flask-socketio + vue-socket.io 组合使用demo

manage.py

import datetime
import json
from flask_socketio import Namespace, emit, SocketIO, disconnect
from flask import Flask, render_template,request

app = Flask(__name__)
socketio = SocketIO(app,cors_allowed_origins="*")

class MyCustomNamespace(Namespace):

    def __init__(self,namespace):
        super(MyCustomNamespace, self).__init__(namespace)
        self.sid = None
    def on_connect(self):
        self.sid = request.sid
        print('建立连接成功！-{}'.format(self.sid))

    def on_disconnect(self):
        print('客户端断开连接！')

    def close_room(self, room):
        socketio.close_room(room=self.sid)
        print('{}-断开连接'.format(self.sid))

    def on_my_event(self, data):
        while True:
            print(data)
            socketio.sleep(5)
            current_date = str(datetime.datetime.now())
            dic = {'current_date': current_date}
            res_json = json.dumps(dic)
            emit('server_response', res_json)


socketio.on_namespace(MyCustomNamespace('/test'))

if __name__ == '__main__':
    socketio.run(app)

Vue 部分

<template>
  <div>

    <h1>websocket连接</h1>
  </div>
</template>

<script>
export default{
  data(){
      return{
          id:''
      }
  },
  sockets:{
    // 通信的name
    //这里是监听connect事件
    connect: function(){
      this.id=this.$socket.id
      // alert('建立连接')
      this.$socket.emit('my_event',9999)
    },

    disconnect: function(){
      alert('断开连接')
    },

    reconnect: function(){
      console.log('重新连接')
      this.$socket.emit('conect')

    },
    server_response: function(data){
      
      console.log('接收数据',data)
    }
  },
  mounted(){
      this.$socket.emit('connect'); //在这里触发connect事件
  }
  
}
</script>

<style>
</style>

App.vue

// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import App from './App'
import router from './router'


Vue.config.productionTip = false

// 引入socket.io
import VueSocketIO from 'vue-socket.io'

// 引入Mint-ui
// import MintUI from 'mint-ui'
// 安装插件
// Vue.use(MintUI);  //里面其实做的就是注册所有的全局组件，给Vue.prototype 挂载一些对象，方便实用，组件内的this.xxx就可以使用了
// 引入css
// import 'mint-ui/lib/style.css'

Vue.use(new VueSocketIO({
    debug: true,
    connection: 'http://127.0.0.1:5000/test'
}))

/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  components: { App },
  template: '<App/>'
})

main.js