hessian_入门级运用

1.下载jar包

http://hessian.caucho.com/

2.配置web.xml

  <servlet>
    <servlet-name>HelloServlet</servlet-name>
    <!-- hession 提供的servlet -->
    <servlet-class>com.caucho.hessian.server.HessianServlet</servlet-class>
    <init-param>
    	<param-name>home-class</param-name>
    	<param-value>com.asarja.hessian.HelloImpl</param-value>
    </init-param>
    <init-param>
    	<param-name>home-api</param-name>
    	<param-value>com.asarja.hessian.IHello</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>HelloServlet</servlet-name>
    <url-pattern>/helloServlet</url-pattern>
  </servlet-mapping>

3.创建接口和实现类,服务器端和客户端使用相同的接口

public interface IHello {
    String sayHello();
}

public class HelloImpl implements IHello{

    public String sayHello() {
        return "hello hession!";
    }

}

4.测试

public class Test {
    public static void main(String[] args) throws HessianProtocolException {
        String url = "http://127.0.0.1:8080/hessian/helloServlet";
        HessianProxyFactory hessianProxyFactory = new HessianProxyFactory();
        try {
            IHello iHello;
            iHello = (IHello)hessianProxyFactory.create(IHello.class,url);
            System.out.println("result="+iHello.sayHello());
        } catch (MalformedURLException e){
            e.printStackTrace();
        } catch (HessianRuntimeException e){
            e.printStackTrace();
        }
    }
}

使用hessian,客户端远程调用服务器端