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jsp中英文翻譯---jsp的技術(shù)發(fā)展歷史-jsp程序(存儲(chǔ)版)

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【正文】 set. Use the technique of JSP can bine a lot of JSP pages to bee a Web application procedure very expediently. 大連交通大學(xué) 2021 屆本科生畢業(yè)設(shè)計(jì)(論文)外文翻譯 7 JSP 的技術(shù)發(fā)展歷史 作者: Kathy Sierra and Bert Bates 來源: Servletamp。 概述 JSP(Java Server Pages)是由 Sun Microsystems 公司倡導(dǎo)、許多公司參與一起建立的一種動(dòng)態(tài)網(wǎng)頁技術(shù)標(biāo)準(zhǔn),其在動(dòng)態(tài)網(wǎng)頁的建設(shè)中有其強(qiáng)大而特別的功能。畢竟,在特定平臺(tái)上能夠用 Java 編程語言完成的事情,同樣可以用匯編語言來完成,但是選擇哪種語言依舊十分重要。對(duì)于大型的項(xiàng)目,這種劃分極為重要。 Java Servlet 是 JSP 技術(shù)的基礎(chǔ),而且大型的 Web 應(yīng)用程序的開發(fā)需要 Java Servlet和 JSP配合才能完成, Servlet 這個(gè)名稱源于 Applet,現(xiàn)在國(guó)內(nèi)的翻譯方式很多,本 書為了避免誤會(huì),決定直接采用 Servlet 而不做任何翻譯,讀者如果愿意,可以稱之為“小服務(wù)程序”。隔幾個(gè)位置 ,是來自華盛頓一家大型軟件公司的高級(jí)經(jīng)理。實(shí)際上 ,JSP 不只采用了這種通用概念 ,它甚至使用許多和 ASP 相同的特殊標(biāo)簽。JavaBeans 類完成數(shù)據(jù)提供,這樣在模板中就沒有 Java 代碼,這意味著這些模板可以由一個(gè) HTML 編寫人員來維護(hù)。 SSJS 和 ASP 都是在幾年前推出的,那時(shí)網(wǎng)絡(luò)還很年輕,沒有人知道除了把所有的商務(wù)、數(shù)據(jù)和表達(dá)邏輯統(tǒng)統(tǒng)堆進(jìn)原始網(wǎng)頁中之外還有什么更好的解決方法。 與此同時(shí),人們一直在尋找建立 Web 應(yīng)用程序的更好方法,組件在客戶機(jī) /服務(wù)器領(lǐng)域流行起來。 現(xiàn)在來看看 JSP 是如何處理 HTTP 請(qǐng)求的。因?yàn)?Servlet 是編譯過的,所以網(wǎng)頁中的 JSP 代碼不需要在每次請(qǐng)求該頁時(shí)被解釋一遍。 I:關(guān)于對(duì)象的介紹 Why has objectoriented programming had such a sweeping impact on the software development muity? 為什么面向?qū)ο笳Z言有如此廣泛的影響力之于軟件開發(fā)社區(qū)? Objectoriented programming appeals at multiple levels. For managers, it promises faster and cheaper development and maintenance. For analysts and designers, the modeling process bees simpler and produces a clear, manageable design. For programmers, the elegance and clarity of the object model and the power of objectoriented tools and libraries makes programming a much more pleasant task, and programmers experience an increase in productivity. Everybody wins, it would seem. If there’s a downside, it is the expense of the learning curve. Thinking in objects is a dramatic departure from thinking procedurally, and the process of designing objects is much more challenging than procedural design, especially if you’re trying to create reusable objects. In the past, a novice practitioner of objectoriented programming was faced with a choice between two daunting tasks: 1. Choose a language such as Smalltalk in which you had to learn a large library before being productive. 2. Choose C++ with virtually no libraries at all,1 and struggle through the depths of the language in order to write your own libraries of objects. 面向?qū)ο蟪绦蛟O(shè)計(jì)吸引著多個(gè)層面。 選擇一個(gè)像是 C++語言一樣的語言,幾乎沒有任何的庫。 The Chapter will introduce many of ideas of Java and Objectoriented programming on a conceptual level, but keep in mind that you’re not expected to be able to write fullfledged Java Programs after reading this chapter. All the detailed descriptions and examples will follow throughout the course of this book. 這一章將會(huì)在概念層面上引導(dǎo)你去接觸很多 Java 和面向?qū)ο蟪绦蛟O(shè)計(jì)思想,但是不要指望通過閱讀這一章就寫出一個(gè)完整的 java 程序。這種努力需要?jiǎng)?chuàng)建一個(gè)關(guān)聯(lián)圖,這其實(shí)是程序設(shè)計(jì)語言本身之外的東西,創(chuàng)建程序變得難于書寫而且需要花費(fèi)昂貴的代價(jià)用于維護(hù),這對(duì)于整個(gè)程序設(shè)計(jì)方法工業(yè)是一個(gè)副作用。這種程度的表示形式基本上足夠程序員不受約束的處理各種特殊類型的問題。以上這些每一種都是為了達(dá)到一個(gè)處理特殊種類問題的目的而創(chuàng)建,一旦你的問題在其處理范圍之外,它們將不再有用武之地。這些語言是在匯編語言之上的一個(gè)大的提升,但是它們的主要抽象依據(jù)仍然是匯編語言,我們?nèi)匀灰诳紤]如何用程序解決問題的同時(shí)考慮程序在計(jì)算機(jī)結(jié)構(gòu)上的實(shí)現(xiàn)。因此,對(duì)于大多數(shù)程序員來說主要的工作是使用這些現(xiàn)成的對(duì)象去處理他們的程大連交通大學(xué) 2021 屆本科生畢業(yè)設(shè)計(jì)(論文)外文翻譯 12 序所要解決的問題。用對(duì)象的方式來思考問題相比于過程化的思考問題 方式有著很大的差別,而且設(shè)計(jì)一個(gè)對(duì)象比起設(shè)計(jì)一個(gè)過程來說是一個(gè)很大的挑戰(zhàn),特別是當(dāng)你要設(shè)計(jì)一個(gè)可復(fù)用的對(duì)象( reusable objects)的時(shí)候。其次, JSP 是專門為 Web 開發(fā)而設(shè)計(jì)的,其目的是為了建立基于 Web 的應(yīng)用程序,其中包含了一整套的規(guī)范和工具。這些代碼塊被 JSP 引擎組織到用戶看不到的 Java Servlet 中去,然后 Servlet 自動(dòng)把它們編譯成 Java 字節(jié)碼。非 Java 開發(fā)者可以通過 JSP 的標(biāo)簽 (Tags)來使用高級(jí) Java 開發(fā)者創(chuàng)建的 JavaBeans。 HTML 和圖形設(shè)計(jì)師把它們的設(shè)計(jì)的實(shí)施工作交給了 Web 編寫者,使他們不得不加倍工作 —— 常常是手工編寫,因?yàn)闆]有合適的工具可以把服務(wù)器端腳本與 HTML 內(nèi)容結(jié)合起來。按照 JSP規(guī)范書寫,和 Java 沒有任何關(guān)系的 Scriptlet 也是可以的,不過,由于 JSP 的強(qiáng)大功能主要在于能和 JavaBeans、 Enterprise JavaBeans 共同運(yùn)轉(zhuǎn),所以即使是 Scriptlet 部分不使用Java,編 譯成的執(zhí)行代碼也應(yīng)該是與 Java 相關(guān)的。 作為一種基于文本的、以顯示為中心的開發(fā)技術(shù), JSP 提供了 Java Servlet 的所有好處,并且, 當(dāng)與一個(gè) JavaBeans 類結(jié)合在一起時(shí), JSP 提供了一種使內(nèi)容和顯示邏輯分開的簡(jiǎn)單方式。 ColdFusion 多年前就已經(jīng)這樣做了。為了解決 Java Servlet 的這種缺點(diǎn), SUN 推出了 JSP。 JSP 的由來 Sun 公司的 JSP 技術(shù),使 Web 頁面開發(fā)人員可以使用 HTML 或者 XML 標(biāo)識(shí)來設(shè)計(jì)和格式化最終頁面。 Java 程序員可以致力于動(dòng)態(tài)代碼。然而,這種底層的等同性并不意味著 servlet 和 JSP 頁面對(duì)于所有的情況都等同適 用。按照 Sun的說法, JSP 能夠適應(yīng)市場(chǎng)上包括 Apache WebServer、 在內(nèi)的 85%的服務(wù)器產(chǎn)品。PHP3 → PHP4. In the JSP norm book, did not request the procedure in the JSP code part( be called the Scriptlet) and must write with the Java definitely. Actually, have some engines of JSP are adoptive other script languages such as the EMAC Script, etc., but actually this a few script languages also are to set up on the Java, edit and translate for the Servlet to carry out of. Write according to the norm of JSP, have no Scriptlet of relation with Java also is can of, however, mainly lie in the ability and JavaBeans, the Enterprise JavaBeanses because of the JSP strong function to work together, so even is the Scriptlet part not to use the Java, edit and translate of performance code also should is related with Java. MECHANISM To prehend the JSP how unite the technical advantage that above various speak of, e to carry out various result easily, the customer must understand the differentiation of the module develops for the web page of the center and the page develops for the web page of the center first. The SSJS and ASP are all in several year ago to release, the work of that time is still very young, no one knows to still have in addition to making all business, datas and the 大連交通大學(xué) 2021 屆本科生畢業(yè)設(shè)計(jì)(論文)外文翻譯 5 expression logic enter the original web page entirely heap what better solve the method. This kind of model that take page as the center studies and gets the very fast development easily. However, along with change of time, the people know that this kind of method is unwell in set up large, the Web that can upgrade applies the procedure. The expression logic write in the script environment was lock in the page, only passing to shear to slice and glue to stick then can drive heavy use. Express the logic to usually mix together with business and the data logics, when this makes be the procedure member to try to change an external appearance that applies the procedure but do not want to break with its llied business logic, apply the procedure of maintena
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