【正文】 t the dynamic website first choice plan. carries on the content production and the demonstration separates With the JSP technology, the Web page development personnel may use HTML or the XML marking design and the formatted final page, and uses the JSP marking or the tootsy produces on page39。s dynamic content originally. Production content39。s logic is sealed in marks and in the JavaBeans module, and ties up in the script, all scripts in server end movement. Because core logic is sealed in marks and in JavaBeans, therefore the Web administrative personnels and the page designer, can edit and use the JSP page, but does not affect the content the production. In the server end, the JSP engine explained that the JSP marking and the script, produce the content which requested, and (or XML) page39。s form transmits the result by HTML the browser. This both are helpful in the author protects own code, and can guarantee any based on the HTML Web browser39。s plete usability. may entrust with heavy responsibility the module The overwhelming majority JSP page relies on may entrust with heavy responsibility, the cross platform module (JavaBeans or Enterprise the JavaBeans module) carries out plex processing which the application procedure requests. The development personnel can share and exchange the execution ordinary operation the module, or causes these modules uses for more users and the customer association. Has accelerated the overall development process based on module39。s method, and causes each kind of anization obtains balanced in their existing skill and in the optimized result development endeavor. uses marking The Web page development personnel will not be the familiar script language programmers. The JSP technology has sealed many functions, these functions are easy to use, marking to carry on the dynamic content production with JSP in the related XML to need. The standard JSP marking can visit and the instantiation JavaBeans module, the establishment or the retrieval module attribute, downloads Applet, as well as the execution difficulty with codes and the timeconsuming function with other methods. adapts the platform Nearly all platforms support Java, JSP+JavaBeans to be possible to pass unimpeded nearly under all platforms. Transplants from a platform to other platform, JSP and JavaBeans does not even need to translate, because the Java byte code is standard has nothing to do with the platform. database connection In Java connects the database the technology is the JDBC, Java procedure is connected through the JDBC driver and the database, operations and so on execution inquiry, extraction data. Sun Corporation has also developed JDBCODBC bridge, uses this technical Java procedure to be possible to visit has the ODBC driver database, at present the majority database systems have the ODBC driver, therefore the Java procedure can visit such as Oracle, Sybase, MS SQL Server and databases and so on MS Access. In addition, through the development marking storehouse, the JSP technology may further expand. The third party development personnel and other personnel may found their marking storehouse for the monly used function. This enables the Web page development personnel to be able to use the familiar tool and to be similar to marking same carries out the specific function ponent to carry on the work. The JSP technology very easy conformity to many kinds of application architecture, to use the extant tool and the skill, and can expand to the support enterprise distributional application.3 Eclipse function synopsis More and more Java development personnel already started the productivity which and the quality ine appreciates Eclipse JDT to provide. It was the Java editor provides grammar Gao Liang to demonstrate that the formatting, the fold, the content were auxiliary, code template and so on many functions. It grows unceasingly available restructuring and the code generation function set permits you in a higher rank the operation code, and automated usual code intensity duty and easy wrong duty. Moreover, in develops the code and uses JDT to pile and to carry out the JUnit test builtin support carries on the unit testing after the code, may use Eclipse the firstclass Java debugger debugging when the movement meets any question. Besides JDT, Eclipse SDK the most popular downloading also contains Plugin Development Environment(PDE). PDE used the specific function to expand JDT to construct the Eclipse plugin unit based on the Eclipse application procedure basic construction agglomeration. In fact, uses the tool which provides by Eclipse itself to be able to surmount the Java development, may expand the existing Eclipse application procedure, or even founds the brandnew application procedure. Eclipse by a script level constitution, contains in many functional modules or the Eclipse terminology socalled “the plugin unit”. The plugin unit is provides all functions in the Eclipse application procedure the module. They cooperate through its API to pay the final oute together. In Eclipse, even the most foundation39。s function, for instance the search and the start installment39。s plugin unit, seals in the plugin unit. In order to expand the existing Eclipse function or carry on the construction in above, the plugin unit the concrete expansion contribution for the expansion spot which will expose by other plugin units. Usually, the plugin unit concentrates the specific region responsibility, and gives through or a many expansion way other responsibility designation other plugin units. For example, a plugin unit allows you parallel to pare two documents visibly the contents, but it will not care how to read these documents even how to explain these document structure。 This is other plugin unit39。s work. When pared with two documents, this plug