C/S To B/S Mode Conversion Technology Research

The rapid development of Internet to 4GL (fourth-generation language) graphical user interface (GUI) is a new challenge. These procedures are mostly based on C/S (Clint/Server), this model in the structure of the network; server will be split applications for data management, client and the user interaction. C/S structure with strong under software data manipulation and transaction processing capability, and data security and integrity. But with the enterprise scale expanding, application of the complex degree unceasing enhancement, C/S structure gradually exposed shortcomings. Such as development cost is higher,the user interface, use different style, is multifarious, maintenance and update trouble, etc.In order to solve the shortage of C/S structure based on Internet, the B/S (Browser/Server) technology, it is the most stable since computing technology platform. The B/S is essentially a client technology, only through the user interface, the'browser can enjoy unlimited rich, forever changing and developing the information service.B/S structure is the Server Browser and Server structure.It is with the rise of the Internet technology; C/S structure is a change or improves the structure. In this kind of structure, the user interface is through the WWW work to achieve the Browser, and little business logic in front (browser), but in the main business logic Server,3-tier three layers. This greatly simplifies the client computer load, reduces the cost of maintenance system upgrade and workload, and reduces the overall cost of users (TCO).With the arrival of the era of Internet, most of the management software to B/S structure. How from C/S a smooth transition to the B/S,and there is no better before the solution, most companies began to give VB, PB,to develop code C/S structure of Java language to write again. Although there is no problem, but needs to be invested capital,human, and even need to add more training opportunities.So, more and more people begin to suspect, C/S structure can be transplanted into the code seamless B/S structure, so as to realize the code reuse.In C/S to B/S transfer process, developers meet a lot of difficulties.Because the code of transplantation is not simple syntax,the past and involves various objects mapping.To solve the existing C/S application of low cost, quick to B/S structure under the plight of the application, must solve the automatic and precise GUI transplantation, automatic grammar logic transplantation, convenient debug and release the server.Based on the above, this article analyses the current thinking on software reuse technology, C/S to B/S model of migration, put forward a kind of method of the system, it is the migration based on COM component software reuse technology, the existing C/S mode of legacy systems analysis, a different function of each layer, and generate COM components, using JNI calls the COM components,so as to achieve the interface system consists of C/S mode to B/S model of migration, and probes into the process of migration and key technologies of use.