React三种路由传值
主要组件
import React from 'react'
import {Link, Route} from 'react-router-dom'
import Detial from './Detial'
class Message extends React.Component{
state = {
messageArr:[
{'id':'01',title:'消息1'},
{'id':'02',title:'消息2'},
{'id':'03',title:'消息3'},
]
}
render(){
const {messageArr} = this.state
return (
<div>
<h1>asd</h1>
<ul>
{
messageArr.map((msgObj)=>{
return(
<li key={msgObj.id}>
{/* 向路由组件传递params参数 */}
{/* <Link to={'/home/message/detial/'+msgObj.id+'/'+msgObj.title}>{msgObj.title}</Link>; */}
{/* 向路由组件传递search参数 */}
{/* <Link to={'/home/message/detial/'+'?id='+msgObj.id+'&title='+msgObj.title}>{msgObj.title}</Link>; */}
{/* 向路由组件传递state参数 */}
<Link to={{pathname:'/home/message/detial',state:{id:msgObj.id,title:msgObj.title}}}>{msgObj.title}</Link>;
</li>
);
})
}
</ul>
<hr/>
{/* 声明接收params参数 */}
{/* <Route path='/home/message/detial/:id/:title' component={Detial}/> */}
{/* search无需声明接收 */}
{/* <Route path='/home/message/detial' component={Detial}/> */}
{/* state无需声明接收 */}
<Route path='/home/message/detial' component={Detial}/>
</div>
);
}
}
接收路由消息组件
import React,{Component} from 'react'
import qs from 'querystring'
class Detial extends Component{
render(){
// 接收params参数
// const {id,title} = this.props.match.params
// 接收search参数
// const {search} = this.props.location;
// const {id,title} = qs.parse(search.slice(1));
// 接收state参数,防止为空(页面刷新)
const {id,title} = this.props.location.state || {};
return(
<ul>
<li>{id}</li>
<li>{title}</li>
<li>asd</li>
</ul>
);
}
}
export default Detial;
```
三种路由传值方式:params传值,search传值,state传值
使用state传值时要是刷新页面会导致数据消失
* ####1.params参数:
* 路由链接(路径携带参数):
* 注册路由(声明接收)
* 接收参数
* ####2.search参数:
* 路由链接(携带参数,?后携带参数)
* 注册路由(无需声明,正常注册即可)
* 接收参数:this.props.location.search
* 备注:获取到的search是编码字符串,需要借助querystring解析
* ####3.state参数
* 路由链接(携带参数)
* 注册路由(无需声明,正常注册即可)
* 接收参数:this.props.location.state
* 备注:刷新也可以保留住参数
本文来自博客园,作者:糖烤栗子&,转载请注明原文链接:https://www.cnblogs.com/grocerystore/p/15092251.html