外文翻译---JSP动态网站技术
附录3 J SP dynamic web technology
JSP (JavaServer Pages) is initiated by Sun Microsystems, Inc., with many companies to participate in the establishment of a dynamic web page technical standards. JSP technology somewhat similar to ASP technology, it is in the traditional HTML pages in the document paragraph inrted JAVA procedures (Scriptlet) and JSP tag (tag), thus JSP documents. Using JSP development of the Web application is cross-platform that can run on Linux, is also available for other operating systems.
JSP technology to u the Java programming language prepared by the category of XML tags and scriptlets, to produce dynamic pages package processing logic. Page also visit by tags and scriptlets exist in the rvices side of the resources of logic. JSP page logic and web page design and display paration, support reusable component-bad design, Web-bad application development is rapid and easy.
Web rver in the face of visits JSP page request, the first implementation of the procedures of, and then together with the results of the implementation of JSP documents in HTML code with the return to the customer. Inrt the Java programming operation of the databa can be re-oriented websites, in order to achieve the establishment of dynamic pages needed to function. JSP and Java Servlet, is in the implementation of the rver, usually returned to the client is an HTML text, as long as the client browr will be able to visit.
JSP 1.0 specification of the final version is launched in September 1999, December has introduced 1.1 specifications. At prent relatively new is JSP1.2 norms, JSP2.0 norms of the draft has also been introduced. JSP pages from HTML code and Java code embedded in one of the components. The rver was in the pages of client requests after the Java code and then will generate the HTML pages to return to the client browr. Java Servlet JSP is the technical foundation and large-scale Web application development needs of Java Servlet and JSP support to complete. JSP with the Java technology easy to u, fully object-oriented, and a platform-independent and cure, ma
inly for all the characteristics of the Internet.
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生命健康JSP dynamic web site development and technology.
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Early dynamic web site development and technology using a CGI-BIN interface. Developers to write interfaces with the relevant procedures and a parate Web-bad applications, the latter through the Web rver to call the former. This development technology there is a rious expansion of the problem - each new CGI procedural requirements on the rver add a new process. If multiple urs with access to the program, the process will run out of the Web rver all the resources available, until its collap. In order to overcome the disadvantages of the propod Microsoft Active Server Pages (ASP) technology, which u the "plug-in" and API simplifies Web application development. CGI and ASP compared to its advantages can include HTML tags, can directly access the databa and the u of unlimited expansion of the ActiveX control, so the procedure on the preparation of a more flexible. But the technology is basically limited to Microsoft operating system platform, the main work environment is Mi
crosoft's IIS application structure, the ASP technology can not easily achieve cross-platform Web rver program development.
Hypertext Preprocessor (Hypertext Pre-processor), PHP dynamic web site development and technology similar to ASP, is also a kind of embedded in HTML document rver-side scripting language. Most of its grammar and C, Java, Perl, and other similar language and formed its own unique style, u of the language Web programmers can quickly develop dynamic pages. PHP in most Unix platforms, GUN / Linux and Microsoft Windows platform can run. PHP's main advantages are: ea of installation, the learning process simple databa connection convenience, compatibility strong expansion of the strong can object-oriented programming, and so on. However, PHP, there are some weakness, mainly PHP is an interpretation of language, not to support multi-threaded structure, the support platform and databa connections are limited, especially in support of the standards with regard to inherent weakness, for some e-commerce applications , PHP is not appropriate.
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There are also technologies such as Java Servlets technology, make u of the technology can be easily prepared using the Java language interactive rver-side code. A Java Servlets is a Java-bad technology running on the rver-side program (and Applet different, the latter running in the browr). Developers to write such a Java Servlets, to receive from the Web
browr's HTTP request, to generate a dynamic respon (may need to query the databa to complete such a request), then nd HTML or XML documents respon to the browr. The technology for ordinary pages designers to easily grasp it is very difficult. This approach, the entire page in the Java Servlets are to be created. If the developers or managers want to adjust Web pages that have to edit and re-build the Java Servlets.思明州
Sun Microsystems (Sun Microsystems Inc.) In Web rvers, application rvers, the trading system and development tools provider of broad support and cooperation, integration and balance already exists in the Java programming environment (such as Ja
va Servlets and JavaBeans) To support the technology and tools have a new, Web-bad application development methods - JavaServer Pages Technology (JSP). This dynamic web site development and technology mainly have the following characteristics:离婚调解书
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