Abstract: For the management of some heterogeneous databases in different network is more flexible and convenient, the paper studies and analyzes the common database middleware, Hibernate framework and Web Service technology. Then aiming at the shortcomings of database middleware, the paper puts forward a new database middleware that was designed with Web Service technology and Hibernate framework. This scheme can transparently access databases without changing the original data storage method, ensure data integrity, consistency and security, and has higher development efficiency.

Key words: database middleware, Web Service, Hibernate