vue如何实现非父子组件通信

在vue开发中存在2种通信方式：一种是父子组件通信；另一种是非父子组件通信。下面web建站小编给大家简单介绍一下vue非父子组件通信！

eventMedth.js文件

import Vue from 'vue'
export const eventMedth = new Vue()

需要通信的组件

<script>
  import { eventMedth } from '@/eventMedth.js'
 
  export default {
    methods: {
      sendMessage () {
        eventMedth.$emit('sendMsg', 'Hello Vue!')
      }
    }
  }
</script>

接收事件

<template>
  <div>
    <h1>{{ message }}</h1>
  </div>
</template>
 
<script>
  import { eventMedth } from '@/eventMedth.js'
 
  export default {
    data () {
      return {
        message: ''
      }
    },
    created () {
      eventMedth.$on('sendMsg', (msg) => {
        this.message = msg
      })
    }
  }
</script>