CN1688147A - Breaker point continuous transmission method based on mail - Google Patents
Breaker point continuous transmission method based on mail Download PDFInfo
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- CN1688147A CN1688147A CN 200510070704 CN200510070704A CN1688147A CN 1688147 A CN1688147 A CN 1688147A CN 200510070704 CN200510070704 CN 200510070704 CN 200510070704 A CN200510070704 A CN 200510070704A CN 1688147 A CN1688147 A CN 1688147A
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Abstract
This invention discloses a method for continuing the transmission transfer for the work of a break point including the following steps: 1, a connection is set up between a mail server and a mail agent gateway by POP3 protocol and MAPI interface, 2, a connection is set up between the mail agent server and the mail customer end by the strengthened POP3 protocol, 3, recording IP, start position of the mails and each time transferred length of the being down loaded files till the finish to set ending labels for the transmission, 4, data transmission is realized by ERET order.
Description
Technical field
The present invention relates to computer information processing, the Internet and wireless communication technology, particularly relate to a kind of breaker point continuous transmission method based on mail.
Background technology
So-called breakpoint transmission, exactly when downloading when running into accident midway and going offline, next download can be automatically in the past a breakpoint begin to continue transmission, thereby avoid wastes such as the network traffics expense that causes because of the network interruption and time.
The breakpoint transmission instrument that Web is upward popular is a lot of at present, function is roughly the same, that popular is Netants, Filehound, FlashGet, Netvampire or the like, the benefit of this class instrument is will need downloaded files to put together in the task list mode, then when inserting Internet at every turn, start the breakpoint transmission instrument, download on the backstage; When browsing end, interrupt file and download, use the breakpoint transmission instrument to continue download when inserting Internet once more to next time.But there is such problem in these instruments:
(1) can not support the breakpoint transmission of mail, particularly for the mobile phone that does not have similar download tool on the terminal;
(2) can't select to download the text or the annex, the particularly download of part annex of mail.
Summary of the invention
In order to solve the breakpoint transmission problem of above-mentioned existence, the invention provides a kind of can realize mail, and can select to download the method for the text and the annex of mail.
Technical scheme of the present invention is achieved in that a kind of breaker point continuous transmission method may further comprise the steps:
(1) between mail server and mail proxy gateway, connects by POP3 agreement (Post OfficeProtocol Version3) and MAPI interface (Messaging Application ProgrammingInterface);
(2) between mail proxy server and Mail Clients, connect by the POP3 agreement that strengthens;
When (3) carrying out breakpoint transmission, the ID, file original position of mail, the length of each transmission etc. will be downloaded in record, finishes until mail transmission, and end of transmission sign is set at every turn;
(4) transfer of data realizes that by ERET (Extended Retrieve) order its form is:
ERET<uid>[<content-id>[<convert-type>[<offset>[<length>]]]]
Parameter declaration:
＜uid 〉: the UID of mail
＜content-id 〉: the type of Mail Contents
0-mail head, message body and accessories list (default value)
＜string x 〉-an x annex, if the annex in the annex then is expressed as x.y
＜convert-type 〉: the mode of attachment content conversion.
Original-does not change (default value)
Default-mail proxy gateway acquiescence translation type
Other-file suffixes of switch target form, as doc/txt/xls/pdf/jpg etc.
＜offset 〉: the starting position (default value: 0) that obtains content
＜length 〉: the byte number (default value: the length of all the elements that begin from the starting position) that obtains content
Returned value specification:
(1) if order successfully, then return:
The size of the mail data of+OK＜obtain〉＜the total size of mail data 〉
The content of＜the mail data that obtains 〉
(2) if order makes mistakes, then return:
-ERR＜the code of makeing mistakes 〉
No such message-target message does not exist
No such content-object content does not exist
Error file format-file format is incorrect
Unable to convert-can't carry out file format conversion (because form do not match etc.)
Beneficial effect compared with prior art of the present invention is:
(1) can download message body and annex;
(2) can select to download several accessories or only download message body,, improve efficiency of transmission to save bandwidth and traffic fee usefulness;
(3) next download can be automatically in the past a breakpoint begin to continue transmission, thereby avoid interrupting wastes such as the network traffics expense that causes and time because of network.
Description of drawings
Fig. 1 is the realization schematic diagram of the specific embodiment of the invention;
Fig. 2 is the workflow diagram of the specific embodiment of the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further introduced, as depicted in figs. 1 and 2, Mail Clients 3 requests are downloaded mail and (can be downloaded message body and annex, also can select to download several accessories or only download message body) (step 101), mail proxy gateway 2 accepts request (step 102), and judges it is to ask first or breakpoint transmission request (step 103) according to mail ID; If breakpoint transmission directly enters step 105; If request is first obtained related content from mail server 1, and be divided into download judgement (step 104).Specify current fragment (step 105), Mail Clients is downloaded the fragment (step 106) of current appointment then.Judge whether to download and finish all fragments (step 107), if do not finish, specifying next fragment is current fragment (step 108), and circulation is downloaded; If finished the download of all fragments, just can splice all fragments, finish the download work (step 109) of mail.
The invention is not restricted to the foregoing description, for the professional in present technique field, any improvement that the embodiment of the invention is made or change can not exceed the protection range of spirit of the present invention and claims.
Claims (1)
1, a kind of breaker point continuous transmission method based on mail is characterized in that it may further comprise the steps:
(1) between mail server and mail proxy gateway, connects by POP3 agreement and MAPI interface;
(2) between mail proxy server and Mail Clients, connect by the POP3 agreement that strengthens;
When (3) carrying out breakpoint transmission, the ID, file original position of mail, the length of each transmission etc. will be downloaded in record, finishes until mail transmission, and end of transmission sign is set at every turn;
(4) transfer of data realizes that by the ERET order its form is:
ERET<uid>[<content-id>[<convert-type>[<offset>[<length>]]]]
Parameter declaration:
＜uid 〉: the UID of mail;
＜content-id 〉: the type of Mail Contents;
0-mail head, message body and accessories list (default value);
＜string x 〉-an x annex, if the annex in the annex then is expressed as x.y;
＜convert-type 〉: the mode of attachment content conversion;
Original-does not change (default value);
Default-mail proxy gateway acquiescence translation type;
Other-file suffixes of switch target form, as doc/txt/xls/pdf/jpg etc.;
＜offset 〉: the starting position (default value: 0) that obtains content;
＜length 〉: the byte number (default value: the length of all the elements that begin from the starting position) that obtains content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100707047A CN100514964C (en) | 2005-05-17 | 2005-05-17 | Breaker point continuous transmission method based on mail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100707047A CN100514964C (en) | 2005-05-17 | 2005-05-17 | Breaker point continuous transmission method based on mail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1688147A true CN1688147A (en) | 2005-10-26 |
| CN100514964C CN100514964C (en) | 2009-07-15 |
Family
ID=35306187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100707047A Expired - Fee Related CN100514964C (en) | 2005-05-17 | 2005-05-17 | Breaker point continuous transmission method based on mail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100514964C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007107069A1 (en) * | 2006-03-17 | 2007-09-27 | Huawei Technologies Co., Ltd. | A dynamic content continuous transmission method, device and system |
| CN101207575A (en) * | 2006-12-19 | 2008-06-25 | 国际商业机器公司 | System and method for managing file downloads |
| CN101771716A (en) * | 2008-12-29 | 2010-07-07 | 深圳市维信联合科技有限公司 | E-mail synchronous receiving method and system |
| CN101610224B (en) * | 2008-06-20 | 2011-11-30 | 中兴通讯股份有限公司 | Method for sending mail between different places |
| CN102447744A (en) * | 2011-12-29 | 2012-05-09 | 上海量明科技发展有限公司 | Implementation method, client, server and system for downloading mail |
| CN102546790A (en) * | 2011-12-29 | 2012-07-04 | 上海量明科技发展有限公司 | Mail data download realizing method, client, server and system |
| CN105791062A (en) * | 2016-03-11 | 2016-07-20 | 中国联合网络通信集团有限公司 | Method for identifying service, home gateway, and home network system |
| CN109240721A (en) * | 2018-08-24 | 2019-01-18 | 江苏恒宝智能系统技术有限公司 | A kind of method of MCU online upgrading |
| CN112966052A (en) * | 2019-04-17 | 2021-06-15 | 创新先进技术有限公司 | Method and device for obtaining block chain data in multiple times |
-
2005
- 2005-05-17 CN CNB2005100707047A patent/CN100514964C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007107069A1 (en) * | 2006-03-17 | 2007-09-27 | Huawei Technologies Co., Ltd. | A dynamic content continuous transmission method, device and system |
| US8412793B2 (en) | 2006-03-17 | 2013-04-02 | Huawei Technologies Co., Ltd. | Method, device and system for delivery resume of dynamic content |
| CN101207575A (en) * | 2006-12-19 | 2008-06-25 | 国际商业机器公司 | System and method for managing file downloads |
| CN101610224B (en) * | 2008-06-20 | 2011-11-30 | 中兴通讯股份有限公司 | Method for sending mail between different places |
| CN101771716A (en) * | 2008-12-29 | 2010-07-07 | 深圳市维信联合科技有限公司 | E-mail synchronous receiving method and system |
| CN102447744A (en) * | 2011-12-29 | 2012-05-09 | 上海量明科技发展有限公司 | Implementation method, client, server and system for downloading mail |
| CN102546790A (en) * | 2011-12-29 | 2012-07-04 | 上海量明科技发展有限公司 | Mail data download realizing method, client, server and system |
| CN102447744B (en) * | 2011-12-29 | 2014-02-26 | 上海量明科技发展有限公司 | Implementation method, client, server and system for downloading mail |
| CN102546790B (en) * | 2011-12-29 | 2016-08-03 | 上海量明科技发展有限公司 | Implementation method, client, server and the system that mail data is downloaded |
| CN105791062A (en) * | 2016-03-11 | 2016-07-20 | 中国联合网络通信集团有限公司 | Method for identifying service, home gateway, and home network system |
| CN109240721A (en) * | 2018-08-24 | 2019-01-18 | 江苏恒宝智能系统技术有限公司 | A kind of method of MCU online upgrading |
| CN112966052A (en) * | 2019-04-17 | 2021-06-15 | 创新先进技术有限公司 | Method and device for obtaining block chain data in multiple times |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100514964C (en) | 2009-07-15 |
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Granted publication date: 20090715 Termination date: 20150517 |
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