基于J2EE的分布式数据库查询系统研究与应用

Research on the query system of distributed database based on J2EE and its application

针对目前基于网络环境下的分布式查询需求,将J2EE技术与分布式数据库理论结合,提出基于J2EE的分布式数据库查询系统模型。文章还以固定资产查询系统为例,系统论述了基于J2EE的分布式数据库查询系统的开发过程,并重点研究其中的事务处理及查询优化问题,最后提出了适合系统需求的查询优化策略并加以分析。

In view of the demand of distributed query in network environment, the J2EE technology is combined with the theory of distributed database, and the model of the query system of distributed database based on J2EE is put forward. Based on the case study of the query system of capital assets, the development process of the query system of distributed database based on J2EE is discussed systematically,and such issues as transaction processing and query optimization are studied emphatically. Finally,the tactic of query optimization is presented to meet the demand of the query system.