基于 Java 简单实现 Socket 通信 问题

Question

基于 Java 简单实现 Socket 通信

客户端向服务器写入字符串 服务端只能接收单行 会跳过一行 是怎么回事

服务端代码

package socket;

import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.nio.charset.StandardCharsets;

public class Server {
    private ServerSocket serverSocket;

    public Server() {
        try {
            System.out.println("正在启动服务器...");
            serverSocket = new ServerSocket(8088);
            System.out.println("服务器启动成功...");
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    public void start() {
        try {
            System.out.println("等待客户连接...");
            Socket socket = serverSocket.accept();
            System.out.println("一个客户已连接");
            InputStream in = socket.getInputStream();
            InputStreamReader isr = new InputStreamReader(in, StandardCharsets.UTF_8);
            BufferedReader br = new BufferedReader(isr);
            String line;
            System.out.println("客户说：");
            while ((line = br.readLine()) != null) {
                System.out.println(line);
            }
            //System.out.println("客户说："+line);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        Server server = new Server();
        server.start();
    }
}

客户端代码

package socket;

import java.io.*;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
import java.util.Scanner;

/*
聊天室客户端
 */
public class Client {
    private Socket socket;
    public Client(){
        try {
            System.out.println("正在连接服务器....");
            socket=new Socket("192.168.168.102",8088);
            System.out.println("服务器连接成功!");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void start(){
        try {
            OutputStream out=socket.getOutputStream();
            OutputStreamWriter osw=new OutputStreamWriter(out, StandardCharsets.UTF_8);
            BufferedWriter bw=new BufferedWriter(osw);
            PrintWriter pw=new PrintWriter(bw,true);
            Scanner scanner=new Scanner(System.in);
            System.out.println("请输入:");
            while (true){
                pw.println(scanner.next());
                if(scanner.next().equals("exit")){
                    break;
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public static void main(String[] args) {
        Client client=new Client();
        client.start();
    }
}

![img](

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Answer 1

这两个抽成一个变量就好了