponding to the current time point B to the files corresponding to the reference time point A when receiving the difference recovery message.

D20. The device as described in D17, wherein the file processing device further includes:

The specific file restoration module is configured to restore the file at the current time point B selected by the user to the file corresponding to the reference time point A when the specific file restoration message is received.

The present invention also discloses E21, a file processing system, which includes a terminal, the file management device described in any one of C11-C13, and the file processing device described in any one of D14-D20.

Claims (19)

1. A file management method, based on a cloud server, comprising: Establish a file information table, the file information table includes file basic information; When the file and/or file path changes, correspondingly revise the record of the file and/or file path in the file information table, and record the information before the file and/or file path change in the file information table In; wherein, the file path includes the directory location of the file created by the client; Wherein, for the file, the source file before the change and the new file after the change are saved separately; Record the information of the file and/or the file path before the change in the file information table, including one or more of the following information corresponding to the file operation before recording: file path, file path hash value, file path version, file creation time, file hash, file size, and file version. 2. The method according to claim 1, wherein the basic file information includes one or more of the following: Information about file path, file name, file path hash, file hash, file size, file creation time, file path version, file version, and whether the file was deleted. 3. A file processing method, based on a cloud server, comprising: Receive a query request for a file information table, wherein the query request includes at least a query time point A, and the file information table includes basic file information and information before the file and/or file path changes; wherein the file path includes The directory location of the file created by the client; According to the file information table and the reference time point A, obtain the file information table corresponding to the reference time point A; Return the file information table corresponding to the reference time point A to the requesting party; According to the file information table corresponding to the current time point B and the file information table corresponding to the reference time point A, at least one of the following file recovery messages is received: a one-key recovery message, a difference recovery message, and a specific file recovery message. 4. The method according to claim 3, wherein obtaining the file information table corresponding to the reference time point A further comprises: Add the file information in the file information table whose file creation time is earlier than the reference time point A to the file information table corresponding to the reference time point A. 5. The method according to claim 3 or 4, wherein obtaining the file information table corresponding to the reference time point A further comprises: When the file creation time in the file information table is later than the query time point A, if the file version changes and the recorded file creation time before the file and/or file path change is earlier than the query time point A, the file information table will be The recorded file information and/or the file information before the file path change is added to the file information table corresponding to the query time point A. 6. The method according to claim 5, wherein, comparing the file information table corresponding to the current time point B with the file information table corresponding to the reference time point A, the same files in the two are marked as unchanged; the current time point Mark the files that B does not have but have the reference time point A as deleted; mark the files that have both the reference time point A and the current time point B but have different file versions as modified; mark the files that the review time point B has but the current time point Files that A does not have are marked as new additions. 7. The method according to claim 6, wherein, when the one-click restore message is received, all files corresponding to the current time point B are restored to the files corresponding to the reference time point A. 8. The method according to claim 6, wherein, when a difference recovery message is received, all files that have changed in the file corresponding to the current time point B relative to the file corresponding to the reference time point A are restored to the reference time point The file corresponding to A. 9. The method according to claim 6, wherein, when the specific file recovery message is received, the file at the current time point B selected by the user is restored to the file corresponding to the reference time point A. 10. A file management device, based on a cloud server, comprising: The file information table building module is used to set up a file information table, and the file information table includes file basic information; The recording module is used to modify the record of the file and/or file path in the file information table accordingly when the file and/or file path changes, and record the information of the file and/or file path before the change in In the file information table; wherein, the file path includes the directory location of the file created by the client; A saving module is used to save the source file before the change and the new file after the change respectively; The recording module records the information of the file and/or the file path before the change in the file information table, including one or more of the following information corresponding to the file operation before recording: file path, file path hash value, file path version, file creation time, file hash, file size, and file version. 11. The device according to claim 10, wherein the basic file information includes one or more of the following: Information about file path, file name, file path hash, file hash, file size, file creation time, file path version, file version, and whether the file was deleted. 12. A file processing device, based on a cloud server, comprising: A receiving module, configured to receive a query request for a file information table, wherein the query request includes at least a query time point A, and the file information table includes basic file information and information before the file and/or file path changes; wherein, The file path includes the directory location of the file created by the client; The file information table acquisition module is used to obtain the file information table corresponding to the reference time point A according to the file information table and the reference time point A; A sending module, configured to return the file information table corresponding to the query time point A to the requester; The receiving module is also configured to receive at least one of the following recovery messages for files according to the file information table corresponding to the current time point B and the file information table corresponding to the reference time point A: one-key recovery message, difference recovery message, specific File recovery message. 13. The device according to claim 12, wherein the file information table acquisition module is also used for: Add the file information in the file information table whose file creation time is earlier than the reference time point A to the file information table corresponding to the reference time point A. 14. The device according to claim 12 or 13, wherein the file information table acquisition module is also used for: When the file creation time in the file information table is later than the query time point A, if the file version changes and the recorded file creation time before the file and/or file path change is earlier than the query time point A, the file information table will be The recorded file information and/or the file information before the file path change is added to the file information table corresponding to the query time point A. 15. The device according to claim 12, wherein the file information table acquisition module is also used for: Compare the file information table corresponding to the current time point B with the file information table corresponding to the reference time point A, and mark the same files in the two as unchanged; mark the files that the current time point B does not have but the reference time point A has as Deleted; mark the files that have both the reference time point A and the current time point B but have different file versions as modified; mark the files that have the reference time point B but not the current time point A as newly added. 16. The device according to claim 15, wherein the file processing device further comprises: The one-key recovery module is configured to restore all the files corresponding to the current time point B to the files corresponding to the reference time point A when the one-key recovery message is received. 17. The device according to claim 15, wherein the file processing device further comprises: The difference recovery module is configured to restore all files that have changed from the file corresponding to the reference time point A among the files corresponding to the current time point B to the files corresponding to the reference time point A when receiving the difference recovery message. 18. The device according to claim 15, wherein the file processing device further comprises: The specific file restoration module is configured to restore the file at the current time point B selected by the user to the file corresponding to the reference time point A when the specific file restoration message is received. 19. A file processing system, comprising a terminal, the file management device according to any one of claims 10-11, and the file processing device according to any one of claims 12-18.