TCP问题我传到服务端的数据总是为null 实在找不到问题哥... - 黑马程序员技术交流社区

import java.io.*;
import java.net.*;
class LoginClient{
public static void main(String[] args)throws IOException{
Socket sk = new Socket("192.168.1.101",10008);
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
BufferedReader brin = new BufferedReader(new InputStreamReader(sk.getInputStream()));
PrintWriter out = new PrintWriter(sk.getOutputStream(),true);
String line = null;
for(int i = 0; i<3; i++){
line = br.readLine();
System.out.println(line);
out.write(line);
//关闭Socket服务输出流
sk.shutdownOutput();
line = brin.readLine();
System.out.println(line);
if(line.contains("欢迎"))
break;
}
}
}
class LoginServer{
public static void main(String[] args) throws IOException {
//创建服务端socket服务，并绑定端口
ServerSocket ss = new ServerSocket(10008);
Socket sk = ss.accept();
new Thread(new Login(sk)).start();
}
}
class Login implements Runnable{
private Socket sk;
Login(Socket sk){
this.sk = sk;
}
public void run(){
String ip = sk.getInetAddress().getHostAddress();
System.out.println(ip + ".......connected");
try{
BufferedReader brin = new BufferedReader(new InputStreamReader(sk.getInputStream()));
PrintWriter out = new PrintWriter(sk.getOutputStream());
BufferedReader br = new BufferedReader(new FileReader("user.txt"));
String name = null;
boolean flag = false;
for(int i = 0; i<3; i++){
name = brin.readLine();
if(name == null){
System.out.println("名字为空");
break;
}
while(true){
if(name.equals(br.readLine())){
flag = true;
break;
}
}
if(flag){
System.out.println(name + "登陆");
out.println(name + "欢迎登陆");
break;
}else{
System.out.println(name + "尝试登陆");
}
}
}catch(IOException e){
throw new RuntimeException("校正失败");
}
}
}

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