CN102055784A - File broken-point continuingly-transferring method and system of rich client - Google Patents
File broken-point continuingly-transferring method and system of rich client Download PDFInfo
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- CN102055784A CN102055784A CN2009102371541A CN200910237154A CN102055784A CN 102055784 A CN102055784 A CN 102055784A CN 2009102371541 A CN2009102371541 A CN 2009102371541A CN 200910237154 A CN200910237154 A CN 200910237154A CN 102055784 A CN102055784 A CN 102055784A
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Abstract
The invention provides a file broken-point continuingly-transferring method and system of a rich client. The system comprises a client and a server, the client comprises an ActiveX control embedded in a web page, and the server comprises a file service module and a web application module; the ActiveX control reads and writes files on the client at a fixed point, the file service module reads and writes files on the server at a fixed point and performs broken-point continuingly-transferring of file data with the ActiveX control, and the web application module coordinates the ActiveX control and the file service module to complete and apply relevant service processing during the transmission process of file data. The file broken-point continuingly-transferring method comprises the following steps: the ActiveX control sends a file transmission request to the web application module and acquires transmission control data; the ActiveX control performs the broken-point continuingly-transferring of the file data together with the file service module according to the transmission control data; and the ActiveX control or the web application module performs file verification according to the transmission control data. In the invention, through the ActiveX control and the web application, the file broken-point continuingly-transferring process of the rich client is realized as well as is monitored and controlled, thereby greatly improving the success rate and the transmission efficiency of file transmission.
Description
Technical field
The present invention relates to the file transfer field in the web application, relate in particular to a kind of document breakpoint transmission method and system of rich client.
Background technology
In traditional web used, what generally adopt was the B/S software architecture that is called as " thin-client ", promptly in client special software needn't be installed, and only needed a browser to get final product, and service logic is all by server process.Under this applied environment, once can only select a file during user's upload file, and then click and upload button accordingly.If upload a plurality of files, need repetitive operation repeatedly, operation inconvenience; If network environment is bad, often when uploading to certain proportion, fail, need restart when uploading once more, not only waste Internet resources but also lose time and energy.
Recent years, industry has proposed the notion of " rich client ".The greater functionality that rich client is used similar Windows is incorporated into during web uses, the effect that the user experience that web is used reaches or uses near Windows.Existing rich client technology is broadly divided into two classes: the AJAX technology, this technology is the combination technique of DOM+CSS+JavaScript after all, solved the page whole submit to, refresh and the page in the problem of interactive operation; Browser plug-in such as SilverLight, Flex technology has been enriched user experience and mutual, and the file operation function of user's context safety is provided.But, because browser or rich client assembly are subjected to the restriction of " security limitations ", promptly, guarantee " client secure ", so under the situation that does not have user's " demonstration " operation, browser or rich client assembly can not operated client local files (comprise and enumerate file, reading and writing of files), thereby still need to restart to transmit whole file after file transfer is interrupted, and can not carry out breakpoint transmission.That is to say, owing to the network environment difference or close reason such as the web page and cause under the situation that file transfer interrupts, because safety reasons can not be read and write client file, thereby cause to realize the breakpoint transmission of file, and can only restart to transmit whole file.
In order to solve the file transfer problem in the existing rich client technology, realize the document breakpoint transmission of rich client such as employing browser plug-in technology such as mofile network hard disc, web sudden peals of thunder, specifically, come client file is read and write by plug-in unit (ocx or firefox plug-in unit) expansion browser function, thus the breakpoint transmission of realization file.But, structures such as mofile, a web sudden peal of thunder be one relatively the sealing system, its client is responsible for the read-write of client file specially, its service end is responsible for the storage of service end file specially, and do not monitor and control for the document transmission process between client and the service end, thereby cause to control whole document transmission process, under the situation that reason interruption file transfer such as network failure occur, can not continue biography efficiently, thereby make file transfer success rate and efficiency of transmission reduce.Specifically, a web sudden peal of thunder is absorbed in the client downloads process, and the file download service device is provided by each service provider, therefore, a web sudden peal of thunder can't be proposed specific (special) requirements such as " transmission control " to a plurality of service ends, and these service ends are not also monitored the web fast thunder client and special processing such as control.Thereby a web sudden peal of thunder can not be monitored document transmission process in conjunction with service end.Based on similar consideration, mofile is absorbed in storage and shares, and directly by the web server file transfer is controlled, and also in conjunction with the file service end whole transmission course is not monitored.
In addition, existing rich client technology still has the multinomial restriction of transfer files in traditional web application, for example, transfer files can only Dan Xuan, client can't the kill file type, file size is restricted, the transmission success rate is subjected to that web influence is big, efficiency of transmission is low etc.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the invention provides a kind of document breakpoint transmission method and system of rich client, with by directly client file being operated the document breakpoint transmission of realizing rich client, and whole document transmission process monitored and control, thereby improve file transfer success rate and efficiency of transmission.
According to an aspect of the present invention, provide a kind of document breakpoint transmission system of rich client, this system comprises: client comprises the ActiveX control that is embedded in the web page, this ActiveX control fixed point read-write client file; And service end, comprise file service module and web application module, file service module fixed point read-write service end file, with customer end A ctiveX control breakpoint transmission file data, the web application module is coordinated customer end A ctiveX control and is finished the relevant Business Processing of application with service end file service module in the file data transmission course.
According to a further aspect in the invention, provide a kind of document breakpoint transmission method of rich client, this method may further comprise the steps: customer end A ctiveX control sends file transfer requests to service end web application module, and obtains transmitting control data; Customer end A ctiveX control is according to transmitting control data and service end file service module breakpoint transmission file data; Verify according to the transmitting control data execute file with customer end A ctiveX control or service end web application module.
Described transmitting control data comprises client file complete trails, file size, blocks of files size, each blocks of files transmission state and document.
The ActiveX control that the present invention uses the IE browser to support in client, thereby be not subjected to the restriction of " security limitations ", but direct control client file, thus can realize the document breakpoint transmission process of rich client.By the control of the mutual and service end web application module between customer end A ctiveX control and the service end web application module to service end file service module, realization is to the monitoring and the control of the whole process of file transfer, thereby greatly improves file transfer success rate and efficiency of transmission.Specifically, when after file transfer is interrupted, starting transmission course once more, according to transmitting control data, know interrupted blocks of files and the blocks of files of not transmitting, finish the transmission of these blocks of files by service end web application module coordination customer end A ctiveX control and service end file service module, thereby realize document breakpoint transmission.In addition, because ActiveX control can be realized all functions of win32 program, so the present invention can realize rich client's operations such as multiselect file, automatic fitration file type, automatic startup file transmission, experiences for the user provides the client operation of Windows application level.
Description of drawings
Fig. 1 is the block diagram according to the document breakpoint transmission system of rich client of the present invention.
Fig. 2 is the flow chart according to the document breaking point uploading process of rich client of the present invention.
Fig. 3 is the flow chart according to the document breaking point downloading process of rich client of the present invention.
Embodiment
In the present invention, the ActiveX control of use IE browser support is realized the operation to client file, and the mutual and service end web application block between use customer end A ctiveX control and the service end web application module realizes document breakpoint transmission to the control of service end file service module.As service application, the use of the ActiveX control of IE browser support is to be based upon on the basis of the trust (trust of control just) that client uses web, so there is not the restriction of " security limitations " that browser or rich client assembly faced in ActiveX control, can directly operate client file, thus the document breakpoint transmission of realization rich client.
Below, with the document breakpoint transmission method and system that are described in detail with reference to the attached drawings according to rich client of the present invention.Here, document breakpoint transmission comprise that fixed point reads client file and with its breaking point uploading to the process of service end with fix a point to read the service end file and its breakpoint is downloaded to the process of client.
With reference to figure 1, comprise according to the document breakpoint transmission system of rich client of the present invention: client comprises the ActiveX control 10 that is embedded in the web page; Service end comprises web application module 12 and file service module 14.When customer end A ctiveX control 10 is embedded the web page, the attribute of configuration ActiveX control comprises weblication coordination URL, file data transmission means (http or ftp), http file server URL or ftp file service relevant information, file identification (or not creating file) etc.Customer end A ctiveX control 10 fixed point read-write client files.Service end file service module 14 fixed point read-write service end files are with customer end A ctiveX control 10 breakpoint transmission file datas.Service end web application module 12 is coordinated customer end A ctiveX control 10 and is finished the relevant Business Processing of application with service end file service module 14 in the file data transmission course.
Specifically, in the document breaking point uploading process, the request that customer end A ctiveX control 10 sends upload file and downloads transmitting control data to service end web application module 12, read the client file piece according to the transmitting control data fixed point that receives from service end web application module 12, and these blocks of files are uploaded to service end file service module 14; Service end web application module 12 is created the transmitting control data file in response to the request of the upload file that receives from customer end A ctiveX control 10, request in response to the download transmitting control data that receives from customer end A ctiveX control 10 sends to customer end A ctiveX control 10 with transmitting control data, transaction file piece transmission state is verified the file of uploading success; Service end file service module 14 writes service end in response to the upload request of customer end A ctiveX control 10 with the blocks of files fixed point of customer end A ctiveX control 10 breaking point uploadings.
In the document breaking point downloading process, customer end A ctiveX control 10 sends the request of file in download to service end web application module 12, the transmitting control data file is created in answer according to service end web application module 12 in this locality, ask file in download according to transmitting control data to service end file service module 14, service end file service module 14 breakpoint downloaded files pieces fixed point is written to client, transaction file piece transmission state, and verify downloading successful file; Service end web application module 12 sends to customer end A ctiveX control 10 with file-related information as described answer in response to the download request of customer end A ctiveX control 10, coordinates customer end A ctiveX control 10 and service end file service module 14 and finishes the breakpoint download; Service end file service module 14 reads the service end blocks of files and it is downloaded to customer end A ctiveX control 10 in response to the download request fixed point that receives from customer end A ctiveX control 10.
Fig. 2 is the flow chart according to the document breaking point uploading method of rich client of the present invention.With reference to figure 2, this breaking point uploading method may further comprise the steps:
(1) in step Si00, customer end A ctiveX control is to the request of service end web application module transmission upload file, and solicited message comprises client file complete trails, file size and document.In step S102, service end web application module is created the transmitting control data file according to the solicited message that receives from customer end A ctiveX control, this transmitting control data file comprises information such as client file complete trails, file size, document, blocks of files size, each blocks of files transmission state, and file identification is returned to customer end A ctiveX control in step S104.The blocks of files transmission state is with 0 or 1 sign, and whether expression this document piece end of transmission.
(2) in step S106, customer end A ctiveX control is to the notice of service end file service module transmission upload file, and announcement information comprises file identification and file size.In step S108, service end file service module sends the answer of success or not to customer end A ctiveX control.
(3) in step S110, customer end A ctiveX control sends the request of downloading transmitting control data to service end web application module, and solicited message comprises file identification.In step S112, service end web application module turns back to customer end A ctiveX control according to the file identification that receives with transmitting control data.
(4) in step S114, customer end A ctiveX control is checked each blocks of files transmission state according to the transmitting control data that receives from service end web application module, and determines whether the blocks of files do not uploaded in addition.If the blocks of files of not uploading in addition, then repeated execution of steps S116 is to step S128.Otherwise execution in step S130 is to step S134.
(5) in step S116, customer end A ctiveX control reads current with the blocks of files of uploading according to control transmission data fixed point, and in step S118, upload the current file blocks of data to the request of service end file service module according to transmitting control data, solicited message comprises file identification, blocks of files position, blocks of files size.In step S120, service end file service module writes the service end file according to the solicited message that receives with the current file blocks of data, and sends the answer of success or not in step S122 to ActiveX control.
(6) in step S124, customer end A ctiveX control notification service end web application module blocks of files transmission success, announcement information comprises file identification, blocks of files position and blocks of files size.In step S126, service end weblication transaction file piece transmission state specifically, is become the blocks of files transmission state and is transmitted (1) by transmission (0) not, and send the answer of success or not to customer end A ctiveX control in step S128.
(7) in step S130, customer end A ctiveX control notification service end web application module file transfer finishes, and announcement information comprises file identification.In step S132, service end web application module is verified file according to the document in the transmitting control data, if by checking, then transaction file transmission state, do corresponding cleaning work, and in step S134, send the answer of success or not to customer end A ctiveX control.
(8) last, customer end A ctiveX control is corresponding transmission result according to the answer of service end web application module and is showed.
If in said process, make a mistake or in said process, return not successful answer, when starting upload procedure so once more, from step S110, promptly, customer end A ctiveX control sends the request of downloading transmitting control data to service end web application module once more, according to the blocks of files transmission state in the transmitting control data, know whether each blocks of files has uploaded the piece that finishes and do not upload.Then, customer end A ctiveX control reads interrupted blocks of files and uploads the blocks of files of not uploading of this document piece and back again according to the transmitting control data that receives from the web application module.Like this, according to transmitting control data, by web application coordination client and service end, whole document breaking point uploading process is monitored and controlled, thereby greatly improve transmission success rate and efficiency of transmission.
Fig. 3 is the flow chart according to the document breaking point method for down loading of rich client of the present invention.With reference to figure 3, this breakpoint method for down loading may further comprise the steps:
(1) in step S200, customer end A ctiveX control is to the request of service end web application module transmission file in download, and solicited message comprises file identification.In step S202, service end web application module sends file size, blocks of files size and document to customer end A ctiveX control;
(2) in step S204, customer end A ctiveX control is created the transmitting control data file according to the answer that receives from service end web application module in this locality, this transmitting control data file comprises client file complete trails, file size, blocks of files size, each blocks of files transmission state and document;
(3) in step S206, the transmitting control data that customer end A ctiveX control is created according to this locality is checked each blocks of files transmission state, and determines whether to also have not downloaded files piece.If also have not downloaded files piece, then repeated execution of steps S208 is to step S218.Otherwise execution in step S220 is to step S224;
(4) in step S208, customer end A ctiveX control is according to the request of transmitting control data to service end file service module transmission file in download piece, and solicited message comprises file identification, blocks of files position and blocks of files size.In step S210, service end file service module responds reads the service end blocks of files in the download request fixed point, and in step S212, the service end blocks of files that reads is sent to customer end A ctiveX control;
(5) in step S214, customer end A ctiveX control writes client file with the blocks of files fixed point that receives, and transaction file piece transmission state;
(6) in step S216, customer end A ctiveX control sends blocks of files to service end web application module and downloads successfully notice, and announcement information comprises file identification, blocks of files position and blocks of files size.In step S218, service end web application module sends the answer of success or not to customer end A ctiveX control;
(7) in step S220, customer end A ctiveX control is verified downloaded files according to the document in the transmitting control data.If be proved to be successful, then delete the local transmitting control data file of creating;
(8) in step S222, customer end A ctiveX control sends file to service end web application module and downloads the notice that finishes, and the communication information comprises file identification.In step S224, the answer whether service end web application module returns success to customer end A ctiveX control.
(9) last, customer end A ctiveX control is done and is downloaded result's displaying.
If in said process, make a mistake or in said process, return not successful answer, when starting downloading process so once more, from step S206, promptly, the transmitting control data that customer end A ctiveX control is created according to this locality is checked each blocks of files transmission state, and determines whether to also have not downloaded files piece.If also have not downloaded files piece, then download these blocks of files again.The same with the document breaking point uploading process, according to transmitting control data, by web application coordination client and service end, whole document breaking point downloading process is monitored and controlled, thereby greatly improve transmission success rate and efficiency of transmission.
From on can find out, no matter be that breaking point uploading or breakpoint are downloaded, generally, document breakpoint transmission method according to the present invention mainly may further comprise the steps:
Step a, customer end A ctiveX control send file transfer requests to service end web application module, and obtain transmitting control data;
Step b, customer end A ctiveX control are according to transmitting control data and service end file service module breakpoint transmission file data; With
Step c, customer end A ctiveX control or service end web application module are verified according to the transmitting control data execute file.
And, because the operational capacity of ActiveX control is equal to the Win32 program, can realize all functions of win32 program, therefore, in the present invention, can realize the multiselect of transfer files and start rich client's operation such as transmission automatically.
In addition, in existing web ajax technology, can only after user's select File, judge the file type of this document, therefore automatic fitration file type in advance.But, in the present invention, by disposing an extension name attribute to ActiveX control, this ActiveX control just can be provided with file according to this attribute and select the optional file type of dialog box, just file type is filtered before user's select File like this.That is to say, can be according to the document breakpoint transmission method of rich client of the present invention according to configuration automatic fitration file type.
Can find out by above embodiment, owing to used the ActiveX control of IE browser support in client, so can directly operate client file.Specifically, because the IE browser is supported ActiveX control, so ActiveX control is not subjected to the restriction of " client secure restriction ", therefore can be in webpage " memory " client terminal local file complete trails, according to this path file is carried out the piecemeal read-write then, thereby realize the document breakpoint transmission of rich client.And, in whole document transmission process,,, monitoring and control be can realize, thereby file transfer success rate and efficiency of transmission improved whole document transmission process by web application coordination client and service end according to transmitting control data.In addition, broken through the multinomial restriction of traditional web page transfer files according to the document breakpoint transmission method and system of rich client of the present invention, the rich client operating experience of Windows application level is provided, but for example multiselect file, automatic fitration file type, automatic startup transmission etc.
But, should be appreciated that the invention is not restricted to the disclosed embodiments, any similar modification and replacement all should comprise in the present invention.For example, the content of described transmitting control data is not limited to the disclosed content of embodiment, can comprise any information that control is required.Form and the mode of transmitting these transmitting control datas can adopt any known form and mode.Document breakpoint transmission method and system of the present invention can be supported any host-host protocol, are not limited to disclosed http and ftp host-host protocol among the embodiment.
Claims (13)
1. the document breakpoint transmission system of a rich client is characterized in that, this system comprises:
Client comprises the ActiveX control that is embedded in the web page, this ActiveX control fixed point read-write client file; With
Service end, comprise file service module and web application module, file service module fixed point read-write service end file, with customer end A ctiveX control breakpoint transmission file data, the web application module is coordinated customer end A ctiveX control and is finished the relevant Business Processing of application with service end file service module in the file data transmission course.
2. the document breakpoint transmission system of rich client according to claim 1 is characterized in that,
In the document breaking point uploading process,
The request that customer end A ctiveX control sends upload file and downloads transmitting control data to service end web application module, read the client file piece according to the transmitting control data fixed point that receives from service end web application module, and these blocks of files are uploaded to service end file service module;
Service end web application module is created the transmitting control data file and transmitting control data is sent to customer end A ctiveX control in response to the request that receives from customer end A ctiveX control, and the file of uploading success is verified;
Service end file service module responds writes service end in the upload request of customer end A ctiveX control with the blocks of files fixed point of customer end A ctiveX control breaking point uploading.
3. the document breakpoint transmission system of rich client according to claim 1 is characterized in that,
In the document breaking point downloading process,
Customer end A ctiveX control sends the request of file in download to service end web application module, the transmitting control data file is created in answer according to service end web application module in this locality, according to transmitting control data to service end file service module request file in download, service end file service module breakpoint downloaded files piece fixed point is written to client, and verifies downloading successful file;
Service end web application module sends to customer end A ctiveX control with file-related information as described answer in response to the download request of customer end A ctiveX control, coordinates customer end A ctiveX control and service end file service module and finishes the breakpoint download;
Service end file service module responds reads the service end blocks of files and these blocks of files is downloaded to customer end A ctiveX control in the download request fixed point that receives from customer end A ctiveX control.
4. the document breakpoint transmission method of the document breakpoint transmission system of a rich client according to claim 1 is characterized in that, this method may further comprise the steps:
Step a, customer end A ctiveX control send file transfer requests to service end web application module, and obtain transmitting control data;
Step b, customer end A ctiveX control are according to transmitting control data and service end file service module breakpoint transmission file data; With
Step c, customer end A ctiveX control or service end web application module are verified according to the transmitting control data execute file.
5. document breakpoint transmission method according to claim 4 is characterized in that,
Described transmitting control data comprises client file complete trails, file size, blocks of files size, each blocks of files transmission state and document.
6. document breakpoint transmission method according to claim 5 is characterized in that,
In the document breaking point uploading process, in step a, service end web application module is created the transmitting control data file according to the client file complete trails that receives from customer end A ctiveX control, file size and document, and in response to the request of the download transmitting control data of customer end A ctiveX control transmitting control data is sent to customer end A ctiveX control.
7. document breakpoint transmission method according to claim 5 is characterized in that,
In the document breaking point uploading process, in step b, customer end A ctiveX control is checked each blocks of files transmission state according to transmitting control data, and fixed point reads the client file piece, and the blocks of files of not uploading is uploaded to service end file service module; Service end file service module writes the service end file with these blocks of files fixed points; Service end web application module is uploaded in response to the blocks of files of customer end A ctiveX control and is successfully notified transaction file piece transmission state.
8. document breakpoint transmission method according to claim 7 is characterized in that,
In step b, in file is uploaded, have no progeny and start once more when uploading, customer end A ctiveX control is downloaded transmitting control data to service end web application module requests again, and the blocks of files of uploading interrupted blocks of files again and not uploading according to the transmitting control data of downloading.
9. document breakpoint transmission method according to claim 5 is characterized in that,
In the document breaking point uploading process, in step c, file in response to customer end A ctiveX control is uploaded the notice that finishes, and service end web application module is verified and the transaction file transmission state the file of uploading success according to the document in the transmitting control data.
10. document breakpoint transmission method according to claim 5 is characterized in that,
In the document breaking point downloading process, in step a, customer end A ctiveX control is created the transmitting control data file according to the file size, blocks of files size and the document that receive from service end web application module in this locality.
11. document breakpoint transmission method according to claim 5 is characterized in that,
In the document breaking point downloading process, in step b, customer end A ctiveX control is checked each blocks of files transmission state and asks service end file service module to download not downloaded files piece that service end file service module not downloaded files piece downloads to customer end A ctiveX control according to transmitting control data; Customer end A ctiveX control writes client file with these blocks of files fixed points, and transaction file piece transmission state.
12. document breakpoint transmission method according to claim 11 is characterized in that,
In step b, having no progeny in file is downloaded starts when downloading once more, downloads interrupted blocks of files and downloaded files piece not again according to the transmitting control data in the transmitting control data file.
13. document breakpoint transmission method according to claim 5 is characterized in that,
In the document breaking point downloading process, in step c, customer end A ctiveX control is verified downloaded files according to the document in the transmitting control data.
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| CN103067505A (en) * | 2012-12-30 | 2013-04-24 | 乐视网信息技术（北京）股份有限公司 | Method for uploading files to server |
| CN103188327A (en) * | 2011-12-31 | 2013-07-03 | 北大方正集团有限公司 | Method and system of file transfer |
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| CN103634407B (en) * | 2013-12-11 | 2016-08-17 | 北京荣之联科技股份有限公司 | A kind of method and apparatus of cloud storage document breakpoint transmission |
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| CN104484242A (en) * | 2014-12-10 | 2015-04-01 | 上海爱数软件有限公司 | Method for breaking-point transmission in copy-on-write snapshot backup process |
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| CN112217903A (en) * | 2020-10-27 | 2021-01-12 | 广东广宇科技发展有限公司 | Large file transmission method, device, server and storage medium |
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Application publication date: 20110511 |