java 怎么通过 Socket服务端 传参数

Question

服务端代码如下
import java.io.*;
import java.net.*;public class EchoServer
{
     public static void main(String[] args)
     {
         try{
             ServerSocket s = new ServerSocket(5050);
             Socket incoming = s.accept();
             
             BufferedReader in = new BufferedReader(new InputStreamReader(incoming.getInputStream()));
             PrintWriter out = new PrintWriter(incoming.getOutputStream(), true /* autoFlush */);             out.println("55 7F 00 00 01 30");
         
             boolean done = false;
             while (!done)
             {
                 String line = in.readLine();
                 if (line == null)
                     done = true;
                 else{
                     out.println("You to Server : " + line);
                     System.out.println("Client to you :"+line);
                     if (line.trim().equals("BYE"))
                         done = true;
                 }             }             incoming.close();
         }
         catch (Exception e){
             System.out.println(e);
         }
     }}
等客户端连接上后
out.println("55 7F 00 00 01 30");是往客户端发送数据吗
如果不是应该怎么给客户端发送数据

Answer 1

 public static void main(String[] args)
     {
         try{
             ServerSocket s = new ServerSocket(5050);
             Socket incoming = s.accept();
             
             BufferedReader in = new BufferedReader(new InputStreamReader(incoming.getInputStream()));
             ObjectOutputStream writer =  new ObjectOutputStream(incoming.getOutputStream());
             PrintWriter out = new PrintWriter(incoming.getOutputStream(), true /* autoFlush */);             out.println("55 7F 00 00 01 30");
         
             boolean done = false;
             while (!done)
             {
                 String line = in.readLine();
                 if (line == null)
                     done = true;
                 else{
                     out.println("You to Server : " + line);
                     System.out.println("Client to you :"+line);                     if (line.trim().equals("BYE"))
                         done = true;
                 }             }
             writer.writeObject("this is the message given to client");
             writer.flush();
             incoming.close();
         }
         catch (Exception e){
             System.out.println(e);
         }
     }

Answer 2

黑体字和楼主利用PrintWriter发送信息是等效的。这个黑体字填上程序很二，呵呵

Answer 3

this.socket.getOutputStream().write(message);
this.socket.getOutputStream().flush();