import tkinter
import socket, threading

win = tkinter.Tk()  # 创建主窗口
win.title('模拟服务器')
win.geometry("400x400+200+20")
users = {}#用户字典，也可以连接数据库


def run(ck, ca):
    userName = ck.recv(1024)#接受客户端发送的信息以1k作为单位这里接受到的信息为byte类型
    users[userName.decode("utf-8")] = ck#解码并储存用户的信息
    #print(users)
    printStr = "" + userName.decode("utf-8") + "连接\n"#在连接显示框中显示是否连接成功
    text.insert(tkinter.INSERT, printStr)

    while True:
        rData = ck.recv(1024)#接受客户端发送的信息以1k作为单位这里接受到的信息为byte类型
        dataStr = rData.decode("utf-8")
        infolist = dataStr.split(":")#分割字符串从而得到所要发送的用户名和客户端所发送的信息
        users[infolist[0]].send((userName.decode("utf-8") + "说" + infolist[1]).encode("utf"))
        #要发送信息的客户端向目标客户端发送信息

def start():
    ipStr = eip.get()#从输入端中获取ip
    portStr = eport.get()#从输入端中获取端口，注意端口取得时候不能被占用（可以取8080，9876，等）
    server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)#socked所准守ipv4或ipv6，和相关协议的
    server.bind((ipStr, int(portStr)))#绑定ip和端口号！！！1:注意输入的端口号是str型而这里的要传入int型
    #2:bind()的参数是一个元组的形式
    server.listen(10)#设置监听，和设置连接的最大的数量
    printStr = "服务器启动成功\n"#，是否连接成功
    text.insert(tkinter.INSERT, printStr)#显示在信息窗口中
    while True:#这里用死循环是因为模拟的服务器要一直运行
        ck, ca = server.accept()#接受所连接的客户端的信息
        # 其中ca是ip和端口号组成的元组，ck有关客户端的信息
        t = threading.Thread(target=run, args=(ck, ca))#每连接一个客户端就开启一个线程
        #其中Thread函数中的传入函数的参数也是以元组的形式
        t.start()#开启线程


def startSever():
    s = threading.Thread(target=start)#启用一个线程开启服务器
    s.start()#开启线程

#下面是关于界面的操作
labelIp = tkinter.Label(win, text='ip').grid(row=0, column=0)
labelPort = tkinter.Label(win, text='port').grid(row=1, column=0)
eip = tkinter.Variable()
eport = tkinter.Variable()
entryIp = tkinter.Entry(win, textvariable=eip).grid(row=0, column=1)
entryPort = tkinter.Entry(win, textvariable=eport).grid(row=1, column=1)
button = tkinter.Button(win, text="启动", command=startSever).grid(row=2, column=0)
text = tkinter.Text(win, height=5, width=30)
labeltext = tkinter.Label(win, text='连接消息').grid(row=3, column=0)
text.grid(row=3, column=1)
win.mainloop()

import tkinter
import socket
import threading

win = tkinter.Tk()
win.title("客户端2")
win.geometry("400x400+200+20")

ck = None#用于储存客户端的信息


def getInfo():
    while True:
        data = ck.recv(1024)#用于接受服务其发送的信息
        text.insert(tkinter.INSERT, data.decode("utf-8"))#显示在信息框上


def connectServer():
    global ck
    ipStr = eip.get()
    portStr = eport.get()
    userStr = euser.get()
    client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)#socked所准守ipv4或ipv6，和相关协议的
    client.connect((ipStr, int(portStr)))#连接ip和端口号！！！1:注意输入的端口号是str型而这里的要传入int型
    #2:bind()的参数是一个元组的形式
    client.send(userStr.encode("utf-8"))
    ck = client

    t = threading.Thread(target=getInfo)
    t.start()


def sendMail():
    friend = efriend.get()
    sendStr = esend.get()
    sendStr = friend + ":" + sendStr
    ck.send(sendStr.encode("utf-8"))


#下面是界面
labelUse = tkinter.Label(win, text="userName").grid(row=0, column=0)
euser = tkinter.Variable()
entryUser = tkinter.Entry(win, textvariable=euser).grid(row=0, column=1)

labelIp = tkinter.Label(win, text="ip").grid(row=1, column=0)
eip = tkinter.Variable()
entryIp = tkinter.Entry(win, textvariable=eip).grid(row=1, column=1)

labelPort = tkinter.Label(win, text="port").grid(row=2, column=0)
eport = tkinter.Variable()

entryPort = tkinter.Entry(win, textvariable=eport).grid(row=2, column=1)

button = tkinter.Button(win, text="启动", command=connectServer).grid(row=3, column=0)
text = tkinter.Text(win, height=5, width=30)
labeltext= tkinter.Label(win, text="显示消息").grid(row=4, column=0)
text.grid(row=4, column=1)

esend = tkinter.Variable()
labelesend = tkinter.Label(win, text="发送的消息").grid(row=5, column=0)
entrySend = tkinter.Entry(win, textvariable=esend).grid(row=5, column=1)

efriend = tkinter.Variable()
labelefriend= tkinter.Label(win, text="发给谁").grid(row=6, column=0)
entryFriend = tkinter.Entry(win, textvariable=efriend).grid(row=6, column=1)

button2 = tkinter.Button(win, text="发送", command=sendMail).grid(row=7, column=0)
win.mainloop()