CN103793248B - Method and device for upgrading application program - Google Patents

Abstract

The invention discloses a method and device for upgrading an application program, wherein the method includes: obtaining the installation package of the application program to be upgraded; extracting specified component object information from the installation package; The object information determines the specified component object in the application program; the specified component object is loaded by using the specified component object information. The invention is used to solve the problem of cumbersome program upgrading process, can complete the upgrading of the application program without the user performing the upgrading operation, can quickly complete the upgrading, and improves user experience.

Description

A method and device for updating an application program

technical field

The present invention relates to the technical field of data processing, in particular to a method for upgrading an application program and a device for upgrading an application program.

Background technique

In the specific implementation, after a period of use, the application program will gradually show some loopholes and defects of its own. These loopholes and defects cannot meet the requirements of the growing application program. The loopholes and defects of the program itself are repaired and corrected, so new application installation packages are constantly generated to meet the requirements of application upgrades.

When the user wants to update the application program, he needs to download the installation package of the application program and put it in the specified location, and then use the installation package. Usually, a system prompt box will pop up, and the user can perform corresponding operations according to the prompt to upgrade the application program. In addition, because the upgrade of the application program is a continuous process, there will be new installation packages constantly, and users need to update continuously. For some users, the upgrade process is cumbersome and takes a certain amount of time. The experience is poor.

Contents of the invention

In view of the above problems, the present invention is proposed to provide a method for upgrading an application program and an apparatus for upgrading an application program, which overcome the above problems or at least partially solve the above problems.

According to one aspect of the present invention, a method for updating an application program is provided, including:

Obtain the installation package of the application program to be upgraded;

Extracting specified component object information from the installation package;

Determine the specified component object in the application according to the specified component object information;

The specified component object is loaded by using the specified component object information.

Optionally, the specified component object information includes the directory address of the current class loader, and the specified component object in the application program includes the class loader;

The step of loading the specified component object by using the specified component object information includes:

Obtaining the directory address of the original class loader in the application by using the reflection object in the application;

Change the directory address of the original class loader to the directory address of the current class loader.

The class loader is loaded from the directory address of the current class loader.

Optionally, the specified component object information includes a directory address of the current application object, and the specified component object in the application program includes an application object;

The step of loading the specified component object by using the specified component object information includes:

Obtaining the directory address of the original application object in the application by using the reflection object in the application;

Modify the directory address of the original application object to the directory address of the current application object.

The application object is loaded from the directory address of the current application object.

Optionally, the specified component object information includes a directory address of current resource data, and the specified component object in the application program includes resource data;

The step of loading the specified component object by using the specified component object information includes:

Obtaining the directory address of the original resource data in the application program by using the reflection object in the application program;

Change the directory address of the original resource data to the directory address of the current resource data.

The resource data is loaded from the directory address of the current resource data.

Optionally, the specified component object information includes the directory address of the current package manager, and the specified component object in the application program includes the package manager;

The step of loading the specified component object by using the specified component object information includes:

Obtaining the directory address of the original package manager in the application by using the reflection object in the application;

Change the directory address of the original package manager to the directory address of the current package manager.

The package manager is loaded from the directory address of the current package manager.

According to another aspect of the present invention, a device for updating application programs is provided, including:

An acquisition module, adapted to acquire the installation package of the application program to be upgraded;

An extraction module, adapted to extract specified component object information from the installation package;

A determining module, adapted to determine the specified component object in the application according to the specified component object information;

A loading module, adapted to load the specified component object by using the specified component object information.

Optionally, the specified component object information includes the directory address of the current class loader, and the specified component object in the application program includes the class loader;

The loading modules include:

The first address obtaining submodule is adapted to obtain the directory address of the original class loader in the application program by using the reflection object in the application program;

The first address modifying submodule is adapted to modify the directory address of the original class loader to the directory address of the current class loader.

The first loading submodule is adapted to load the class loader from the directory address of the current class loader.

Optionally, the specified component object information includes a directory address of the current application object, and the specified component object in the application program includes an application object;

The loading modules include:

The second address obtaining submodule is adapted to obtain the directory address of the original application object in the application program by using the reflection object in the application program;

The second address modifying submodule is adapted to modify the directory address of the original application object to the directory address of the current application object.

The second loading submodule is adapted to load the application object from the directory address of the current application object.

Optionally, the specified component object information includes a directory address of current resource data, and the specified component object in the application program includes resource data;

The loading modules include:

The third address obtaining submodule is adapted to obtain the directory address of the original resource data in the application program by using the reflection object in the application program;

The third address modification sub-module is adapted to modify the directory address of the original resource data to the directory address of the current resource data.

The third loading submodule is adapted to load the resource data from the directory address of the current resource data.

Optionally, the specified component object information includes the directory address of the current package manager, and the specified component object in the application program includes the package manager;

The loading modules include:

The fourth address obtaining submodule is adapted to obtain the directory address of the original package manager in the application program by using the reflection object in the application program;

The fourth address modifying submodule is adapted to modify the directory address of the original package manager to the directory address of the current package manager.

The fourth loading submodule is adapted to load the package manager from the directory address of the current package manager.

According to a method for upgrading an application program and a device for upgrading an application program according to the present invention, after obtaining the installation package of the application program, it can extract the component object information specified in the package, and according to the specified component object information Determine the specified component object in the application, use the specified component object information to load the specified component object, break the permissions stipulated by android, and load the object component by redirecting the original loading address to the new address in the installation package The component object realizes the automatic upgrade of the application program, thereby solving the problem of the cumbersome upgrade process of the traditional application program, and the upgrade of the application program can be completed without the need for the user to perform the upgrade operation, which has achieved the benefits of completing the upgrade quickly and improving the user experience Effect.

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 steps of an embodiment of a method for upgrading an application program according to an embodiment of the present invention;

Fig. 2 shows a structural block diagram of an embodiment of an apparatus for updating an application program 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.

Referring to FIG. 1 , it shows a flow chart of steps of an embodiment of a method for upgrading an application program according to an embodiment of the present invention, which may specifically include the following steps:

Step 101, obtaining the installation package of the application program to be upgraded;

In an embodiment of the invention, the application may be a version adapted for a computing device or a version adapted for a mobile device. For example, the computing device version of the mobile assistant application, such as the PC version of the mobile assistant application, or the mobile device version of the mobile assistant application, such as the Android version of the mobile assistant application.

In a specific implementation, many application programs are installed in the terminal device, which may include application programs installed by users and application programs built in the system. The terminal device where the application program is located can preset a detection mechanism to detect whether there is a new APK (Android Package, installation package). For example, a mobile assistant or other applications can be installed on the terminal device to query which applications the terminal device has Need to upgrade. Specifically, when the mobile assistant detects that there are many applications that need to be upgraded, the mobile assistant on the terminal device side can compress the application package name and application version number of the installed application in Gzip format, and then send it to the The server on the network side obtains a green, non-toxic, and safe APK that has been audited and certified by the Security Testing Center. Using the mobile phone assistant to obtain the APK of the application program can save traffic and obtain network resources more quickly, conveniently and safely.

In practical applications, the mobile assistant can be set to detect once at a predetermined time interval. When it detects that there is a new APK on the network side server, it will obtain the APK in the form of an HTTP request or other methods. In order to protect the obtained new APK , which is convenient for user management or data reading. It can be stored in a designated location, such as installed in the mobile device memory or SD card of the mobile device. In addition, it can also be installed in an intelligent way according to the characteristics of the APK (the size of the APK). Suitable location. In a specific implementation, it is possible to give priority to storing the APK in the SD card, which is convenient for the user to manage, and at the same time will not occupy the memory of the mobile device, which will slow down the speed of the mobile device. For example, APK can be saved in: sdcard/download/data.

Of course, in practical applications, when a new APK is released by the server, the server may actively send the APK to the terminal device, which is not limited in this embodiment of the present invention.

Step 102, extracting specified component object information from the installation package;

In practical applications, corresponding configuration information can be set in the application program in advance, wherein the instruction information for obtaining component object information can be set in the configuration information, and when the APK with the upgraded application program is obtained, according to the configuration information Get the specified component object information from the APK.

Step 103, determining the specified component object in the application according to the specified component object information;

In the embodiment of the present invention, specified component object information can be extracted from the APK, and then the component objects in the application that need to be upgraded can be determined according to the component object information.

Step 104, using the specified component object information to load the specified component object.

In a preferred embodiment of the present invention, the specified component object information includes the directory address of the current class loader, and the specified component object in the application program may include the class loader;

The step 104 may include the following sub-steps:

Sub-step S11, using the reflection object in the application to obtain the directory address of the original class loader in the application;

Sub-step S12, changing the directory address of the original class loader to the directory address of the current class loader.

Sub-step S13, loading the class loader from the directory address of the current class loader.

In the embodiment of the present invention, because in the Android system, some undisclosed functions cannot be directly called through the API interface, so the JAVA reflection mechanism is used to call some undisclosed functions to implement the upgrade of the application program. Specifically, the JAVA reflection mechanism is that when the application is running, for any class, you can know all the properties and methods of this class; for any object, you can call any of its methods and properties; The function of dynamically obtaining information and dynamically calling methods of objects is called the reflection mechanism of the JAVA language.

When running an application, first run the JVM (Java Virtual Machine), and then load the application class into the JVM to run. The part responsible for loading the application class is the class loader. In the embodiment of the present invention, the purpose of modifying the class loader is to modify the code of the application program, and the specifically modified code may include classes in the application program. Use the JAVA reflection mechanism to modify the directory address of the original class loader in the application to the directory address of the class loader in the new APK. When the application is loaded again, it can be loaded directly from the directory address of the new class loader. The modified The classes that the class loader needs to load when the application program is started are also modified, so that the upgrade of the application program such as the addition of new functions of the application program and the modification of BUG in the application program can be realized.

In a preferred embodiment of the present invention, the specified component object information may include the directory address of the current application object, and the specified component object in the application program may include the application object;

The step 104 may include the following sub-steps:

Sub-step S21, using the reflection object in the application to obtain the directory address of the original application object in the application;

Sub-step S22, changing the directory address of the original application object to the directory address of the current application object.

Sub-step S23, loading the application object from the directory address of the current application object.

In the embodiment of the present invention, the purpose of modifying the application object is to modify the startup logic sequence in the application program, specifically, the loading sequence of the classes in the application program. In the specific implementation, after using the application for a period of time, it is found that loading classes in other order in the application can make better use of the application, or the application adds new functions by modifying the class loader, and the reflection mechanism can be used Change the loading address of the application object to the loading address of the application object in the new APK. When the application is loaded again, it can be loaded directly from the directory address of the new application object, and the logical order of the classes in the application will change. For example, The New Additions section will launch when the application starts.

In a preferred embodiment of the present invention, the specified component object information includes the directory address of the current resource data, and the specified component object in the application program includes resource data;

The step 104 may include the following sub-steps:

Sub-step S31, using the reflection object in the application to obtain the directory address of the original resource data in the application;

Sub-step S32, modifying the directory address of the original resource data to the directory address of the current resource data.

Sub-step S33, loading the resource data from the directory address of the current resource data.

In a specific implementation, the resource data may be image resources or text resources, for example, themes, wallpapers, ringtones, software, music, games, videos, e-books and so on. The resource data has file attribute information, wherein the file attribute information includes the size of the resource, the type of the resource, the version number of the resource, the identifier of the resource, and so on.

In practice, picture resources or text resources need to be updated frequently. For example, an application program may need to add icons due to the increase of new functions. In the embodiment of the present invention, only the pictures in the application program need to be modified from the new APK The pictures in the application can be loaded directly from the directory address of the new picture when the application is loaded again, so as to complete the update of the pictures in the application.

In a preferred embodiment of the present invention, the specified component object information includes the directory address of the current package manager, and the specified component object in the application program includes the package manager;

The step 104 may include the following sub-steps:

Sub-step S41, using the reflection object in the application to obtain the directory address of the original package manager in the application;

Sub-step S42, changing the directory address of the original package manager to the directory address of the current package manager.

Sub-step S43, loading the package manager from the directory address of the current package manager.

In a specific implementation, the loading address of the package manager of the application program can also be modified to indicate that the application program has been updated to a certain extent. Specifically, the directory address of the package manager in the application program can be changed to Locate to the address of the package manager in the APK. When the application is loaded again, it can be loaded directly from the directory address of the new package manager. For example, after the original application loads the package manager, it is displayed as version 9.0, and the address of the package manager is relocated. After loading, it is displayed as version 9.1.

In the embodiment of the present invention, redirection and reflection technologies are used to realize automatic upgrading of application programs. When a new APK is obtained, obtain the directory address of the specified component object in the APK, and modify the directory address of the original specified component object in the application program to the specified component object in the new APK according to the directory address of the specified component Directory address, when the application loads the specified component object again, it will no longer load from the directory address of the original specified component object, but directly load from the directory address of the specified component object in the new APK, thus solving the problem of traditional application The program upgrade process is cumbersome, and the upgrade of the application program can be completed without the need for the user to perform the upgrade operation, and the beneficial effect of quickly completing the upgrade and improving the user experience is achieved. In practice, forwarding technology can also be used to upgrade the application, that is, when the specified component object needs to be loaded from the directory address of the original specified component object, jump to the directory address of the specified component of the new APK to load the specified component object.

It should be noted that, for the method embodiment, for the sake of simple description, it is expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action order, because according to this According to the invention, certain steps may be performed in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

Referring to FIG. 2 , it shows a structural block diagram of an embodiment of an application program upgrade device embodiment according to an embodiment of the present invention, which may specifically include the following modules:

Obtaining module 201, adapted to obtain the installation package of the application program to be upgraded;

An extraction module 202, adapted to extract specified component object information from the installation package;

A determining module 203, adapted to determine the specified component object in the application according to the specified component object information;

The loading module 204 is adapted to use the specified component object information to load the specified component object.

In a preferred embodiment of the present invention, the specified component object information includes the directory address of the current class loader, and the specified component object in the application program includes the class loader;

The loading module 204 may include:

The first address obtaining submodule is adapted to obtain the directory address of the original class loader in the application program by using the reflection object in the application program;

The first address modification submodule is adapted to modify the directory address of the original class loader to the directory address of the current class loader.

The first loading submodule is adapted to load the class loader from the directory address of the current class loader.

In a preferred embodiment of the present invention, the specified component object information includes the directory address of the current application object, and the specified component object in the application program includes the application object;

The loading module 204 may include:

The second address obtaining submodule is adapted to obtain the directory address of the original application object in the application program by using the reflection object in the application program;

The second address modifying submodule is adapted to modify the directory address of the original application object to the directory address of the current application object.

The second loading submodule is adapted to load the application object from the directory address of the current application object.

In a preferred embodiment of the present invention, the specified component object information includes the directory address of the current resource data, and the specified component object in the application program includes resource data;

The loading module 204 may include:

The third address obtaining submodule is adapted to obtain the directory address of the original resource data in the application program by using the reflection object in the application program;

The third address modification sub-module is adapted to modify the directory address of the original resource data to the directory address of the current resource data.

The third loading submodule is adapted to load the resource data from the directory address of the current resource data.

In a preferred embodiment of the present invention, the specified component object information includes the directory address of the current package manager, and the specified component object in the application program includes the package manager;

The loading module 204 may include:

The fourth address obtaining submodule is adapted to obtain the directory address of the original package manager in the application program by using the reflection object in the application program;

The fourth address modifying submodule is adapted to modify the directory address of the original package manager to the directory address of the current package manager.

The fourth loading submodule is adapted to load the package manager from the directory address of the current package manager.

As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

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 application program 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 functions of some or all components in the application program upgrading device according to the embodiment of the present invention. 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 invention discloses A1. A method for upgrading an application program, comprising:

Obtain the installation package of the application program to be upgraded;

Extracting specified component object information from the installation package;

Determine the specified component object in the application according to the specified component object information;

The specified component object is loaded by using the specified component object information.

A2. The method according to claim A1, wherein the specified component object information includes the directory address of the current class loader, and the specified component object in the application program includes the class loader;

The step of loading the specified component object by using the specified component object information includes:

Obtaining the directory address of the original class loader in the application by using the reflection object in the application;

Change the directory address of the original class loader to the directory address of the current class loader.

The class loader is loaded from the directory address of the current class loader.

A3. The method according to claim A1 or A2, wherein the specified component object information includes the directory address of the current application object, and the specified component object in the application program includes the application object;

The step of loading the specified component object by using the specified component object information includes:

Obtaining the directory address of the original application object in the application by using the reflection object in the application;

Modify the directory address of the original application object to the directory address of the current application object.

The application object is loaded from the directory address of the current application object.

A4. The method according to claim A3, wherein the specified component object information includes a directory address of current resource data, and the specified component object in the application program includes resource data;

The step of loading the specified component object by using the specified component object information includes:

Obtaining the directory address of the original resource data in the application program by using the reflection object in the application program;

Change the directory address of the original resource data to the directory address of the current resource data.

The resource data is loaded from the directory address of the current resource data.

A5. The method according to claim A4, wherein the specified component object information includes the directory address of the current package manager, and the specified component object in the application program includes the package manager;

The step of loading the specified component object by using the specified component object information includes:

Obtaining the directory address of the original package manager in the application by using the reflection object in the application;

Change the directory address of the original package manager to the directory address of the current package manager.

The package manager is loaded from the directory address of the current package manager.

The present invention also discloses B6, a device for upgrading application programs, including:

An acquisition module, adapted to acquire the installation package of the application program to be upgraded;

An extraction module, adapted to extract specified component object information from the installation package;

A determining module, adapted to determine the specified component object in the application according to the specified component object information;

A loading module, adapted to load the specified component object by using the specified component object information.

B7. The device according to claim B6, wherein the specified component object information includes a directory address of a current class loader, and the specified component object in the application program includes a class loader;

The loading modules include:

The first address obtaining submodule is adapted to obtain the directory address of the original class loader in the application program by using the reflection object in the application program;

The first address modifying submodule is adapted to modify the directory address of the original class loader to the directory address of the current class loader.

The first loading submodule is adapted to load the class loader from the directory address of the current class loader.

B8. The device according to claim B6 or B7, wherein the specified component object information includes the directory address of the current application object, and the specified component object in the application program includes the application object;

The loading modules include:

The second address obtaining submodule is adapted to obtain the directory address of the original application object in the application program by using the reflection object in the application program;

The second address modifying submodule is adapted to modify the directory address of the original application object to the directory address of the current application object.

The second loading submodule is adapted to load the application object from the directory address of the current application object.

B9. The device according to claim B8, wherein the specified component object information includes a directory address of current resource data, and the specified component object in the application program includes resource data;

The loading modules include:

The third address obtaining submodule is adapted to obtain the directory address of the original resource data in the application program by using the reflection object in the application program;

The third address modification sub-module is adapted to modify the directory address of the original resource data to the directory address of the current resource data.

The third loading submodule is adapted to load the resource data from the directory address of the current resource data.

B10. The device according to claim B9, wherein the specified component object information includes the directory address of the current package manager, and the specified component object in the application program includes the package manager;

The loading modules include:

The fourth address obtaining submodule is adapted to obtain the directory address of the original package manager in the application program by using the reflection object in the application program;

The fourth address modifying submodule is adapted to modify the directory address of the original package manager to the directory address of the current package manager.

The fourth loading submodule is adapted to load the package manager from the directory address of the current package manager.

Claims (8)

1. A method for upgrading an application, comprising: Obtain the installation package of the application program to be upgraded; Extracting specified component object information from the installation package; Determine the specified component object in the application according to the specified component object information; Loading the specified component object by using the specified component object information; Wherein, the specified component object information includes the directory address of the current class loader, and the specified component object in the application program includes the class loader; The step of loading the specified component object by using the specified component object information includes: Obtaining the directory address of the original class loader in the application by using the reflection object in the application; Modify the directory address of the original class loader to the directory address of the current class loader; The class loader is loaded from the directory address of the current class loader. 2. The method according to claim 1, wherein the specified component object information includes the directory address of the current application object, and the specified component object in the application program includes the application object; The step of loading the specified component object by using the specified component object information includes: Obtaining the directory address of the original application object in the application by using the reflection object in the application; Modify the directory address of the original application object to the directory address of the current application object; The application object is loaded from the directory address of the current application object. 3. The method according to claim 2, wherein the specified component object information includes a directory address of current resource data, and the specified component object in the application program includes resource data; The step of loading the specified component object by using the specified component object information includes: Obtaining the directory address of the original resource data in the application program by using the reflection object in the application program; Modify the directory address of the original resource data to the directory address of the current resource data; The resource data is loaded from the directory address of the current resource data. 4. The method according to claim 3, wherein the specified component object information includes the directory address of the current package manager, and the specified component object in the application program includes the package manager; The step of loading the specified component object by using the specified component object information includes: Obtaining the directory address of the original package manager in the application by using the reflection object in the application; Change the directory address of the original package manager to the directory address of the current package manager; The package manager is loaded from the directory address of the current package manager. 5. A device for updating applications, comprising: An acquisition module, adapted to acquire the installation package of the application program to be upgraded; An extraction module, adapted to extract specified component object information from the installation package; A determining module, adapted to determine the specified component object in the application according to the specified component object information; a loading module, adapted to load the specified component object by using the specified component object information; Wherein, the specified component object information includes the directory address of the current class loader, and the specified component object in the application program includes the class loader; The loading modules include: The first address obtaining submodule is adapted to obtain the directory address of the original class loader in the application program by using the reflection object in the application program; The first address modification submodule is adapted to modify the directory address of the original class loader to the directory address of the current class loader; The first loading submodule is adapted to load the class loader from the directory address of the current class loader. 6. The device according to claim 5, wherein the specified component object information includes the directory address of the current application object, and the specified component object in the application program includes the application object; The loading modules include: The second address obtaining submodule is adapted to obtain the directory address of the original application object in the application program by using the reflection object in the application program; The second address modifying submodule is adapted to modify the directory address of the original application object to the directory address of the current application object; The second loading submodule is adapted to load the application object from the directory address of the current application object. 7. The device according to claim 6, wherein the specified component object information includes a directory address of current resource data, and the specified component object in the application program includes resource data; The loading modules include: The third address obtaining submodule is adapted to obtain the directory address of the original resource data in the application program by using the reflection object in the application program; The third address modification submodule is suitable for modifying the directory address of the original resource data to the directory address of the current resource data; The third loading submodule is adapted to load the resource data from the directory address of the current resource data. 8. The device according to claim 7, wherein the specified component object information includes the directory address of the current package manager, and the specified component object in the application program includes the package manager; The loading modules include: The fourth address obtaining submodule is adapted to obtain the directory address of the original package manager in the application program by using the reflection object in the application program; The fourth address modification submodule is suitable for modifying the directory address of the original package manager to the directory address of the current package manager; The fourth loading submodule is adapted to load the package manager from the directory address of the current package manager.