Symfony 4 如何使用 React 设置 SPA(单页应用程序)?

问题描述

我无法在 SPA 设置中让 Symfony 4 正常工作.

I've not been able to have Symfony 4 work properly in a SPA setup.

特别是，当我使用 React-router 链接导航时，一切正常.

Specifically, while I navigate using React-router links everything works as it should.

但是如果我尝试直接访问任何路由(除了 home )，Symfony 会拦截它，当然，会抛出一个找不到路由的错误.

But if I try accessing any of the routes ( except home ) directly, Symfony intercepts it and, of course, throws an error for route not found.

将 Symfony 放在子域中并仅将其用作 API 的替代方案是不可行的，因为我需要框架提供的所有用户和会话管理工具.

The alternative of placing Symfony in a sub-domain and using it only as an API is not viable, as I need all the user and session management tools provided by the framework.

当然，我将需要 Symfony 的所有 API 调用路由到后端.

Of course I will need Symfony's routing for all API calls to the back-end.

我使用的是 Symfony 4 的默认目录结构，只在顶层为所有 react/redux 代码添加一个目录/client.

I am using Symfony 4's default directory structure, only adding a directory /client at top level for all react/redux code.

构建代码放在/public/build 下.

The build code is placed under /public/build.

我还尝试使用以下代码在/public 上放置一个 .htaccess 文件，但这没有帮助.

I also tried placing a .htaccess file on /public with below code, but that did not help.

Options -MultiViews
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ index.php [QSA,L]

谢谢

推荐答案

可能有以下解决方案.

带有路由注解的控制器，无论路由可能有多少个参数，所有路由都会通过这个注解来处理:

The controller with route annotation, all routes will be handled by react with this annotation, no matter how many parameters the route might have:

namespace App\Controller;

use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\Routing\Annotation\Route;

class DefaultController extends Controller
{
    /**
     * @Template("default/index.html.twig")
     * @Route("/{reactRouting}", name="index", requirements={"reactRouting"=".+"}, defaults={"reactRouting": null})
     */
    public function index()
    {
        return [];
    }
}

如果你有不应该被 react 处理的路由，你的注解可以像下面这样排除它们 - 所有以 api 开头的路由都不会被 react 处理:

If you have routes that shouldn't be handled by react, your annotation could exclude them like as follows - all routes that start with api will not be handled by react:

@Route("/{reactRouting}", name="index", requirements={"reactRouting"="^(?!api).+"}, defaults={"reactRouting": null})

Twig 模板，带有根元素:

Twig Template, with root element:

{% extends 'base.html.twig' %}

{% block stylesheets %}
<link rel="stylesheet" href="{{ asset('build/js/app.css') }}">
{% endblock %}

{% block body %}
    <div id="root"><div>
{% endblock %}

{% block javascripts %}
<script type="text/javascript" src="{{ asset('build/js/app.js') }}"></script>
{% endblock %}

反应索引文件:

import React from 'react';
import ReactDOM from 'react-dom';
import {BrowserRouter, Route, Switch} from 'react-router-dom';

import Home from "./containers/Home";
import AboutUs from "./containers/AboutUs";


ReactDOM.render(
       <BrowserRouter>
            <Switch>
                <Route path="/" component={Home}/>
                <Route path="/about-us" component={AboutUs}/>
            </Switch>
        </BrowserRouter>,
    document.getElementById('root'));

还有我的 Encore 配置:

And my encore config:

var Encore = require('@symfony/webpack-encore');

Encore
    // the project directory where compiled assets will be stored
    .setOutputPath('public/build/')
    // the public path used by the web server to access the previous directory
    .setPublicPath('/build')
    .cleanupOutputBeforeBuild()
    .enableSourceMaps(!Encore.isProduction())
    // uncomment to create hashed filenames (e.g. app.abc123.css)
    // .enableVersioning(Encore.isProduction())

    // uncomment to define the assets of the project
    // .addEntry('js/app', './assets/js/app.js')
    // .addStyleEntry('css/app', './assets/css/app.scss')

    // uncomment if you use Sass/SCSS files
    // .enableSassLoader()

    // uncomment for legacy applications that require $/jQuery as a global variable
    // .autoProvidejQuery()

    .enableReactPreset()
    .addEntry('js/app', './react/index.js')
    .configureBabel((config) => {
        config.presets.push('stage-1');
    })
;

module.exports = Encore.getWebpackConfig();

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