CN109657117A - A kind of extraction method, system and the computer storage medium of webpage element - Google Patents
A kind of extraction method, system and the computer storage medium of webpage element Download PDFInfo
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- CN109657117A CN109657117A CN201811341252.5A CN201811341252A CN109657117A CN 109657117 A CN109657117 A CN 109657117A CN 201811341252 A CN201811341252 A CN 201811341252A CN 109657117 A CN109657117 A CN 109657117A
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Abstract
The present invention provides extraction method, system and the computer storage medium of a kind of webpage element, this method comprises: extracting the URL of the webpage based on browser plug-in, obtains crawler collection rule library and website column set；Judge that the website column is integrated into crawler collection rule library with the presence or absence of extracting rule, if extracting the element of the webpage there are the extracting rule of the website column set in crawler collection rule library；Judge whether the element of the webpage extracts success, by the fills of extraction to corresponding text filed if the success of the elements recognition of the webpage.According to the method for the present invention, system and computer storage medium can increase accuracy, flexibility, the ease for use for extracting webpage element and screenshot, consult collecting web page information for information editing personnel and provide good technical support.
Description
Technical field
This application involves field of computer technology, the in particular to method and system of web data processing.
Background technique
So far, website is many kinds of for internet development, and the webpage load type-setting mode of different web sites is all kinds of, same
The webpage load type-setting mode of website difference column may also be different.These differentiation are being mentioned to site information editorial staff
When taking the element informations such as title, content, post staff, the issuing time of webpage and carrying out webpage capture, inconvenience is brought,
Duplication can only be carried out to be pasted onto plus the manual mode of screenshot tool is assisted to carry out cumbersome repetitive operation.
The cumbersome problem hand-manipulated that webpage element and screenshot are extracted for single-page, also there is corresponding technological means at present
Go aid in treatment, for example, using crawler collection mechanism automatic collection webpage element and simulation browser behavior load Webpage into
The technological means of row screenshot is realized.However at present this technological means there is also some problems, require further improvement with it is complete
It is kind.For example encounter and need to log in the website that could be accessed, then the element of acquisition webpage and screenshot just will fail.Simulation browser
It is incomplete that behavior load webpage capture can also have a load of screenshot page info, can not flexible named web page screenshot area.Simultaneously
Each site pages elements recognition is carried out by crawler collection rule merely, maintenance cost is high.The quality of extraction is also and collection rule
O&M have very big dependence.Webpage capture is carried out especially for webpage simulation browser behavior, can be asked due to network etc.
Often there is screenshot and cuts operation that is incomplete, nor can carrying out screenshot influence client on the specific region of webpage in topic.
Summary of the invention
The present invention is proposed in view of the above problem.The present invention provides a kind of extraction method of webpage element,
System and computer storage medium, to solve to carry out net by crawler automatic collection webpage key technologies and simulation browser behavior
Webpage element information existing for page screenshot technology extracts incomplete and webpage capture failure problem.
According to an aspect of the present invention, a kind of extraction method of webpage element is provided, which comprises
The URL of the webpage is extracted based on browser plug-in, obtains crawler collection rule library and website column set；
Judge that the website column is integrated into crawler collection rule library with the presence or absence of extracting rule, if the crawler is adopted
Collect in rule base there are the extracting rule of the website column set, then extracts the element of the webpage；If the crawler is adopted
Collect the extracting rule that the website column set is not present in rule base, then chooses the information content mark in specified region according to user
It is shown as webpage element, and forms corresponding extracting rule；And/or extraction of the O&M treatment people in O&M processing to failure
Rule carries out secondary treatment；
Judge whether the element of the webpage extracts success, it will be in extraction if the success of the elements recognition of the webpage
Appearance is filled into corresponding text filed.
Illustratively, the acquisition crawler collection rule library and website column set include:
Extraction rear end crawler collection rule bank interface is called after carrying out URLEncode coding to the URL of the webpage；
When the parameter for the URL that the extraction rear end crawler collection rule bank interface receives the webpage then carries out
URLDecode decoding, and secondary treatment is done to the URL of the webpage, corresponding website column set is matched in slave site library.
Illustratively, the element for extracting the webpage includes: to return to the extracting rule of corresponding webpage to the browsing
Device plug-in unit, the browser plug-in extract the element of the webpage using the extracting rule.
Illustratively, the element for extracting the webpage is extracted using Xpath.
Illustratively, the method also includes: if the elements recognition of the webpage is unsuccessful, by corresponding browser
Plug-in unit rule is stored in crawler collection rule and extracts failure library；And/or
It chooses the information content in specified region to be denoted as webpage element according to user, and forms corresponding extracting rule.
Illustratively, the method also includes:
After corresponding browser plug-in rule deposit crawler collection rule is extracted failure library, O&M treatment people is in O&M
Secondary treatment is carried out to the extracting rule of failure in processing.
Illustratively, the method also includes:
Corresponding extracting rule is formed using choosing the information content in specified region to be denoted as webpage element according to user,
And/or
O&M treatment people, to the rule after the extracting rule progress secondary treatment of failure, updates institute in O&M processing
State crawler collection rule library.
Illustratively, the method also includes: by the fills of extraction to it is corresponding it is text filed after, based on browsing
The Web page screen-cutting interface of device carries out secondary encapsulation to webpage capture.
Illustratively, the method also includes: store the extraction the webpage element and/or the webpage capture.
According to a further aspect of the invention, a kind of automatic extracting system of webpage element, including memory, processor are provided
And it is stored in the computer program run on the memory and on the processor, the processor executes the computer
The step of above method is realized when program.
According to a further aspect of the invention, a kind of computer storage medium is provided, computer program is stored thereon with, it is special
The step of sign is, the above method is realized when the computer program is computer-executed.
Extraction method, system and the computer storage medium of webpage element according to an embodiment of the present invention, by clear
The webpage extracting rule that the open interface standard of device of looking at and crawler acquisition are shared is to realize that webpage element is automatically extracted and made by oneself
Adopted webpage capture increases accuracy, flexibility, the ease for use for extracting webpage element and screenshot, consults for information editing personnel
Collecting web page information provides good technical support；User can also be allowed to participate in crawler while user-friendly simultaneously
The O&M in collection rule library forms benign cycle.
Detailed description of the invention
The embodiment of the present invention is described in more detail in conjunction with the accompanying drawings, the above and other purposes of the present invention,
Feature and advantage will be apparent.Attached drawing is used to provide to further understand the embodiment of the present invention, and constitutes explanation
A part of book, is used to explain the present invention together with the embodiment of the present invention, is not construed as limiting the invention.In the accompanying drawings,
Identical reference label typically represents same parts or step.
Fig. 1 is for realizing a kind of exemplary flow of the extraction method of webpage element according to an embodiment of the present invention
Figure；
Fig. 2 is for realizing a kind of exemplary signal stream of the extraction method of webpage element according to an embodiment of the present invention
Cheng Tu.
Specific embodiment
In order to enable the object, technical solutions and advantages of the present invention become apparent, root is described in detail below with reference to accompanying drawings
According to example embodiments of the present invention.Obviously, described embodiment is only a part of the embodiments of the present invention, rather than this hair
Bright whole embodiments, it should be appreciated that the present invention is not limited by example embodiment described herein.Based on described in the present invention
The embodiment of the present invention, those skilled in the art's obtained all other embodiment in the case where not making the creative labor
It should all fall under the scope of the present invention.
Firstly, being described with reference to Figure 1 a kind of signal of the extraction method of webpage element for the embodiment of the present invention
Flow chart, the method 100 include:
Firstly, in step 110, the URL of the webpage is extracted based on browser plug-in, obtain crawler collection rule library and
Website column set；
In the step 120, judge that the website column is integrated into crawler collection rule library with the presence or absence of extracting rule, such as
There are the extracting rule of the website column set in crawler collection rule library described in fruit, then the element of the webpage is extracted；Such as
The extracting rule of the website column set is not present in crawler collection rule library described in fruit, then specified region is chosen according to user
The information content be denoted as webpage element, and form corresponding extracting rule；And/or O&M treatment people is in O&M processing
Secondary treatment is carried out to the extracting rule of failure；
In step 130, judge whether the element of the webpage extracts success, if the elements recognition success of the webpage
Then by the fills of extraction to corresponding text filed.
The method provided according to the present invention, can intelligent of webpage elements recognition more rules to same website difference column
The problem of matching, solve traditional crawler extracting rule, 1 extracting rule is usually only applicable under same website or website column,
Collecting web page information is consulted for information editing personnel, and good technical support is provided.In addition, by the fills of extraction to correspondence
Text filed provide the basis of good secondary edit operation for user.
According to embodiments of the present invention, step S110 may further include: the acquisition crawler collection rule library and website
Column set includes:
Extraction rear end crawler collection rule bank interface is called after carrying out URLEncode coding to the URL of the webpage；
When the parameter for the URL that the extraction rear end crawler collection rule bank interface receives the webpage then carries out
URLDecode decoding, and secondary treatment is done to the URL of the webpage, corresponding website column set is matched in slave site library.
Illustratively, the element for extracting the webpage includes: to return to the extracting rule of corresponding webpage to the browsing
Device plug-in unit, the browser plug-in extract the element of the webpage using the extracting rule.
Illustratively, the element for extracting the webpage is extracted using Xpath.Wherein, webpage element is automatically extracted
Rule use xpath rule base, the rule base which can acquire with crawler be shared public, avoid webpage element and mention
Take the repetition attended operation of rule.
According to embodiments of the present invention, step S130 may further include: if the elements recognition of the webpage is unsuccessful,
Corresponding browser plug-in rule deposit crawler collection rule is then extracted into failure library；And/or
It chooses the information content in specified region to be denoted as webpage element according to user, and forms corresponding extracting rule.
Illustratively, step S130 may further include:
After corresponding browser plug-in rule deposit crawler collection rule is extracted failure library, O&M treatment people is in O&M
Secondary treatment is carried out to the extracting rule of failure in processing.
According to embodiments of the present invention, the method 100 can further include:
Corresponding extracting rule is formed using choosing the information content in specified region to be denoted as webpage element according to user,
And/or
O&M treatment people, to the rule after the extracting rule progress secondary treatment of failure, updates institute in O&M processing
State crawler collection rule library.
It follows that using the anti-more regular library of rule of webpage elements recognition failure, i.e., when user extracts the specified of webpage
Element failure, can directly choose the element of the page to be indicated, the factor content of mark can be filled into corresponding text automatically
In frame, while the mark instead can more return rule base, when extracting the webpage under column again, can be achieved with automatically extracting, thus
It realizes benign cycle, decreases the maintenance work of crawler plug-in unit rule base.Likewise, the regular meeting after being handled using O&M
Again crawler collection rule library is updated, extracts and uses for the acquisition of subsequent crawler and browser plug-in, user-friendly
User can also be allowed to participate in the O&M in crawler collection rule library simultaneously, form benign cycle.
According to embodiments of the present invention, the method 100 can further include: by the fills of extraction to corresponding
After text filed, the Web page screen-cutting interface based on browser carries out secondary encapsulation to webpage capture.Webpage may be implemented in this way
Full screen printscreen, specified region screenshot etc., improve the ease for use of user.
According to embodiments of the present invention, the method 100 can further include: the webpage for storing the extraction is wanted
The plain and/or described screenshot content.
So according to the above method, can be selected by the full frame interception of webpage or for the partial region content of webpage
The interception storage of selecting property saves, and for the secondary treatment of follow-up data, increases the accuracy, flexibly for extracting webpage element and screenshot
Property, ease for use.
The exemplary signal of extraction method referring to attached drawing 2, based on specific example to webpage element of the invention
Flow chart is illustrated.Specific implementation step described herein as explaining only the invention, not limitation of the invention.
Firstly, browser plug-in extracts the URL of browser loading page, while URLEncode coding is carried out to page URL
It calls afterwards and extracts rear end crawler collection rule bank interface.Wherein, crawler collection rule inventory puts crawler acquisition and browser plug-in
The shared extracting rule used provides and extracts rear end crawler collection rule bank interface.
Then, URLDecode decoding is carried out when extracting rear end crawler collection rule bank interface and receiving URL parameter, together
When secondary treatment is done to URL, corresponding website column list collection is matched in slave site library.
In next step, when website, column is integrated into crawler collection rule library that there are extracting rules, then returns to corresponding webpage and mention
Take rules column tabular value to browser plug-in, browser plug-in utilizes the extracting rule " // * [id of extracting rule set such as content
=" main-content "] ", " // * [@id=" sub-frame-error-details "] " extracts each net using Xpath
The information of page element；
When website, column, which is integrated into crawler collection rule library, is not present extracting rule, then user can choose specified region
The information content be denoted as webpage element, program can the corresponding Xpath rule of automatic arranging, while the content for indicating element also can
Automatically it is filled into text filed；And/or O&M treatment people does the rule of Rule Extraction failure in it can be handled with O&M
Secondary treatment；
Next according to the arrangement rule of the webpage element and/or O&M treated Policy Updates crawler collection rule
Library.
As a next step it is determined that whether the element that Xpath extracts webpage succeeds.
When browser plug-in uses the element success of Xpath extraction webpage, the then fills extracted to corresponding text
Region carries out secondary edit operation for user；
When the element that browser plug-in extracts webpage using Xpath is unsuccessful, then user can choose the letter in specified region
Breath content is denoted as webpage element, the corresponding Xpath rule of program meeting automatic arranging, while the content for indicating element also can be automatic
It is filled into text filed；And/or corresponding plug-in unit rule can enter crawler collection rule and extract failure library, be used for subsequent place
Reason；
Then, the rule that the webpage element that program is chosen according to user arranges counter can update crawler collection rule library, from
And it is used for crawler or plug-in unit subsequent extracted；And/or O&M treatment people fails to Rule Extraction in it can be handled with O&M
Rule do secondary treatment, and the rule after O&M processing can update again can crawler collection rule library, be subsequent crawler
Acquisition and browser plug-in, which extract, to be used.
In next step, webpage capture carries out secondary encapsulation in the Web page screen-cutting interface basis that browser provides, and has supported net
The full screen printscreen of page, specified region screenshot etc., improve the ease for use of user.
Finally, webpage element and screenshot content that storage is extracted, the secondary treatment for follow-up data.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
According to another aspect of the present invention, a kind of automatic extracting system of webpage element is provided, including storage device and
Processor；
In extraction method of the storage device storage for realizing webpage element according to an embodiment of the present invention
The program code of corresponding steps；
The processor is for running the program code stored in the storage device, to execute above according to of the invention real
Apply the corresponding steps of the extraction method of the webpage element of example.
In one embodiment, it executes when said program code is run by the processor and implements above according to the present invention
The corresponding steps for the method for the aforementioned webpage element of example automatically extracted.
In addition, according to embodiments of the present invention, additionally providing a kind of storage medium, storing program on said storage
Instruction, when described program instruction is run by computer or processor for execute the embodiment of the present invention webpage element it is automatic
The corresponding steps of extraction, and for realizing the automatic extracting system of webpage element according to an embodiment of the present invention.The storage
Medium for example may include the storage card of smart phone, the storage unit of tablet computer, the hard disk of personal computer, read-only storage
Device (ROM), Erasable Programmable Read Only Memory EPROM (EPROM), portable compact disc read-only memory (CD-ROM), USB storage
Any combination of device or above-mentioned storage medium.The computer readable storage medium can be one or more computers can
Any combination of storage medium is read, such as a computer readable storage medium includes for being randomly generated action command sequence
Computer-readable program code, another computer readable storage medium includes based on recommendation by carrying out lteral data
The readable program code of calculation machine.
In one embodiment, the computer program instructions may be implemented real according to the present invention when being run by computer
Apply the extraction method of the webpage element of example.
Although describing example embodiment by reference to attached drawing here, it should be understood that above example embodiment are only exemplary
, and be not intended to limit the scope of the invention to this.Those of ordinary skill in the art can carry out various changes wherein
And modification, it is made without departing from the scope of the present invention and spiritual.All such changes and modifications are intended to be included in appended claims
Within required the scope of the present invention.
The above description is merely a specific embodiment or to the explanation of specific embodiment, protection of the invention
Range is not limited thereto, and anyone skilled in the art in the technical scope disclosed by the present invention, can be easily
Expect change or replacement, should be covered by the protection scope of the present invention.Protection scope of the present invention should be with claim
Subject to protection scope.
Claims (11)
1. a kind of extraction method of webpage element, which is characterized in that the described method includes:
The URL of the webpage is extracted based on browser plug-in, obtains crawler collection rule library and website column set；
Judge that the website column is integrated into crawler collection rule library with the presence or absence of extracting rule, if crawler acquisition rule
Then the element of the webpage is then extracted there are the extracting rule of the website column set in library；If the crawler acquisition rule
The extracting rule of the website column set is then not present in library, then chooses the information content in specified region to be denoted as according to user
Webpage element, and form corresponding extracting rule；And/or O&M treatment people O&M processing in failure extracting rule
Carry out secondary treatment；
Judge whether the element of the webpage extracts success, fills out the content of extraction if the success of the elements recognition of the webpage
It is charged to corresponding text filed.
2. the method as described in claim 1, which is characterized in that the acquisition crawler collection rule library and website column set packet
It includes:
Extraction rear end crawler collection rule bank interface is called after carrying out URLEncode coding to the URL of the webpage；
When the parameter for the URL that the extraction rear end crawler collection rule bank interface receives the webpage then carries out URLDecode
Decoding, and secondary treatment is done to the URL of the webpage, corresponding website column set is matched in slave site library.
3. method according to claim 2, which is characterized in that the element for extracting the webpage includes: to return to corresponding net
For the extracting rule of page to the browser plug-in, the browser plug-in extracts wanting for the webpage using the extracting rule
Element.
4. method as claimed in claim 3, which is characterized in that the element for extracting the webpage is extracted using Xpath.
5. the method as described in claim 1, which is characterized in that the method also includes: if the elements recognition of the webpage
It is unsuccessful, then corresponding browser plug-in rule deposit crawler collection rule is extracted into failure library；And/or
It chooses the information content in specified region to be denoted as webpage element according to user, and forms corresponding extracting rule.
6. method as claimed in claim 5, which is characterized in that the method also includes:
After corresponding browser plug-in rule deposit crawler collection rule is extracted failure library, O&M treatment people is in O&M processing
In to failure extracting rule carry out secondary treatment.
7. such as method as claimed in any one of claims 1 to 6, which is characterized in that the method also includes:
Corresponding extracting rule is formed using choosing the information content in specified region to be denoted as webpage element according to user, and/
Or,
O&M treatment people secondary treatment is carried out to the extracting rule of failure in O&M processing after rule, climb described in update
Worm collection rule library.
8. the method as described in claim 1, which is characterized in that the method also includes: by the fills of extraction to correspondence
It is text filed after, the Web page screen-cutting interface based on browser to webpage capture carry out secondary encapsulation.
9. method according to claim 8, which is characterized in that the method also includes: store the webpage of the extraction
Element and/or the webpage capture.
10. a kind of automatic extracting system of webpage element, including memory, processor and it is stored on the memory and in institute
State the computer program run on processor, which is characterized in that the processor realizes right when executing the computer program
It is required that the step of any one of 1 to 9 the method.
11. a kind of computer storage medium, is stored thereon with computer program, which is characterized in that the computer program is counted
The step of calculation machine realizes any one of claims 1 to 9 the method when executing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811341252.5A CN109657117A (en) | 2018-11-12 | 2018-11-12 | A kind of extraction method, system and the computer storage medium of webpage element |
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| CN201811341252.5A CN109657117A (en) | 2018-11-12 | 2018-11-12 | A kind of extraction method, system and the computer storage medium of webpage element |
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| CN201811341252.5A Pending CN109657117A (en) | 2018-11-12 | 2018-11-12 | A kind of extraction method, system and the computer storage medium of webpage element |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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