helloclusterimpl.java

来自「weblogic应用全实例」· Java 代码 · 共 66 行

//声明这个类定义在包examples.cluster.rmi中
package examples.cluster.rmi;
//声明引入的其它类
import weblogic.rmi.*;
import javax.naming.*;
import weblogic.jndi.*;
import weblogic.management.Admin;
import weblogic.common.*;
import java.util.Hashtable;

/**
 * 这个类实现接口HelloCluster.
 *  
 */
public class HelloClusterImpl implements HelloCluster{   
  public static final String BINDNAME = "HelloCluster";

  /**
   * 返回一个字符串
   *
   * @返回                  String message
   * @异常               weblogic.rmi.RemoteException
   */
  public String sayHello() throws RemoteException {
    String temp =  "Hello World from : " + getLocation();
    System.out.println(temp);
    return temp;
  }
  //获取服务器名
  private String getLocation(){
    String toReturn = null;
    try{
    toReturn = weblogic.management.Admin.getServerName();
    }catch(Exception e){
      System.out.println("HelloClusterImpl failed getLocation");
      e.printStackTrace();
    }
    if(toReturn==null){
      return "";
    }else{
      return toReturn;
    }
  }
  /**
   * main()方法
   */
  public static void main(String args[]) {
    try {
      //上下文
      Context context = new InitialContext();
      //绑定
      context.bind(BINDNAME,new HelloClusterImpl());
      System.out.println("\n\n===========================HelloClusterImpl bound " +BINDNAME+
	  "===========================\n\n");
    } catch(NamingException e) {
      System.out.println("Could not bind service to '"+BINDNAME+"'");
      e.printStackTrace();
    }
  }
}