spring 的 Http invoker

服务器端

1 编写interface和interface 实现类。在server端打包成jar文件分给客户端使用。

public interface IRemoteService {
	String getMessage(String str);
}

public class WorkService implements IRemoteService {

	@Override
	public String getMessage(String str) {
		// TODO Auto-generated method stub
		return "from server side callback ... ..." + str;
	}

}

2 在web.xml中配置spring的信息

	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<servlet>
		<servlet-name>exporter</servlet-name>
		<servlet-class>org.springframework.web.context.support.HttpRequestHandlerServlet</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>exporter</servlet-name>
		<url-pattern>/remoting/exporter</url-pattern>
	</servlet-mapping>

3 在applicationContext.xml中配置bean

		<bean id="test" class="ccw.work.impl.WorkService"></bean>
		
		<bean name="exporter" class="org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter">
			<property name="service" ref="test"></property>
			<property name="serviceInterface" value="ccw.work.IRemoteService"></property>
		</bean>

web.xml中servlet的名称必须和applicationContext.xml中target exporter的名称一致。
HttpRequestHandlerServlet 通过getServletName()获取target bean的名称，将请求交给该bean进行处理（与spring mvc一样）。
客户端

1 applicationContext.xml中的配置

    <bean id="remoteService"   class="org.springframework.remoting.httpinvoker.HttpInvokerProxyFactoryBean">
       <property name="serviceUrl"  value="http://localhost:8080/springweb01/remoting/exporter" />
       <property name="serviceInterface"  value="ccw.work.IRemoteService" />

    </bean>

2 测试代码

		ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");

	     IRemoteService service = (IRemoteService) applicationContext.getBean("remoteService");

	     String msg = service.getMessage("haha,client");
	     
	     System.out.println(msg);