先上效果图(服务器显示客户端发送的数据):

本一篇主要解决两个问题:第一个是增加客户端向服务器发送数据功能,实现真正的通信。第二个是修复了服务器UI界面点击退出后依然没有退出的BUG。
Android客户端和Python服务器通信(二):https://www.jianshu.com/p/3a96a94768eb
Python服务器端:
from socket import *
import easygui
import _thread
def print_time( threadName, delay):
while True:
data = tcpClientSocket.recv(BUFFER_SIZE).decode()
if not data:
break
print ("%s: %s" % ( threadName, data ))
test="test01"
# 1 定义域名和端口号
HOST,PORT ='',555
# 2 定义缓冲区(缓存)
BUFFER_SIZE = 1024
ADDR=(HOST,PORT)
# 3 创建服务器套接字 AF_INET:IPv4 SOCK_STREAM:协议
tcpServerSocket = socket(AF_INET,SOCK_STREAM)
# 4 绑定域名和端口号
tcpServerSocket.bind(ADDR)
# 5 监听连接 最大连接数
tcpServerSocket.listen(5)
# 6 定义一个循环 目的:等待客户端的连接
while True:
# 6.1 打开一个客户端对象 同意连接
tcpClientSocket,addr = tcpServerSocket.accept()
print(addr)
# 连接成功后就弹出界面
_thread.start_new_thread(print_time, ("Thread-1", 2, ))
while True:
Yes_or_No = easygui.buttonbox("socket01是否发送数据?", choices = ['Yes','No','退出'])
if Yes_or_No=='退出':break
if Yes_or_No=='Yes':
tcpClientSocket.send(test.encode())
tcpClientSocket.close()
break
tcpServerSocket.close()
Android客户端:
package com.example.mrzheng.socket03;
import android.annotation.SuppressLint;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
public class MainActivity extends AppCompatActivity {
private final int HANDLER_MSG_TELL_RECV = 0x124;
@SuppressLint("HandlerLeak")
Handler handler01 = new Handler(){
public void handleMessage(Message msg){
//接受到服务器信息时执行
Toast.makeText(MainActivity.this,(msg.obj).toString(),Toast.LENGTH_LONG).show();
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
startNetThread();
}
private void startNetThread() {
new Thread() {
@Override
public void run() {
try {
Socket socket = new Socket("192.168.2.200", 555);
InputStream inputStream = socket.getInputStream();
OutputStream outputStream = socket.getOutputStream();
byte[] bytes = new byte[1024];
int n =inputStream.read(bytes);
while(true) {
outputStream.write("ok".getBytes());
outputStream.flush();
Message msg = handler01.obtainMessage(HANDLER_MSG_TELL_RECV, new String(bytes, 0, n));
msg.sendToTarget();
n =inputStream.read(bytes);
}
} catch (Exception e) {
}
}
}.start();
}
}
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