The Design Pattern Based On The Web Construction In The Research As Well As Application

The framework is very important software reuse technology, and the traditional development model cannot meet the development needs of the large-scale Web application. Web application framework can improve Web application system development's efficiency. although to some extent, which limits the developers' creativity, it has brought stabile software quality and reusable software components, it reduces development's cost and complexity; it reduces system deployment and maintenance costs; and it improves system development speed and quality, particularly suited to develop larger projects, however, if we want to reuse the result of system design effectively, it is very difficult.In the existing Web system, universally it exists reusable low level is low and maintainability is not good. But the design pattern enable the system developer to reuse successful design result more conveniently and more succinctly; design pattern can be used to solve the recurring problems in the software design process and also use the design pattern ; it can improve software reusability, security and the maintainability effectively. Thus the design pattern is paid more and more attention by the software personnel to become research and the application hot spot in the software domain nowadays as well as other domains.This article first analyzes the design pattern and the domestic and foreign research's actuality and technical framework and it summarizes the definition of design pattern, the description method, the classification and related concepts.And it analyzes and to discusses the object-oriented design's basic principles. Then, it uses UML to describe design pattern of several types of common usages; it analyzes its meaning and scope of application in detailed; it explains the relationship between the design pattern and software framework. Then it analyzes the observer mode insufficiencies and takse advantage of the program design language's new function to improve it; it analyses the Strategy Mode insufficiencies, and combines with abstract factory model to improve it.Struts is one of the specific application frameworks to realize MVC model, its core a flexible, based on Java Servlets, JavaBeans, XML (Extensible Markup Language) .Struts provides its own controller components, and integrates EJB, JDBC data accessing technology structural model groupware. This article is from the actual on-line shopping system, based on an improved StrutsX framework, and it has used several design pattern models having been exsited and improved in the framework of the design process. It makes system with high security, extendibility and reusability.