react 学习demo 路由网络渲染数据和 解析html
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import React, { Component } from ‘react‘; import {Link } from "react-router-dom"; const axios = require(‘axios‘); class Home extends Component { constructor(props) { super(props); this.state = { list:[], domain:‘http://a.xxx.com/‘ }; } requestData=()=>{ var api=this.state.domain+‘api/productlist‘; axios.get(api) .then((response)=>{ console.log(response); this.setState({ list:response.data.result }) }) .catch(function (error) { console.log(error); }) } componentDidMount(){ this.requestData(); } render() { return ( <div className="home"> <div className="list"> { this.state.list.map((value,key)=>{ return( <div className="item" key={key}> <h3 className="item_cate">{value.title}</h3> <ul className="item_list"> { value.list.map((v,k)=>{ return( <li key={k}> <Link to={`/pcontent/${v._id}`}> <div className="inner"> <img src={`${this.state.domain}${v.img_url}`} /> <p className="title">{v.title}</p> <p className="price">{v.price}元</p> </div> </Link> </li> ) }) } </ul> </div> ) }) } </div> </div> ); } } export default Home;
/* react解析html https://reactjs.org/docs/dom-elements.html <div className="p_content" dangerouslySetInnerHTML={{__html: this.state.list.content}}> </div> */ import React, { Component } from ‘react‘; import {Link } from "react-router-dom"; const axios = require(‘axios‘); class Pcontent extends Component { constructor(props) { super(props); this.state = { list:[], domain:‘http://a.itying.com/‘ }; } requestData(id){ var api=this.state.domain+‘api/productcontent?id=‘+id; axios.get(api) .then((response)=>{ console.log(response); this.setState({ list:response.data.result[0] }) }) .catch(function (error) { console.log(error); }) } componentWillMount(){ //id console.log(this.props.match.params.id) let id=this.props.match.params.id; this.requestData(id); } render() { return ( <div className="pcontent"> <div className="back"> <Link to=‘/‘>返回</Link></div> <div className="p_content"> <div className="p_info"> <img src={`${this.state.domain}${this.state.list.img_url}`} /> <h2>{this.state.list.title}</h2> <p className="price">{this.state.list.price}/份</p> </div> <div className="p_detial"> <h3> 商品详情 </h3> <div className="p_content" dangerouslySetInnerHTML={{__html: this.state.list.content}}> </div> </div> </div> <footer className="pfooter"> <div className="cart"> <strong>数量:</strong> <div className="cart_num"> <div className="input_left">-</div> <div className="input_center"> <input type="text" readOnly="readonly" value="1" name="num" id="num" /> </div> <div className="input_right">+</div> </div> </div> <button className="addcart">加入购物车</button> </footer> </div> ); } } export default Pcontent;
/* react路由的配置: 1、找到官方文档 https://reacttraining.com/react-router/web/example/basic 2、安装 cnpm install react-router-dom --save 3、找到项目的根组件引入react-router-dom import { BrowserRouter as Router, Route, Link } from "react-router-dom"; 4、复制官网文档根组件里面的内容进行修改 (加载的组件要提前引入) <Router> <Link to="/">首页</Link> <Link to="/news">新闻</Link> <Link to="/product">商品</Link> <Route exact path="/" component={Home} /> <Route path="/news" component={News} /> <Route path="/product" component={Product} /> </Router> exact表示严格匹配 react动态路由传值 1、动态路由配置 <Route path="/content/:aid" component={Content} /> 2、对应的动态路由加载的组件里面获取传值 this.props.match.params 跳转:<Link to={`/content/${value.aid}`}>{value.title}</Link> react get传值 1、获取 this.props.location.search */ import React, { Component } from ‘react‘; import { BrowserRouter as Router, Route, Link } from "react-router-dom"; import Home from ‘./components/Home‘; import Pcontent from ‘./components/Pcontent‘; import ‘./assets/css/index.css‘ class App extends Component { render() { return ( <Router> <div> <Route exact path="/" component={Home} /> <Route path="/pcontent/:id" component={Pcontent} /> </div> </Router> ); } } export default App;
@charset "UTF-8"; body, div, ul, li, ol, h1, h2, h3, h4, h5, h6, input, textarea, select, p, dl, dt, dd, a, img, button, form, table, th, tr, td, tbody, article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section { margin: 0; padding: 0; } html { font-size: 62.5%; /* 根元素是10px; 16*62.5%=10 默认在pc端根元素会解析成12px */ } body { font: 12px/1.5 ‘Microsoft YaHei‘,‘宋体‘, Tahoma, Arial, sans-serif; color: #555; background-color: #F7F7F7; } em, i { font-style: normal; } ul, li { list-style-type: none; } strong { font-weight: normal; } .clearfix:after { content: ""; display: block; visibility: hidden; height: 0; clear: both; } /*# sourceMappingURL=basic.css.map */ /*列表css*/ /*列表*/ .item .item_cate { text-align: center; padding: .5rem; } .item .item_list { display: flex; flex-wrap: wrap; padding: 0px .5rem; } .item .item_list li { width: 33.3%; padding: .5rem; box-sizing: border-box; } .item .item_list li a{ text-decoration: none; color:#555; } .item .item_list li .inner { background: #fff; width: 100%; border-radius: .5rem; overflow: hidden; } .item .item_list li .inner img { width: 100%; } .item .item_list li .inner p { padding: .2rem .5rem; } .item .item_list li .inner .title { font-weight: bold; } .price{ color:red; } /*详情*/ .back { height: 3.8rem; line-height: 3.8rem; width: 3.8rem; border-radius: 50%; background: #000; position: fixed; top: .5rem; left: .5rem; } .back a{ color: #fff; text-decoration: none; } .back:before { content: ""; display: block; width: .8rem; height: .8rem; border-left: .2rem solid #fff; border-bottom: .2rem solid #fff; float: left; position: relative; top: 1.3rem; left: .6rem; transform: rotate(45deg); margin-right: .4rem; } .p_content .p_info { background: #fff; } .p_content .p_info img { width: 100%; height: 18rem; } .p_content .p_info h2 { padding: .2rem .5rem; } .p_content .p_info .price { padding: .2rem .5rem; color: red; } .p_content .p_detial { background: #fff; margin-top: 1rem; } .p_content .p_detial h3 { padding: .5rem; } .p_content .p_detial .p_content { padding: 1rem; } .p_content .p_detial .p_content img { max-width: 100%; display: block; margin: 0 auto; } .p_content .p_detial .p_content * { line-height: 1.5; color: #666; } /*详情*/ .back { height: 3.8rem; line-height: 3.8rem; width: 3.8rem; border-radius: 50%; background: #000; position: fixed; top: .5rem; left: .5rem; color: #fff; } .back:before { content: ""; display: block; width: .8rem; height: .8rem; border-left: .2rem solid #fff; border-bottom: .2rem solid #fff; float: left; position: relative; top: 1.3rem; left: .6rem; transform: rotate(45deg); margin-right: .4rem; } .p_content .p_info { background: #fff; } .p_content .p_info img { width: 100%; height: 18rem; } .p_content .p_info h2 { padding: .2rem .5rem; } .p_content .p_info .price { padding: .2rem .5rem; color: red; } .p_content .p_detial { background: #fff; margin-top: 1rem; } .p_content .p_detial h3 { padding: .5rem; } .p_content .p_detial .p_content { padding: 1rem; } .p_content .p_detial .p_content img { max-width: 100%; display: block; margin: 0 auto; } .p_content .p_detial .p_content * { line-height: 1.5; color: #666; } .pfooter { position: fixed; bottom: 0px; height: 4.4rem; line-height: 4.4rem; background: #fff; left: 0px; width: 100%; border-top: 1px solid #eee; } .pfooter .cart { float: left; display: flex; } .pfooter .cart strong { flex: 1; font-size: 1.6rem; padding: 0rem .5rem; } .pfooter .cart .cart_num { width: 10rem; display: flex; margin-top: .8rem; } .pfooter .cart .cart_num .input_left, .pfooter .cart .cart_num .input_right { flex: 1; width: 2.8rem; height: 2.8rem; line-height: 2.8rem; text-align: center; color: red; border: 1px solid #eee; font-size: 2.4rem; } .pfooter .cart .cart_num .input_center { flex: 1; } .pfooter .cart .cart_num .input_center input { width: 2rem; text-align: center; width: 100%; height: 2.8rem; border: none; border-top: 1px solid #eee; border-bottom: 1px solid #eee; float: left; } .pfooter .addcart { float: right; background: red; color: #fff; height: 3rem; border: none; padding: 0 .5rem; border-radius: .5rem; margin-top: .8rem; margin-right: .5rem; }
/* react解析html https://reactjs.org/docs/dom-elements.html <div className="p_content" dangerouslySetInnerHTML={{__html: this.state.list.content}}> </div> */ import React, { Component } from ‘react‘; import {Link } from "react-router-dom"; const axios = require(‘axios‘); class Pcontent extends Component { constructor(props) { super(props); this.state = { list:[], domain:‘http://a.itying.com/‘ }; } requestData(id){ var api=this.state.domain+‘api/productcontent?id=‘+id; axios.get(api) .then((response)=>{ console.log(response); this.setState({ list:response.data.result[0] }) }) .catch(function (error) { console.log(error); }) } // componentWillMount(){ // } componentDidMount(){ //id console.log(this.props.match.params.id) let id=this.props.match.params.id; this.requestData(id); } render() { return ( <div className="pcontent"> <div className="back"> <Link to=‘/‘>返回</Link></div> <div className="p_content"> <div className="p_info"> {this.state.list.img_url?<img src={`${this.state.domain}${this.state.list.img_url}`} />:""} {/* <img src={`${this.state.domain}${this.state.list.img_url}`} /> */} <h2>{this.state.list.title}</h2> <p className="price">{this.state.list.price}/份</p> </div> <div className="p_detial"> <h3> 商品详情 </h3> <div className="p_content" dangerouslySetInnerHTML={{__html: this.state.list.content}}> </div> </div> </div> <footer className="pfooter"> <div className="cart"> <strong>数量:</strong> <div className="cart_num"> <div className="input_left">-</div> <div className="input_center"> <input type="text" readOnly="readonly" value="1" name="num" id="num" /> </div> <div className="input_right">+</div> </div> </div> <button className="addcart">加入购物车</button> </footer> </div> ); } } export default Pcontent;
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