asp外文翻譯+原文

1、ASP 外文翻譯+原文 xinxiasd1ASP ASP外文翻譯 外文翻譯+原文 原文ENGLISHE ENGLISHE：Develop Develop Web Web application application program program using using ASP ASP the the architecture architecture that that must must first first

2、establish establish Web Web application. application. Now Now in in application application frequently frequently with with to to have have two: two: The The architecture architecture of of C/S C/S and and the the archit

3、ecture architecture of of B/S. B/S. Client/server and customer end / server hold the architecture of C/S. The customer / server structure of two floor. Customer / server ( Client/Server ) model is a kind of go

4、od software architecture, it is the one of best application pattern of network. From technology, see that it is a logic concept, denote will a application many tasks of decomposing difference carry out , comm

5、on completion is entire to apply the function of task. On each network main computer of web site, resource ( hardware, software and data ) divide into step, is not balanced, under customer / server struc

6、ture, without the client computer of resource through sending request to the server that has resource , get resource request, so meet the resource distribution in network not balancedness. With this kind of st

7、ructure, can synthesize various computers to cooperate with work, let it each can, realize the scale for the system of computer optimization ( Rightsizing ) with scale reduce to melt ( Downsizing ). Picture is as

8、follows: It is most of to divide into computer network application into two, in which the resource and function that part supports many users to share , it is realized by server; Another part faces every use

9、r , is realized by client computer, also namely, client computer is usual to carry out proscenium function , realizes man-machine interaction through user interface , or is the application program of specific

10、conducted user. And server usually carries out the function of backstage supporter , manages the outside request concerning seting up, accepting and replying user that shared. For a computer, it can have do

11、uble function , is being certain and momentary to carve to act as server , and again becomes client computer in another time. Customer / server type computer divide into two kinds, one side who offers serv

12、ice is called as server , asks one side of service to be called as customer. To be able to offer service, server one side must have certain hardware and corresponding server software; Als

13、o, customer one side must ASP 外文翻譯+原文 xinxiasd3essence, Browser/Server is also a kind of structure of Client/Server, it is a kind of from the traditional two levels of structural development of Client/Server come to

14、 the three-layer structural special case of Client/Server that applied on Web. In the system of Browser/Server, user can pass through browser to a lot of servers that spread on network to send request. The structure of

15、Browser/Server is maximum to have simplified the work of client computer, on client computer, need to install and deploy few customer end software only , server will bear more work, for database visit and appl

16、y program carry out will in server finish. Under the three-layer architecture of Browser/Server, express layer ( Presentatioon ) , function layer ( Business Logic ) , data layer ( Data Service ) have been cut the unit o

17、f 3 relative independences: It is the first layer of to express layer: Web browser. In expressing layer contain system show logic, locate in customer end. It's task is to suggest by Web browser to the certa

18、in a Web server on network that service is asked , after verifying for user identity, Web server delivers needed homepage with HTTP agreement to customer end, client computer accept the homepage file that passed , and s

19、how it in Web browser on. Second layer function layer: Have the Web server of the application function of program extension. In function layer contain the systematic handling of general affairs logic, locate in

20、Web server end. It's task is the request concerning accepting user , need to be first conducted and corresponding to expand application program and database to carry out connection , passes through the waie

21、s such as SQL to database server to put forward data handling to apply for, then etc. database server the result of handling data submit to Web server, deliver again by Web server to return customer end. The number of

22、plies of 3th according to layer: Database server. In data layer contain systematic data handling logic, locate in database server end. It's task is to accept the request that Web server controls for database, re

23、alization is inquired and modified for database , update etc. function, submit operation result to Web server. Careful analysis is been easy to see , the architecture of Browser/Server of three-layer is the handli

24、ng of general affairs of the two levels of structure of Client/Server logic modular from the task of client computer in split , from the first floor of individual composition bear the pressure of its task an

25、d such client computer have alleviated greatly, distribute load balancedly and have given Web server, so from the structural change of Client/server of original two floor the structure of Browser/Server of th