1. 页面路由参数传递

1.1 动态路由参数

描述:

以“/detail/:id”形式传递的数据,在落地组件中通过this.props.match.params得到。

使用:

App.jsx:

import React, { Component } from 'react'
import { Route, Link, NavLink, Switch, Redirect } from 'react-router-dom'
// 匹配成功后渲染的组件
import Home from './views/Home'
import About from './views/About'
import Detail from './views/Detail'
import Notfound from './views/Notfound'
class App extends Component {
  render() {
    return (
      <div>
        <h3>App组件</h3>
        <div>
          <NavLink exact to="/">Home</NavLink>---
          <NavLink to="/about">About</NavLink>
        </div>
        <hr />
        <Route path="/home" component={Home} />
        <Route path="/about" component={About} />
        {/* /detail/1   /detail/2 ... 匹配成功;参数可以传递多个 */}
        <Route path="/detail/:id/:name?" component={Detail} />
            
        <Redirect exact from="/" to="/home" />
            
        <Route component={Notfound} />
        </Switch>
      </div>
    )
  }
}
export default App

about页面:

import React, { Component } from 'react'
import { Link } from 'react-router-dom'
class About extends Component {
  render() {
    return (
      <div>
        <h3>关于我们</h3>
        <hr />
        <ul>
          {Array(10)
            .fill('')
            .map((_, index) => (
              <li key={index}>
                <Link to={`/detail/${index}?`}>新闻 -- {index}</Link>
              </li>
            ))}
        </ul>
      </div>
    )
  }
}
export default About

详情页面:

import React, { Component } from 'react'
class Detail extends Component {
  render() {
    // 获取动态路由参数   对象
    let id = this.props.match.params.id || 0
    return (
      <div>
        <h3>详情页面 --- {id}</h3>
      </div>
    )
  }
}
export default Detail

1.2 search字符串

描述:

通过地址栏中的 ?key=value&key=value传递。

使用:

关于页面:

import React, { Component } from 'react'
import { Link } from 'react-router-dom'
class About extends Component {
  render() {
    return (
      <div>
        <h3>关于我们</h3>
        <hr />
        <ul>
          {Array(10)
            .fill('')
            .map((_, index) => (
              <li key={index}>
                <Link to={`/detail/${index}?age=${2 + index}`}>新闻 -- {index}</Link>
              </li>
            ))}
        </ul>
      </div>
    )
  }
}
export default About

详情页面:

import React, { Component } from 'react'
import qs from 'querystring'
// 封装一个方法,获取数据
// String.prototype.toSearch = function () {
//   let searchData = {}
//   const search = new URLSearchParams(this)
//   search.forEach((value, key) => {
//     searchData[key] = value
//   })
//   return searchData
// }
class Detail extends Component {
  render() {
    // 获取动态路由参数   对象
    let id = this.props.match.params.id || 0
    // search字符串  字符串
    console.log(this.props.location.search)
    // 将字符串转为对象
    console.log(qs.parse(this.props.location.search.slice(1)))
    // 如果用search字符串,推荐用它
    const search = new URLSearchParams(this.props.location.search)
    // 获取就字段数据
    console.log(search.get('age'))
    let searchData = {}
    search.forEach((value, key) => {
      searchData[key] = value
    })
    console.log(searchData)
    // 使用迭代对象获取
    // for (let [key, value] of search.entries()) {
    //   searchData[key] = value
    // }
    // console.log(searchData)
    // 使用封装的方法获取
    // console.log(this.props.location.search.toSearch())
    return (
      <div>
        <h3>详情页面 --- {id}</h3>
      </div>
    )
  }
}
export default Detail

1.3 页面参数隐式传递

描述:

隐式传参(state),通过地址栏是观察不到的;通过路由对象中的state属性进行数据传递,在落地组件中通过this.props.location.state得到。

使用:

home页面:

import React, { Component } from 'react'
import { Link } from 'react-router-dom'
class Home extends Component {
  jumpDetail = () => {
    this.props.history.push({
      pathname: '/detail',
      search: 'name=zhangsan',
      state: { id: 200 }
    })
  }
  render() {
    return (
      <div>
        <div>
          {/* 通过state隐式来传递数据到目标页面 */}
          <Link to={{ pathname: '/detail', state: { id: 100 }, search: 'name=lisi' }}>去详情</Link>
        </div>
        <hr />
        {/* 编程式导航 */}
        <button onClick={this.jumpDetail}>去详情页</button>
      </div>
    )
  }
}
export default Home

详情页面:

import React, { Component } from 'react'
class Detail extends Component {
  render() {
    // 获取页面隐式传过来的state数据  对象
    console.log(this.props.location.state)
    console.log(this.props.location.search.toSearch())
    return (
      <div>
        <h3>详情页面</h3>
      </div>
    )
  }
}
export default Detail

tosearch方法(已导入入口文件中,所以可以直接使用):

String.prototype.toSearch = function () {
  let searchData = {}
  if (this.toString() != '') {
    const search = new URLSearchParams(this.toString())
    search.forEach((value, key) => {
      searchData[key] = value
    })
  }
  return searchData
}

2. 嵌套路由

后台首页:

import React, { Component } from 'react'
import { NavLink, Redirect, Route, Switch } from 'react-router-dom'
import { AdminContainer } from './style'
import Index from '../Index'
import User from '../User'
class Admin extends Component {
  render() {
    // 在子路由定义的组件中,可以通过props中提供的路由对象来获取父路由定义的地址
    // let parentRoutePath = this.props.match.path
    return (
      <AdminContainer>
        <h3>后台首页</h3>
        <div>
          <ul>
            <li>
              <NavLink to="/admin/index">后台首页</NavLink>
            </li>
            <li>
              <NavLink to="/admin/user">用户列表</NavLink>
            </li>
          </ul>
          <div>
            <Switch>
              <Route path='/admin/index' component={Index} />
              <Route path='/admin/user' component={User} />
              <Redirect from='/admin' to='/admin/index' />
            </Switch>
          </div>
        </div>
      </AdminContainer>
      // <AdminContainer>
      //   <h3>后台首页</h3>
      //   <div>
      //     <ul>
      //       <li>
      //         <NavLink to={`${parentRoutePath}/index`}>后台首页</NavLink>
      //       </li>
      //       <li>
      //         <NavLink to={`${parentRoutePath}/user`}>用户列表</NavLink>
      //       </li>
      //     </ul>
      //     <div>
      //       <Switch>
      //         <Route path={`${parentRoutePath}/index`} component={Index} />
      //         <Route path={`${parentRoutePath}/user`} component={User} />
      //         <Redirect exact from={parentRoutePath} to={`${parentRoutePath}/index`} />
      //       </Switch>
      //     </div>
      //   </div>
      // </AdminContainer>
    )
  }
}
export default Admin

到此这篇关于React路由参数传递与嵌套路由的实现详细讲解的文章就介绍到这了,更多相关React路由参数传递内容请搜索阿兔在线工具以前的文章或继续浏览下面的相关文章希望大家以后多多支持阿兔在线工具!

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