客户端多线程上传的问题？？？ - 黑马程序员技术交流社区

/*
客户端通过键盘录入姓名
服务端进行校验
如果用户存在，在服务端显示×××已登录
并在客户端显示***,欢迎光临
如果该用户存在，在服务端显示***,尝试登录
并在客户端显示***,该用户不存在
做多登录3次
*/
import java.io.*;
import java.net.*;
class LoginClient
{
public static void main(String args[])throws Exception
{
Socket s=new Socket("192.168.1.3",10000);
BufferedReader bufr=new BufferedReader(new InputStreamReader(System.in));
PrintWriter out=new PrintWriter(s.getOutputStream(),true);
BufferedReader bufIn=
new BufferedReader(new InputStreamReader(s.getInputStream()));
for(int x=0;x<3;x++)
{
String line=bufr.readLine();
if(line==null)
break;
out.println(line);
String info=bufIn.readLine();
System.out.println("info:"+info);
if(info.contains("欢迎"))
break;
}
bufr.close();
s.close();
}
}
class UserThread implements Runnable
{
private Socket s;
UserThread(Socket s)
{
this.s=s;
}
public void run()
{
String ip=s.getInetAddress().getHostAddress();
System.out.println(ip+".....connected");
try
{
for(int x=0;x<3;x++)
{
BufferedReader bufIn=new BufferedReader(new InputStreamReader(s.getInputStream()));
String name=bufIn.readLine();
BufferedReader bufr=new BufferedReader (new FileReader("File.txt"));
PrintWriter out=new PrintWriter(s.getOutputStream(),true);
String line=null;
boolean flag=false;
while((line=bufr.readLine())!=null)
{
if(line.equals(name))
{
flag=true;
break;
}
}
if(flag)
{
System.out.println(name+"已登录");
out.println(name+",欢迎光临");
break;
}
else
{
System.out.println(name+"尝试登录");
out.println(name+",用户名不存在");
}
}
}
catch(Exception e)
{
throw new RuntimeException("校验失败");
}
}
}
class LoginServer
{
public static void main(String[] args) throws Exception
{
ServerSocket ss=new ServerSocket(10000);
while(true)
{
Socket s=ss.accept();
new Thread(new UserThread(s)).start();
}
}
}

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