图书管理系统外文翻译---将Servlet和JSP组合使用

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1、1 重庆三峡学院 毕业设计 (论文 )外文资料翻译 设计 (论文 )题目 图书管理系统 院 系 计算机科学与工程学院 专 业 计算机科学与技术 年 级 2009 级 1 班 学生学号 2008908112 学生姓名 管金凤 外文出处 CHINA-USA Business Review 指导教师评语： 签名： 年 月 日 2 Combining JSP and Servlets The technology of JSP and Servlet is the most important technology which use Java technology to exploit reques

2、t of server, and it is also the standard which exploit business application .Java developers prefer to use it for a variety of reasons, one of which is already familiar with the Java language for the development of this technology are easy to learn Java to the other is a preparation, run everywhere

3、to bring the concept of Web applications, To achieve a one-prepared everywhere realized. And more importantly, if followed some of the principles of good design, it can be said of separating and content to create high-quality, reusable, easy to maintain and modify the application. For example, if th

4、e document in HTML embedded Java code too much (script), will lead the developed application is extremely complex, difficult to read, it is not easy reuse, but also for future maintenance and modification will also cause difficulties. In fact, CSDN the JSP / Servlet forum, can often see some questio

5、ns, the code is very long, can logic is not very clear, a large number of HTML and Java code mixed together. This is the random development of the defects. Early dynamic pages mainly CGI (Common Gateway Interface, public Gateway Interface) technology, you can use different languages of the CGI progr

6、ams, such as VB, C / C + + or Delphi, and so on. Though the technology of CGI is developed and powerful, because of difficulties in programming, and low efficiency, modify complex shortcomings, 3 it is gradually being replaced by the trend. Of all the new technology, JSP / Servlet with more efficien

7、t and easy to program, more powerful, more secure and has a good portability, they have been many people believe that the future is the most dynamic site of the future development of technology. Similar to CGI, Servlet support request / response model. When a customer submit a request to the server,

8、 the server presented the request Servlet, Servlet responsible for handling requests and generate a response, and then gave the server, and then from the server sent to the customer. And the CGI is different, Servlet not generate a new process, but with HTTP Server at the same process. It threads th

9、rough the use of technology, reduce the server costs. Servlet handling of the request process is this: When received from the clients request, calling service methods, the method of Servlet arrival of the first judgement is what type of request (GET / POST / HEAD), then calls the appropriate treatme

10、nt (DoGet / doPost / doHead) and generate a response. Although such a complex, in fact, simply said to Servlet is a Java class. And the general category of the difference is that this type operating in a Servlet container, which can provide session management and targeted life-cycle management. So t

11、hat when you use the Servlet, you can get all the benefits of the Java platform, including the safety of the management, use JDBC access the database and cross-platform capability. Moreover, Servlet using thread, and can develop more efficient Web applications. JSP technology is a key J2EE technology, it at a higher level of abstraction of a Servlet.