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asp體系結(jié)構(gòu)的發(fā)展外文翻譯-jsp程序(存儲(chǔ)版)

  

【正文】 velops a level , in specific application no matter Client end or Server end the software that need to still specify support. Because of the software software that need to develop different edition according to the different system of operating system that can not offer the structure of C/S and the open environment of user genuine expectation , besides, the renovation of product is very rapid, is nearly impossible to already meet the 100 puter above users of local area work at the same time use. Price has low efficiency high. If my courtyard uses , Shanghai exceed the orchid pany39。 附件 2:外文原文(復(fù)印件) The Development Of ASP System Structure Develop Web application program using ASP the architecture that must first establish Web application. Now in application frequently with to have two: The architecture of C/S and the architecture of 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 good software architecture, it is the one of best application pattern of work. From technology, see that it is a logic concept, denote will a application many tasks of deposing difference carry out , mon pletion is entire to apply the function of task. On each work main puter of web site, resource ( hardware, software and data ) divide into step, is not balanced, under customer / server structure, without the client puter of resource through sending request to the server that has resource , get resource request, so meet the resource distribution in work not balancedness. With this kind of structure, can synthesize various puters to cooperate with work, let it each can, realize the scale for the system of puter optimization ( Rightsizing ) with scale reduce to melt ( Downsizing ). Picture is as follows: It is most of to divide into puter work application into two, in which the resource and function that part supports many users to share , it is realized by server。 大家都知道 windows 在桌面電腦上幾乎一統(tǒng)天下,瀏覽器成為了標(biāo)準(zhǔn)配置,但在服務(wù)器操作系統(tǒng)上 windows 并不是處于絕對(duì)的統(tǒng)治地位。 B/S 架構(gòu)軟件的優(yōu)勢(shì)與劣勢(shì) (1)維護(hù)和升級(jí)方式簡(jiǎn)單。 在數(shù)據(jù)庫(kù)應(yīng)用中,數(shù)據(jù)的儲(chǔ)存管理功能,是由服務(wù)器程序和客戶(hù)應(yīng)用程序分別獨(dú)立進(jìn)行的,前臺(tái)應(yīng)用可以違反的規(guī)則,并且通常把那些不同的 (不管是已知還是未知的 )運(yùn)行數(shù)據(jù),在服務(wù)器程序中不集中實(shí)現(xiàn),例如訪問(wèn)者的權(quán)限,編號(hào)可以重復(fù)、必須有客戶(hù)才能建立定單這樣的規(guī)則。 C/S 是美國(guó) Borland公司最早研發(fā), B/S 是美國(guó)微軟公司研發(fā)。以 目前的技術(shù)看,局域網(wǎng)建立 B/S 結(jié)構(gòu)的網(wǎng)絡(luò)應(yīng)用,并通過(guò) Inter/Intra 模式下數(shù)據(jù)庫(kù)應(yīng)用,相對(duì)易于把握、成本也是較低的。由于沒(méi)能提供用戶(hù)真正期望的開(kāi)放環(huán)境, C/S 結(jié)構(gòu)的軟件需要針對(duì)不同的操作系統(tǒng)系統(tǒng)開(kāi)發(fā)不同版本的軟件, 加之產(chǎn)品的更新?lián)Q代十分快,已經(jīng)很難適應(yīng)百臺(tái)電腦以上局域網(wǎng)用戶(hù)同時(shí)使用。由此我們選擇 B/S 架構(gòu)作為系統(tǒng)開(kāi)發(fā)的體系結(jié)構(gòu)。 Browser/Server 用戶(hù)的界面都統(tǒng)一在瀏覽器上,瀏覽器易于使用、界面友好,不須再學(xué)習(xí)使用其它的軟件,一勞永逸的解決了用戶(hù)的使用問(wèn)題。由于客戶(hù)機(jī)把事務(wù)處理邏輯部分分給了功能服務(wù)器,使客戶(hù)機(jī)一下子“苗條”了許多,不再負(fù)責(zé)處理復(fù)雜計(jì)算和數(shù) 據(jù)訪問(wèn)等關(guān)鍵事務(wù),只負(fù)責(zé)顯示部分,所以維護(hù)人員不再為程序的維護(hù)工作奔波于每個(gè)客戶(hù)機(jī)之間,而把主要精力放在功能服務(wù)器上程序的更新工作。 在功能層中包含系 統(tǒng)的事務(wù)處理邏輯,位于 Web 服務(wù)器端。 B/S 體系結(jié)構(gòu)即 Browser/Server,瀏覽器 /服務(wù)器端。如在進(jìn)行文件傳輸時(shí),如果把提供文件的一方稱(chēng)為服務(wù)器,把獲取文件的一方稱(chēng)為客戶(hù),則 在使用 get 或 mget 命令從另一個(gè)節(jié)點(diǎn)取文件時(shí),可以認(rèn)為自己使用的及其是客戶(hù)機(jī),在使用 put 或 mput命令向另一個(gè)節(jié)點(diǎn)發(fā)送文件時(shí)又可以認(rèn)為自己使用的機(jī)器是服務(wù)器。如下圖: 從技術(shù)角度講,“客戶(hù)機(jī)”和“服務(wù)器”都是邏輯的概念,其含義是:將計(jì)算機(jī)網(wǎng)絡(luò)應(yīng)用分成兩大部分,其中一部分支持多個(gè)用戶(hù)共享的功能與資源,它由服務(wù)器來(lái)實(shí)現(xiàn);另一部分是面向每個(gè)用戶(hù)的,由客戶(hù)機(jī)來(lái)實(shí)現(xiàn),也就是說(shuō),客戶(hù)機(jī)通常執(zhí)行前臺(tái)功能,通過(guò)用戶(hù)界面實(shí)現(xiàn)人機(jī)對(duì)話(huà),或是執(zhí)行用戶(hù)特定的應(yīng)用程序。附件 1:外文資料翻譯譯文 ASP 體系結(jié)構(gòu)的發(fā)展 利用 ASP 開(kāi)發(fā) Web 應(yīng)用程序首先必須確立 Web 應(yīng)用的體系結(jié)構(gòu)。 兩層的客戶(hù) /服務(wù)器結(jié)構(gòu)。 客戶(hù) /服務(wù)器類(lèi)型把計(jì)算機(jī)分為兩類(lèi),提供 服務(wù)的一方稱(chēng)為服務(wù)器,請(qǐng)求服務(wù)的一方稱(chēng)為客戶(hù)。新的客戶(hù)應(yīng)用負(fù)責(zé)用戶(hù)界面和簡(jiǎn)單固定的業(yè)務(wù)邏輯,新的服務(wù)器應(yīng)用駐留核心的、易變的業(yè)務(wù)邏輯。 Browser/Server 結(jié)構(gòu)極大的簡(jiǎn)化了客戶(hù)機(jī)的工作,客戶(hù)機(jī)上只需安裝、配置少量的客戶(hù)端軟件即可, 服務(wù)器將擔(dān)負(fù)更多的工作,對(duì)數(shù)據(jù)庫(kù)的訪問(wèn)和應(yīng)用程序的執(zhí)行將在服務(wù)器上完成。 在數(shù)據(jù)層中包含系統(tǒng)的數(shù)據(jù)處理邏輯,位于數(shù)據(jù)庫(kù)服務(wù)器端。 兩種體系結(jié)構(gòu)的對(duì)比 : Browser/Server 體系結(jié)構(gòu)與 Client/Server 體系結(jié)構(gòu)相比不僅具有 Client/Server 體系結(jié)構(gòu)的全部?jī)?yōu)點(diǎn),而且又有 Cli/Server 體系結(jié)構(gòu)所不具備 的獨(dú)特優(yōu)勢(shì): 開(kāi)放的標(biāo)準(zhǔn): Client/Server 所采用的標(biāo)準(zhǔn)只要在內(nèi)部統(tǒng)一就可,它的應(yīng)用往往是專(zhuān)用的。 系統(tǒng)靈活: Client/Server 系統(tǒng)的三部分模塊中有一部分需改變就要關(guān)聯(lián)到其它模塊的變動(dòng),使系統(tǒng)極難升級(jí)。 C/S (Client/Server)結(jié)構(gòu),即大家熟知的客戶(hù)機(jī)和服務(wù)器結(jié)構(gòu)。 (2)什么是 B/S 結(jié)構(gòu)。特別是在 JAVA 這樣的跨平臺(tái)語(yǔ)言出現(xiàn)之后, B/S 架構(gòu)管理軟件更是方便、快捷、高效。 最簡(jiǎn)單的 C/S 體系結(jié)構(gòu)的數(shù)據(jù)庫(kù)應(yīng)用由兩部分組成,即客戶(hù)應(yīng)用程序和數(shù)據(jù)庫(kù)服務(wù)器程序。在 C/S 體系的下,數(shù)據(jù)庫(kù)不能真正成為公共、專(zhuān)業(yè)化的倉(cāng)庫(kù),它受到獨(dú)立的專(zhuān)門(mén)管理。無(wú)論用戶(hù)的規(guī)模有多大,有多少分支機(jī)構(gòu)都不會(huì)增加任何維護(hù)升級(jí)的工作量,所有的操作只需要針對(duì)服務(wù)器進(jìn)行;如果是異地,只需要把服務(wù)器連接專(zhuān)網(wǎng)即可,實(shí)現(xiàn)遠(yuǎn)程維護(hù)、升級(jí)和共享。 比如說(shuō)很多人每天上 “新浪”網(wǎng),只要安裝了瀏覽器就可以了,并不需要了解“新浪”的服務(wù)器用的是什么操作系統(tǒng),而事實(shí)上大部分網(wǎng)站確實(shí)沒(méi)有使用 windows操作系統(tǒng),但用戶(hù)的電腦本身安裝的大部分是 windows 操作系統(tǒng)。 It is even in one time dialogue course, mutual role also exchanges probably. As in carry out file transmission , if be called as one side who offers file server, is called as one side who gets file customer, when using get or mget order since another node takes file, can think that what self use and it is client puter , is using put or mput order to another node dispatch file can again think the machine that used self is server. Multilayer customer / server structure Along with the development of enterprise application, recently, have again arisen a kind of new multilayer architecture, it applies customer end to divide into two minutes: Customer application and server apply. Customer application is the part of original customer application , is another and partial to have been transfered to server to apply. New customer application takes the responsibility for user interface and simple regular business logic and new server application resident core , changeable business logic. Therefore its structure has bee new ( Client application + Server application )/Server structure. Following picture shows: This kind of structure has solved traditional Client/Server can expand problem, have reduced customer end business logic , and have reduced the requirement of customer end for hardware. At the same time because of a lot of business logic concentrations have gone to unitary application server on, the maintenance work of application system had been also concentrated together, have eliminated the problem in the traditional structure of Client/Server that software distributes. This kind of structure is called as the architecture of B/S. Browser/Server and browser / server hold the architecture of B/S. On essence, Browser/Server is also a kind of structure of Client/Server, it is a kind of from the traditional two levels of structural develop
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