The Design And Research Of Application Framework Based On J2EE

Along with the developing of software, the demand of software is rapidly expanding because the filed of software is expanded increasingly. The dimensions of software becomes greater and greater because of coming forth so many complex problems which are solved by software. At the same time, software is handmade work and intellective product, so the productivity of software is very low. Program is logical entity which is easy to bring mistakes and hard to be corrected, so the cost of software-maintenance is more expensive than the cost of software-developing. The dimensions and complexity of software is not direct ratio with the times and energies which are paid out by developers. So the research of software have to pay more attention to new methods and technologies of software-developing in order to reply to the crisis of software.Object oriented technology which appeared in 1980's and is more and more laid store by people is a method to analyze problems and program. The design and developing of software are taken into account with objects, which simulate people's thinking closely. At the same time object oriented technology also brings forward some reusing technologies such as inheritance, encapsulation and polymorphism and so on. Framework technology based on objects is higher abstract and encapsulation than object oriented technology. Alone software semi-manufactured goods can be taken out from repeat developing in a certain field through framework technology. Thus the developing in the field will go along based on semi-manufactured good and avoid repeat thinking, design and implement every time for the same jobs.The thesis concentrate on design and implement of framework about enterprise application based on J2EE. Via choosing MVC pattern as theory, the whole software is compartmentalized presentation layer, business-logic layer and data-service layer according to analyze enterprise application and software's structure. The framework in the...