基于Struts与设计模式的网上购书系统-计算机应用技术专业论文.docxVIP

基于St 基于St s与设计模式的孵上购书系统 Abstract In the last few years，J2EE appears the standard platform which is kind of technology build enterprise applications，and it matures，develops progressively．The platform large amount of different technical standards such Java Servers Pages (JSP)，Java Servlet．Enterprise JavaBeans(EJB)，Java Message Service(JMS)．Java Naming and Directory Interface(JNDl)，ere．It offers n—tier distributed application model， reused components ability，unified security model and flexible transaction process．it oflkrs strong and stable service for developing and disposing enterprise application． Framework technology and design patterns，which the very important software technologies in J2EE．improves the production efficiency of software through reuse．The projects of J2EE achieve the goal of controlling the software quality through the design and application of framework and patterns．Although it limits the creation of the technician certain extent，it products stably software quality and module and is especially the same with development ofthe large·scale project． Struts is of application frameworks based the MVC design paradigm．The of the Struts framework is flexible control layer based standard technologies like Java Servlets，JavaBeans，and XML(Extensible Markup Language)．Struts provides its own Controller component and integrates with other technologies provide the Model and the View．For the Model，Struts Can interact with any standard data technology，including Enterprise Java Beans，and JDBC．For the View，Struts works well with Java Server Pages，XSLT，and other presentation systems． Design pattems are the knowledge and experience registering in the of the design of object—oriented software．It describes the meanings of design patterns concretely by series of class structure and object．In the base of the design structure which is defined beforehand．it accomplishes the material design from the material application．The goal of design patterns is the solving schem