Java远程调用之Hessian简例(1)
发布时间：2010/7/14 10:34:44 来源：城市学习网 编辑：ziteng
(一)远程服务端
1.服务接口
package server;
public interface Hello {
String hello(String name);
}
2.接口实现类
package server;
public class HelloImpl implements Hello{
public String hello(String name) {
return "hello,"+name+"! 欢迎学习Hessian";
}
}
在服务器端配置web.xml
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
hessianService
com.caucho.hessian.server.HessianServlet
service-class
server.HelloImpl
1
hessianService
/hessianService
还要导入jar包,从Hessian官网上下载,放入lib文件夹下.
为了方便,将Hello接口及实现类打包成jar包,以供客户端使用,在这里打包成hello.jar.
至此 服务器端 完成.
注:服务器端IP是http://192.168.1.104:8081 [NextPage] (二)客户端
通过服务器端暴露的服务接口,来进行远程调用服务.
程序如下:
package client;
import java.net.MalformedURLException;
import server.Hello;
import com.caucho.hessian.client.HessianProxyFactory;
public class RomoteTest {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
//hessian服务的url 其中hessian-v1是项目名
String url = "http://192.168.1.104:8081/hessian-v1/hessianService";
//创建HessianProxyFactory实例
HessianProxyFactory factory = new HessianProxyFactory();
//获得Hessian服务的远程引用
try {
Hello hello = (Hello)factory.create(Hello.class,url);
System.out.println(hello.hello("kingtoon"));
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
因为要用到接口Hello,所以需要将Hello.jar导入到lib下.
