CN102307219A - File access system, file uploading method and file downloading method - Google Patents
File access system, file uploading method and file downloading method Download PDFInfo
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- CN102307219A CN102307219A CN201110066007A CN201110066007A CN102307219A CN 102307219 A CN102307219 A CN 102307219A CN 201110066007 A CN201110066007 A CN 201110066007A CN 201110066007 A CN201110066007 A CN 201110066007A CN 102307219 A CN102307219 A CN 102307219A
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Abstract
The invention provides a file access system, which comprises at least one client, at least one WEB server, a file library server and a relation database, wherein the WEB server communicates with the client, the relation database and the file library server respectively; the client sends a file to be uploaded to the file library server through the WEB server for storage and receives a file downloaded by the WEB server from the file library server; and the WEB server also controls to generate a stored file name of the file to be uploaded and sends the generated stored file name and a real file name of the file to be uploaded to the relation database for storage. Furthermore, the invention also provides a file uploading method and a file downloading method which are implemented by using the file access system. By the technical scheme, the file can be uploaded and downloaded conveniently and the same files are not required to be stored repeatedly, so that storage resource waste caused by repeated storage can be avoided and a requirement on the storage capacity of the server is reduced.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of file and upload the system and method for downloading with file.
Background technology
At present,, generally require each all on same main frame, accomplishing alternately in order to realize the function that uploads and downloads of file, promptly file to upload and download all be on same Web server, to carry out.Utilization along with four layer-switching technologies; In order to realize uploading and downloading based on the file under four layer-switching technologies; Then all to preserve identical file in every WEB server; This is because the operator carries out mutual Web server and possibly not be same at every turn; If want to guarantee that the operator at every turn can both successful file in download; Then need in upload file, on every WEB server, all preserve same file, so just cause the annex repeated storage, defectives such as waste memory space.
Servlet is a kind of java application of server end, has the characteristic that is independent of platform and agreement, can generate the dynamic Web page.It takes on the intermediate layer of client requests (Web browser or other HTTP CLIENT PROGRAM) and server response (database on the http server or application program).Servlet is the java application that is positioned at the inner server end of Web server; Different with traditional java application from the order line startup; Servlet is loaded by Web server, and this Web server must comprise the Java Virtual Machine of supporting Servlet.
Action be the user ask and service logic between bridge, each Action serves as client's a service agent.
FTP is that the English of File Transfer Protocol (file transfer protocol (FTP)) is called for short, and Chinese abbreviates " literary composition passes agreement " as.The transmitted in both directions that is used for the control documents on the Internet.Simultaneously, it also is an application program (Application).The user can link to each other a large amount of programs and information on the access server to oneself PC with all servers that move File Transfer Protocol all over the world through it.The main effect of FTP; Allowing the user connect a remote computer (moving the ftp server program on these computers) exactly watches remote computer which file is arranged; Then file is copied local computer from remote computer, or the file of local computer is delivered to remote computer.
The Response object is used for sending to the user from server the result of output.
List, the effect in webpage can't neglect, and mainly is responsible for the function of data acquisition.
Summary of the invention
The object of the present invention is to provide a kind of file of realizing to upload and file downloaded files access system and method.
As a first aspect of the present invention; A kind of file access system is provided; Comprise at least one client, at least one WEB server, a library server, a relational database, said WEB server respectively with said client, said relational database, said library server communication;
Said client will be treated through said WEB server that upload file is sent in the said library server and preserve, and receive said WEB server downloaded files in said library server;
Said WEB server is also controlled and is generated the said storage file name of treating upload file, and said storage file name and said is treated that the authentic document name of upload file is sent in the said relational database preserve.
Further, said file access system also comprises one four layer exchange device, said four layer exchange devices respectively with said client and said WEB server communication,
Said four layer exchange devices receive the upload file request or the file in download request of said client, and said upload file request or file in download request are sent to any in said at least one WEB server.
As a second aspect of the present invention, a kind of file uploading method is provided,
The first step, client is extracted the essential information of treating upload file, generates the form list;
In second step, said client is with said form list and saidly treat that upload file is sent on the control servlet of WEB server;
In the 3rd step, said control servlet reads said essential information, and treats that with said upload file is saved in the temporary folder of said WEB server;
In the 4th step, said WEB server controls generates the said storage file name of treating upload file;
In the 5th step, the library server communication of said control servlet and said WEB server outside is treated that upload file is sent in the said library server and is preserved said;
In the 6th step, said WEB server will be said be treated that storage file name, the authentic document name of upload file are sent in the relational database of said WEB server outside and is preserved;
In the 7th step, said control servlet deletes the upload file of treating of preserving in the said temporary folder.
Further, said essential information comprises said authentic document name and/or file type and/or file extension and/or the file size of treating upload file.
Further, the said storage file name of upload file of treating is made up of the IP address of WEB server and 36 random numbers that generate through linear congruence random number algorithm.
Further, in said the 5th step, said control servlet sets up with said library server according to following steps and communicates by letter,
Steps A 2, said Action sets up with said library server and communicates by letter;
Steps A 3, said control servlet will treat that upload file is sent to said library server via said Action.
As a third aspect of the present invention, a kind of document down loading method is provided,
Step 2, said WEB server are searched file to be downloaded according to said file download request in the outside relational database of said WEB server;
Step 3, said WEB server generate at least one file chaining and are sent to said client according to lookup result;
Step 4, said client are selected file to be downloaded according to user's request in said at least one file chaining, and ask the control servlet in the said WEB server to download this document;
Step 5, the library server communication that said control servlet and said WEB server are outside is searched said file to be downloaded, and said file to be downloaded is saved in the said WEB server in said library server;
Step 6, said control servlet is sent to said client with said file to be downloaded.
Further, in the said step 5, said control servlet sets up with said library server according to following steps and communicates by letter,
Step B1, said control servlet communicates by letter with the Action foundation in the said WEB server;
Step B2, said Action set up with said library server and communicate by letter;
Step B3, said library server is sent to said control servlet with the file to be downloaded that finds via said Action.
The invention has the beneficial effects as follows: technical scheme of the present invention just can realize uploading and downloading of file easily, and does not need the identical file of repeated storage, and the storage resources of having avoided causing is thus wasted, and has reduced the requirement to the server stores ability.
Description of drawings
Fig. 1 constitutes sketch map for the system of first kind of implementation of file access system of the present invention;
Fig. 2 constitutes sketch map for the system of second kind of implementation of file access system of the present invention;
Fig. 3 is the schematic flow sheet of file uploading method of the present invention;
Fig. 4 is the schematic flow sheet of document down loading method of the present invention.
Embodiment
Below in conjunction with accompanying drawing principle of the present invention and characteristic are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
As a first aspect of the present invention; A kind of file access system is provided; As shown in Figure 1; This system comprises at least one client 100, at least one WEB server 200, library server 300, a relational database 400, and WEB server 200 communicates with client 100, relational database 400, library server 300 respectively.Wherein, client 100 will treat that through WEB server 200 upload file (promptly preparing to be uploaded to the file of library server 300) is sent in the library server 300 and preserves, and receive WEB server 200 downloaded files in library server 300.WEB server 200 is also controlled and is generated the storage file name of treating upload file; And the storage file name is sent in the relational database 400 with the authentic document name of treating upload file together preserves, promptly preserve the storage file name and the authentic document name of upload file in the relational database 400.Utilize file access system of the present invention just can realize uploading and downloading of file easily.And file access system of the present invention need be in every WEB server 200 the identical file of repeated storage, this has just been avoided storage resources waste of causing thus, has reduced the requirement to the server stores ability.
As shown in Figure 2, file access system comprises that also one four layer exchange device, 500, four layer exchange devices 500 communicate by letter with WEB server 200 with client 100 respectively.Upload file request or file in download request that four layer exchange devices 500 receive client 100 are sent to any at least one WEB server 200 with upload file request or file in download request.
In the file access system shown in Figure 1, communicate by letter if the operator sets up with WEB server 200 through client 100 requests, then the operator need write down the IP address of all WEB servers 200.The operator is through the IP address of the some WEB servers of client 100 input, makes to set up between client 100 and this WEB server to communicate by letter, thereby passes through this WEB server to 300 upload files of library server or file in download.And in the file access system shown in Figure 2, the IP address that the operator only need write down four layer exchange devices 500 gets final product, handled easily person's use.The operator is through the IP address of client 100 inputs four layer exchange devices 500; Make to set up between client 100 and four layer exchange devices 500 and communicate by letter; Communicate by letter by any one foundation at random of four layer exchange devices 500, thereby realize through the WEB server to 300 upload files of library server or file in download with in a plurality of WEB servers 200.
As a second aspect of the present invention, a kind of file uploading method is provided, as shown in Figure 3, upload according to following steps realization file.
The first step, client 100 is extracted the essential information of treating upload file, generates the form list.Be the WEB webpage that operator's logging on client 100 provides, the essential information (for example treating authentic document name and/or file type and/or the file extension and/or the file size of upload file) of treating upload file is generated the form list.
In second step, client 100 is with the form list and treat that upload file is sent on the control servlet of WEB server 200.The operator directly imports the IP address of some WEB servers, with the form list with treating that upload file is sent to this WEB server.Perhaps, the operator imports the IP address of four layer exchange devices 500, selects a WEB server by four layer exchange devices 500, sets up with client 100 and communicate by letter, receives the form list that client 100 sends and treats upload file.
In the 3rd step, control servlet reads essential information, and will treat that upload file is saved in the temporary folder of WEB server 200.After WEB server 200 receives the information of client 100 transmissions, in the form list, extract the essential information of file on the one hand, be used to generate the storage file name of this document; To treat that on the other hand upload file is saved in the temporary folder, for ready to 300 upload files of library server.
In the 4th step, 200 controls of WEB server generate the storage file name of treating upload file.This storage file name is to constitute by the IP address of WEB server with through 36 random numbers that linear congruence random number algorithm generates.
In the 5th step, control servlet communicates by letter with WEB server 200 outside library servers 300, will treat that upload file is sent to preservation in the library server 300.Concrete steps are following: at first, control servlet communicates by letter with the Action foundation in the WEB server 200; Secondly, Action sets up with library server 300 through File Transfer Protocol and communicates by letter; At last, control servlet will treat that upload file is sent to library server 300 via Action through FTP.
In the 6th step, WEB server 200 will be treated that storage file name, the authentic document name of upload file are sent in the outside relational database 400 of WEB server 200 and preserve.
In the 7th step, control servlet deletes the upload file of treating of preserving in the temporary folder.So far accomplish the uploading operation of a file.
As a third aspect of the present invention, a kind of document down loading method is provided, as shown in Figure 4, realize the file download according to following steps.
Step 2, WEB server 200 are searched file to be downloaded according to the file download request in the relational database 400 of WEB server 200 outsides.Just WEB server 200 and relational database 400 set up and communicated by letter, and in relational database 400, searches the file that the essential information with file to be downloaded matches.
Step 3, WEB server 200 generate at least one file chaining and are sent to client 100 according to lookup result.If WEB server 200 does not find associated documents information in relational database 400, then there is not the file that satisfies operator's needs in the supporting paper storehouse server 300, then WEB server 200 returns Query Result to client 100, finishes this file and downloads.If WEB server 200 finds the fileinfo of at least one match operation person demand in relational database 400, the exclusive link that then is directed against the storing path spanned file of these files is sent to client 100, supplies the operator to select.
Step 4, client 100 are selected file to be downloaded according to user's request at least one file chaining, and the control servlet in the request WEB server 200 downloads this document.Be that the operator selects to link with its demand conforms to most in a plurality of links, the operator clicks this link, and then client 100 generates a request of downloading this document to WEB server 200.
Step 5, control servlet communicates by letter with WEB server 200 outside library servers 300, in library server 300, searches file to be downloaded, and file to be downloaded is saved in the internal memory of WEB server 200.Concrete steps are following: at first, control servlet communicates by letter with the Action foundation in the WEB server 200; Secondly, Action sets up with library server 300 through File Transfer Protocol and communicates by letter; At last, library server 300 is searched file to be downloaded, and control servlet receives the file to be downloaded that library server 300 sends via Action.
Step 6, control servlet is sent to client 100 with file to be downloaded through response.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. file access system; It is characterized in that; Comprise at least one client, at least one WEB server, a library server, a relational database, said WEB server respectively with said client, said relational database, said library server communication;
Said client will be treated through said WEB server that upload file is sent in the said library server and preserve, and receive said WEB server downloaded files in said library server;
Said WEB server is also controlled and is generated the said storage file name of treating upload file, and said storage file name and said is treated that the authentic document name of upload file is sent in the said relational database preserve.
2. according to the described file access system of claim 1, it is characterized in that,
Said file access system also comprises one four layer exchange device, said four layer exchange devices respectively with said client and said WEB server communication,
Said four layer exchange devices receive the upload file request or the file in download request of said client, and said upload file request or file in download request are sent to any in said at least one WEB server.
3. a file uploading method is characterized in that,
The first step, client is extracted the essential information of treating upload file, generates the form list;
In second step, said client is with said form list and saidly treat that upload file is sent on the control servlet of WEB server;
In the 3rd step, said control servlet reads said essential information, and treats that with said upload file is saved in the temporary folder of said WEB server;
In the 4th step, said WEB server controls generates the said storage file name of treating upload file;
In the 5th step, the library server communication of said control servlet and said WEB server outside is treated that upload file is sent in the said library server and is preserved said;
In the 6th step, said WEB server will be said be treated that storage file name, the authentic document name of upload file are sent in the relational database of said WEB server outside and is preserved;
In the 7th step, said control servlet deletes the upload file of treating of preserving in the said temporary folder.
4. according to the described file uploading method of claim 3, it is characterized in that,
Said essential information comprises said authentic document name and/or file type and/or file extension and/or the file size of treating upload file.
5. according to the described file uploading method of claim 3, it is characterized in that,
The said storage file name of upload file of treating is made up of the IP address of WEB server and 36 random numbers that generate through linear congruence random number algorithm.
6. according to the described file uploading method of claim 3, it is characterized in that,
In said the 5th step, said control servlet sets up with said library server according to following steps and communicates by letter,
Steps A 1, said control servlet communicates by letter with the Action foundation in the said WEB server;
Steps A 2, said Action sets up with said library server and communicates by letter;
Steps A 3, said control servlet will treat that upload file is sent to said library server via said Action.
7. a document down loading method is characterized in that,
Step 1, client is sent the file download request to the WEB server;
Step 2, said WEB server are searched file to be downloaded according to said file download request in the outside relational database of said WEB server;
Step 3, said WEB server generate at least one file chaining and are sent to said client according to lookup result;
Step 4, said client are selected file to be downloaded according to user's request in said at least one file chaining, and ask the control servlet in the said WEB server to download this document;
Step 5, the library server communication that said control servlet and said WEB server are outside is searched said file to be downloaded, and said file to be downloaded is saved in the said WEB server in said library server;
Step 6, said control servlet is sent to said client with said file to be downloaded.
8. according to the described file uploading method of claim 7, it is characterized in that,
In the said step 5, said control servlet sets up with said library server according to following steps and communicates by letter,
Step B1, said control servlet communicates by letter with the Action foundation in the said WEB server;
Step B2, said Action set up with said library server and communicate by letter;
Step B3, said library server is sent to said control servlet with the file to be downloaded that finds via said Action.
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| CN103475564A (en) * | 2012-06-06 | 2013-12-25 | 腾讯科技（深圳）有限公司 | Network attachment transmission method and system thereof |
| CN104219261A (en) * | 2013-05-30 | 2014-12-17 | 鸿富锦精密工业（深圳）有限公司 | File download method and system |
| CN105069009A (en) * | 2015-07-06 | 2015-11-18 | 无锡天脉聚源传媒科技有限公司 | Folder uploading/downloading method and device |
| CN105162893A (en) * | 2015-10-16 | 2015-12-16 | 珠海格力电器股份有限公司 | Video file uploading method, uploading system, access method, and access system |
| CN105763604A (en) * | 2016-02-04 | 2016-07-13 | 四川长虹电器股份有限公司 | Lightweight distributed file system and method for recovering original name of downloaded file |
| CN105991671A (en) * | 2015-01-28 | 2016-10-05 | 中兴通讯股份有限公司 | Method of storing files and server |
| CN106230919A (en) * | 2016-07-26 | 2016-12-14 | 广州酷狗计算机科技有限公司 | A kind of method and apparatus of files passe |
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| CN110191182A (en) * | 2019-05-30 | 2019-08-30 | 深圳前海微众银行股份有限公司 | Distributed document batch processing method, device, equipment and readable storage medium storing program for executing |
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| CN103475564A (en) * | 2012-06-06 | 2013-12-25 | 腾讯科技（深圳）有限公司 | Network attachment transmission method and system thereof |
| CN102932463A (en) * | 2012-11-07 | 2013-02-13 | 曙光信息产业股份有限公司 | Method and system for uploading data |
| CN104219261A (en) * | 2013-05-30 | 2014-12-17 | 鸿富锦精密工业（深圳）有限公司 | File download method and system |
| CN105991671A (en) * | 2015-01-28 | 2016-10-05 | 中兴通讯股份有限公司 | Method of storing files and server |
| CN105069009A (en) * | 2015-07-06 | 2015-11-18 | 无锡天脉聚源传媒科技有限公司 | Folder uploading/downloading method and device |
| CN105162893A (en) * | 2015-10-16 | 2015-12-16 | 珠海格力电器股份有限公司 | Video file uploading method, uploading system, access method, and access system |
| CN105763604A (en) * | 2016-02-04 | 2016-07-13 | 四川长虹电器股份有限公司 | Lightweight distributed file system and method for recovering original name of downloaded file |
| CN105763604B (en) * | 2016-02-04 | 2019-03-19 | 四川长虹电器股份有限公司 | Lightweight distributed file system and the method for restoring downloading file original name |
| CN106230919A (en) * | 2016-07-26 | 2016-12-14 | 广州酷狗计算机科技有限公司 | A kind of method and apparatus of files passe |
| CN106230919B (en) * | 2016-07-26 | 2020-03-17 | 广州酷狗计算机科技有限公司 | File uploading method and device |
| CN107566515A (en) * | 2017-09-22 | 2018-01-09 | 郑州云海信息技术有限公司 | A kind of document down loading method and relevant apparatus |
| CN108769127A (en) * | 2018-05-02 | 2018-11-06 | 张东军 | A kind of big file uploading and download process method |
| CN109753813A (en) * | 2019-01-28 | 2019-05-14 | 恒峰信息技术有限公司 | A kind of secure file processing method |
| CN110191182A (en) * | 2019-05-30 | 2019-08-30 | 深圳前海微众银行股份有限公司 | Distributed document batch processing method, device, equipment and readable storage medium storing program for executing |
| CN110191182B (en) * | 2019-05-30 | 2023-04-21 | 深圳前海微众银行股份有限公司 | Distributed file batch processing method, device, equipment and readable storage medium |
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| CN102307219B (en) | 2015-04-08 |
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