1.params参数

路由链接(携带参数)：<Link to='/demo/test/tom/18'}>详情</Link>
注册路由(声明接收)：<Route path="/demo/test/:name/:age" component={Test}/>
接收参数：this.props.match.params

2.search参数

路由链接(携带参数)：<Link to='/demo/test?name=tom&age=18'}>详情</Link>
注册路由(无需声明，正常注册即可)：<Route path="/demo/test" component={Test}/>
接收参数：this.props.location.search
备注：获取到的search是urlencoded编码字符串，需要借助querystring解析

3.state参数

路由链接(携带参数)：<Link to={{pathname:'/demo/test',state:{name:'tom',age:18}}}>详情</Link>
注册路由(无需声明，正常注册即可)：<Route path="/demo/test" component={Test}/>
接收参数：this.props.location.state
备注：刷新也可以保留住参数
message.js

import React, { Component } from 'react'
import {Link,Route} from 'react-router-dom'
import Detail from './Detail'

export default class Message extends 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>
                <ul>
                    {
                        messageArr.map((msgObj)=>{
                            return (
                                <li key={msgObj.id}>

                                    {/* 向路由组件传递params参数 */}
                                    {/* <Link to={`/home/message/detail/${msgObj.id}/${msgObj.title}`}>{msgObj.title}</Link> */}

                                    {/* 向路由组件传递search参数 */}
                                    {/* <Link to={`/home/message/detail/?id=${msgObj.id}&title=${msgObj.title}`}>{msgObj.title}</Link> */}

                                    {/* 向路由组件传递state参数 */}
                                    <Link to={{pathname:'/home/message/detail',state:{id:msgObj.id,title:msgObj.title}}}>{msgObj.title}</Link>

                                </li>
                            )
                        })
                    }
                </ul>
                <hr/>
                {/* 声明接收params参数 */}
                {/* <Route path="/home/message/detail/:id/:title" component={Detail}/> */}

                {/* search参数无需声明接收，正常注册路由即可 */}
                {/* <Route path="/home/message/detail" component={Detail}/> */}

                {/* state参数无需声明接收，正常注册路由即可 */}
                <Route path="/home/message/detail" component={Detail}/>

            </div>
        )
    }
}

detail.jsx

import React, { Component } from 'react'
// import qs from 'querystring'

const DetailData = [
    {id:'01',content:'你好，中国'},
    {id:'02',content:'你好，尚硅谷'},
    {id:'03',content:'你好，未来的自己'}
]
export default class Detail extends Component {
    render() {
        console.log(this.props);

        // 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
        const {id,title} = this.props.location.state || {}

        const findResult = DetailData.find((detailObj)=>{
            return detailObj.id === id
        }) || {}
        return (
            <ul>
                <li>ID:{id}</li>
                <li>TITLE:{title}</li>
                <li>CONTENT:{findResult.content}</li>
            </ul>
        )
    }
}