| With the flourishing development of e-commerce application, the new e-commerce modes also appear constantly, which requires more about the development for e-commerce. It includes how to improve the application development level effectively and shorten the developing time, and how to realize the reuse and maintainability of the web application program in order to deal with the quick change of the enterprise's procedures, etc. All of them are becoming the key problems in the e-commerce application system to face and resolve. Under this background, the software realm puts forward the concepts about Component, Design Mode, and Framework, etc. This paper first made clearly these three concepts: Component is the code that can be repeatedly used; but Design Mode is the design that can be repeatedly used; and framework situated between Component and Design Mode, parts of it is the codes that can be repeatedly used, parts of it is the design that can be repeatedly used, sometimes analyzing can be repeatedly used too. On the basis of this purpose, this paper made a research about how to optimize and realize e-commerce system based on the framework designs, by taking the designing and implementation of bid subsystem in National Electricity's materials commercial network system as an example. First of all, this paper has presented the main stream of realized technique for e-commerce: Struts framework and J2EE system. Besides the detailed introduction of the developing technique applied Struts framework in MVC mode, it has also explained the workflow of Struts at the same time: (1) The Servlet accepts the Client's request; (2) The Servlet saves the data received from HTML FORM to data Bean; (3) The logic Bean deals with data; (4) According to the logic Bean's handling result, the Servlet adjust to use the homologous JSP. (5) Create HTML in JSP, and return to the Client. In fact, untill now, we have had a basic understanding about the essence of Struts. Then we have briefly introduced the technique characteristic of J2EE and the two kind technique standards of it(JSP and Servlet). In addition of that, we have also introduced the e-commerce platform applied in our system, BV platform. In the next part, this paper has expounded how to realize the procedure from the environment installing to system background, from the logic designing to interface designing, with the reference about the bid subsystem of the National Electricity's materials commercial network system. In this part, we first introduced the designing objective and the total plan of the whole system, including the system structure design, function modue design... |
