Hession 是一个RPC通信框架，效率虽然不如thrift和Google Protocol Buffer，但是比较容易上手
配置情况如下(基于tomcat容器)
Server:
tomcat-web.xml
<servlet>
<servlet-name>userStarReadServiceExporter</servlet-name>
<servlet-class>org.springframework.web.context.support.HttpRequestHandlerServlet</servlet-class>
</servlet>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:conf/applicationContext*.xml
</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
applicationcontext.xml
<bean id="userStarReadService" class="com.******.impl.StarReadServiceImpl">
<property name="manager" ref="userStarManager" />
</bean>
<!-- hessain service api exporter -->
<bean name="userStarReadServiceExporter" class="org.springframework.remoting.caucho.HessianServiceExporter">
<property name="service" ref="userStarReadService"/>
<property name="serviceInterface" value="com.******.IStarReadService"/>
</bean>
client:
userService = (IUserService) new ZhishiHessianProxyFactory(timeoutInMillis, timeoutInMillis).create(IUserService.class, url);