我有一个应用程序,在其中配置了服务器端渲染。一切都很顺利,我的组件在服务器端呈现。问题是我在屏幕上看到了两次呈现的组件。一个来自于我用于服务器渲染的
<div id="content"><%- content %></div>
,另一个来自于 <script src="http://localhost:3001/bundle.js"></script>
。我使用webpack为我的服务器和客户端制作了两个包。这是怎么回事,我该如何解决?
views/index.ejs
<body>
<div id="app"></div>
<div id="content"><%- content %></div>
<script src="http://localhost:3001/bundle.js"></script>
</body>
index.js
app.use(Express.static(path.join(__dirname, '../', 'dist')))
app.use(serverRenderer)
app.get('*', (req: Object, res: Object) => {
res.render('index', {content: req.body})
})
服务器端渲染
import React from 'react'
import ReactDOM from 'react-dom/server'
import { match, RouterContext } from 'react-router'
import routes from '../client/routes.js'
async function render (component) {
const content = ReactDOM.renderToString(component)
return content
}
async function getMatchParams (routes, currentUrl) {
return new Promise((resolve, reject) => {
match({routes: routes, location: currentUrl}, (err, redirect, props) => {
if (err) {
return reject(err)
}
return resolve(props)
})
})
}
export default async(req, res, next) => {
const renderProps = await getMatchParams(routes, req.url)
if (renderProps) {
const component = (
<RouterContext {...renderProps} />
)
req.body = await render(component)
next()
}
}