实时显示当前时间和天气

效果图

一、显示时间

1、安装插件dayjs

cnpm i dayjs -S

或

yarn i dayjs -S

2、封装为组件或者直接在页面中使用，示例是直接封装了作为组件使用

<template>
   <div class="box">
     <p class="boxDay">{{ dateWeek }}</p>
     <p class="boxTime">{{ dateDay }}</p>
     <p class="boxDate">{{ dateYear }}</p>
   </div>
</template>
 
<script>
import dayjs from "dayjs";
export default {
  data() {
    return {
      dateDay: null,
      dateYear: null,
      dateWeek: null,
      weekday: ["星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"],
      timer: null,
    };
  },
  mounted() {
    this.timer = setInterval(() => {
      const date = dayjs(new Date());
      this.dateDay = date.format("HH:mm:ss");
      this.dateYear = date.format("YYYY-MM-DD");
      this.dateWeek = date.format(this.weekday[date.day()]);
    }, 1000);
  },
  beforeDestroy() {
    if (this.timer) {
      clearInterval(this.timer);
    }
  },
};
</script>

<style scoped>
.box{
   color: #fff;
   display: flex;
   align-items: center;
}
.boxDay{
   font-size: 16px;
}
.boxTime{
   font-size: 16px;
   margin: 0 15px;
}
.boxDate{
   font-size: 14px;
}
</style>

3、因为不牵涉到组件通信，所以在需要的页面注册组件并引入即可使用

二、显示天气

一天可调用三百次

1、直接引用第三方api接口就好, appId等参数可以在第三方官网中进行注册调用 , 免费版的一天可以调用300次。
天气api

<template>
   <div class="box">
      <p class="boxTemperature">{{weatcherData.tem}}°</p>
      <p class="boxWeather">{{weatcherData.wea}}</p>
      <p class="boxWind">{{weatcherData.win}}{{weatcherData.win_speed}}</p>
      <p class="boxCity">{{weatcherData.city}}市</p>
   </div>
</template>

<script>
import axios from 'axios'
export default {
   data(){
      return{
         weatcherData:{}
      }
   },
   mounted() {
      this.getWeather();
      this.timer = setInterval(() => {
         this.getWeather();
      }, 1000 * 60 * 60)	//每小时调用一次	
   },
   methods: {
      getWeather() { // 第三方天气api接口
         axios.get('https://yiketianqi.com/free/day', {
            params: {
               unescape: "1",
               appid: 'xxx',
               appsecret: 'xxx ',
               // version: 'v91'
            }
         }).then(res => {
            console.log(res.data);
            if (res.data) {
               this.weatcherData = res.data;
            }
         }).catch(err => {
            console.log(err)
         })
      }
   }
}
</script>

<style scoped>
.box{
   display: flex;
   align-items: center;
   color: #fff;
   margin-right: 20px;
}
.boxTemperature{
   font-size: 18px;
}
.boxWeather{
   font-size: 14px;
   margin: 0 0 0 15px;
}
.boxWind{
   margin: 0 15px 0 8px;
   font-size: 14px;
   
}
.boxCity{
   font-size: 16px;
}
</style>

理论上无限次调用

1、先在index.html中引入获取当前地理位置的js

	<div id="app"></div>
    <!-- 获取当前地理位置并返回"returnCitySN" -->
    <script src="https://pv.sohu.com/cityjson?ie=utf-8" type="text/javascript"></script>

2、组件代码

<template>
   <div class="box">
      <p class="boxTemperature">{{weatcherData.wendu}}°</p>
      <p class="boxWeather">{{yesterday.type}}</p>
      <p class="boxWind">{{(yesterday.fx)}}{{yesterday.fl | windSpeed}}</p>
      <p class="boxCity">{{weatcherData.city}}市</p>
   </div>
</template>

<script>
import axios from 'axios'
export default {
   data(){
      return{
         weatcherData: {},
         yesterday: {}
      }
   },
   created() {
      this.getWeather();
      this.timer = setInterval(() => {
         this.getWeather();
      }, 1000 * 60 * 60)		
   },
   methods: {
      getWeather() { // 第三方天气api接口
         axios.get('http://wthrcdn.etouch.cn/weather_mini',{
            params: {
            	// "returnCitySN"就是在index.html引入的script中返回的当前省市位置
               city: (returnCitySN.cname).split('省')[1] 
            }
         }).then(res =>{
            if(res.data.data) {
               this.weatcherData = res.data.data;
               this.yesterday = res.data.data.yesterday;
            }
         }).catch(err =>{
            console.log(err);
         })
      }
   },
   filters: {
      windSpeed(val) {
         if(!val) return ''
         let windSpeed  = val.toString().slice(9,11);
         return windSpeed
      }
   }
}
</script>

<style scoped>
.box{
   display: flex;
   align-items: center;
   color: #fff;
   margin-right: 20px;
}
.boxTemperature{
   font-size: 18px;
}
.boxWeather{
   font-size: 14px;
   margin: 0 0 0 15px;
}
.boxWind{
   margin: 0 15px 0 8px;
   font-size: 14px;
}
.boxCity{
   font-size: 16px;
}
</style>

因为时间和天气不是同一类型内容，所以在开发中单独的对他们进行了封装和引用，如有需求合在一起可自行操作