Spring Remoting了解与使用

来源：互联网发布：软件授权使用协议编辑：程序博客网时间：2024/06/06 00:10

HttpInvokerServiceExporter只是spring remoting的一种，还有HessianServiceExporter，BurlapServiceExporter
下面一个例子以HttpInvokerServiceExporter为例的综合应用
也可以参考http://www.javaeye.com/topic/417767这个帖子

1.JettyDaemon类的start方法

Java代码

server = new Server();
final SelectChannelConnector connector = new SelectChannelConnector();
connector.setReuseAddress(true);
connector.setPort(port);
server.addConnector(connector);
WebAppContext webAppContext = new WebAppContext();
webAppContext.setContextPath("/");
ServletHolder sh = new ServletHolder();
sh.setName("helloServlt");
sh.setClassName(DispatcherServlet.class.getName());
sh.setInitParameter("contextConfigLocation","classpath:applicationContext-mvc.xml");
sh.setInitOrder(0);
webAppContext.addServlet(sh, "*.sv");
webAppContext.setDescriptor("web/WEB-INF/web.xml");
webAppContext.setResourceBase("web");
// webAppContext.setConfigurationDiscovered(true);
webAppContext.setParentLoaderPriority(true);
server.setHandler(webAppContext);
// 保证在退出时能优雅的退出jetty服务
// server.setStopAtShutdown(true);
// 以下代码是关键
webAppContext.setClassLoader(applicationContext.getClassLoader());
XmlWebApplicationContext xmlWebAppContext = new XmlWebApplicationContext();
xmlWebAppContext.setParent(applicationContext);
xmlWebAppContext.setConfigLocations(new String[] { "classpath:applicationContext-mvc.xml" });
xmlWebAppContext.setServletContext(webAppContext.getServletContext());
xmlWebAppContext.refresh();
webAppContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE,xmlWebAppContext);
server.start();

   server = new Server();   final SelectChannelConnector connector = new SelectChannelConnector();   connector.setReuseAddress(true);   connector.setPort(port);      server.addConnector(connector);    WebAppContext webAppContext = new WebAppContext();    webAppContext.setContextPath("/");       ServletHolder sh = new ServletHolder();   sh.setName("helloServlt");   sh.setClassName(DispatcherServlet.class.getName());   sh.setInitParameter("contextConfigLocation","classpath:applicationContext-mvc.xml");   sh.setInitOrder(0);   webAppContext.addServlet(sh, "*.sv");   webAppContext.setDescriptor("web/WEB-INF/web.xml");   webAppContext.setResourceBase("web");   // webAppContext.setConfigurationDiscovered(true);   webAppContext.setParentLoaderPriority(true);   server.setHandler(webAppContext);   // 保证在退出时能优雅的退出jetty服务   // server.setStopAtShutdown(true);   // 以下代码是关键   webAppContext.setClassLoader(applicationContext.getClassLoader());   XmlWebApplicationContext xmlWebAppContext = new XmlWebApplicationContext();   xmlWebAppContext.setParent(applicationContext);   xmlWebAppContext.setConfigLocations(new String[] { "classpath:applicationContext-mvc.xml" });   xmlWebAppContext.setServletContext(webAppContext.getServletContext());   xmlWebAppContext.refresh();   webAppContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE,xmlWebAppContext);   server.start();

2.服务器bean配置，没啥特别，就是让spring自动调用start方法和stop方法

Java代码

<bean id="webDaemon" class="com.taobao.monitor.pf.analyse.master.core.JettyDaemon"
init-method="start" destroy-method="stop">
<property name="port" value="${master.port}"></property>
</bean>
3.applicationContext-mvc.xml
<bean id="urlMapping"
class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="/task2slave.sv">task2slaveService</prop>
</props>
</property>
</bean>
<bean id="task2slaveService"
class="org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter">
<property name="service" ref="taskManager"/>
<property name="serviceInterface">
<value>com.taobao.monitor.pf.analyse.inter.Task2Slave</value>
</property>
</bean>

 <bean id="webDaemon" class="com.taobao.monitor.pf.analyse.master.core.JettyDaemon"init-method="start" destroy-method="stop"><property name="port" value="${master.port}"></property>   </bean>3.applicationContext-mvc.xml       <bean id="urlMapping"class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"><property name="mappings"><props><prop key="/task2slave.sv">task2slaveService</prop></props></property></bean><bean id="task2slaveService"class="org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter"><property name="service" ref="taskManager"/>  <!--实现类--><property name="serviceInterface">                  <!--接口,需要提供给调用方--><value>com.taobao.monitor.pf.analyse.inter.Task2Slave</value></property></bean>

4.调用方配置，直接使用task2Slave实例即可

Java代码

<bean id="httpInvokerRequestExecutor"
class="org.springframework.remoting.httpinvoker.CommonsHttpInvokerRequestExecutor">
<property
name="httpClient">
<bean
class="org.apache.commons.httpclient.HttpClient">
<property
name="timeout"
value="${http.timeout}" />
<property
name="httpConnectionManager">
<ref
bean="multiThreadedHttpConnectionManager" />
</property>
</bean>
</property>
</bean>
<bean id="task2Slave"
class="org.springframework.remoting.httpinvoker.HttpInvokerProxyFactoryBean">
<property name="serviceUrl">
<value>http://${master.ip}:${master.port}/task2slave.sv</value>
</property>
<property name="serviceInterface">
<value>com.taobao.monitor.pf.analyse.inter.Task2Slave</value>
</property>
<property name="httpInvokerRequestExecutor" ref="httpInvokerRequestExecutor"/>
</bean>