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反应路由器 URL 参数不起作用

本文介绍了反应路由器 URL 参数不起作用的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我无法使 React Router 中的 URL 参数功能正常工作，任何见解都会有所帮助！我尝试使用 'react-router-dom' 而不是 'react-router' 但我得到了这个人得到的错误:https://github.com/ReactTraining/react-router/issues/1799

当我执行 localhost:8000 时，应用程序可以工作.当我转到 localhost:8000/123 时，浏览器会按原样呈现 index.html 没有反应. Express 是否会干扰 React?在 Express 中，我只有以下内容:

app.get('*', function response(req, res) {res.write(middleware.fileSystem.readFileSync(path.join(__dirname, 'dist/index.html')));重发();});

这是我的 ma​​in.js:

import 'babel-polyfill';从反应"导入反应；从 'react-dom' 导入 ReactDOM；从反应路由器"导入{路由器，浏览器历史}；从./shared/components/Routes"导入路由；const ROOT_ELEMENT = 'app';ReactDOM.render((<路由器历史={browserHistory}>{路线}</路由器>), document.getElementById(ROOT_ELEMENT));

我的routes.js:

import { Route, IndexRoute, Link } from 'react-router';从'./App'导入应用程序；从../../pages/home/page"导入主页；从../../pages/about/page"导入关于页面；const Child = ({ match }) =>(<div><h3>ID:{match.params.id}</h3>

)导出默认值 (<Route path="/" component={App}><IndexRoute 组件={HomePage}/>{/* <Route path="about" component={AboutPage}/>*/}<Route path="/:id" component={Child}/></路线>);

我的 Home 组件在不同的文件中是这样定义的(忽略了所有的导入和生命周期函数):

导出默认 React.createClass({渲染:函数(){{* 一堆 JSX 放在这里 *}}});

根据要求，我的 index.html 文件:

<头><meta charset="utf-8"><meta http-equiv="x-ua-compatible" content="ie=edge"><title>同意书</title><meta name="description" content="隐私同意网络表单"><meta name="viewport" content="width=device-width, initial-scale=1"><!--Google Material Design 图标--><link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet"><身体><div id="应用程序"></div></html>

由于我的 webpack 配置，html 没有将包作为脚本标记(包被注入！)(以下代码只是配置的一部分):

条目:['webpack-hot-middleware/client','引导加载程序',path.join(__dirname, 'src/main.js')],输出: {路径:path.join(__dirname, '/dist/'),文件名:'[名称].js'，公共路径:'/'},插件: [新的 HtmlWebpackPlugin({模板:'src/index.tpl.html'，注入:'身体'，文件名:'index.html'})
解决方案

当你向你的应用添加新的路由时，你不能依赖热重载来注入新的路由 + 组件.我不得不 CTRL+C 并再次运行 npm start.

这解决了问题！！

还有 react-router-dom 是 React Router v4 包，而 react-router 是旧版本.感谢@HalCarleton 指出这一点.我看到到处都是 react-router 的代码示例，而官方文档显示的是 react-router-dom，我真的很困惑为什么会有两种不同类型的包.

I'm unable to get the URL parameter feature in React Router to work, any insight would be helpful! I tried using the 'react-router-dom' instead of 'react-router' but I get the errors this guy is getting: https://github.com/ReactTraining/react-router/issues/1799

When I do localhost:8000, the app works. When I go to localhost:8000/123, the browser renders the index.html as is with no react. Is Express interfering with React? In Express all i have is the following:

app.get('*', function response(req, res) {
  res.write(middleware.fileSystem.readFileSync(path.join(__dirname, 'dist/index.html')));
  res.end();
});

Here's my main.js:

import 'babel-polyfill';
import React from 'react';
import ReactDOM from 'react-dom';
import { Router, browserHistory } from 'react-router';
import Routes from './shared/components/Routes';
const ROOT_ELEMENT = 'app';
ReactDOM.render((
   <Router history={browserHistory}>
   {Routes}
   </Router>
), document.getElementById(ROOT_ELEMENT));

My routes.js:

import { Route, IndexRoute, Link } from 'react-router';

import App from './App';
import HomePage from '../../pages/home/page';
import AboutPage from '../../pages/about/page';

const Child = ({ match }) => (
  <div>
    <h3>ID: {match.params.id}</h3>
  </div>
)

export default (
  <Route path="/" component={App}>
    <IndexRoute component={HomePage} />
    {/* <Route path="about" component={AboutPage} /> */}
    <Route path="/:id" component={Child} />
  </Route>
);

My Home component is defined like this in a different file (left out all the imports and lifecycle functions):

export default React.createClass({
  render: function() {
     {* bunch of JSX goes here *}
  }
});

As requested, my index.html file:

<html lang="en">
<head>
  <meta charset="utf-8">
  <meta http-equiv="x-ua-compatible" content="ie=edge">
  <title>Consent Form</title>
  <meta name="description" content="Privacy Consent Webform">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <!--Google Material Design Icons-->
  <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
</head>
<body>
  <div id="app"></div>
</body>
</html>

The html doesn't have the bundle as a script tag because of my webpack config (the bundle is injected!)(the following code is just a piece of the config):

entry: [
    'webpack-hot-middleware/client',
    'bootstrap-loader',
    path.join(__dirname, 'src/main.js')
  ],
  output: {
    path: path.join(__dirname, '/dist/'),
    filename: '[name].js',
    publicPath: '/'
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: 'src/index.tpl.html',
      inject: 'body',
      filename: 'index.html'
    })
解决方案

When you add new routes to your app, you can't rely on hot reloading to inject the new route + components. I had to CTRL+C and run npm start again.

This solves the issue!!

Also react-router-dom is a React Router v4 package while react-router is an older version. Thanks to @HalCarleton for pointing that out. I saw code examples everywhere with react-router while the official documentation showed react-router-dom and I was really confused as to why there were two different types of packages.

这篇关于反应路由器 URL 参数不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

08-12 15:31
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