methodmainclass.java~16~

jbuilder2006一书的所有源代码

package rmi;

import java.rmi.Naming;
import java.rmi.RemoteException;
import java.rmi.RMISecurityManager;
import java.rmi.server.UnicastRemoteObject;

//引用远程接口文件MethodRemote
public class MethodMainClass extends UnicastRemoteObject implements MethodRemote {

  public MethodMainClass() throws RemoteException {
    super();
  }
  //显示欢迎信息的方法
  public String addMethod(double a, double b) {
    String result = a + " + " + b + " = " + (a + b);
    return result;
  }
  public static void main(String args[]) {
    //加入安全机制类
    if (System.getSecurityManager() == null) {
      System.setSecurityManager(new RMISecurityManager());
    }
    try {
      //创建服务器对象
      MethodMainClass obj = new MethodMainClass();
      //在register注册该对象，localhost是服务器的名字
      Naming.rebind("//localhost/MethodServer", obj);
      System.out.println("服务端的Hello程序已注册！");
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}