CN103685494A - Method and device for recognizing Cookies and method and device clearing Cookies - Google Patents

Abstract

The invention discloses a Cookies identification method and device, and a Cookies cleaning method and device, belonging to the technical field of the Internet. The Cookies identification method includes: using a pre-prepared user name and password to log in to a target website, and obtaining a list of Cookies files corresponding to the target website; using various combinations of one or more Cookies files in the list of Cookies files to sequentially identify The target website performs an automatic login test; according to the result of the automatic login test, a collection of Cookies files related to the automatic login of the target website is obtained. According to the present invention, the Cookies file collection related to automatic login can be identified conveniently and quickly.

Description

Method and device for identifying cookies and method and device for cleaning cookies

technical field

The invention relates to the technical field of the Internet, in particular to a method and device for identifying cookies and a method and device for cleaning cookies.

Background technique

Cookies are text files that are placed in the hard disk or memory of the user's computer by the web server when the user browses the website. When the user logs in to the website again, the website can take corresponding actions by reading the Cookies file in the computer and knowing the relevant information of the user, for example, displaying a welcome slogan on the page, or allowing the user to log in without entering the user name and password. Direct login and more.

Most of the content in the Cookies file has been encrypted, so it seems to ordinary users that it is just some meaningless combination of letters and numbers. There are some existing tools that can read Cookies fields and their corresponding values, such as ieCookiesView, ChromeCookiesView, etc.

With reference to Fig. 1, for ieCookiesView, it reads in the Cookies file of ie browser, lists the attribute of this Cookies file, as web site (website), hits (number of hits), accessed date (last access date), modified date (modification date), created date (creation date), size (size), user (user) and filename (file name), etc., and list the information contained in the Cookies file, according to key (key), value ( Value), domain (domain name), secure (security), expiration date (expiration date), modified date (modification date) and createdin (established in) give corresponding values respectively.

It can be seen that the existing Cookies reading tool only displays the content of the Cookies file, and cannot give the specific function of the Cookies file. For example, some websites use Cookies files to store user names and passwords, and logging into a website often generates multiple Cookies files, but according to the existing Cookies reading tools, it is impossible to know which or which Cookies files store the user name and password. password information. In this way, it is impossible to clean up the Cookies file under the premise of ensuring automatic login to the website.

Contents of the invention

In view of the above problems, the present invention is proposed to provide a Cookies identification method and device and a Cookies cleaning method and device that overcome the above problems or at least partially solve the above problems.

According to one aspect of the present invention, a method for identifying Cookies is provided, including:

Use the pre-prepared user name and password to log in to the target website to obtain the list of Cookies files corresponding to the target website;

Using various combinations of one or more Cookies files in the Cookies file list to perform automatic login tests on the target website in turn;

According to the automatic login test result, the collection of Cookies files related to the automatic login of the target website is acquired.

Optionally, the various combinations of one or more Cookies files in the Cookies file list are used to sequentially perform an automatic login test on the target website, including:

Each time a Cookies file is deleted from the Cookies file list, an automatic login test is performed on the target website;

If automatic login is possible, then it is determined that the deleted Cookies file has nothing to do with automatic login, and the next automatic login test is performed;

If automatic login is not possible, then determine that the deleted Cookies file is related to automatic login, restore the deleted Cookies file to the current Cookies file list, and perform the next automatic login test.

Optionally, the various combinations of one or more Cookies files in the Cookies file list are used to sequentially perform an automatic login test on the target website, including:

Starting from n=1, select n Cookies files from the Cookies file list each time to perform an automatic login test on the target website;

If automatic login is possible, then determine that the selected n Cookies files are related to automatic login, and stop the automatic login test;

If n takes the current value and cannot automatically log in each time, set n=n+1 to continue the automatic login test.

Optionally, using the pre-prepared user name and password to log in to the target website to obtain a list of Cookies files corresponding to the target website, including:

Setting the home page of the browser to the url of the target website;

Clear all cookies files of the browser;

Open the browser and use the pre-prepared username and password to log in to the target website;

Close the browser, obtain the list of Cookies files from the Cookies storage directory or the Cookies library of the browser, and obtain the list of Cookies files corresponding to the target website.

According to another aspect of the present invention, a method for cleaning cookies is provided, including:

Obtain the collection of Cookies files related to automatic login obtained according to the above-mentioned Cookies identification method;

Delete other Cookies files in the user's device except the collection of Cookies files related to automatic login.

According to another aspect of the present invention, a Cookies identification device is provided, including:

The Cookies list obtaining unit is adapted to use a pre-prepared user name and password to log in to the target website, and obtain a list of Cookies files corresponding to the target website;

The test unit is adapted to use various combinations of one or more Cookies files in the Cookies file list to perform an automatic login test on the target website in turn;

The Cookies identification unit is adapted to obtain a set of Cookies files related to automatic login of the target website according to the automatic login test result.

Optionally, the test unit is further adapted to:

Each time a Cookies file is deleted from the Cookies file list, an automatic login test is performed on the target website;

If automatic login is possible, then it is determined that the deleted Cookies file has nothing to do with automatic login, and the next automatic login test is performed;

If automatic login is not possible, then determine that the deleted Cookies file is related to automatic login, restore the deleted Cookies file to the current Cookies file list, and perform the next automatic login test.

Optionally, the test unit is further adapted to:

Starting from n=1, select n Cookies files from the Cookies file list each time to perform an automatic login test on the target website;

If automatic login is possible, then determine that the selected n Cookies files are related to automatic login, and stop the automatic login test;

If n takes the current value and cannot automatically log in each time, set n=n+1 to continue the automatic login test.

Optionally, the Cookies list acquisition unit is further adapted to:

Setting the home page of the browser to the url of the target website;

Clear all cookies files of the browser;

Open the browser and use the pre-prepared username and password to log in to the target website;

Close the browser, obtain the list of Cookies files from the Cookies storage directory or the Cookies library of the browser, and obtain the list of Cookies files corresponding to the target website.

According to another aspect of the present invention, a device for cleaning cookies is provided, including:

The Cookies identification result acquisition unit is adapted to acquire the collection of Cookies files related to automatic login obtained according to the above-mentioned Cookies identification device;

The Cookies cleaning unit is adapted to delete other Cookies files in the user equipment except the set of Cookies files related to automatic login.

According to the above-mentioned one or more technical solutions of the present invention, various combinations of one or more Cookies files in the Cookies file list corresponding to the target website are used to perform automatic login tests on the target website in turn, and according to the results of the automatic login test, it is possible to It is convenient and quick to identify the collection of Cookies files related to automatic login, so as to facilitate the use of users.

Further, when cleaning the Cookies, the collection of Cookies files related to automatic login can be retained according to the Cookies identification result, so as to ensure that the user can still automatically log in to the target website.

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 the operating interface of an existing Cookies reading tool;

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

Fig. 3 shows the interface that carries out website login by automatic form filling in the embodiment of the present invention;

FIG. 4 shows a flowchart of a method for cleaning Cookies according to an embodiment of the present invention;

FIG. 5 shows a structural diagram of a Cookies identification device according to an embodiment of the present invention;

Fig. 6 shows a structural diagram of a cookie cleaning device according to an embodiment 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. 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.

Fig. 2 shows a flowchart of a method for identifying Cookies according to an embodiment of the present invention. Referring to Figure 2, the method may include:

Step 202, using the pre-prepared user name and password to log in to the target website, and obtain a list of Cookies files corresponding to the target website;

Automatic login to the target website can be achieved through codes or plug-ins running on user equipment (such as computers, smart phones, and personal digital assistants (PDAs), etc.) to obtain the list of Cookies files corresponding to the target website. Of course, other methods can also be used. Any means to obtain the list of Cookies files corresponding to the target website.

As shown in Figure 3, the input of user name and password and the triggering of login can be completed through automatic form filling by using code or plug-in. .blog.163.com/blog/static/262117720088257847902/.

A specific implementation of using code or plug-ins to obtain the list of Cookies files corresponding to the target website is given below, including the following steps:

First, set the homepage of the browser as the url of the target website, for example, for the Taobao website, its url is http:/fWWW.taobao.com/.

Then, empty all the Cookies files of the browser (to ensure that the data is clean). For example, for the ie browser, the following steps can be followed to carry out the emptying: click the Tools menu, select Internet Options, click the General tab, and click the delete cookies button , click the OK button in the confirmation window, and click the OK button to close the "Internet Options" window;

Secondly, open browser, use pre-prepared user name and password to log in the described target website, for example, can apply for a test user name and password to log in Taobao website at Taobao website;

Finally, close the browser, obtain the Cookies file list from the browser's Cookies storage directory or Cookies library, and obtain the Cookies file list corresponding to the target website. For example, in the computer of the windoWs9X system, the storage location of the Cookies file is C:/WindoWs/Cookies, and in the computer of Windows NT/2000/XP, the storage location of the Cookies file is C:/Documents and Settings/Username/Cookies, After closing the browser, the Cookies file list can be obtained from the above location.

Wherein, the Cookies file in the Cookies file list may be stored with a domain name (domain) field as a primary key.

Step 204, using various combinations of one or more Cookies files in the Cookies file list to perform an automatic login test on the target website in turn;

Logging in to a website often generates multiple Cookies files, and one or several of these Cookies files are used to save user names and passwords for automatic login. Therefore, in this step, various possible combinations of these Cookies files are used to perform an automatic login test on the target website, so as to determine whether each combination can automatically log in to the target website.

Step 206, according to the automatic login test result, obtain the Cookies file collection related to the automatic login of the target website.

According to step 204, various combinations of Cookies files that can automatically log in to the target website have been obtained. In step 206, the combination that includes the smallest number of Cookies files can be selected from various combinations as the target website. A collection of cookies related to automatic login.

It can be seen that, according to the technical solution of the embodiment of the present invention, various combinations of one or more Cookies files in the Cookies file list corresponding to the target website are used to perform automatic login tests on the target website in turn, and according to the results of the automatic login test, it is possible to facilitate Quickly identify the collection of Cookies files related to automatic login, which is convenient for users

A kind of concrete realization of step 204 is provided below, and its realization principle is: delete the Cookies file irrelevant to automatic login one by one from the Cookies file list, the Cookies file list that obtains at last is the Cookies file collection (minimum collection) relevant with automatic login ). Specifically, the following steps may be included:

Each time a Cookies file is deleted from the Cookies file list, an automatic login test is performed on the target website;

If automatic login is possible, then it is determined that the deleted Cookies file has nothing to do with automatic login, and the next automatic login test is performed;

If automatic login is not possible, then confirm that the deleted Cookies file is related to automatic login, restore the deleted Cookies file to the current list of Cookies files, and perform the next automatic login test;

When all the Cookies files irrelevant to automatic login are deleted, the automatic login test is stopped, and the final list of Cookies files obtained is the set of Cookies files related to automatic login (minimum set).

For example, assume that the Cookies file list obtained after logging in to the Taobao website with the test user name and password includes 4 Cookies files, namely Cookies1, Cookies2, Cookies3 and Cookies4, and assume that Cookies2+Cookies4 is the minimum set that can automatically log in, Then the filtering process is as follows:

Delete Cookies1, and conduct a login test with Cookies2+Cookies3+Cookies4, and the result is automatic login, then it is determined that Cookies1 has nothing to do with automatic login, and the current Cookies file list includes Cookies2, Cookies3 and Cookies4;

Delete Cookies2, and use Cookies3+Cookies4 to perform a login test, and the result is that automatic login is not possible, then confirm that Cookies2 is related to automatic login, restore it to the Cookies file list, and the current Cookies file list still includes Cookies2, Cookies3 and Cookies4;

Delete Cookies3, and conduct a login test with Cookies2+Cookies4, and the result is automatic login, then it is determined that Cookies3 has nothing to do with automatic login, and the current Cookies file list includes Cookies2 and Cookies4;

Delete Cookies4, and use Cookies3 to perform a login test, and the result is that automatic login is not possible, then confirm that Cookies4 is related to automatic login, and restore it to the Cookies file list. The current Cookies file list still includes Cookies2 and Cookies4.

In this way, the final collection of Cookies files related to automatic login is Cookies2 and Cookies4.

Another specific implementation of step 204 is provided below, and its realization principle is: select various combinations of Cookies files from the Cookies file list to perform login tests one by one, and the test order is from small to large according to the number of Cookies files included in the combination. If a combination can successfully log in, the combination is a collection of Cookies files related to automatic login. Specifically, the following steps may be included:

Starting from n=1, select n Cookies files from the Cookies file list each time to perform an automatic login test on the target website;

If automatic login is possible, then determine that the selected n Cookies files are related to automatic login, and stop the automatic login test;

If n takes the current value and cannot automatically log in each time, set n=n+1 to continue the automatic login test.

For example, assume that the Cookies file list obtained after logging in to the Taobao website with the test user name and password includes 4 Cookies files, namely Cookies1, Cookies2, Cookies3 and Cookies4, and assume that Cookies2+Cookies4 is the minimum set that can automatically log in, Then the filtering process is as follows:

In the first round, n=1, that is, each time a Cookies file is selected for login testing, for example, using Cookies1, Cookies2, Cookies3 and Cookies4 to log in respectively, the results cannot be automatically logged in, and enter the second round;

In the second round, n=2, that is, two Cookies files are selected for the login test each time. There are 6 possible combinations, namely: Cookies1+Cookies2, Cookies1+Cookies3, Cookies1+Cookies4, Cookies2+Cookies3, Cookies2+Cookies4, Cookies3+Cookies4, carry out the login test according to the above order, the first 4 times can not be automatically logged in, the fifth time can be automatically logged in, stop the test (that is, the self-combination of Cookies3+Cookies4 will not be tested), and finally get the information related to automatic login The collection of Cookies files is Cookies2 and Cookies4.

Of course, if the minimum set that can be automatically logged in includes 3 Cookies files, the results of the first two rounds of testing are that automatic login is not possible every time, and the set of Cookies files related to automatic login can be successfully obtained in the third round of testing.

It should be noted that although two specific screening methods are given above, those skilled in the art can also use other possible screening methods, which are not limited in the embodiment of the present invention.

As mentioned earlier, logging in to a website will often generate multiple Cookies files, and one or several of these Cookies files are used to save user names and passwords for automatic login. Automatically log in to the collection of related Cookies files, and store all Cookies files according to the domain as the primary key. During specific implementation, an attribute can be added to each Cookies file as "storage user name and password", which is empty by default. According to this attribute, the user can be reminded that those Cookies files are related to automatic login. In this way, when cookies are cleared, the collection of Cookies files related to automatic login can be retained according to the cookie identification result, so as to ensure that the user can still automatically log in to the target website.

Fig. 4 shows a flow chart of a method for clearing cookies according to an embodiment of the present invention. Referring to Figure 4, the method may include:

Step 402, obtaining the collection of Cookies files related to automatic login obtained according to the above-mentioned Cookies identification method;

Step 404, delete other Cookies files in the user equipment except the set of Cookies files related to automatic login, and the user equipment may be computers, smart phones, personal digital assistants (PDAs), etc.

Devices for realizing the above-mentioned Cookies identification method and Cookies cleaning method are respectively provided below.

Fig. 5 shows a structural diagram of a device for identifying cookies according to an embodiment of the present invention. Referring to FIG. 5, the Cookies identification device may include a Cookies list acquisition unit 502, a test unit 504 and a Cookies identification unit 506, wherein:

The Cookies list obtaining unit 502 is adapted to use the pre-prepared user name and password to log in to the target website, and obtain the list of Cookies files corresponding to the target website. The Cookies list acquisition unit 502 can obtain the corresponding Cookies file list of the target website in the following manner: the homepage of the browser is set as the url of the target website; all Cookies files of the browser are cleared; Log in to the target website with the user name and password; close the browser, obtain the list of Cookies files from the browser's Cookies storage directory or Cookies library, and obtain the list of Cookies files corresponding to the target website. Wherein, the Cookies file in the Cookies file list may be stored with a domain name (domain) field as a primary key.

The testing unit 504 is adapted to sequentially perform an automatic login test on the target website by using various combinations of one or more Cookies files in the Cookies file list. Logging in to a website often generates multiple Cookies files, and one or several of these Cookies files are used to save user names and passwords for automatic login. Therefore, the test unit 504 uses various possible combinations of these Cookies files to perform an automatic login test on the target website, and can determine whether each combination can automatically log in to the target website.

The Cookies identifying unit 506 is adapted to obtain a set of Cookies files related to automatic login of the target website according to the automatic login test result. The Cookies identifying unit 506 may select the combination including the smallest number of Cookies files from various combinations obtained by the testing unit 504 as the set of Cookies files related to the automatic login of the target website.

Wherein, a kind of realization principle of testing unit 504 is: delete the Cookies file irrelevant to automatic login from the Cookies file list one by one, the Cookies file list obtained finally is the Cookies file set (minimum set) related to automatic login. Specifically, the test unit 504 can perform an automatic login test in the following manner:

Each time a Cookies file is deleted from the Cookies file list, an automatic login test is performed on the target website;

If automatic login is possible, then it is determined that the deleted Cookies file has nothing to do with automatic login, and the next automatic login test is performed;

If automatic login is not possible, then determine that the deleted Cookies file is related to automatic login, restore the deleted Cookies file to the current Cookies file list, and perform the next automatic login test.

Wherein, another kind of realization principle of test unit 504 is: select various combinations of Cookies files from the Cookies file list to carry out the login test one by one, and the test order is according to the number of Cookies files included in the combination from small to large. If you successfully log in, the combination is a collection of Cookies files related to automatic login. Specifically, the test unit 504 can perform an automatic login test in the following manner:

Starting from n=1, select n Cookies files from the Cookies file list each time to perform an automatic login test on the target website;

If automatic login is possible, then determine that the selected n Cookies files are related to automatic login, and stop the automatic login test;

If n takes the current value and cannot automatically log in each time, set n=n+1 to continue the automatic login test.

It should be noted that although two specific implementation manners of the testing unit 504 are given above, those skilled in the art may also adopt various other possible implementation manners, which are not limited in this embodiment of the present invention.

Fig. 6 shows a structural diagram of a cookie cleaning device according to an embodiment of the present invention. Referring to Figure 6, the Cookies cleaning device may include:

The Cookies identification result acquisition unit 602 is adapted to acquire the set of Cookies files related to automatic login obtained by the Cookies identification device according to any one of claims 6 to 9;

The Cookies cleaning unit 604 is adapted to delete other Cookies files in the user equipment except the set of Cookies files related to the automatic login, and the user equipment may be computers, smart phones and personal digital assistants (PDAs).

To sum up, according to one or more technical solutions of the embodiments of the present invention, various combinations of one or more Cookies files in the Cookies file list corresponding to the target website are used to perform an automatic login test on the target website in turn, according to The automatic login test results can easily and quickly identify the collection of Cookies files related to automatic login, which is convenient for users to use. Further, when cleaning the Cookies, the collection of Cookies files related to automatic login can be retained according to the Cookies identification result, so as to ensure that the user can still automatically log in to the target website.

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

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

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

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

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

The various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) can be used in practice to realize some or all functions of some or all of the components in the Cookies identification device and the Cookies cleaning 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.

Claims (10)

1. A Cookies identification method, comprising: Use the pre-prepared user name and password to log in to the target website to obtain the list of Cookies files corresponding to the target website; Using various combinations of one or more Cookies files in the Cookies file list to perform automatic login tests on the target website in turn; According to the automatic login test result, the collection of Cookies files related to the automatic login of the target website is obtained. 2. The Cookies identification method as claimed in claim 1, wherein said adopting various combinations of one or more Cookies files in said Cookies file list carries out automatic login test to said target website successively, comprising: Each time a Cookies file is deleted from the Cookies file list, an automatic login test is performed on the target website; If automatic login is possible, then it is determined that the deleted Cookies file has nothing to do with automatic login, and the next automatic login test is performed; If automatic login is not possible, then determine that the deleted Cookies file is related to automatic login, restore the deleted Cookies file to the current Cookies file list, and perform the next automatic login test. 3. The Cookies identification method as claimed in claim 1, wherein said adopting various combinations of one or more Cookies files in said Cookies file list carries out automatic login test to said target website successively, comprising: Starting from n=1, select n Cookies files from the Cookies file list each time to perform an automatic login test on the target website; If automatic login is possible, then determine that the selected n Cookies files are related to automatic login, and stop the automatic login test; If n takes the current value and cannot automatically log in each time, set n=n+1 to continue the automatic login test. 4. The Cookies identification method as claimed in claim 1, wherein said logging in to the target website using a pre-prepared user name and password to obtain a list of Cookies files corresponding to the target website, comprising: Setting the home page of the browser to the url of the target website; Clear all cookies files of the browser; Open the browser and use the pre-prepared username and password to log in to the target website; Close the browser, obtain the list of Cookies files from the Cookies storage directory or the Cookies library of the browser, and obtain the list of Cookies files corresponding to the target website. 5. A method for cleaning cookies, including: Obtain the collection of Cookies files related to automatic login obtained according to the Cookies identification method described in any one of claims 1 to 4; Delete other Cookies files in the user's device except the collection of Cookies files related to automatic login. 6. A Cookies identification device, comprising: The Cookies list obtaining unit is adapted to use a pre-prepared user name and password to log in to the target website, and obtain a list of Cookies files corresponding to the target website; The test unit is adapted to use various combinations of one or more Cookies files in the Cookies file list to perform an automatic login test on the target website in turn; The Cookies identification unit is adapted to obtain a set of Cookies files related to automatic login of the target website according to the automatic login test result. 7. Cookies identifying device as claimed in claim 6, wherein, described testing unit is further adapted to: Each time a Cookies file is deleted from the Cookies file list, an automatic login test is performed on the target website; If automatic login is possible, then it is determined that the deleted Cookies file has nothing to do with automatic login, and the next automatic login test is performed; If automatic login is not possible, then determine that the deleted Cookies file is related to automatic login, restore the deleted Cookies file to the current Cookies file list, and perform the next automatic login test. 8. Cookies identifying device as claimed in claim 6, wherein, described testing unit is further adapted to: Starting from n=1, select n Cookies files from the Cookies file list each time to perform an automatic login test on the target website; If automatic login is possible, then determine that the selected n Cookies files are related to automatic login, and stop the automatic login test; If n takes the current value and cannot automatically log in each time, set n=n+1 to continue the automatic login test. 9. The Cookies identifying device as claimed in claim 6, wherein the Cookies list acquisition unit is further adapted to: Setting the home page of the browser to the url of the target website; Clear all cookies files of the browser; Open the browser and use the pre-prepared username and password to log in to the target website; Close the browser, obtain the list of Cookies files from the Cookies storage directory or the Cookies library of the browser, and obtain the list of Cookies files corresponding to the target website. 10. A device for cleaning cookies, comprising: The Cookies identification result acquisition unit is adapted to acquire the set of Cookies files related to automatic login obtained by the Cookies identification device according to any one of claims 6 to 9; The Cookies cleaning unit is adapted to delete other Cookies files in the user equipment except the set of Cookies files related to automatic login.

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