/*dkplus专业搜集和编写实用电脑软件教程，
*搜集各种软件资源和计算机周边，独立制作视频和ppt和音频微信公众号，
*点击进入 dkplus官方博客 （java网络编程http://dkplus.），
*微信搜索dkplus关注公众号可获取海量计算机周边资源。*/
import java.io.*;  
import *;  
 
class moreServer  
{  
 public static void main (String [] args) throws IOException  
 {  
   System.out.println ("Server starting...\n");   
   //使用8000端口提供服务  
   ServerSocket server = new ServerSocket (8000);  
   while (true)  
   {  
    //阻塞，直到有客户连接  
     Socket sk = server.accept ();  
     System.out.println ("Accepting Connection...\n");  
     //启动服务线程  
     new ServerThread (sk).start ();  
   }  
 }  
}  
//使用线程，为多个客户端服务  
class ServerThread extends Thread  
{  
 private Socket sk;  
    
 ServerThread (Socket sk)  
 {  
  this.sk = sk;  
 }  
//线程运行实体  
 public void run ()  
 {  
  BufferedReader in = null;  
  PrintWriter out = null;  
  try{  
    InputStreamReader isr;  
    isr = new InputStreamReader (sk.getInputStream ());  
    in = new BufferedReader (isr);  
    out = new PrintWriter (  
           new BufferedWriter(  
            new OutputStreamWriter(  
              sk.getOutputStream ())), true);  
   
    while(true){  
      //接收来自客户端的请求，根据不同的命令返回不同的信息。  
      String cmd = in.readLine ();  
      System.out.println(cmd);  
      if (cmd == null)  
          break;  
      cmd = cmd.toUpperCase ();  
      if (cmd.startsWith ("BYE")){  
         out.println ("BYE");  
         break;  
      }else{  
        out.println ("你好，我是服务器！");  
      }  
    }  
    }catch (IOException e)  
    {  
       System.out.println (e.toString ());  
    }  
    finally 
    {  
      System.out.println ("Closing Connection...\n");  
      //最后释放资源  
      try{  
       if (in != null)  
         in.close ();  
       if (out != null)  
         out.close ();  
        if (sk != null)  
          sk.close ();  
      }  
      catch (IOException e)  
      {  
        System.out.println("close err"+e);  
      }  
    }  
 }  
}