一款查询天气的WebApp

一、WebApp介绍

1.初始界面

2.搜索结果页面

二、项目代码

1.项目目录

--------app

----------app.component.ts

----------app.component.css

----------app.component.html

----------app.module.ts

2.app.component.html

 <div class="content">
     <div>
         <img width="300" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNTAgMjUwIj4KICAgIDxwYXRoIGZpbGw9IiNERDAwMzEiIGQ9Ik0xMjUgMzBMMzEuOSA2My4ybDE0LjIgMTIzLjFMMTI1IDIzMGw3OC45LTQzLjcgMTQuMi0xMjMuMXoiIC8+CiAgICA8cGF0aCBmaWxsPSIjQzMwMDJGIiBkPSJNMTI1IDMwdjIyLjItLjFWMjMwbDc4LjktNDMuNyAxNC4yLTEyMy4xTDEyNSAzMHoiIC8+CiAgICA8cGF0aCAgZmlsbD0iI0ZGRkZGRiIgZD0iTTEyNSA1Mi4xTDY2LjggMTgyLjZoMjEuN2wxMS43LTI5LjJoNDkuNGwxMS43IDI5LjJIMTgzTDEyNSA1Mi4xem0xNyA4My4zaC0zNGwxNy00MC45IDE3IDQwLjl6IiAvPgogIDwvc3ZnPg==">
     </div>
     <h2>{{title}}</h2>
     <div>
         <form class="form-inline">
           <div class="form-group">
             <label for="exampleInput">Address</label>
             <input type="text" class="form-control" id="exampleInput" placeholder="Please input the address" name="searchAddress">
           </div>
           <button type="button" class="btn btn-default" (click)="start()">Search</button>
         </form>
     </div>
 </div>
 <div class="data" *ngIf="begin">
     <table class="table table-striped">
         <thead>
             <tr>
                 <th>日期</th>
                 <th>天气</th>
                 <th>日间温度</th>
                 <th>夜间温度</th>
                 <th>气压值</th>
                 <th>湿度</th>
                 <th>天气情况</th>
             </tr>
         </thead>
         <tbody>
             <tr *ngFor="let DL of DataList;let i=index;">
                 <td>{{dateString[i]}}</td>
                 <td>{{DL.weather[0].main}}</td>
                 <td>{{DL.temp.day}}</td>
                 <td>{{DL.temp.night}}</td>
                 <td>{{DL.pressure}}</td>
                 <td>{{DL.humidity}}</td>
                 <td><img src="http://openweathermap.org/img/w/{{DL.weather[0].icon}}.png"/></td>
             </tr>
         </tbody>
     </table>
 </div>

3.app.component.ts

 import { Component, OnInit } from '@angular/core';
 import {HttpClient} from '@angular/common/http';
 import 'rxjs/add/operator/toPromise';

 @Component({
     selector: 'app-root',
     templateUrl: './app.component.html',
     styleUrls: ['./app.component.css']
 })
 export class AppComponent{
     title = 'A weather search App!';
     public http;
     Data:any;
     begin=false;//控制天气结果列表是否出现
     searchAddress:string;//查询框文本的变量声明
     dateString:string[];//天气结果列表的七个日期数组声明
     DataList:any;//获取到的数据列表变量声明
     constructor(private Http:HttpClient) {
         this.http = Http;
     }
     now=new Date()//获取当前时间
     GetDateStr(AddDayCount :number) {
         this.now.setDate(this.now.getDate()+AddDayCount);//获取AddDayCount天后的日期
         let y = this.now.getFullYear();
         let m = this.now.getMonth()+1;//获取当前月份的日期
         let d = this.now.getDate();
         return y+"年"+m+"月"+d+"日";
     }
     ngOnInit() {//在组件加载进来的时候就执行
         this.dateString=[this.GetDateStr(0),this.GetDateStr(1),this.GetDateStr(2),this.GetDateStr(3),this.GetDateStr(4),this.GetDateStr(5),this.GetDateStr(6)]
     }
     start(){//点击查询之后执行的函数
         this.searchAddress = (document.getElementsByName('searchAddress')[0] as HTMLInputElement).value;//获取搜索框里面的文本
         if(this.searchAddress.length!=0){//如果搜索框里面的文本不为空，那么结果列表出现，并且发送请求
             this.begin=true;
             this.http.get("http://api.openweathermap.org/data/2.5/forecast/daily?q="+this.searchAddress+"&mode=json&units=metric&cnt=7&appid=f12159c1f548ea9ab7b5ff1907b1df50")
                 .subscribe((data) => {
                     this.Data=data;
                     this.DataList=this.Data.list;
                 },
                 err => { });
         }else{//如果搜索框里面的文本为空，那么结果列表不出现，并且不发送请求
             alert("请输入地址");
         }
     }
 }

4.app.component.css

 .content{
     width: 340px;
     margin: 0 auto;
 }
 .data{
     width: 800px;
     margin: 0 auto;
     margin-top: 10px;
 }

ps：项目中的数据接口亲测可用，大家可以玩玩

项目代码地址https://github.com/Nangxif/WeatherWebApp