c14_6.java

这是java网络编程的8个比较典型的实例

//Socket客户端程序
import java.net.*; 
import java.io.*; 
public class c14_6{ 
 public static void main(String[] args)
 { 
  String str;
  try{ 
  // InetAddress addr=InetAddress.getByName("127.0.0.1");
   InetAddress addr=InetAddress.getByName("198.198.1.68");
   Socket socket=new Socket(addr,8000); 
   System.out.println("socket="+socket); 
   //获得对应socket的输入/输出流 
   InputStream fIn=socket.getInputStream(); 
   OutputStream fOut=socket.getOutputStream(); 
   //建立数据流 
   InputStreamReader isr=new InputStreamReader(fIn); 
   BufferedReader in=new BufferedReader(isr);   
   PrintStream out=new PrintStream(fOut); 
   InputStreamReader userisr=new InputStreamReader(System.in); 
   BufferedReader userin=new BufferedReader(userisr);   
   while(true){ 
    System.out.print("发送字符串:"); 
    str=userin.readLine();  //读取用户输入的字符串
    out.println(str);  //将字符串传给服务器端
    if(str.equals("end"))break;  //如果是"end",就退出
     System.out.println("等待服务器端消息..."); 
     str=in.readLine();  //获取服务器获得字符串
     System.out.println("服务器端字符:"+str); 
     if(str.equals("end"))break;
    } 
   socket.close(); //关闭连接 
 } 
 catch(Exception e){ 
   System.out.println("异常:"+e);  } 
  } 
 }