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jsp毕业[CQVIP免费论文网]谈文英文资料(二)

时间: 2016-7-18 10:09:00    作者: 佚名    来源:中国论文    查看:

ComparedwiththetraditionalCGI,theJSPhastheequaladvantage.First,onthespeed,thetraditionalprocedureofCGIneedstousethestandardimportationofthesystemtoout...

Compared with the traditional CGI, the JSP has the equal advantage.First, on the speed, the traditional procedure of CGI needs to use the standard importation of the system to output the equipments to carry out the dynamic state web page born, but the JSP is direct is mutually the connection with server.And say for the CGI, each interview needs to add to add a progress to handle, the progress build up and destroy by burning constantly and will be a not small burden for calculator of be the server of Web.The next in order, the JSP is specialized to develop but design for the Web of, its purpose is for building up according to the Web applied procedure, included the norm and the tool of a the whole set.Use the technique of JSP can combine a lot of JSP pages to become a Web  application procedure very expediently.

Why use JSP, instead of using other technologies? Our first reaction is that we are not arguing about all the people should be done. These other technologies, there are some very good, in some cases, is indeed a reasonable choice. However, in other cases, JSP is significantly better. Here are a number of reasons.

With. NET and Active Server Pages (ASP) compared to

. NET is Microsoft designed a technology. ASP.NET is a direct competition with the servlets and JSP technology. The advantages of JSP is reflected in two aspects.

First of all, JSP can be ported to multiple operating systems and Web servers, you do not have to be limited to be deployed in Windows and IIS on the core though. NET platform can be several non-Windows platforms, but not this part of the ASP. You can expect to be important ASP.NET application deployment to multiple servers and operating systems. For certain applications, such differences have little impact. However, some applications, this difference is very important.

Secondly, for some applications, the underlying choice of language is essential. For example, while. NET's C # language design quality, and, and Java is similar, but are familiar with the core of C # syntax and various tools for database programmers rarely. In addition, many developers still use the original version of the ASP. Compared to this version, JSP dynamic code has a clear advantage. The use of JSP, dynamic part is written in Java, rather than VBScript in other ASP proprietary language, so JSP is more robust, more suitable for complex applications require the reuse of components.

When the JSP comparison with previous versions of ColdFusion, you may get the same conclusion. Application JSP, you can use the Java write "real code", do not have to rely on a specific server products. However, the current version of ColdFusion to meet the J2EE server environment that allows developers to easily mix of ColdFusion and Servlet / JSP code.

Compared with the PHP

PHP ( "PHP: Hypertext Preprocessor" recursive acronym) is a free, open source, HTML embedded scripting language which, with ASP and JSP are similar to some extent. One advantage of JSP is a dynamic part of the preparation to use Java, but Java has been in networking, database access, distributed objects, etc. have a wide range of API, and PHP need to learn new, application of a relatively wide range of languages. The second advantage of JSP, and PHP comparison, JSP has a very wide range of tools and server providers.

Compared with pure Servlet

In principle, JSP and Servlet do not provide the function can not be completed. In fact, JSP documents are automatically converted in the background Servlet. But the writing (and modify) the conventional HTML, than the numerous println statements to generate the HTML easier. In addition, by separating content that can be assigned to different people for different tasks: Web designers to use familiar tools to build HTML, or leave space for Servlet programmers insert dynamic content, or indirectly through the XML tags called dynamic content.


  


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