2020-02-06阿里云服务器与树莓派通过TCP协议互传数据

工具：花生壳内网穿透

树莓派

# coding:utf-8
import socket
import time
import sys


def send(content):
    SERVER_IP = ""  # 阿里云服务器公网的IP地址
    SERVER_PORT = 8888#安全组设置开放的端口
    print("Starting socket: TCP...")
    server_addr = (SERVER_IP, SERVER_PORT)
    socket_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    while True:
        try:
            print("Connecting to server @ %s:%d..." % (SERVER_IP, SERVER_PORT))
            socket_tcp.connect(server_addr)
            break
        except Exception:
            print("Can't connect to server,try it latter!")
            time.sleep(1)
            continue
    try:
        data = socket_tcp.recv(512)
        if len(data) > 0:
            print("Received: %s" % data)
            command = content
            print ("send: %s" % command)
            #socket_tcp.send(command.encode("utf_8"))
            socket_tcp.send(command)
            print("发送成功")
            time.sleep(1)
    except Exception:
        socket_tcp.close()
        socket_tcp = None
        sys.exit(1)


def receive():
    HOST_IP = "127.0.0.1"  # 花生壳映射的内网IP和端口
    HOST_PORT = 8888
    print("Starting socket: TCP...")
    # 1.create socket object:socket=socket.socket(family,type)
    socket_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    print("TCP server listen @ %s:%d!" % (HOST_IP, HOST_PORT))
    host_addr = (HOST_IP, HOST_PORT)
    # 2.bind socket to addr:socket.bind(address)
    socket_tcp.bind(host_addr)
    # 3.listen connection request:socket.listen(backlog)
    socket_tcp.listen(1)
    # 4.waite for client:connection,address=socket.accept()
    socket_con, (client_ip, client_port) = socket_tcp.accept()
    print("Connection accepted from %s." % client_ip)
    socket_con.send("Welcome to RPi TCP server!".encode())

    print("Receiving package...")
    try:
        data = socket_con.recv(512)
        if len(data) > 0:
            print("Received:%s" % data)
            socket_con.send(data)
            time.sleep(1)
    except Exception:
        socket_tcp.close()
        sys.exit(1)

if __name__ == '__main__':
    send("我")
    receive()

阿里云服务器

import socket
import sys
import time
import sys

def receive():
    HOST_IP = ""  #阿里云服务器私网的IP地址
    HOST_PORT = 8888
    print("Starting socket: TCP...")
    # 1.create socket object:socket=socket.socket(family,type)
    socket_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    print("TCP server listen @ %s:%d!" % (HOST_IP, HOST_PORT))
    host_addr = (HOST_IP, HOST_PORT)
    # 2.bind socket to addr:socket.bind(address)
    socket_tcp.bind(host_addr)
    # 3.listen connection request:socket.listen(backlog)
    socket_tcp.listen(1)
    # 4.waite for client:connection,address=socket.accept()
    socket_con, (client_ip, client_port) = socket_tcp.accept()
    print("Connection accepted from %s." % client_ip)
    socket_con.send("Welcome to smart desk server!".encode())

    print("Receiving package...")
    try:
        data = socket_con.recv(512)
        a=data
        print(a)
        if len(data) > 0:
            data=data.decode("utf-8")
            print("Received:%s" % data)
            socket_con.send(a)
            time.sleep(1)
    except Exception:
        socket_tcp.close()
        sys.exit(1)


def send(content):
    SERVER_IP = ""  # 花生壳映射外网ip和端口
    SERVER_PORT = 50615#花生壳给定的端口
    print("Starting socket: TCP...")
    server_addr = (SERVER_IP, SERVER_PORT)
    socket_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    while True:
        try:
            print("Connecting to server @ %s:%d..." % (SERVER_IP, SERVER_PORT))
            socket_tcp.connect(server_addr)
            break
        except Exception:
            print("Can't connect to server,try it latter!")
            time.sleep(1)
            continue
    try:
        data = socket_tcp.recv(512)
        if len(data) > 0:
            print("Received: %s" % data)
            command = content
            print ("send: %s" % command)
            socket_tcp.send(command.encode())
            time.sleep(1)
    except Exception:
        socket_tcp.close()
        socket_tcp = None
        sys.exit(1)


if __name__ == '__main__':
        receive()
        send("成功")