CN106899630B - Thumbnail display method and device for pictures in network disk - Google Patents

Abstract

The present invention provides a method and device for displaying thumbnails of pictures in a network disk. The method is applied to a client installed with a network disk application. The method includes: sending a thumbnail image of a loaded picture to the network disk application. Request; the picture is the picture backed up by the client to the server through the network disk application, and the request includes the identifier of the corresponding picture; judge whether the identifier of the corresponding picture exists in the preset picture record table; The local path corresponding to the identifier of the corresponding image is extracted from the table; the client obtains the local image according to the local path, and displays the thumbnail of the local image in the network disk application. When the same local picture exists in the client as the server, the present invention avoids downloading the picture from the server, obtains the local picture by obtaining the local path of the local picture, and displays the thumbnail of the local picture, saving the time of downloading pictures or pictures from the server. Thumbnail time.

Description

Thumbnail display method and device for pictures in network disk

technical field

The invention relates to the field of Internet technologies, and in particular, to a method and device for displaying thumbnail images of pictures in a network disk.

Background technique

With the popularization of the Internet and computers, people generally have multiple computing devices in their life and work. For example, at least one computer is used at work, another computer is used at home, and one computer is used when going out or at home. Various mobile computing devices such as tablets or smartphones are used for entertainment. In order to uniformly manage files in these computing devices, network storage systems have emerged. A typical network storage system may include a storage server and multiple computing terminals. Each computing terminal communicates with the storage server via the network. The computing terminal can transfer local files to the server for centralized storage. When the user uses other computing terminals, the files stored on the server can be browsed through these computing terminals, and can be downloaded to the computing terminal for local use. When the network speed is getting faster and faster, this network storage method is more and more popular with users.

A network disk is a relatively common network storage system in existence. Network disk, also known as network U disk, network hard disk, is an online storage service launched by Internet companies, providing users with file storage, access, backup, sharing and other file management functions. Users can regard the network disk as a hard disk or U disk placed on the network. No matter whether the user is at home, work or any other place, as long as they can connect to the Internet, they can manage and edit the files in the network disk. There is no need to carry documents with you, and you are not afraid of losing documents. The user can install the network disk application program on the local terminal, and use the network disk application program to connect with the network disk server.

If the user wants to view the thumbnail of the picture in the network disk server, he needs to download the target picture or the thumbnail of the target picture from the network disk server to the network disk client of the local terminal. If the storage space occupied by the target picture or its thumbnail is relatively large Large, the number of target pictures is large, or the network speed of the network disk client that downloads the target picture or its thumbnail from the network disk server to the local terminal is slow, and it takes a long time to download the target picture or its thumbnail from the network disk. Downloading to the network disk client of the local terminal is a waste of time.

SUMMARY OF THE INVENTION

In view of the fact that the above-mentioned method for displaying thumbnails of pictures in the existing network disk is limited by the problem that the target picture or its thumbnail takes up too much storage space and the network speed is too slow, and the download of the target picture or its thumbnail is a waste of time, this paper proposes The invention is in order to provide a thumbnail display method and device for pictures in a network disk that overcomes the above problems or at least partially solves the above problems.

According to one aspect of the present invention, a method for displaying thumbnails of pictures in a network disk is provided, which is applied to a client installed with a network disk application, and the method includes:

Send a request for loading a thumbnail of a picture to the network disk application; the picture is a picture that the client backs up to the server through the network disk application, and the request includes the identifier of the corresponding picture;

Determine whether the identifier of the corresponding picture exists in the preset picture record table;

If there is, extract the local path corresponding to the identifier of the corresponding picture from the picture record table;

The client obtains a local picture according to the local path, and displays a thumbnail of the local picture in the network disk application.

Optionally, identifiers and local paths of related pictures are stored in the picture record table, and the picture record table is periodically updated;

The relevant pictures include pictures backed up by the client to the server through the network disk application, and pictures downloaded by the client from the server through the network disk application.

Optionally, after the client obtains the local picture according to the local path, the method further includes:

Check whether the identifier of the obtained local picture is the same as the identifier in the request;

If the same, the operation of displaying the thumbnail of the local picture in the network disk application is performed.

Optionally, the request further includes at least one of the name, type, backup time and backup party information of the corresponding picture.

Optionally, before judging whether the identifier of the corresponding picture exists in the preset picture record table, the method further includes:

Determine whether the backup party information is the same as the identification information of the client;

If the same, the operation of judging whether the identifier of the corresponding picture exists in the preset picture record table is performed.

Optionally, the identification information of the client includes a client ID and/or a username of the network disk application.

Optionally, after the client obtains the local picture according to the local path, the method further includes:

Determine whether the backup time is after the generation time of the local picture;

If so, the operation of displaying the thumbnail of the local picture in the network disk application is performed.

Optionally, after the client obtains the local picture according to the local path, the method further includes:

Determine whether the type is the same as the type of the local picture;

If the same, the operation of displaying the thumbnail of the local picture in the network disk application is performed.

Optionally, the identifier is one of MD5, SHA1 and CRC32.

According to another aspect of the present invention, a device for displaying thumbnails of pictures in a network disk is provided, which is applied to a client installed with a network disk application, and the device includes:

A request sending module, configured to send a request for loading a thumbnail of a picture to the network disk application; the picture is a picture that the client backs up to the server through the network disk application, and the request includes a corresponding picture identifier;

an identifier judgment module for judging whether the identifier of the corresponding picture exists in the preset picture record table;

The local path extraction module is used to extract the local path corresponding to the identifier of the corresponding picture from the picture recording table if the identifier of the corresponding picture exists in the preset picture recording table;

a local picture acquisition module, configured to acquire a local picture on the client side according to the local path;

A thumbnail display module, configured to display the thumbnail of the local picture in the network disk application.

Optionally, identifiers and local paths of related pictures are stored in the picture record table, and the picture record table is periodically updated;

The relevant pictures include pictures backed up by the client to the server through the network disk application, and pictures downloaded by the client from the server through the network disk application.

Optionally, the device further includes:

an identifier verification module, configured to verify whether the identifier of the acquired local image is the same as the identifier in the request after the local image acquisition module acquires the local image on the client side according to the local path;

If the same, the thumbnail display module displays the thumbnail of the local picture in the network disk application.

Optionally, the request further includes at least one of the name, type, backup time and backup party information of the corresponding picture.

Optionally, the device further includes:

The backup party information judgment module is used to judge whether the backup party information is the same as the identification information of the client before the identifier judgment module judges whether the identifier of the corresponding picture exists in the preset picture record table ;

If they are the same, the identifier judging module judges whether the identifier of the corresponding picture exists in the preset picture record table.

Optionally, the identification information of the client includes a client ID and/or a username of the network disk application.

Optionally, the device further includes:

A backup time judgment module, configured to judge whether the backup time is after the generation time of the local picture after the local picture obtaining module obtains the local picture on the client side according to the local path;

If so, the thumbnail display module displays the thumbnail of the local picture in the network disk application.

Optionally, the device further includes:

a type judgment module, configured to judge whether the type is the same as the type of the local image after the local image acquisition module acquires the local image on the client side according to the local path;

If the same, the thumbnail display module displays the thumbnail of the local picture in the network disk application.

Optionally, the identifier is one of MD5, SHA1 and CRC32.

In the existing method for displaying thumbnails of pictures in a network disk, downloading the pictures or their thumbnails in the network disk server is limited by the conditions such as the storage space occupied by the target pictures or their thumbnails being too large, and the network speed being too slow. Slow and waste of time. In the thumbnail display scheme of pictures in a network disk provided by the present invention, a network disk application program is installed in the client, and can be connected to the server through the network disk application program. Send a request to load the thumbnail of the picture to the network disk application, and the picture is the picture backed up by the client to the server through the network disk application. Determine whether the identifier of the picture in the request exists in the preset picture record table, if so, extract the local path corresponding to the identifier of the picture from the picture record table, obtain the local picture on the client side according to the local path, and Display thumbnails of local images in the network disk application. That is, when there is the same local image in the client as the server, you can avoid downloading the image from the server, but obtain the local path of the local image in the client through the preset image record table in the client, and obtain the local image through the local path. , and display the thumbnail of the local picture in the network disk application, saving the time of downloading the picture or the thumbnail of the picture from the server.

The above description is only an overview of the technical solutions of the present invention, in order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand , the following specific embodiments of the present invention are given.

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 embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be considered limiting of the invention. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

1 is a flowchart of steps of a method for displaying thumbnails of pictures in a network disk according to Embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of an apparatus for displaying thumbnails of pictures in a network disk according to Embodiment 2 of the present invention.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While 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 so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

Example 1

A method for displaying thumbnails of pictures in a network disk provided in Embodiment 1 of the present invention is introduced in detail. The method is applied to a client installed with a network disk application, and the client can be a PC, a smart phone, or a tablet computer, etc. User terminal equipment.

Referring to FIG. 1 , a flowchart of steps of a method for displaying thumbnails of pictures in a network disk according to Embodiment 1 of the present invention is shown.

Step 100: Send a request for loading a thumbnail of a picture to the network disk application.

The picture is a picture backed up by the client to the server through the network disk application, and the request includes an identifier of the corresponding picture. The identifier is at least one of Message Digest Algorithm (MD5), Secure Hash Algorithm (SHA1) and 32-bit Cyclic Redundancy Check (CRC32). The request may also include at least the name, type, backup time, backup party information, and the like of the corresponding picture.

After the step 100 and before the step 102, it can also be judged whether the backup party information is the same as the identification information of the client, in order to judge whether the picture is the picture uploaded by the client to the server. If the same, go to step 102. If the picture is uploaded from the client to the server, the identification information of the client can be used as the backup information of the picture. Wherein, the identification information of the client may include a client ID and/or a username of the network disk application, and the like.

Step 102, it is judged whether the identifier of the corresponding picture exists in the preset picture record table, and if so, step 104 is executed; if not, the process ends.

The picture record table stores identifiers and local paths of related pictures, and the picture record table is updated periodically; wherein, the related pictures include the client backing up to the server through the network disk application program pictures, and pictures downloaded by the client from the server through the network disk application. That is, the picture record table can record the identifier and local path of the picture uploaded by the client to the server, and can also record the identifier and local path of the picture downloaded by the client from the server.

Step 104: Extract the local path corresponding to the identifier of the corresponding picture from the picture record table.

There is a one-to-one correspondence between the identifiers in the picture record table and the local paths. An identifier in the picture record table is determined, that is, a local path corresponding to the identifier is determined accordingly.

In step 106, the client obtains a local picture according to the local path, and displays a thumbnail of the local picture in the network disk application.

In order to increase the accuracy of locally obtained local pictures from the client, after the client obtains the local pictures according to the local path, any one of the following three steps or a combination of any of the steps may be performed:

Step 1. Check whether the obtained identifier of the local image is the same as the identifier in the request; if it is the same, perform the operation of displaying the thumbnail of the local image in the network disk application. That is, it is checked whether the identifier of the local image obtained locally from the client is the same as the identifier in the request, so as to prevent the local image of the client from being modified, and use the modified image as the target image.

Step 2: Determine whether the backup time is after the generation time of the local picture; if so, perform the operation of displaying the thumbnail of the local picture in the network disk application. The backup time in the request can be the system time when the client finishes uploading the local image to the server. The system time may be the common system time of the client and the server. If the backup time is before the generation time of the client's local image, or the backup time is the same as the generation time of the client's local image, it is determined that the client's local image is not the target image.

Step 3: Determine whether the type is the same as the type of the local picture; if it is the same, execute the operation of displaying the thumbnail of the local picture in the network disk application. Common image types include jpg, png, etc. If the type of the image in the request is different from the type of the client's local image, it is determined that the client's local image is not the target image.

If the request also includes the capacity of the image, it can also be judged whether the capacity in the request is the same as the capacity of the client's local image, and if the capacity is the same, it can be further determined that the client's local image is the target image.

To sum up, in the technical solutions in the embodiments of the present invention, a network disk application program is installed in the client, and the network disk application program can be connected to the server. Send a request to load the thumbnail of the picture to the network disk application, and the picture is the picture backed up by the client to the server through the network disk application. Determine whether the identifier of the picture in the request exists in the preset picture record table, if so, extract the local path corresponding to the identifier of the picture from the picture record table, obtain the local picture on the client side according to the local path, and Display thumbnails of local images in the network disk application. That is, when there is the same local image in the client as the server, you can avoid downloading the image from the server, but obtain the local path of the local image in the client through the preset image record table in the client, and obtain the local image through the local path. , and display the thumbnail of the local picture in the network disk application, saving the time of downloading the picture or the thumbnail of the picture from the server.

Embodiment 2

Introduce in detail a thumbnail display device for pictures in a network disk provided by the second embodiment of the present invention, the device is applied to a client installed with a network disk application, and the client can be a PC, a smart phone, or a tablet computer, etc. User terminal equipment.

Referring to FIG. 2 , a schematic structural diagram of an apparatus for displaying thumbnails of pictures in a network disk according to Embodiment 2 of the present invention is shown.

The apparatus may include: a request sending module 20 , an identifier judgment module 22 , a local path extraction module 24 , a local picture acquisition module 26 and a thumbnail display module 28 .

The function of each module and the relationship between each module are described in detail below.

A request sending module 20 is configured to send a request for loading a thumbnail of a picture to the network disk application; the picture is a picture that the client backs up to the server through the network disk application, and the request includes the corresponding The identifier of the image.

The identifier judging module 22 is used for judging whether the identifier of the corresponding picture exists in the preset picture record table. The identifier is one of MD5, SHA1 and CRC32. The picture record table stores identifiers and local paths of related pictures, and the picture record table is updated periodically; wherein, the related pictures include the client backing up to the server through the network disk application program pictures, and pictures downloaded by the client from the server through the network disk application.

The local path extraction module 24 is configured to extract a local path corresponding to the identifier of the corresponding picture from the picture record table if the identifier of the corresponding picture exists in the preset picture record table.

The picture record table stores identifiers and local paths of related pictures, and the picture record table is updated periodically; wherein, the related pictures include the client backing up to the server through the network disk application program pictures, and pictures downloaded by the client from the server through the network disk application.

The local picture obtaining module 26 is configured to obtain a local picture on the client side according to the local path.

The thumbnail display module 28 is configured to display the thumbnail of the local picture in the network disk application.

The device may further include: an identifier verification module for verifying whether the identifier of the acquired local image is the same as the identifier of the acquired local image after the local image acquisition module 26 acquires the local image according to the local path on the client side. The identifiers in the request are the same; if they are the same, the thumbnail display module 28 displays the thumbnail of the local picture in the network disk application.

The request also includes at least one of the name, type, backup time and backup party information of the corresponding picture.

The apparatus may further include: a backup party information judgment module, configured to judge whether the backup party information is before the identifier judgment module 22 judges whether the identifier of the corresponding picture exists in the preset picture record table. It is the same as the identification information of the client; if it is the same, the identifier judging module 22 judges whether the identifier of the corresponding picture exists in the preset picture record table.

The identification information of the client includes the client ID and/or the username of the network disk application.

The device may further include: a backup time judgment module, configured to judge whether the backup time is after the generation time of the local picture after the local picture obtaining module 26 obtains the local picture according to the local path on the client side. ; if so, the thumbnail display module 28 displays the thumbnail of the local picture in the network disk application.

The device may further include: a type judgment module for judging whether the type is the same as the type of the local picture after the local picture acquisition module 26 acquires the local picture according to the local path on the client side; if the same , the thumbnail display module 28 displays the thumbnail of the local picture in the network disk application.

To sum up, in the technical solutions in the embodiments of the present invention, a network disk application program is installed in the client, and the network disk application program can be connected to the server. Send a request to load the thumbnail of the picture to the network disk application, and the picture is the picture backed up by the client to the server through the network disk application. Determine whether the identifier of the picture in the request exists in the preset picture record table, if so, extract the local path corresponding to the identifier of the picture from the picture record table, obtain the local picture on the client side according to the local path, and Display thumbnails of local images in the network disk application. That is, when there is the same local image in the client as the server, you can avoid downloading the image from the server, but obtain the local path of the local image in the client through the preset image record table in the client, and obtain the local image through the local path. , and display the thumbnail of the local picture in the network disk application, saving the time of downloading the picture or the thumbnail of the picture from the server.

The thumbnail display scheme of pictures in the network disk provided here is not inherently related to any specific computer, virtual system or other device. Various general-purpose systems can also be used with teaching based on this. The structure required to construct a system having the aspects of the present invention is apparent from the above description. Furthermore, the present invention is not directed to any particular programming language. It is to be understood that various programming languages may be used to implement the inventions described herein, and that the descriptions of specific languages above are intended to disclose the best mode for carrying out the invention.

In the description provided herein, numerous specific details are set forth. It will be understood, however, 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 an understanding of this description.

Similarly, it is to be understood that in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, figure, or its description. This disclosure, however, should not be construed as reflecting an intention that the invention as claimed 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 will 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. The modules or units or components in the embodiments may be combined into one module or unit or component, and further they may be divided into multiple sub-modules or sub-units or sub-assemblies. All features disclosed in this specification (including accompanying claims, abstract and drawings) and any method so disclosed may be employed in any combination, unless at least some of such features and/or procedures or elements 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 appreciate that although some of the embodiments described herein include certain features, but not others, included in other embodiments, that combinations of features of different embodiments are intended to be within the scope of the invention within and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

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 of the components in the thumbnail display scheme for pictures in the network disk according to the embodiments of the present invention. Full functionality. The present invention can also be implemented as apparatus or apparatus programs (eg, computer programs and computer program products) for performing part or all of the methods described herein. Such a program implementing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such signals may be downloaded from Internet sites, or provided on carrier signals, or in any other form.

It should be noted that the above-described embodiments illustrate rather than limit the invention, and that alternative embodiments may be devised by those skilled in the art 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 different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. do not denote any order. These words can be interpreted as names.

The invention discloses A1, a method for displaying thumbnails of pictures in a network disk, which is applied to a client installed with a network disk application program. The method includes:

Send a request for loading a thumbnail of a picture to the network disk application; the picture is a picture that the client backs up to the server through the network disk application, and the request includes the identifier of the corresponding picture;

Determine whether the identifier of the corresponding picture exists in the preset picture record table;

If there is, extract the local path corresponding to the identifier of the corresponding picture from the picture record table;

The client obtains a local picture according to the local path, and displays a thumbnail of the local picture in the network disk application.

A2. The method according to A1, wherein identifiers and local paths of relevant pictures are stored in the picture record table, and the picture record table is updated periodically;

The relevant pictures include pictures backed up by the client to the server through the network disk application, and pictures downloaded by the client from the server through the network disk application.

A3. The method according to A1, wherein after the client obtains the local picture according to the local path, the method further comprises:

Check whether the identifier of the obtained local picture is the same as the identifier in the request;

If the same, the operation of displaying the thumbnail of the local picture in the network disk application is performed.

A4. The method according to A1, wherein the request further includes at least one of the name, type, backup time and backup party information of the corresponding picture.

A5. The method according to A4, wherein, before judging whether the identifier of the corresponding picture exists in the preset picture record table, the method further comprises:

Determine whether the backup party information is the same as the identification information of the client;

If the same, the operation of judging whether the identifier of the corresponding picture exists in the preset picture record table is performed.

A6. The method according to A5, wherein the identification information of the client includes a client ID and/or a username of the network disk application.

A7. The method according to A4, wherein after the client obtains the local picture according to the local path, the method further includes:

Determine whether the backup time is after the generation time of the local picture;

If so, the operation of displaying the thumbnail of the local picture in the network disk application is performed.

A8. The method according to A4, wherein after the client obtains the local picture according to the local path, the method further includes:

Determine whether the type is the same as the type of the local picture;

If the same, the operation of displaying the thumbnail of the local picture in the network disk application is performed.

A9. The method of A1, wherein the identifier is one of MD5, SHA1 and CRC32.

The invention also discloses B10, a thumbnail display device for pictures in a network disk, which is applied to a client installed with a network disk application program, and the device includes:

A request sending module, configured to send a request for loading a thumbnail of a picture to the network disk application; the picture is a picture that the client backs up to the server through the network disk application, and the request includes a corresponding picture the identifier;

an identifier judgment module for judging whether the identifier of the corresponding picture exists in the preset picture record table;

The local path extraction module is used to extract the local path corresponding to the identifier of the corresponding picture from the picture recording table if the identifier of the corresponding picture exists in the preset picture recording table;

a local picture acquisition module, configured to acquire a local picture on the client side according to the local path;

A thumbnail display module, configured to display the thumbnail of the local picture in the network disk application.

B11. The device according to B10, wherein identifiers and local paths of related pictures are stored in the picture record table, and the picture record table is updated periodically;

The relevant pictures include pictures backed up by the client to the server through the network disk application, and pictures downloaded by the client from the server through the network disk application.

B12. The device according to B10, wherein the device further comprises:

an identifier verification module, configured to verify whether the identifier of the acquired local image is the same as the identifier in the request after the local image acquisition module acquires the local image on the client side according to the local path;

If the same, the thumbnail display module displays the thumbnail of the local picture in the network disk application.

B13. The apparatus according to B10, wherein the request further includes at least one of the name, type, backup time and backup party information of the corresponding picture.

B14. The device according to B13, wherein the device further comprises:

The backup party information judgment module is used to judge whether the backup party information is the same as the identification information of the client before the identifier judgment module judges whether the identifier of the corresponding picture exists in the preset picture record table ;

If they are the same, the identifier judging module judges whether the identifier of the corresponding picture exists in the preset picture record table.

B15. The apparatus according to B14, wherein the identification information of the client includes a client ID and/or a username of the network disk application.

B16. The device according to B13, wherein the device further comprises:

A backup time judgment module, configured to judge whether the backup time is after the generation time of the local picture after the local picture obtaining module obtains the local picture on the client side according to the local path;

If so, the thumbnail display module displays the thumbnail of the local picture in the network disk application.

B17. The device according to B13, wherein the device further comprises:

a type judgment module, configured to judge whether the type is the same as the type of the local image after the local image acquisition module acquires the local image on the client side according to the local path;

If the same, the thumbnail display module displays the thumbnail of the local picture in the network disk application.

B18. The apparatus of B10, wherein the identifier is one of MD5, SHA1 and CRC32.

Claims (12)

1. A method for displaying thumbnails of pictures in a network disk, applied to a client installed with a network disk application, the method comprising: Send a request for loading a thumbnail of a picture to the network disk application; the picture is a picture that the client backs up to the server through the network disk application, and the request includes the identifier of the corresponding picture; Determine whether the identifier of the corresponding picture exists in the preset picture record table; If there is, extract the local path corresponding to the identifier of the corresponding picture from the picture record table; Acquire a local picture on the client side according to the local path, and display a thumbnail of the local picture in the network disk application; Identifiers and local paths of relevant pictures are stored in the picture record table, and the picture record table is periodically updated; Wherein, the relevant pictures include pictures backed up by the client to the server through the network disk application, and pictures downloaded by the client from the server through the network disk application; The request also includes at least one of the name, type, backup time and backup party information of the corresponding picture; Before judging whether the identifier of the corresponding picture exists in the preset picture record table, the method further includes: Determine whether the backup party information is the same as the identification information of the client; If the same, the operation of judging whether the identifier of the corresponding picture exists in the preset picture record table is performed. 2. The method according to claim 1, wherein after the client obtains the local picture according to the local path, the method further comprises: Check whether the identifier of the obtained local picture is the same as the identifier in the request; If the same, the operation of displaying the thumbnail of the local picture in the network disk application is performed. 3. The method according to claim 1, wherein the identification information of the client comprises a client ID and/or a username of the network disk application. 4. The method according to claim 1, wherein after the client obtains the local picture according to the local path, the method further comprises: Determine whether the backup time is after the generation time of the local picture; If so, the operation of displaying the thumbnail of the local picture in the network disk application is performed. 5. The method according to claim 1, wherein after the client obtains the local picture according to the local path, the method further comprises: Determine whether the type is the same as the type of the local picture; If the same, the operation of displaying the thumbnail of the local picture in the network disk application is performed. 6. The method of claim 1, wherein the identifier is one of MD5, SHA1 and CRC32. 7. A device for displaying thumbnails of pictures in a network disk, applied to a client installed with a network disk application program, the device comprising: A request sending module, configured to send a request for loading a thumbnail of a picture to the network disk application; the picture is a picture that the client backs up to the server through the network disk application, and the request includes a corresponding picture the identifier; an identifier judgment module for judging whether the identifier of the corresponding picture exists in the preset picture record table; The local path extraction module is used to extract the local path corresponding to the identifier of the corresponding picture from the picture recording table if the identifier of the corresponding picture exists in the preset picture recording table; a local picture acquisition module, configured to acquire a local picture on the client side according to the local path; a thumbnail display module, used for displaying the thumbnail of the local picture in the network disk application; Identifiers and local paths of relevant pictures are stored in the picture record table, and the picture record table is periodically updated; Wherein, the relevant pictures include pictures backed up by the client to the server through the network disk application, and pictures downloaded by the client from the server through the network disk application; The request also includes at least one of the name, type, backup time and backup party information of the corresponding picture; The device further includes: a backup party information judgment module, configured to judge whether the backup party information is the same as the one before the identifier judgment module judges whether the identifier of the corresponding picture exists in the preset picture record table. The identification information of the client is the same; If they are the same, the identifier judging module judges whether the identifier of the corresponding picture exists in the preset picture record table. 8. The apparatus of claim 7, wherein the apparatus further comprises: an identifier verification module, configured to verify whether the identifier of the acquired local image is the same as the identifier in the request after the local image acquisition module acquires the local image on the client side according to the local path; If the same, the thumbnail display module displays the thumbnail of the local picture in the network disk application. 9. The apparatus according to claim 7, wherein the identification information of the client comprises a client ID and/or a username of the network disk application. 10. The apparatus of claim 7, wherein the apparatus further comprises: A backup time judgment module, configured to judge whether the backup time is after the generation time of the local picture after the local picture obtaining module obtains the local picture on the client side according to the local path; If so, the thumbnail display module displays the thumbnail of the local picture in the network disk application. 11. The apparatus of claim 7, wherein the apparatus further comprises: a type judgment module, configured to judge whether the type is the same as the type of the local image after the local image acquisition module acquires the local image on the client side according to the local path; If the same, the thumbnail display module displays the thumbnail of the local picture in the network disk application. 12. The apparatus of claim 7, wherein the identifier is one of MD5, SHA1, and CRC32.

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