Research And Practice, Based On The Jboss J2ee Application Platform Optimization

The objects of this paper is to conclude some methods to increase the peforman- ce of J2EE application at the basis of researching the Architecher of J2EE platform.J2EE specification makes the n一tier enterprise application development much more easier, and the servers based on it offer the running environment and system ser- services such as transaction,database accessing, JMS and security service. The major advantage of J2EE is its"write once, run anywhere"Java components, which means that it is independent of the operation system, and the J2EE productions can be deplo- yed to any J2EE servers including the server in NT system environment.because the J2EE technology has so many merits.so the technology of J2EE platform gradually become the fact standard of enterprise component deployment.but,as the core of J2EE platform,EJB technology is thinked as a low efficient technology.because ejb techn- ology are developed at the basis of Serialization technology and remote method invo- cation technology.Serialization is used to transform objects between processes.but the implemention of serialization is not designed peferctly in java platform,so the efficie- ncy of serialization is not so good.the same as serialization technology,the Remote m- ethod invocation technology also faced the criticism of bad perfomance.because of the these disadvantage,developers of j2ee application must carefully develop their work to improve the perfermence of J2EE application.,In my paper,firstly,I researched the mechanism of java memory allocation and memory recovering.I emphased on the problem of memory leak.I analysed the reason of memory leak and how to check the memory leak and how to avoid the memory leak.secondly,I reasearched how to improve the performance of the EJB components in jboss platform.thirdly,I reasearched the theory of J2EE cluster and the implementions of all kinds of cluster in the J2ee architecture in jboss platform.finally,I propose a load balancing for HTTP/Servlet level policy and make it implemented.