【正文】 appearance, it is as convenient as ordinary HTML mark to use. ② The easy code is paid most attention to: Every label in the label storehouse can finish certain function . Define ready to eat one label storehouse , is it pack one Jar file the label storehouse to need only, then only need use this label storehouse in other systems afterwards, needn39。 The Chinese and English name of the row and some other attribute that TCColumns form includes belonging to all forms of this user39。s institute for use in the course of development of the whole system. The template is chosen to produce some with the webpage: This part is a key part of a system. It includes two pieces of sub module . ① The template is chosen some: The system offers the template to user and chooses the interface, let users choose the templates used from the template storehouse according to the need. ② The template is dealt with some: According to template that user choose, system transfer designated template deal with module is it punish to go on to these template. When dealing with the label that the procedure meets in the template, offer the mutual interface to user, let user input parameter for designated label , prove system validity of label that user input. Finished the formulation of JSP page systematically finally. Webpage preview is with revising some: After the webpage was produced out, the system has offered a webpage preview window and code to user and looked over that revises the window. Through this preview window, users can look at the result of JSP page produced out in advance . If user static result of respect in page very satisfied, user can through code look over revise window revise HTML code of code. If users have further demands for the static result of the page, the system has also offered a piece of interface which transfers DreamWeaver editing machine to user, users can use it to carry on further modification and perfection to the static result of JSP page that is produced out . (2) Systematic realization Realization of the template storehouse and label storehouse The planning and design of the label storehouse are essential in the whole system design, efficiency that the degree and system that are put in an position have operated that its relation has reached codes. Its planning should follow the following principle . (1) Should try one39。s static result to the page, limit the use of the label. (2) Try one39。s best to classify to go on to use, form labels. Do not use and realize this application repeatedly in each label . While revising and perfecting to using like this , only need to revise this label, maintenance of the easy code. (3) Facilitate users39。 operating position , it can very easy and understanding and using labels conveniently to use the family. ① Definition of the label storehouse: Define a label storehouse, must define a label storehouse and describe the file (TLD ) at first . This is a file of script based on XML, have defined the edition of XML in this file , codes used, the edition , name and definition and parameter of all labels included in this storehouse of the label storehouse of the edition of the label storehouse , JSP used describe, including the name of the label, corresponding Javas of label, description information of the label ,etc.. ② Realization of the label: One label first special Java type, this each must inherit TagSupports , this each is in javax. servlet. jsp. Define in tagext bag . In the labels, the parameter which includes this label initializes the subject treatment method (Handler ) of method (Set/Get ) , label and method available for making the first class label to adjust,etc.. ③ Realization of the template : A template is that one contains JSP file that labels quoted . In order to quote the labels defined in the template , must introduce the label storehouse at first . ＜％＠ taglib uri＝“ tag． tld” prefix＝“ ctag”％＞ Among them uri appoints the label storehouse to describe the route of the file 。 It is the parameter assignment of the label. Systematic development environment What this systematic subject procedure making is used is JBuilder 6 of Borland Company. 0, it is FrontPa