Design And Implementation Of Multi Database Middleware Based On Java

The large number of computer applications improve the estate information management. However, due to the property of fragmented territorial management and all of the management consciousness, economic conditions, regional differences and the use of management software are different in the housing sector, it is formed a multiple independent operation, system of distributed and heterogeneous data system. With the rapid development of application requirements and network technology, the access and operation of the heterogeneous database data is realized without changing the application environment.This paper studies the middleware of multi database system based on Java language. By setting up a multi data middleware system between each client and the background of the heterogeneous database, it can solve the problem can not be exchanged between a plurality of database. so it can establish a unified and interoperable database system for the user to carry on the thorough operation and processing.The results of this study:the mode conversion eliminates the heterogeneity of the heterogeneous database and the middleware can realize the access and query of the heterogeneous data. Meanwhile, the virtual LAN technology is used to realize the simulation of the access and query of different data.