Vue+axios基础项目实战——天知道（天气预报查询应用）

一、分析项目的业务逻辑回车查询按下回车查询数据渲染数据点击查询点击搜索或点击城市标签查询数据渲染数据二、基础静态页面实现1. index.html<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8" /><meta name="viewport" content="width=de

代码越写越饿

2376人浏览 · 2022-03-01 17:36:07

代码越写越饿 · 2022-03-01 17:36:07 发布

一、分析项目的业务逻辑

回车查询

按下回车
查询数据
渲染数据

点击查询

点击搜索或点击城市标签
查询数据
渲染数据

二、基础静态页面实现

1. index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <meta http-equiv="X-UA-Compatible" content="ie=edge" />
  <title>天知道</title>
  <link rel="stylesheet" href="css/reset.css" />
  <link rel="stylesheet" href="css/index.css" />
</head>

<body>
<div class="wrap" id="app">
  <div class="search_form">
    <div class="logo"><img src="img/logo.png" alt="logo" /></div>
    <div class="form_group">
      <input
              type="text"
              class="input_txt"
              placeholder="请输入查询的天气"
              @keyup.enter="searchWeather"
              v-model="city"
      />
      <button class="input_sub" @click="searchWeather">
        搜 索
      </button>
    </div>
    <div class="hotkey">
      <a href="javascript:" @click="changeCity('北京')">北京</a>
      <a href="javascript:" @click="changeCity('上海')">上海</a>
      <a href="javascript:" @click="changeCity('广州')">广州</a>
      <a href="javascript:" @click="changeCity('深圳')">深圳</a>
    </div>
  </div>
  <ul class="weather_list">
    <li v-for="item in weatherList">
      <div class="info_type"><span class="iconfont">{{item.type}}</span></div>
      <div class="info_temp">
        <b>{{item.low}}</b>
        ~
        <b>{{item.high}}</b>
      </div>
      <div class="info_date"><span>{{item.date}}</span></div>
    </li>
  </ul>
</div>
<!-- 开发环境版本，包含了有帮助的命令行警告 -->
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<!-- 官网提供的 axios 在线地址 -->
<script src="https://unpkg.com/axios/dist/axios.min.js"></script>
<!-- 带入外部写的js -->
<script src="js/main.js"></script>
</body>
</html>

2. index.css

body{
    font-family:'Microsoft YaHei';
}
.wrap{
    position: fixed;
    left:0;
    top:0;
    width:100%;
    height:100%;
    background:#fff;

}
.search_form{
    width:640px;
    margin:100px auto 0;
}
.logo img{
    display:block;
    margin:0 auto;
}
.form_group{
    width:640px;
    height:40px;
    margin-top:45px;
}
.input_txt{
   width:538px;
   height:38px;
   padding:0px;
   float:left;
   border:1px solid #41a1cb;
   outline:none;
   text-indent:10px;
}

.input_sub{
    width:100px;
    height:40px;
    border:0px;
    float: left;
    background-color: #41a1cb;
    color:#fff;
    font-size:16px;
    outline:none;
    cursor: pointer;
    position: relative;
}
.input_sub.loading::before{
    content:'';
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: url('../img/loading.gif');
}

.hotkey{
    margin:3px 0 0 2px;
}

.hotkey a{
    font-size:14px;
    color:#666;
    padding-right:15px;
}
.weather_list{
    height:200px;
    text-align:center;
    margin-top:50px;
    font-size:0px;
}
.weather_list li{
    display:inline-block;
    width:140px;
    height:200px;
    padding:0 10px;
    overflow: hidden;
    position: relative;
    background:url('../img/line.png') right center no-repeat;
    background-size: 1px 130px;
}

.weather_list li:last-child{
    background:none;
}

.info_date{
    width:100%;
    height:40px;
    line-height:40px;
    color:#999;
    font-size:14px;
    left:0px;    
    bottom:0px;    
    margin-top: 15px;
}
.info_date b{
    float: left;
    margin-left:15px;
}

.info_type span{
    color:#fda252;
    font-size:30px;
    line-height:80px;
}
.info_temp{
    font-size:14px;  
    color:#fda252;
}
.info_temp b{
    font-size:13px;
}
.tem .iconfont {
    font-size: 50px;
  }

3. reset.css

body,ul,h1,h2,h3,h4,h5,h6{
    margin: 0;
    padding: 0;
}
h1,h2,h3,h4,h5,h6{
    font-size:100%;
    font-weight:normal;
}
a{
    text-decoration:none;
}
ul{
    list-style:none;
}
img{
    border:0px;
}

/* 清除浮动，解决margin-top塌陷 */
.clearfix:before,.clearfix:after{
    content:'';
    display:table;    
}
.clearfix:after{
    clear:both;
}
.clearfix{
    zoom:1;
}

.fl{
    float:left;
}
.fr{
    float:right;
}

三、查询功能的实现

main.js

/*
    请求地址：http://wthrcdn.etouch.cn/weather_mini
    请求方法：get
    请求参数：city(城市名)
    响应内容：天气信息

    1.点击回车
    2.查询数据
    3.渲染数据
 */
let app=new Vue({
    el:"#app",
    data:{
      city:'',
        weatherList:[]
    },
    methods:{
        searchWeather:function (){
            // console.log(this.city);
            //调用接口
            //保存this
            let that=this;
            axios.get('http://wthrcdn.etouch.cn/weather_mini?city='+this.city)
                .then(function (response){
                    // console.log(response.data.data.forecast);
                    that.weatherList=response.data.data.forecast;
                }).catch(function (err){
            })
        },
        changeCity:function (city){
            this.city=city;
            this.searchWeather();
        }
    }
})

到此功能就完成了！

PS：部分编译器会在输入接口地址的时候，出现让你把 http 改为 https 的情况，此时不要修改，不然将会无法得到数据。