CN105205686A - Method and system for obtaining product price information - Google Patents

Abstract

The present invention provides a method and system for obtaining product price information, wherein the method includes: S0: pre-setting a data collection device, a database, and setting a price comparison plug-in in the terminal, and also includes: S1: collecting each price through the data collection device The product information of a product in different target shopping websites includes product prices, and all the product information collected by the data collection device is stored in the database; S2: automatically obtain the target under the current url address in the terminal through the price comparison plug-in For product information of the product, all product information corresponding to the target product is acquired according to the product information of the target product and the database. Through the technical solution of the present invention, the user can know the price information of the same target product on other target shopping sites without leaving the current shopping platform, avoiding multiple page transfers, thereby reducing user cost and improving user experience .

Description

A method and system for obtaining product price information

technical field

The invention relates to the field of computer technology, in particular to a method and system for acquiring product price information.

Background technique

The vigorous development of e-commerce has injected a strong impetus into the economy of our country, resulting in numerous shopping websites. Many consumers have used and are accustomed to shopping through shopping websites. The prices of the same products in different shopping websites are not the same, so , consumers have to compare the prices of the same products sold on various websites in order to obtain "good quality and low price" products.

At present, the most commonly used price comparison method for consumers is to compare product prices through engine-based price comparison websites. Consumers initiate search behaviors on the price comparison websites. Search by keyword, and list all product information including product price information that matches the keyword information for consumers to compare.

In this price comparison method, the user needs to leave the current shopping platform and enter more detailed product information on a specific website to retrieve the price information of the same product on different shopping websites. There are too many page transfers and the user’s use cost is high. .

Contents of the invention

In view of this, the present invention provides a method and system for obtaining product price information, which can reduce user costs.

In a first aspect, the present invention provides a method for obtaining product price information, including:

S0: Pre-set the data collection device, database and price comparison plug-in in the terminal, including:

S1: collect product information including product prices of each product in different target shopping websites through the data collection device, and store all the product information collected by the data collection device in the database;

S2: Automatically obtain the product information of the target product under the current Uniform Resource Locator url address in the terminal through the price comparison plug-in, and obtain all product information corresponding to the target product according to the product information of the target product and the database.

Further, the use of the data collection device to collect product information of each product in different target shopping websites includes:

A1: Analyze the product details page of at least one product in each target shopping website to respectively set data collection rules corresponding to different target shopping websites in the data collection device;

A2: Determine the seed url address of each of the target shopping websites, and obtain the corresponding url address of the product details page of each product under the corresponding target shopping website through web crawler technology according to each of the seed url addresses, respectively according to Each of the url addresses and the data collection rules of the target shopping website corresponding to the url addresses collect product information of all products in each of the target shopping websites.

Further, the use of the data collection device to collect product information of each product in different target shopping websites includes:

The data collection device communicates with the database of each target shopping website, so that the data collection device can directly obtain product information of each product from the database of each target shopping website.

Further, all the collected product information is stored in a database, including:

Clean and classify each product information collected, and store it in the database by field after uniform coding.

Further, the step S2 includes:

Comparing the plug-in to automatically obtain the code of the static page corresponding to the current url address in the terminal, analyze the code of the static page to obtain the product information of the target product under the static page through the analysis of the document object model dom node;

The price comparison plug-in acquires all product information corresponding to the target product in the following ways: Method 1: forward the product information of the target product to the data collection device so that the data collection device The product information acquires all product information corresponding to the target product from the database and returns all product information corresponding to the target product to the price comparison plug-in; mode 2, the comparison plug-in compares the product information of the target product according to the product information of the target product The database is searched by field, and all product information corresponding to the target product is retrieved.

Further, in step S2, after the acquisition of all product information corresponding to the target product, further include:

The product information corresponding to the target product is displayed according to a preset display rule of product information corresponding to the target product.

In a second aspect, the present invention provides a system for obtaining product price information, including:

The first setting unit is used to pre-set the data acquisition device, the database and the price comparison plug-in in the terminal;

The data collection device is used to collect product information including product prices of each product in different target shopping websites, and store all the product information collected by the data collection device in the database;

The price comparison plug-in is used to automatically obtain the product information of the target product under the current uniform resource locator url address in the terminal, and obtain all product information corresponding to the target product according to the product information of the target product and the database.

Further, the data collection device includes:

The second setting unit is used to analyze the product details page of at least one product in each target shopping website to respectively set data collection rules corresponding to different target shopping websites in the data collection device;

The determining unit is used to determine the seed url address of each target shopping website, and obtains the corresponding url address of the product details page of each product under the corresponding target shopping website through a web crawler according to each said seed url address, respectively according to Each of the url addresses and the data collection rules of the target website corresponding to the url address collect product information of all products in each target website, including product prices;

The first processing unit is used to clean and classify each collected product information, and store it in the database by field after uniform coding;

or,

The data collection device includes: a collection unit and a second processing unit;

The collection unit is used to communicate with the database of each target shopping website, and directly obtain the product information of each product from the database of each target shopping website respectively;

The second processing unit is used to clean and classify each collected product information, and store it in the database by field after uniform coding.

Further, the price comparison plug-in includes:

The first obtaining unit is used to automatically obtain the code of the static page corresponding to the current url address in the terminal, and analyze the dom node of the document object model according to the code of the static page to obtain the product information of the target product under the static page, including price information ;

The second obtaining unit is configured to forward the product information of the target product to the data collection device so that the data collection device obtains all information corresponding to the target product from the database according to the product information of the target product. and forwarding all the product information corresponding to the target product to the display unit;

or,

The price comparison plug-in includes: a third acquisition unit and a fourth acquisition unit;

The third obtaining unit is configured to automatically obtain the code of the static page corresponding to the current url address in the terminal, and analyze the code of the static page through the DOM node of the document object model to obtain product information of the target product under the static page, including price information;

The fourth acquisition unit is configured to search the database by field according to the product information of the target product, and retrieve all product information corresponding to the target product.

Further, the price comparison plug-in also includes:

The display unit is configured to display product information corresponding to the target product according to a preset display rule of product information corresponding to the target product.

The present invention provides a method and system for obtaining product price information. By setting up a data collection device, a database and a price comparison plug-in in the terminal in advance, the product information of each product on different shopping websites is collected by the data collection device and stored in In the database, when the user needs to compare prices, the product information of the target product under the current url (UniformResoureLocator, uniform resource locator) address in the terminal can be automatically obtained through the price comparison plug-in, and all corresponding to the target product can be obtained according to the target product information and the database. For the product information of the target product, it is no longer necessary to go to each target shopping website to obtain the price information corresponding to the target product through the search engine; in summary, users can learn about other target shopping websites without leaving the current shopping platform. The price information of the same target product avoids multiple page transfers, thereby reducing user costs and improving user experience.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are For some embodiments of the present invention, those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a method for obtaining product price information provided by an embodiment of the present invention;

Fig. 2 is another method for obtaining product price information provided by an embodiment of the present invention;

FIG. 3 is a system for obtaining product price information provided by an embodiment of the present invention;

FIG. 4 is another system for obtaining product price information provided by an embodiment of the present invention;

Fig. 5 is another system for acquiring product price information provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection of the present invention. scope.

As shown in Figure 1, an embodiment of the present invention provides a method for obtaining product price information, the method may include the following steps:

S0: Pre-set the data collection device, database and price comparison plug-in in the terminal, including:

S1: collect product information including product prices of each product in different target shopping websites through the data collection device, and store all the product information collected by the data collection device in the database;

S2: Automatically obtain the product information of the target product under the current url address in the terminal through the price comparison plug-in, and obtain all product information corresponding to the target product according to the product information of the target product and the database.

The embodiment of the present invention provides a method for obtaining product price information. The data collection device, the database and the price comparison plug-in are set in the terminal in advance, and the product information of each product on different shopping websites is collected by the data collection device and stored in the database. In , when the user needs to compare prices, the product information of the target product under the current url address in the terminal can be automatically obtained through the price comparison plug-in, and all product information corresponding to the target product can be obtained according to the product information of the target product and the database. It is no longer necessary to go to each target shopping website through a search engine to obtain price information corresponding to the target product; in summary, users can learn the price information of the same target product on other target shopping websites without leaving the current shopping platform , avoiding multiple page transfers, thereby reducing user usage costs and improving user experience.

Generally speaking, the product information of each shopping website is stored in its independent database. For the safety of the data in the database, the database will not communicate with other systems except the system corresponding to the shopping website. Moreover, each shopping website The product information of the same product disclosed on the website may also be different. Therefore, the public data of each target shopping website can be collected and analyzed to obtain the product information of all products in each target shopping website. In a preferred embodiment of the present invention, The product information collected by the data collection device for each product in different target shopping websites includes:

A1: Analyze the product details page of at least one product in each target shopping website to set data collection rules corresponding to different target shopping websites;

A2: Determine the seed url address of each of the target shopping websites, obtain the url address corresponding to the product details page of each product under the corresponding target shopping website through a web crawler according to each of the seed url addresses, respectively A url address and a data collection rule of a target shopping website corresponding to the url address collect product information of all products in each of the target shopping websites.

In the embodiment of the present invention, the public data on each shopping website is collected for analysis, for example, the product details page of at least one product on each shopping website is analyzed, and then the data collection rules corresponding to each shopping website are set; and Determine a seed url address of each shopping website, the seed url address can be used to reach the address of the product details page of each product of the target website corresponding to the url address, and the seed url address can be obtained through web crawler technology The url address corresponding to the product details page of each product of the target website corresponding to the seed url address, and then obtain each product from the url address corresponding to each product details page according to the set data collection rules corresponding to each target shopping website product information.

Of course, under the condition that the target shopping website allows its database to communicate with external systems, in a preferred embodiment of the present invention, the data collection device communicates with the database of each target shopping website, so that the data collection device can The product information of each product is directly acquired from the database of each target shopping website respectively.

Since the product information of the same product disclosed on each shopping website may be different, and the data format corresponding to the product information is also different, therefore, in a preferred embodiment of the present invention, all the product information that will be collected stored in the database, including:

Clean and classify each product information collected, and store it in the database by field after uniform coding.

In the embodiment of the present invention, the collected product information is cleaned, the data format of the collected product information can be unified, and the product information is classified and uniformly coded and stored in the database by field; on the one hand, it is convenient to manage the database , on the other hand, when retrieving the product information corresponding to the target product from the database according to the product information of the target product, all product information corresponding to the target product can be quickly retrieved by field according to the classification information, and the detection efficiency is improved.

In order to enable the user to enter the product information of the target product without leaving the current shopping platform to go to other websites to obtain the price information of the same product on other target shopping websites, avoid multiple page transfers and reduce user costs, in a preferred embodiment of the present invention, the The step S2 includes: comparing the plug-in to automatically obtain the code of the static page corresponding to the current url address in the terminal, and analyzing the code of the static page to obtain the product information of the target product under the static page through the analysis of the DOM node; further Specifically, the price comparison plug-in can obtain all product information corresponding to the target product in one of the following ways:

Method 1: Forwarding the product information of the target product to the data collection device so that the data collection device obtains all product information corresponding to the target product from the database according to the product information of the target product and returning all the product information corresponding to the target product to the price comparison plug-in;

Mode 2: The comparison plug-in searches the database by field according to the product information of the target product, and retrieves all product information corresponding to the target product.

Since there are so many shopping websites on the market today, and many shopping websites have the format of franchise stores, such as the Tmall store on the shopping website Taobao, when the collection device collects the product information of a certain product on the shopping website Taobao, it will Collect product information including the same product in each Tmall store, so when the product information corresponding to the target product in the database is detected based on the product information of the target product, the product information corresponding to the target product may be detected Therefore, in a preferred embodiment of the present invention, in step S2, after acquiring all the product information corresponding to the target product, it further includes: according to the preset product information corresponding to the target product A display rule for displaying product information corresponding to the target product.

Specifically, according to a variety of preset display rules, such as setting display rules so that all product information corresponding to the target product is sorted by product price, and only a few pieces of product information corresponding to the target product with the lowest price are displayed, the user can combine Select an appropriate display rule according to actual needs.

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 2, the embodiment of the present invention provides another method for obtaining product price information. The embodiment of the present invention uses the method of collecting the public data of each target shopping website as the product information of each product.

Specifically, the following steps may be included:

Step 201, preset multiple display rules corresponding to the product information of the target product; set the data collection device, the database and the price comparison plug-in in the terminal.

Step 202, analyze the product details page of at least one product in each target shopping website to set data collection rules corresponding to different target shopping websites in the data collection device.

The product information of the same product published on each shopping website may be different, and the format corresponding to the product information is also different. However, the format of each product detail page in the same shopping website is the same, and each shopping website The code of the static page corresponding to the product details page of each product is public data, which contains the characteristic values of the target product corresponding to the product details page. Therefore, it can be analyzed through the dom (DocumentObjectModel, Document Object Model) node analysis technology By analyzing any product details page, the product information of the target product corresponding to the product details page can be obtained as multiple feature values, for example: the name node of the product details page is a feature value, and its corresponding values are product name, class The node is a characteristic value, and its corresponding value is product classification information, the rate node is a characteristic value, and its corresponding value is the product price, etc., and then use the feature that the format of the product details page of all products in the same target website is the same , set a regular expression based on these characteristic values to obtain product information of all products in the same target website.

The above method can be used for setting collection rules for each target shopping website, the only difference is that the node names of the characteristic values may be different, for example, the node name of the node corresponding to the product name on the product details page of a shopping website may be N, And the format of the regular expression needs to be reasonably set in combination with the data format of each shopping website.

It should be noted that different data collection rules can be set in the same data collection device, and different data collection rules can also be set in different data collection devices, as long as the product information of the product on the target website is guaranteed. During the collection process, the data collection rules corresponding to the target website can be used.

Step 203, determine the seed url address of each target shopping website, obtain the url address corresponding to the product details page of each product under the corresponding target shopping website respectively through a web crawler according to each of the seed url addresses, respectively according to each The url address and the data collection rules of the target website corresponding to the url address collect product information of all products in each target website.

Using the public data collected from the products of each target shopping website as the corresponding product information, it is necessary to obtain the url address corresponding to the product details page of each product under each target shopping website. Therefore, web crawler technology can be used to set up a target website. For the seed url address, the web crawler technology can be used to obtain the address of the product details page of each product under the seed url address through the seed url address, and then obtain the corresponding data of each product details page through the corresponding data collection rules set in step 201. Product information for the product.

Step 204, cleaning and categorizing each collected product information, and storing it in the database by fields after uniform coding.

The format of the product information of products collected by different target shopping websites may be different due to the use of different collection rules. ", the formats are not the same, or the collected names contain special characters, so the collected data can be cleaned to unify the data format; the collected data can also be classified, coded uniformly and stored by field , For example, store all the collected information about Xiaomi 2S mobile phones in the same table of the database, and store them in the database by field. For example, the first field in the table corresponds to the product name "Xiaomi", and the second field corresponds to the product category. The information is "2S", and the third field corresponds to the product price, etc. In this way, the database can be managed conveniently, and when the product information corresponding to the target product is detected from the database according to the product information of the target product, it can be classified according to the field. Quickly detect all product information corresponding to the target product, improving detection efficiency.

Step 205, automatically obtain product information of the target product under the current url address in the terminal through the price comparison plug-in, and forward the product information of the target product to the data collection device.

When the user needs to compare prices, that is, to obtain the price information of the same target product on other shopping websites, the price comparison plug-in can be triggered through any trigger operation, and the price comparison plug-in can automatically obtain the product information of the target product under the current url address in the terminal. Specifically, The static page corresponding to the current url address in the terminal can be analyzed by using the dom node technology described in step 201 to obtain the product information of the target product under the url, such as product name and product classification information, and the consumer does not need to leave the current shopping The platform initiates search behaviors on other websites, avoiding too many page transfers and reducing user costs.

Step 206, the data acquisition device detects all the product information corresponding to the target product in the database according to the product information of the target product, and returns all the product information corresponding to the target product to the comparison plug-in of the terminal .

It should be noted that, in step 205 and step 206, the method of obtaining all products corresponding to the target product in the database can also directly search the database by field according to the product information of the target product through the price comparison plug-in, and retrieve All product information corresponding to the target product.

Step 207, select any display rule among preset display rules to display product information corresponding to the target product.

According to a variety of preset display rules, such as setting display rules so that all product information corresponding to the target product is sorted by product price, and only a few pieces of product information corresponding to the target product with the lowest price are displayed, the user can choose according to actual needs Appropriate display rules.

As shown in Figure 3 or 4, an embodiment of the present invention provides a system for obtaining product price information, which may include:

Data collection device 301, database 302 and terminal 303;

The data collection device 301 is used to collect product information including product prices of each product in different target shopping websites, and store all the product information collected by the data collection device in the database 302;

The terminal 303 includes a price comparison plug-in 303;

The price comparison plug-in 3031 is used to automatically obtain the product information of the target product under the current url address in the terminal 303, and obtain all product information corresponding to the target product from the database 302 according to the product information of the target product.

As shown in Figure 5, the embodiment of the present invention provides another system for obtaining product price information, in a possible implementation manner,

The data acquisition device 301 includes:

A setting unit 5011, configured to analyze the product details page of at least one product in each target shopping website to respectively set data collection rules corresponding to different target shopping websites;

The determining unit 5012 is configured to determine the seed url address of each target shopping website, and obtain the url address corresponding to the product details page of each product under the corresponding target shopping website through a web crawler according to each of the seed url addresses, respectively Collect product information of all products in each target website according to each of the url addresses and the data collection rules of the target website corresponding to the url address;

The first processing unit 5013 is used to clean and classify each collected product information, and store it in the database by field after uniform coding.

In one embodiment of the present invention, when the target shopping website allows the data collection device to directly obtain product information of all products from the database of the target shopping website, the data collection device 301 includes a collection unit and a second processing unit;

The collection unit is used to communicate with the database of each target shopping website, and directly obtain the product information of each product from the database of each target shopping website respectively;

The second processing unit is used to clean and classify each product information collected, and store it in the database by field after uniform coding.

In a possible implementation manner, the price comparison plug-in 3031 includes:

The first acquiring unit 50311 is configured to automatically acquire the code of the static page corresponding to the current url address in the terminal 303, and analyze the code of the static page through the dom node of the document object model to acquire the product information of the target product under the static page, including price information;

The second obtaining unit 50312 is configured to forward the product information of the target product to the data collection device 301 so that the data collection device 301 obtains from the database 302 all corresponding The product information of the target product and return all the product information corresponding to the target product to the price comparison plug-in 3031;

In a preferred embodiment of the present invention, the price comparison plug-in can also search by field in the database according to the product information of the target product, and retrieve all product information corresponding to the target product. Therefore, the price plug-in 3031 include:

The third acquisition unit is used to automatically acquire the code of the static page corresponding to the current url address in the terminal, and analyze the dom node of the document object model according to the static page code to obtain the product information of the target product under the static page, including price information ;

The fourth obtaining unit is configured to search the database by field according to the product information of the target product, and retrieve all product information corresponding to the target product.

In order to facilitate users to compare prices according to the obtained price information corresponding to the target product, in a preferred embodiment of the present invention, in a preferred embodiment of the present invention, the price comparison plug-in 3031 further includes:

The display unit 50313 is configured to display product information corresponding to the target product according to a preset display rule of product information corresponding to the target product.

The information exchange and execution process among the units in the above-mentioned device are based on the same concept as the method embodiment of the present invention, and the specific content can refer to the description in the method embodiment of the present invention, and will not be repeated here.

Embodiments of the present invention have at least the following beneficial effects:

1. Through the preset data acquisition device, database and price comparison plug-in in the terminal, the data acquisition device collects product information of each product on different shopping websites and stores it in the database. When users need to compare prices, they can use The price comparison plug-in automatically obtains the product information of the target product under the current url address in the terminal. According to the target product information and the database, all product information corresponding to the target product can be obtained, and there is no need to go to each target shopping website through a search engine to obtain the corresponding target product. Product price information; in summary, users can learn the price information of the same target product on other target shopping websites without leaving the current shopping platform, avoiding multiple page transfers and shortening the time spent in the price comparison process. Time, thereby reducing user costs and improving user experience.

2. Preset the display rules of the product information corresponding to the target product, for example, set the display rules so that all the product information corresponding to the target product is sorted by product price, and only display the product information corresponding to the target product with the lowest price. Users can choose appropriate display rules based on actual needs.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or sequence. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional same elements in the process, method, article or apparatus comprising said element.

Finally, it should be noted that the above descriptions are only preferred embodiments of the present invention, and are only used to illustrate the technical solution of the present invention, and are not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims (10)

1. obtain a method for product price information, it is characterized in that, pre-set data collector, database and rate of exchange plug-in unit is set in terminal, also comprising:

S1: gather the product information of each product in different target shopping websites by data collector and comprise product price, the whole described product information collected by described data collector stores in a database;

S2: by the product information of the target product under current uniform resource finger URL url address in rate of exchange plug-in unit automatic acquisition terminal, obtains all corresponding to the product information of described target product according to the product information of described target product and described database.

2. method according to claim 1, is characterized in that, the described data collector that utilizes gathers the product information of each product in different target shopping websites, comprising:

A1: the product details page of at least one product in each target shopping website is analyzed to arrange the data collecting rule corresponding to different target shopping websites respectively in data collector;

A2: the seed url address determining target shopping website described in each, the url address of the product details page correspondence of each product under corresponding target shopping website is obtained respectively by web crawlers technology, respectively according to url address described in each and the product information gathering all over products in target shopping website described in each corresponding to the data collecting rule of the target shopping website of this url address according to seed url address described in each.

3. method according to claim 1, is characterized in that, the described data collector that utilizes gathers the product information of each product in different target shopping websites, comprising:

Described data collector communicates with the database of each target shopping website, with the product information making described data collector directly can obtain each product respectively from the database of target shopping website described in each.

4. according to the method described in Claims 2 or 3, it is characterized in that, described the whole described product information collected to be stored in a database, comprising:

Each product information collected is cleaned and classified, and presses field after Unified coding stored in database.

5. according to the method described in claim 4, it is characterized in that, described step S2 comprises:

The relatively code of the static page that current url address is corresponding in plug-in unit automatic acquisition terminal, according to the code of described static page by DOM Document Object Model dom node analysis to obtain the product information of the target product under described static page;

Rate of exchange plug-in unit obtains all corresponding to the product information of described target product by following a kind of mode: mode one, the product information of described target product is forwarded to described data collector with make described data collector according to the product information of described target product obtain from described database all corresponding to described target product product information and whole described product informations corresponding to described target product is returned rate of exchange plug-in unit; Mode two, compare plug-in unit and according to the product information of described target product, described database is retrieved by field, retrieve all corresponding to the product information of described target product.

6. according to described method arbitrary in claim 1 to 5, it is characterized in that, in step S2, after the product information of described acquisition all corresponding to described target product, comprise further:

According to the display rule of the product information of the described target product of the correspondence pre-set, display corresponds to the product information of described target product.

7. obtain a system for product price information, it is characterized in that, comprising:

Data collector, database and terminal;

Described data collector comprises product price for gathering the product information of each product in different target shopping websites, and the whole described product information collected by described data collector stores in the database;

Described terminal comprises rate of exchange plug-in unit;

Described rate of exchange plug-in unit is used for the product information of the target product in automatic acquisition terminal under current uniform resource finger URL url address, obtains all corresponding to the product information of described target product according to the product information of described target product and described database.

8. system according to claim 7, is characterized in that,

Described data collector comprises:

Setting unit, for analyzing to arrange the data collecting rule corresponding to different target shopping websites respectively in described data collector to the product details page of at least one product in each target shopping website;

Determining unit, for determining the seed url address of each target shopping website, obtained the url address of the product details page correspondence of each product under corresponding target shopping website respectively by web crawlers according to seed url address described in each, the product information gathering all over products in each targeted website according to url address described in each and the data collecting rule of targeted website that corresponds to this url address respectively comprises product price;

First processing unit, for cleaning each product information collected and classify, and presses field stored in database after Unified coding;

Or,

Described data collector comprises: collecting unit and the second processing unit;

Described collecting unit, for communicating with the database of each target shopping website, directly obtains the product information of each product respectively from the database of each target shopping website;

Described second processing unit, for cleaning each product information collected and classify, and presses field stored in database after Unified coding.

9. according to Claim 8 described in system, it is characterized in that,

Described rate of exchange plug-in unit comprises:

First acquiring unit, for the code of static page corresponding to url address current in automatic acquisition terminal, comprise pricing information by DOM Document Object Model dom node analysis with the product information obtaining the target product under described static page according to described static page code;

Second acquisition unit, for the product information of described target product is forwarded to described data collector with make described data collector according to the product information of described target product obtain from described database all corresponding to described target product product information and whole described product informations corresponding to described target product is forwarded display unit;

Or,

Described rate of exchange plug-in unit comprises: the 3rd acquiring unit and the 4th acquiring unit;

Described 3rd acquiring unit, for the code of static page corresponding to url address current in automatic acquisition terminal, comprise pricing information by DOM Document Object Model dom node analysis with the product information obtaining the target product under described static page according to described static page code;

Described 4th acquiring unit, for retrieving by field in the database according to the product information of described target product, retrieves all corresponding to the product information of described target product.

10. system according to claim 9, is characterized in that, described rate of exchange plug-in unit also comprises:

Display unit, for the display rule of the product information according to the described target product of the correspondence pre-set, display corresponds to the product information of described target product.