CN105069058B - Network map for high frequency interactive environment requests fast response method - Google Patents
Network map for high frequency interactive environment requests fast response method Download PDFInfo
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- CN105069058B CN105069058B CN201510445959.0A CN201510445959A CN105069058B CN 105069058 B CN105069058 B CN 105069058B CN 201510445959 A CN201510445959 A CN 201510445959A CN 105069058 B CN105069058 B CN 105069058B
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- network map
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
Abstract
The invention discloses a kind of network maps for high frequency interactive environment to request fast response method, and this approach includes the following steps：Initialize browser map display window；Obtain the maximum network connection number c of browser；It creates and starts c network map request queue processing thread；Calculate the map image number t for needing to render in network map window；Network map request is added to the end of network map request queue；The network map not loaded request is selected from network map request queue；Send network map image request；Network map image state is set for stress state, and shows map image.The present invention can be according to browser to the number of the limitation control network map concurrent request of number of network connections, and can automatic rejection it is invalid network map request, adapt to the fast browsing of high frequency interactive environment lower network map, especially under low-bandwidth network environment, the quick response of the network map request under high frequency interactive environment can be realized.
Description
Technical field
The present invention relates to hiperspace computing techniques more particularly to a kind of network map for high frequency interactive environment to ask
Seek fast response method.
Background technique
The quick response of high frequency interactive environment lower network such map requests is one of the problem for needing to solve in WebGIS, especially
It is under low broadband network environment, the response speed of network map request directly affects progress map view operation in a browser
User experience.Major browsers are all restricted to the map image concurrent request number under same domain name at present, in order to improve ground
Figure image concurrent request number, reduces network map request response time, and the mapping service providers such as Google, Baidu, day map are equal
8 domain names are used to increase the concurrent request number of browser, but under high frequency interactive environment, a large amount of network map image is asked
Asking still cannot quickly be responded, and especially in low-bandwidth network environment, the page response time can be longer, it is difficult to meet
The demand of user, a large amount of invalid network map requests are sent to server end, waste valuable bandwidth resources；Another party
Face, increasing domain name not only will increase the complexity of network map client realization, but also at high cost, difficult in maintenance, access multiple
Domain name can also additionally increase the time overhead of domain name mapping.
Summary of the invention
The technical problem to be solved in the present invention is that for the defects in the prior art, providing a kind of for high frequency interaction ring
The network map in border requests fast response method.
The technical solution adopted by the present invention to solve the technical problems is：A kind of network map for high frequency interactive environment
Fast response method is requested, is included the following steps：
Step 1) initializes browser map display window, and the pixels tall and pixel wide of network map window is arranged；
The maximum network connection number c of step 2) acquisition browser；
Step 3) creates and starts c network map request queue processing thread；
Step 4) calculates according to the pixels tall and pixel wide of network map window and needs to render in network map window
Map image number t；
Step 5) creates network map request queue；
Step 6) circulation creation network map Image control, is rendered using blank image；
The status attribute that network map image is arranged in step 7) is unloaded state；
Step 8) judges whether the length of network map request queue is less than t, if it is, network map is requested to be added
To the end of network map request queue；If not, deleting the first item in network map request queue, then network map is asked
Ask the end for being added to network map request queue；
Step 9) network map request queue handles thread loops and calculates in network map request queue in stress state
Network map number of request u, judge whether u is less than c, if it is, entering step 10)；If it is not, then repeating step 9) again
Calculate u；
Step 10) selects the network map not loaded request from network map request queue；
The state that the network map request selected is arranged in step 11) is stress state；
Step 12) sends network map image request；
Step 13) request is completed, and setting network map image state is stress state, and shows map image.
According to the above scheme, map image number t, t=(the w/pw+1) (h/ for needing to render in the network map window
ph+1)；
Wherein, h is the pixels tall of network map window, and w is the pixel wide of network map window, and ph is single map
The pixels tall of image, pw are the pixel wide of single map image.
According to the above scheme, the network map request for selecting state in the step 10) not load is to select in order.
The beneficial effect comprise that：The method of the present invention can control the quantity of network map request, automatically pick
Except invalid network map is requested, the quick response of high frequency interactive environment lower network such map requests is realized, save valuable bandwidth
Resource especially contributes to promote low strap wide screen to support the Map Service of Network performance boost of high concurrent to provide technical support
The capability of fast response of network environment lower network Map Services.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the method flow diagram of the embodiment of the present invention；
Fig. 2 is method flow diagram of the present invention by taking network map request quick response in Chrome browser as an example.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The fixed present invention.
As shown in Figure 1, a kind of high frequency interactive environment lower network such map requests fast response method, includes the following steps：
Step 1) initializes browser map display window, and the pixels tall h and picture of network map visualization window is arranged
Plain width w；
The maximum network connection number c of step 2) acquisition browser；
Step 3) calls the setInterval function creation in javascript and starts c network map request queue
Handle thread；
Step 4) calculates needs in map window according to the pixels tall ph and pixel wide pw of w, h and single map image
The map image number (t) of rendering, wherein t=(w/pw+1) (h/ph+1)；
Step 5) utilizes Array class new Array, creates network map request queue；
Step 6) circulation creation network map Image control, renders it using blank image；
The status attribute of step 7) setting network map image is not load (unload) state；
Step 8) judges whether the length of network map request queue is less than t, if it is, network map is requested to be added
Into network map request queue；If it is not, then entering step 9)；
Step 9) deletes the first item in network map request queue, then network map request is added to network map and is asked
Ask the end in queue；
Step 10) network map request queue handles thread loops and calculates in network map request queue in stress state
The network map number of request (u) of (i.e. status attribute is loading), judges whether u is less than c, if it is, entering step
11)；If it is not, then repeating step 10) recalculates u；
Step 11) selects a status attribute to request for the network map of unload from network map request queue；
The status attribute of the network map request selected is arranged to load (loading) state in step 12)；
Step 13) sends network map image request；
Step 14) request is completed, and the status attribute of setting network map image is to have loaded (loaded) state, and show
Pictorial map image, when the status attribute of all-network map image is loaded, processing terminate for network map request.
The present invention is most obvious advantage is that by step 8 to step 11, with can controlling high frequency interactive environment lower network
The quantity for scheming request, the invalid network map request of automatic rejection in high frequency interaction, with realizing high frequency interactive environment lower network
Scheme the quick response of request, and helps to save valuable bandwidth resources under low-bandwidth network environment.
Embodiment one：
In order to more clearly illustrate thought of the invention, 2 asked with reference to the accompanying drawing with network map in Chrome browser
The quick response asked is further detailed for embodiment, and in this embodiment, network map display window width is set as
1280 pixels, are highly set as 1024 pixels, and single network map image width and height are 256 pixels, using browsing
Map is quickly amplified to the 16th grade of operation from 3rd level as the implementation of network map high frequency interaction scenarios step by step in device
Example.Its network map requests fast response method, and specific step is as follows：
Step 200), initialization Chrome browser map display window, are arranged the width of network map visualization window
1280 pixels are highly 1024 pixels；
Step 201) obtains browser type, is Chrome browser, and maximum network connection number is 6, therefore will most
Big network such map requests number is set as 6；
SetInterval function in step 202), recursive call javascript 6 times, creates and with starting 6 networks
Figure request queue handles thread；
Step 203), wide and individually map image the height width of height according to the map visualization window being arranged in step 200
Calculate map image the number t, t=(1280/256+1) for needing to render in map window under each map denotation rank
(1024/256+1)=30；
Step 204) utilizes Array class new Array, creation network map request queue；
Step 205), user carry out map interactive operation by mouse or keyboard in a browser, whenever map denotation model
It encloses when changing, circulation creates new need network map Image control to be shown, the img object in html is generated, in order to
It prevents it from sending network request immediately, first it is rendered using blank image；
Step 206), the status attribute that each network map image is arranged are not load (unload) state；
Step 207) judges the length of network map request queue whether less than 30, if it is, network map is requested
It is added in network map request queue；If it is not, then entering step 208)；
First item in step 208), deletion network map request queue, then with being added to network by network map request
The end of figure request queue；
Step 209), 6 network map request queue processing threads are distinguished in cycle calculations network map request queue
In the network map number of request (u) of stress state (i.e. status attribute be loading), judge u whether less than 6, if it is,
It enters step 210)；If it is not, then repeating step 209) recalculates u；
Step 210) selects a status attribute to ask for the network map of unload from network map request queue
It asks；
The status attribute of the network map request selected is arranged to load (loading) state in step 211)；
Step 212) sends network map image request；
Step 213), request are completed, and the status attribute of network map image is arranged to have loaded (loaded) state, and
Show map image, when the status attribute of all-network map image is loaded, processing terminate for network map request.
Under user's high frequency interactive environment, which can control first network map in step 207 and step 208 and ask
The quantity for asking queue, in high-frequency operation map, old invalid network map request can guarantee network map by automatic rejection
Number of request in request queue is consistent with network map amount of images to be shown is currently needed.On the other hand, the embodiment
The number of concurrent that can be requested network map in step 209 and step 210 controls, and is controlled the maximum web in browser
Within network connection number, to avoid more invalid network map image requests is transmitted across to server, thus in high frequency interaction ring
Valuable bandwidth resources are saved under border.In the high frequency interactive application scene of the present embodiment, if being asked using traditional network map
Method is sought, one meets transmission (16-3+1) * 30=420 network map image request together, and uses the method for the present invention, can only send out
30 network map image requests are sent, to realize the quick response of the network map request under high frequency interactive environment, especially
Under low-bandwidth network environment, method provided by the invention has great importance for saving valuable bandwidth resources.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (2)
1. the network map for high frequency interactive environment requests fast response method, which is characterized in that include the following steps：
1）Browser map display window is initialized, the pixels tall and pixel wide of network map window are set；
2）Obtain the maximum network connection number c of browser；
3）It creates and starts c network map request queue processing thread；
4）According to the pixels tall and pixel wide of network map window, the Map for needing to render in network map window is calculated
As number t；Step 4）Map image the number t, t for needing to render in middle network map window=(w/pw+1) (h/ph+1)；
Wherein, h is the pixels tall of network map window, and w is the pixel wide of network map window, and ph is single map image
Pixels tall, pw be single map image pixel wide；
5）Create network map request queue；
6）Circulation creation network map Image control, is rendered using blank image；
7）The status attribute that network map image is arranged is unloaded state；
8）Judge whether the length of network map request queue is less than t, if it is, with being added to network by network map request
The end of figure request queue；If not, deleting the first item in network map request queue, then network map request is added to
The end of network map request queue；
9）Network map request queue handles thread loops with calculating the network that stress state is in network map request queue
Figure number of request u, judges whether u is less than c, if it is, entering step 10）；If it is not, then repeating step 9）Recalculate u；
10）The network map for a state being selected from network map request queue not load is requested；
11）The state that the network map request selected is arranged is stress state；
12）Send network map image request；
13）Request is completed, and setting network map image state is stress state, and shows map image.
2. fast response method according to claim 1, which is characterized in that the step 10）It is middle to select state not add
The network map request of load is to select in order.
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| CN110928944B (en) * | 2018-08-30 | 2024-04-02 | 阿里巴巴集团控股有限公司 | Data processing method and device |
| CN113590410B (en) * | 2021-06-20 | 2023-12-22 | 济南浪潮数据技术有限公司 | Resource request method, system, equipment and medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1828586A (en) * | 2005-12-21 | 2006-09-06 | 泰为信息科技（上海）有限公司 | Computer electronic map formation and display method based on Flash technology |
| CN103685309A (en) * | 2013-12-26 | 2014-03-26 | 中国科学院遥感与数字地球研究所 | Asynchronous request queue model oriented to map visualization tile service |
| CN103699670A (en) * | 2013-12-30 | 2014-04-02 | 北京奇虎科技有限公司 | Processing device and method for E-map tile request queues |
| CN103700125A (en) * | 2013-12-30 | 2014-04-02 | 北京奇虎科技有限公司 | Electronic map controller and electronic map control method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1828586A (en) * | 2005-12-21 | 2006-09-06 | 泰为信息科技（上海）有限公司 | Computer electronic map formation and display method based on Flash technology |
| CN103685309A (en) * | 2013-12-26 | 2014-03-26 | 中国科学院遥感与数字地球研究所 | Asynchronous request queue model oriented to map visualization tile service |
| CN103699670A (en) * | 2013-12-30 | 2014-04-02 | 北京奇虎科技有限公司 | Processing device and method for E-map tile request queues |
| CN103700125A (en) * | 2013-12-30 | 2014-04-02 | 北京奇虎科技有限公司 | Electronic map controller and electronic map control method |
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Effective date of registration: 20200723 Address after: 430074 Wuhan Road, Hongshan, Shandong Province, Lu Lu Road, No. 388, No. Patentee after: Wuhan in the big asset management Co.,Ltd. Address before: 430074 Wuhan Road, Hongshan, Shandong Province, Lu Lu Road, No. 388, No. Patentee before: CHINA University OF GEOSCIENCES (WUHAN CITY) |
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