2017-10-10 64 views
0

我在编写一个程序,以2个城市的名称作为输入,然后使用openweathermap API获取2个城市的温度。但是,我无法调用API。我尝试了一些教程,但它有点混乱。如果有人能够帮助我连接到API并获取城市的温度并将其打印在屏幕上,我会很高兴。在React中从openweather API获取数据

import React, { Component } from 'react'; 
import logo from './logo.svg'; 
import './App.css'; 
import _ from 'lodash'; 
import Request from 'superagent'; 

class App extends React.Component { 
    constructor(props) { 
    super(props); 
    this.state = {input1: '', input2: ''}; 

    this.handleChange = this.handleChange.bind(this); 
    this.handleSubmit = this.handleSubmit.bind(this); 
    } 

    handleChange(event) { 
    this.setState({[event.target.name]: event.target.value}); 
    } 

    componentDidMount(){ 
     var city1 = this.state.input1; 
     var url= 'http://api.openweathermap.org/data/2.5/weather?q={city1}&units=metric&APPID=83c6ba4dd07d83514536821a8a51d6d5'; 
     Request.get(url).then((response) => { 
      this.setState({ 
       report: response.body.Search 
      }); 
     }); 
    } 

    handleSubmit(event) { 
     var temperature = _.map(this.state.report, (city) => { 
      return (<p>{city.main.temp}</p>); 
     }); 

    event.preventDefault(); 
    } 

    render() { 
     return (
     <div className="App"> 
     <header className="App-header"> 
      <img src={logo} className="App-logo" alt="logo" /> 
     </header> 
     <div className="container"> 
      <h1>Where Should I go?</h1> 
      <form onSubmit={this.handleSubmit}> 
      <div className="cityboxdiv"> 
       <input name="input1" type="text" id="tb1" className="citybox" onChange={this.handleChange} placeholder="Enter City1" autoFocus /> 
       <input name="input2" type="text" id="tb2" className="citybox" onChange={this.handleChange} placeholder="Enter City2"/> 
      </div> 
      <div className="btn-div"> 
       <button type="submit" className="sub-btn">Tell Me!</button> 
      </div> 
      </form> 
     </div> 
     </div> 
    ); 
    } 
} 

export default App; 

我想知道的两件事是如何将城市名称传入url以便我们可以获取数据。一旦我们获得了数据,我怎样才能显示城市的温度值。

回答