tcp无法正常获取客户端的输入流

weixin_44229296 2020-09-27 08:03:19

客户端
控制台只输出到2，不往下执行了

package com.yqx.tcp;



import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.BufferedReader;

import java.io.DataOutputStream;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.ObjectInputStream;

import java.io.ObjectOutputStream;

import java.net.Socket;

import java.net.UnknownHostException;



public class LoginClient {



	public static void main(String[] args) throws UnknownHostException, IOException {

		// TODO Auto-generated method stub

		Socket client=new Socket("localhost", 1111);

		System.out.println(1);

		ObjectOutputStream oos=new ObjectOutputStream(new BufferedOutputStream(client.getOutputStream()));

		System.out.println(2);

//InputSteam!!!!

		ObjectInputStream ois=new ObjectInputStream(new BufferedInputStream(client.getInputStream()));

		System.out.println(3);

		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

		System.out.println("请输入用户名");

		String name=br.readLine();

		System.out.println("请输入密码");

		String pwd=br.readLine();

		oos.writeObject(new User(name, pwd));

		oos.flush();

		

		String msg=ois.readUTF();

		System.out.println(msg);

		ois.close();

		client.close();

	}



}

服务器

package com.yqx.tcp;



import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.DataInputStream;

import java.io.IOException;

import java.io.ObjectInputStream;

import java.io.ObjectOutputStream;

import java.net.ServerSocket;

import java.net.Socket;



public class LoginServer{



	public static void main(String[] args) throws IOException, ClassNotFoundException {

		ServerSocket server=new ServerSocket(1111);

		Socket client=server.accept();

		ObjectInputStream ois=new ObjectInputStream(new BufferedInputStream(client.getInputStream()));

		ObjectOutputStream oos=new ObjectOutputStream(new BufferedOutputStream(client.getOutputStream()));

		User u=(User)ois.readObject();

		System.out.println(u);

		if(u.getName().equals("yqx")&&u.getPassword().equals("123")){

			oos.writeUTF("登陆成功！");

		}

		else{

			oos.writeUTF("账号或密码错误！");

		}

		oos.close();

		client.close();

	}



}

而当我客户端在后面获取输入流却可以正常运行

代码没有改，只是换了client.getInputStream()的位置

package com.yqx.tcp;



import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.BufferedReader;

import java.io.DataOutputStream;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.ObjectInputStream;

import java.io.ObjectOutputStream;

import java.net.Socket;

import java.net.UnknownHostException;



public class LoginClient {



	public static void main(String[] args) throws UnknownHostException, IOException {

		// TODO Auto-generated method stub

		Socket client=new Socket("localhost", 1111);

		ObjectOutputStream oos=new ObjectOutputStream(new BufferedOutputStream(client.getOutputStream()));

		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

		System.out.println("请输入用户名");

		String name=br.readLine();

		System.out.println("请输入密码");

		String pwd=br.readLine();

		oos.writeObject(new User(name, pwd));

		oos.flush();

//InputSteam!!!!

		ObjectInputStream ois=new ObjectInputStream(new BufferedInputStream(client.getInputStream()));

		String msg=ois.readUTF();

		System.out.println(msg);

		ois.close();

		client.close();

	}



}