Java服务器页面（JSP）技术发展历史与师资管理系统

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"这篇文档是关于基于Java的师资管理系统的外文文献翻译，主要讨论了JavaServer Pages（JSP）的技术发展历程以及与之相关的数据库、JavaBean等方面的基础内容。" 在Java开发领域，JavaServer Pages (JSP) 是一种重要的服务器端技术，它允许开发者在HTML或XML文档中嵌入Java代码，以实现动态网页生成。JSP的出现是对Netscape公司的服务器端JavaScript (SSJS) 和微软的ActiveServer Pages (ASP) 的回应，但相比这两者，JSP具有更好的可扩展性和跨平台性。JSP的标准由Sun公司制定，但任何厂商都可以在其系统上实现JSP，这使得JSP得到了广泛应用。自Sun公司正式发布JSP以来，这种新的Web应用开发技术迅速引起了广泛关注。JSP为Web应用程序提供了构建高度动态状态的特殊开发环境。据Sun公司所述，JSP能适应市场上85%的服务器产品，包括Apache Web Server和IIS 4.0等。本章将详细介绍JSP的相关知识，包括它的核心概念和技术特性。JSP技术允许开发者将业务逻辑与页面展示分离，通过使用指令、脚本元素和动作标签来处理动态内容。此外，文档还将涉及数据库的集成，这是Web应用程序中常见的需求，例如利用JDBC (Java Database Connectivity) 连接数据库，执行SQL查询，以及处理结果集。另一个关键点是JavaBean，它是Java中的一个组件模型，用于封装数据和业务逻辑。JavaBean在JSP中扮演着重要角色，它们可以被声明并实例化在JSP页面中，从而在服务器端执行相关操作。通过属性、构造函数和方法，JavaBean可以方便地在多个组件之间共享数据。这篇文献翻译涵盖了JSP技术的起源、优势以及与数据库和JavaBean的交互，为读者提供了一个基础的指南，帮助他们理解和应用这些技术于师资管理系统的开发中。通过深入学习这些内容，开发者能够更有效地构建和维护动态、健壮的Web应用程序。

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The Servlet is similar to traditional CGI, ISAPI, NSAPI etc. Web procedure development the

function of the tool in fact, at use the Java Servlet hereafter, the customer need not use again

the lowly method of CGI of efficiency, also need not use only the ability come to born page of

Web of dynamic state in the method of API that a certain fixed Web server terrace circulate.

Many servers of Web all support the Servlet, even not support the Servlet server of Web

directly and can also pass the additional applied server and the mold pieces to support the

Servlet. Receive benefit in the characteristic of the Java cross-platform, the Servlet is also a

terrace irrelevant, actually, as long as match the norm of Java Servlet, the Servlet is complete

to have nothing to do with terrace and is to have nothing to do with server of Web. Because

the Java Servlet is internal to provide the service by the line distance, need not start a progress

to the each claimses, and make use of the multi-threading mechanism can at the same time for

several claim service, therefore the efficiency of Java Servlet is very high.

But the Java Servlet also is not to has no weakness, similar to traditional CGI, ISAPI, the

NSAPI method, the Java Servlet is to make use of to output the HTML language sentence to

carry out the dynamic state web page of, if develop the whole website with the Java Servlet,

the integration process of the dynamic state part and the static state page is an evil-foreboding

dream simply. For solving this kind of weakness of the Java Servlet, the SUN released the

JSP.

A number of years ago, Marty was invited to attend a small 20-person industry

roundtable discussion on software technology. Sitting in the seat next to Marty was James

Gosling, inventor of the Java programming language. Sitting several seats away was a high-

level manager from a very large software company in Redmond, Washington. During the

discussion, the moderator brought up the subject of Jini, which at that time was a new Java

technology. The moderator asked the manager what he thought of it, and the manager

responded that it was too early to tell, but that it seemed to be an excellent idea. He went on to

say that they would keep an eye on it, and if it seemed to be catching on, they would follow

his company's usual "embrace and extend" strategy. At this point, Gosling lightheartedly

interjected "You mean disgrace and distend."

Now, the grievance that Gosling was airing was that he felt that this company would take

technology from other companies and suborn it for their own purposes. But guess what? The

shoe is on the other foot here. The Java community did not invent the idea of designing pages

as a mixture of static HTML and dynamic code marked with special tags. For example, Cold

Fusion did it years earlier. Even ASP (a product from the very software company of the

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