Hadoop中RPC使用

具体程序如下：

服务端：需要至少2个类1个接口

public LoginService{

  public static final long  versionID = 1L;

  public String login(String name);

}

实现类

public  LoginServiceImpl implements LoginService{

    public String login(String name){

        return  name+":loginSuccess";

    }

}

启动类

public class Starter {

public static void main(String[] args) throws HadoopIllegalArgumentException, IOException {

Builder builder = new RPC.Builder(new Configuration());
builder.setBindAddress("hadoop0").setPort(3000).setProtocol(LoginService.class).setInstance(new LoginServiceImpl());
Server server = builder.build();
server.start();
}

}

客户端：1个接口 1个类

接口：

public LoginService{

  public static final long  versionID = 1L;

  public String login(String name);

}

启动类：

public class Controller {
public static void main(String[] args) throws IOException {

           LoginService  proxy = RPC.getProxy(LoginService.class, 1L, new InetSocketAddress("hadoop0",3000),new Configuration());
  String result = proxy.login("yinchong");
  System.out.println(result);
}

}