CN103942307B - A kind of front end accelerated method based on picture stream - Google Patents
A kind of front end accelerated method based on picture stream Download PDFInfo
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- CN103942307B CN103942307B CN201410157372.5A CN201410157372A CN103942307B CN 103942307 B CN103942307 B CN 103942307B CN 201410157372 A CN201410157372 A CN 201410157372A CN 103942307 B CN103942307 B CN 103942307B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/957—Browsing optimisation, e.g. caching or content distillation
- G06F16/9574—Browsing optimisation, e.g. caching or content distillation of access to content, e.g. by caching
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/958—Organisation or management of web site content, e.g. publishing, maintaining pages or automatic linking
- G06F16/972—Access to data in other repository systems, e.g. legacy data or dynamic Web page generation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4782—Web browsing, e.g. WebTV
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Abstract
The invention provides a kind of front end accelerated method based on picture stream.Methods described includes：The URL request of one picture is asked to send several times, the repeatedly request comprises at least first time picture URL request and second of picture URL request, wherein first time picture URL request is the request of original image, and second of picture URL request handles the revised picture URL request of client for the URL of the original image through page data；The page data processing client is repeatedly being asked described in Background control, and the response covering for second of picture URL request is replaced into the response for first time picture URL request；Wherein, the response for first time picture URL request only includes the Part I data of picture.
Description
Technical field
The present invention relates to front end optimisation technique.
Background technology
With CDN（Content distributing network）Development is ripe all the more, and content caching and distribution network provide to Web Hosting person
More preferable service, it is more preferable, more quickly to provide website source contents to user be then the constant target of Web Hosting.
At present, web site performance is optimized frequently with front end optimisation technique.As shown in figure 1, front end optimisation technique is in rear end source
Site server adds an optimization module 101.The optimization module 101 is directed to the various resource of source station（Including HTML, CSS, JS,
Picture etc.）Acceleration, including picture compression, request merging etc. technology are optimized, server bandwidth pressure is reduced, reduces resource
Number is asked, the content size of transmission is reduced, so as to improve the experience that user browses web sites.
Front end optimisation technique can efficiently reduce the overall load time of webpage.With the development of internet, Yong Huxu
The picture of more interactive, mobilism and high definition quality is sought, such Web page maker must build bigger more complicated webpage
Using.And also the download of demand web application and the speed of service can be increasingly faster by user simultaneously, this is conflicting a pair
Demand so that front end optimization acceleration is increasingly complex and difficult, is especially embodied under the network environment of wireless domain equiband deficiency.
And existing CDN and other webpages distribution optimisation technique not can solve this conflict.
It is particularly important for those using keeping website of the user as primary and foremost purpose, the loaded and displayed speed of homepage here.With
When opening webpage using browser, browser loading busy indicator is a very important index at family.Want faster net
Page loading velocity, shortens period of reservation of number, and more intelligently streaming processization processing seems particularly significant.
The content of the invention
In order to solve the more high-quality abundant front end web page contents experience of user's request and faster webpage loaded and displayed speed
The problem of conflicting, the present invention propose a kind of accelerated method based on picture stream process.
The front end accelerated method based on picture stream includes：
The URL request of one picture is asked to send several times, the repeatedly request comprises at least first time picture URL please
Sum second of picture URL request；
The URL that page data processing client rewrites the picture is simultaneously repeatedly being asked described in Background control, will be directed to the
The response for first time picture URL request is replaced in the response covering of secondary picture URL request；
Wherein, second of picture URL request is to handle the revised picture URL request of client through the page data；
Also, the response for first time picture URL request only includes the Part I data of picture.
In one embodiment, the URL request by a picture asks to include following step the step of transmission several times
Suddenly：
Browser client initiates first time picture URL request；
Server end receives first time picture URL request and generates the response for first time picture URL request, wherein,
The URL of page data processing code is inserted in the response for first time picture URL request；
The browser client receives the response for first time picture URL request, and institute is loaded in the page
The Part I data of the corresponding picture of response are stated, while parses the page and code is handled according to inserted page data
URL sends the request of page data processing；
Server end is automatically generated at page data according to the dynamic page data-processing interface of server end configuration provides
Reason response；
Browser client parses and performs the page data processing response.
In one embodiment, page data processing response includes static page data processing code file and described
Dynamic page data-processing interface, the dynamic page data-processing interface are automatic according to the configuration information of the server end
Generation, the dynamic page data-processing interface includes the domain name that carry out second of picture URL request processing.
In one embodiment, server end receives first time picture URL request and generated and asked for first time picture URL
The step of response asked, includes：
The information that server end obtains according to the dynamic page data-processing interface come decide whether carry out picture stream at
Reason, if meeting picture stream treatment conditions, photo response is sent to picture format conversion equipment by the server end, will be schemed
Piece is converted into gradual scanning display format, and the picture after conversion is cut to generate the Part I of the picture
Data.
In one embodiment, the picture stream treatment conditions include：Whether request domain name accelerates, asks user-agency
（User-Agent）Whether support whether picture stream, request Referer are to accelerate the page.
In one embodiment, page data processing client is repeatedly being asked described in Background control, will be directed to the
The step of response for first time picture URL request is replaced in the response covering of secondary picture URL request includes：
The page data processing client is rewritten to the URL of the picture, and is initiated on backstage to server end
Second of picture URL request；
After the server receives second of picture URL request, it is the discovery that revised picture URL please through analysis
Ask, then it is second of picture URL request is corresponding with raw requests and generate the response for second of picture URL request；
The page data processing client obtains the sound for second of picture URL request that the server end returns
Should；
The page data processing client replaces the picture corresponding to the response for being directed to second of picture URL request
The picture to skip in face corresponding to for the response of first time picture URL request.
In one embodiment, the step of page data processing client is rewritten to the URL of the picture it
Before include：
Event is completed in the download that the page data processing client monitors browser client, if described download is completed
Event occurs, then the page data processing client is rewritten to the URL of the picture.
In one embodiment, the page data processing client obtains being directed to second for the server end return
After the response of picture URL request, methods described also includes：
The page data processing client will be converted into for the picture corresponding to the response of second of picture URL request
Base64 coded formats.
In one embodiment, the page data processing code is JavaScript code, the page data processing
Client is JavaScript clients.
In one embodiment, the response bag for being directed to second of picture URL request contains complete original image data.
The front end accelerated method based on picture stream of the present invention still can improve under the network environment of bandwidth deficiency
Webpage loading velocity, while the high definition quality of picture in webpage is also ensured, greatly improve customer experience.
Brief description of the drawings
The above content of the invention and following embodiment of the present invention can obtain more preferably when being read in conjunction with the figure
Understanding.It should be noted that example of the accompanying drawing only as claimed invention.In the accompanying drawings, identical reference
Represent same or similar element.
Fig. 1 shows the network optimisation techniques schematic diagram of prior art；
Fig. 2 shows the picture stream process chart according to one embodiment of the invention；
Fig. 3 A show the handling process of first time picture URL request according to an embodiment of the invention；
Fig. 3 B show the handling process of second of picture URL request according to an embodiment of the invention；And
Fig. 3 C show it is according to an embodiment of the invention please for first time picture URL request and second picture URL
The control asked and handling process.
Embodiment
The detailed features and advantage of the narration present invention, its content are enough to make any in detail in a specific embodiment below
Skilled in the art realises that the technology contents of the present invention and implement according to this, and specification according to disclosed by this specification, weigh
Profit requires and accompanying drawing, skilled person readily understands that purpose and advantage that the present invention is related.
The method that the picture stream process distribution method of the present invention provides the processing of picture layer-stepping and response.On the one hand, it is clear
Looking at device end need not wait that all full picture data needed for web page contents to be shown transmit and loaded and displayed is complete, but only that
A part of crucial picture data content, is just sufficient for the interaction demand of user's next step, can in such user's impression
A faster browser loading experience is obtained, shortens the stand-by period.On the other hand, complete image quality data is then on backstage
Continue to download, until last picture is shown clearly.
Picture method for stream processing provides a kind of special picture conversion equipment simultaneously, can turn the picture of JPEG types
Turn to gradual scanning display format, i.e. progressive jpeg forms.Using the gradual side of JPEG picture form one
Picture is supported to carry out Layering manifestation in face；On the other hand it ensure that the gradual scanning of picture shows process.
Technical scheme is mainly implemented in terms of following two：
（1）Cloud server carrys out control process and comes from client（For example, browser）Picture request.One picture
URL（URL）Ask at twice.Request is the original URL request of the page for the first time, and server processing requests are simultaneously
Respond the crucial a part of data of picture；Second of request handles client by page data（For example, JavaScript client
End, abbreviation JS clients）Original URL is rewritten in control, and server processing requests simultaneously respond the complete qualitative data of picture.
（2）Need to carry out the picture URL of picture Stream Processing in the page data processing client analyzing web page page and protect
Deposit, event is completed in the download for then monitoring browser window（That is load events）If load events occur, show that the page closes
Key data loading terminates, and backstage XHR (XmlHttpRequest) requests are initiated in then control --- original image URL is rewritten, so
Request is initiated afterwards.
Picture in Webpage only needs a part of content can of its complete response tentatively to show, so subtracts
Lack the data volume that loading page needs transmit, accelerate page loading velocity.Browser indicates page loaded, Ran Hou
Backstage, which initiates second, asks, and obtains full picture response.Page data processing client obtains full picture and responds and cover
Obtained part photo response is asked for the first time.The display effect of page pictures becomes more complete clear.
It is pointed out that JS referred to herein represents JavaScript.In addition, present invention can apply to
JavaScript language environment, but other language codes environment that can carry out page data processing can also be applied to.
Fig. 2 shows the picture stream process chart according to one embodiment of the invention.In order to control picture ask, it is necessary to
One section of page data processing code of insertion in the page.In one embodiment, page data processing code includes, but unlimited
In JavaScript code, i.e. JS codes.Page data handle client and cloud server interaction, control picture request and
Processing response.In one embodiment, page data processing client can be JavaScript clients, i.e. JS clients.
Using external connection JS codes, a URL is provided for JS codes.Server end（That is high in the clouds）According to different clients demand, control insertion
JS codes.JS codes automatically generate according to the interface of service end configuration provides.Different clients is distinguished, interface section includes to enter
The domain name of row picture secondary request processing.Browser gets the page, parses JS codes and performs.JS clients analyze webpage page
The content in face, and page load events are monitored, secondary request, and the full picture data cover that control data obtains are initiated in control
Part image data.The flow chart according to Fig. 2 is progressively illustrated below.
In step 201, in browser client address field input page URL.
In step 202, browser initiates HTTP request according to the page URL of input.
In step 203, server end receives HTTP request, and handles the request and produce response.In one embodiment
In, the response can be an index pages.Wherein, the processing includes analysis configuration and inserts a line in the index pages of response
<script>Code（JS codes）, the URL of an addressable JavaScript code is included in the code（Referring to step
204）.
In step 205, server end returns to this and responds to browser.
In step 206, browser end obtains the response about index pages, parses HTML and initiates JS requests.
In step 207, service end reads JS requests, obtains the static JS files in high in the clouds, determines DYNAMIC J S interfaces, from
Dynamic generation JS responses.In one embodiment, JS responses include static JS files and DYNAMIC J S interfaces.The static JS files it is interior
Appearance includes parsing page situation, collects page URL, initiates the action such as request.DYNAMIC J S interfaces are then related to which is specifically collected
URL, which kind of request etc. initiated.Specifically, server end reads high in the clouds configuration（For example, which picture needs to carry out in the page
The configuration informations such as processing）, automatic dynamic generates the JS interface sections as communication interface, and combines the static JS files, together
Responded as the JS for being sent to client.
In a step 208, send JS and respond to client.
In step 209, browser client receives JS client end responses and performed.
Fig. 3 shows the flow chart of whole picture stream process according to an embodiment of the invention and distribution method.If meet
Required condition, picture stream function are opened, then picture URL request will be divided into twice, be once the original URL of the picture
Request, once correspond to raw requests XHR request.The response that Twice requests obtain forms the loading of a picture is complete
It has been shown that, and by the display for responding covering and replacing request for the first time of second of request of JS clients control.Fig. 3 A, Fig. 3 B, Fig. 3 C
Each specific steps are shown respectively and are described as follows.
Fig. 3 A show the handling process of first time picture URL request according to an embodiment of the invention.
In step 311, browser client initiates first time picture URL request.The first time picture URL request is page
Original picture URL request in face.
In step 312, server end receives the first time picture URL request and gets response.
In step 313, server end is according to being locally configured message（That is the configuration of server end）To decide whether to carry out
Whether picture stream process, including request domain name accelerate, ask whether User-Agent support picture stream, request Referer
It is to accelerate the page.
In a step 314, if all meeting the condition of picture stream requirement, then photo response is sent into picture format and turned
Changing device.Picture format conversion equipment changes into picture gradual scanning display format, i.e. progressive jpeg lattice
Formula.
In step 315, the picture of acquisition is carried out Slice by slice cutting by server end, and wherein picture is divided into multiple portions
Point.Server obtains the Part I data in the picture after cutting, i.e., part response before picture, and updates response and disappear
Breath.
In step 316, server end sends the response for the first time picture URL request.
Fig. 3 B show the handling process of second of picture URL request according to an embodiment of the invention.
In step 321, the JS clients that browser performs initiate the XHR requests of the revised pictures of URL, i.e., for the second time
Picture URL request.
In step 322, server end receives the request, finds that the request is that revised picture XHR please by analysis
Ask.
In step 323, server end is by the request and raw requests（First time picture URL request）Correspond to and get
Response.
In step 324, picture is passed to format conversion apparatus and obtains progressive jpeg pictures by server end.
In step 325, complete response is sent.
Fig. 3 C show JS clients according to an embodiment of the invention for first time picture URL request and second
The control of picture URL request and handling process.
In step 331, in browser client, browser initiates the picture raw requests in the page（Scheme for the first time
Piece URL request）, JS clients analysis the page in all picture URL to be accelerated.
In step 332, browser obtains the Picture section that service end is sent and responded, i.e., in the picture after foregoing cutting
Part I data.
In step 333, browser loads and renders the display Part I picture in the page.Add Deng Part I picture
After load, browser window load events are triggered.
In step 334, JS clients are rewritten according to the picture URL collected and surveyed from JS interfaces, that is, are rewritten original
The URL of picture.Then the XHR for initiating to rewrite original image URL on backstage is asked（That is second of picture URL request）.
In step 335, browser obtains complete response（That is complete image data）, JS clients convert photo response
For base64 coded formats.
In step 336, the picture that JS clients encode base64 replaces picture corresponding to original URL in the page.
So far, the flow of whole picture stream process terminates.
Here the term and form of presentation used is only intended to describe, and the present invention should not be limited to these terms and table
State.It is not meant to exclude the equivalent features of any signal and description (or which part) using these terms and statement, should recognizes
Knowing various modifications that may be present should also include within the scope of the claims.Other modifications, variations and alternatives also likely to be present.
Accordingly, claim should be regarded as covering all these equivalents.
Equally, it should be pointed out that although the present invention describes with reference to current specific embodiment, this technology neck
Those of ordinary skill in domain is it should be appreciated that the embodiment of the above is intended merely to the explanation present invention, without departing from the present invention
Various equivalent change or replacement can be also made in the case of spirit, therefore, as long as right in the spirit of the present invention
The change, modification of above-described embodiment will all fall in the range of following claims.
Claims (9)
1. a kind of front end accelerated method based on picture stream, it is characterised in that methods described includes：
The URL request of one picture is asked to send several times, it is described repeatedly request comprise at least first time picture URL request and
Second of picture URL request, wherein first time picture URL request are the request of original image, and second of picture URL request is institute
The URL for stating original image handles the revised picture URL request of client through page data；
The page data processing client is repeatedly being asked described in Background control, by for the sound of second of picture URL request
The response replaced for first time picture URL request should be covered；
Wherein, the response for first time picture URL request only includes the Part I data of picture；
Wherein, the page data processing client is repeatedly being asked described in Background control, will be directed to second of picture URL request
Response covering replace for first time picture URL request response the step of include：
The page data processing client is rewritten to the URL of the picture, and initiates second to server end on backstage
Secondary picture URL request；
After the server receives second of picture URL request, revised picture URL request is the discovery that through analysis, then
Second of picture URL request is corresponding with raw requests and generate the response for second of picture URL request；
The page data processing client obtains the response for second of picture URL request that the server end returns；
Picture corresponding to the response for being directed to second of picture URL request is replaced page by the page data processing client
The picture corresponding to the response of first time picture URL request is directed in face.
2. the method as described in claim 1, it is characterised in that the URL request by a picture asks to send several times
The step of include：
Browser client initiates first time picture URL request；
Server end receives first time picture URL request and generates the response for first time picture URL request, wherein, in pin
The URL of page data processing code is inserted in response to first time picture URL request；
The browser client receives the response for first time picture URL request, and the sound is loaded in the page
The Part I data of picture that should be corresponding, while parse the page and the URL hairs of code are handled according to inserted page data
The request for sending page data to handle；
Server end automatically generates page data processing according to the dynamic page data-processing interface of server end configuration provides and rung
Should；
Browser client parses and performs the page data processing response.
3. method as claimed in claim 2, it is characterised in that the page data processing response is included at static page data
It is according to the server to manage code file and the dynamic page data-processing interface, the dynamic page data-processing interface
What the configuration information at end automatically generated, the dynamic page data-processing interface is included and carried out at second of picture URL request
The domain name of reason.
4. method as claimed in claim 3, it is characterised in that server end receives first time picture URL request and generates pin
The step of response to first time picture URL request, includes：
The information that server end obtains according to the dynamic page data-processing interface come decide whether carry out picture stream process, such as
Fruit meets picture stream treatment conditions, then photo response is sent to picture format conversion equipment by the server end, and picture is turned
Change gradual scanning display format into, and the picture after conversion is cut to generate the Part I number of the picture
According to.
5. method as claimed in claim 4, it is characterised in that the picture stream treatment conditions include：Whether request domain name adds
Whether speed, request user-agency (User-Agent) support whether picture stream, request Referer are to accelerate the page.
6. the method as described in claim 1, it is characterised in that URL of the page data processing client to the picture
Include before the step of being rewritten：
Event is completed in the download that the page data processing client monitors browser client, if the download completion event
Occur, then the page data processing client is rewritten to the URL of the picture.
7. the method as described in claim 1, it is characterised in that the page data processing client obtains the server end
After the response for second of picture URL request returned, methods described also includes：
The page data processing client will be converted into for the picture corresponding to the response of second of picture URL request
Base64 coded formats.
8. method as claimed in claim 2, it is characterised in that the page data processing code is JavaScript code,
The page data processing client is JavaScript clients.
9. the method as described in claim 1, it is characterised in that the response bag for being directed to second of picture URL request has contained
Whole original image data.
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| CN104954813B (en) * | 2014-09-15 | 2017-06-06 | 深圳市腾讯计算机系统有限公司 | The transmission method of picture, device and system |
| CN105183883B (en) * | 2015-09-23 | 2019-07-09 | 北京奇虎科技有限公司 | Page loading method and device |
| CN105975485A (en) * | 2016-04-25 | 2016-09-28 | 乐视控股（北京）有限公司 | Method for accessing CDN by terminal, CDN and terminal |
| CN107436879A (en) * | 2016-05-25 | 2017-12-05 | 广州市动景计算机科技有限公司 | The loading method and loading system of a kind of dynamic picture |
| CN108932277B (en) * | 2018-04-25 | 2021-02-05 | 网宿科技股份有限公司 | Webpage loading method, webpage loading system and server |
| CN110032416A (en) * | 2019-04-15 | 2019-07-19 | 维沃移动通信有限公司 | A kind of terminal remote control method and terminal |
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