方法一

1、下载axios，并在main.js入口函数中引入axios

import axios from "axios";
Vue.prototype.$axios = axios

页面中

<span>{{weather}}</span><span v-if="lower">{{lower}}~{{higher}}</span>


created(){
    this.getWeather() // 获取天气
  },
  methods: {
    getWeather(){
      this.$axios
        .get("http://wthrcdn.etouch.cn/weather_mini?city=郑州")
        .then(res=> {
          this.weather = res.data.data.forecast[0].type ? res.data.data.forecast[0].type : ''
          this.lower = res.data.data.forecast[0].low.substr(2)
          this.higher = res.data.data.forecast[0].high.substr(2)
            console.log(res.data.data);
        })
        .catch(function(error) {
            console.log(error);
        });
    }
 }

效果如下图

返回示例 res.data.data 根据情况显示相应字段

上述的链接有时会调取失败，新找了一个地址可以获取天气信息的，见方法二

方法二

1、引入axios、定义图标名称的文件

import axios from 'axios';
import weathJson from '../../utils/weath.json';
import weekJson from '../../utils/week.json';

图标weath.json如下：其中名称对应相应的字体图标文件，字体图标文件见上传的资源

{
    "晴": "icon-qing",
    "少云": "icon-duoyun",
    "晴间多云": "icon-duoyun",
    "多云": "icon-duoyun",
    "阴": "icon-yin",
    "有风": "icon-dafeng",
    "平静": "icon-qing",
    "微风": "icon-dafeng",
    "和风": "icon-dafeng",
    "清风": "icon-dafeng",
    "强风/劲风": "icon-dafeng",
    "疾风": "icon-dafeng",
    "大风": "icon-dafeng",
    "烈风": "icon-dafeng",
    "风暴": "icon-dafeng",
    "狂爆风": "icon-dafeng",
    "飓风": "icon-dafeng",
    "热带风暴": "icon-dafeng",
    "霾": "icon-wumai",
    "中度霾": "icon-wumai",
    "重度霾": "icon-wumai",
    "严重霾": "icon-wumai",
    "阵雨": "icon-xiayu",
    "雷阵雨": "icon-xiayu",
    "雷阵雨并伴有冰雹": "icon-xiayu",
    "中雨": "icon-xiayu",
    "小雨": "icon-xiayu",
    "大雨": "icon-xiayu",
    "暴雨": "icon-xiayu",
    "大暴雨": "icon-xiayu",
    "特大暴雨": "icon-xiayu",
    "强阵雨": "icon-xiayu",
    "强雷阵雨": "icon-xiayu",
    "极端降雨": "icon-xiayu",
    "毛毛雨/细雨": "icon-xiayu",
    "雨": "icon-xiayu",
    "小雨-中雨": "icon-xiayu",
    "中雨-大雨": "icon-xiayu",
    "大雨-暴雨": "icon-xiayu",
    "暴雨-大暴雨": "icon-xiayu",
    "大暴雨-特大暴雨": "icon-xiayu",
    "雨雪天气": "icon-xue",
    "雨夹雪": "icon-xue",
    "阵雨夹雪": "icon-xue",
    "冻雨": "icon-xiayu",
    "雪":"icon-xue",
    "阵雪":"icon-xue",
    "小雪":"icon-xue",
    "中雪":"icon-xue",
    "大雪":"icon-xue",
    "暴雪":"icon-xue",
    "小雪-中雪":"icon-xue",
    "中雪-大雪":"icon-xue",
    "大雪-暴雪":"icon-xue",
    "浮尘":"icon-yangsha",
    "扬沙":"icon-yangsha",
    "沙尘暴":"icon-yangsha",
    "强沙尘暴":"icon-yangsha",
    "龙卷风":"icon-yangsha",
    "雾":"icon-wu",
    "浓雾":"icon-wu",
    "强浓雾":"icon-wu",
    "轻雾":"icon-wu",
    "大雾":"icon-wu",
    "特强浓雾":"icon-wu",            
    "热":"icon-re1",
    "冷":"icon-lengcangqu",
    "未知":"icon-qing"
}

一周的汉字文件 week.json

{
    "1":"周一",
    "2":"周二",
    "3":"周三",
    "4":"周四",
    "5":"周五",
    "6":"周六",
    "7":"周日"
}

2、定义变量

cityName: "",
adcode: '',
weathArray: []

3、在高德开放平台新建应用获取key，通过key获取所在城市code

4、根据key获取城市信息

GetLocation(){
     axios({
     url: 'https://restapi.amap.com/v3/ip',
     method: 'post',
     params: {
         key: 'gaode-your_key'
     },
     }).then((res)=> {
         this.getWeathData(res.data.city, res.data.adcode)
     }).catch();
 },

5、根据code获取天气信息

getWeathData(cityName, cityCode) {
      this.cityName = cityName
       let that = this;
       axios({
           url: "https://restapi.amap.com/v3/weather/weatherInfo",
           method: "GET",
           params: {
           key: "4ac62e6ba8a3f68f05421f6ee7dd6f29",
           city: cityCode,
           extensions: 'all',
           output: "JSON"
           },
       }).then(function (resp) {
           that.renderWeathDom(resp.data);
       })
       .catch();
   },

6、结构渲染

<div class="three_days" v-for="(item,i) in weathArray" :key="i">
    <span>{{  item.date }}</span>
    <svg class="icon_weather" aria-hidden="true">
        <use :xlink:href="`#${item.dayweatherIcon}`"></use>
    </svg>
    <span>{{item.nighttemp}}-{{item.daytemp}}℃</span>
    <span>{{item.dayweather}}</span>
    <span>{{item.nightwind}}风{{item.daypower}}级</span>
</div>

css

.three_days{
  display: inline-flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  .icon_weather{
width: 50px;
height: 50px;
margin: 15px 0;
}
  span:nth-child(4){
      margin: 15px 0;
  }
}

如图：