（解决）socket通信之Java做SocketServer服务端、Python做SocketClient客户端

经本人测试，完全可以用！

注：Java服务端可无限循环接收Python客户端发出的数据

Java做SocketServer服务端：给出一个版本。从网上下载之后不能用，经本人各种测试加修改，终于大功告成。

写法：

package com.hitachi.utils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
 
public class JServer implements Runnable {
 
  ServerSocket ss;
 
  public JServer() throws Exception {
    ss = new ServerSocket(55533);
    new Thread(this).start();
  }
 
  @Override
  public void run() {
    int i = 0;
    System.out.println("server startup.");
    while (true) {
      try {
        Socket s = ss.accept();
        // 每个客户端一个处理线程
        new Handler(s, i).start();
        i++;
      } catch (IOException e) {
        e.printStackTrace();
      }
    }
  }
 
  public static void main(String[] args) {
    try {
      new JServer();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}
 
class Handler extends Thread {
  Socket s;
  int id;
 
  public Handler(Socket s, int id) {
    this.s = s;
    this.id = id;
  }
 
  @Override
  public void run() {
    System.out.println("等待中...");
 
    try {
      InputStream is = s.getInputStream();
      BufferedReader in = new BufferedReader(new InputStreamReader(is));
      // 从客户端读取接收到的内容
      String filename = in.readLine();
      System.out.println("read line " + id + " :" + filename);
      s.shutdownInput();
 
      //===
      OutputStream outputStream = s.getOutputStream();
      String jsonString = "123456";
      PrintWriter pWriter = new PrintWriter(outputStream);
      pWriter.write(jsonString);
      pWriter.flush();
      outputStream.flush();
      System.out.println("sending line " + id + " :>>>" + jsonString + "<<<");
      s.shutdownOutput();
      outputStream.close();
      s.close();
      //===
     
      System.out.println("ok了");
    } catch (Exception e) {
      e.printStackTrace();
    } finally {
    }
  }
}

 

python做SocketClient客户端写法：给出一个版本

写法：

#coding:utf-8
import socket
#链接服务端ip和端口
ip_port = ('127.0.0.1',55533)
#生成一个句柄
sk = socket.socket()
try:
    #请求连接服务端
    sk.connect(ip_port)
    #发送数据
    sk.send(b"end123456789\n")
    print("1111111111")
    #接收数据
    server_reply = sk.recv(1024)
    print("2222222222")
    #打印接受的数据
    server_reply = str(server_reply,'UTF-8')
    #关闭连接
    sk.close()
except:
    server_reply = '0'
print (server_reply)