我是用手机输入的,所以我为缺乏格式表示歉意。
对于我的项目,我正在做与您类似的事情;我有一个静态的 fetchData 方法,我遍历来自 renderProps 的组件,然后调用静态方法并等待承诺解决。
然后,我从我的 redux 存储中调用 get state,对其进行字符串化,并将其传递给服务器上的渲染函数,以便它可以在客户端渲染出初始状态对象。
从客户端,我只需获取初始状态变量并将其传递给我的 redux 存储。然后 Redux 将处理让您的客户端存储与服务器上的存储相匹配。从那里,您只需将商店传递给提供商并照常进行。您根本不需要在客户端上调用您的静态方法。
有关我所说的示例,您可以查看我的 github 项目,因为代码会自行解释。https://github.com/mr-antivirus/riur
希望有帮助!
[编辑] 这是代码!
客户端.js
'use strict'
import React from 'react';
import { render } from 'react-dom';
import { Provider } from 'react-redux';
import { Router, browserHistory } from 'react-router';
import createStore from '../shared/store/createStore';
import routes from '../shared/routes';
const store = createStore(window.__app_data);
const history = browserHistory;
render (
<Provider store={store}>
<Router history={history} routes={routes} />
</Provider>,
document.getElementById('content')
)
服务器.js
app.use((req, res, next) => {
match({ routes, location:req.url }, (err, redirectLocation, renderProps) => {
if (err) {
return res.status(500).send(err);
}
if (redirectLocation) {
return res.redirect(302, redirectLocation.pathname + redirectLocation.search);
}
if (!renderProps) {
return next();
}
// Create the redux store.
const store = createStore();
// Retrieve the promises from React Router components that have a fetchData method.
// We use this data to populate our store for server side rendering.
const fetchedData = renderProps.components
.filter(component => component.fetchData)
.map(component => component.fetchData(store, renderProps.params));
// Wait until ALL promises are successful before rendering.
Promise.all(fetchedData)
.then(() => {
const asset = {
javascript: {
main: '/js/bundle.js'
}
};
const appContent = renderToString(
<Provider store={store}>
<RouterContext {...renderProps} />
</Provider>
)
const isProd = process.env.NODE_ENV !== 'production' ? false : true;
res.send('<!doctype html>' + renderToStaticMarkup(<Html assets={asset} content={appContent} store={store} isProd={isProd} />));
})
.catch((err) => {
// TODO: Perform better error logging.
console.log(err);
});
});
});
RedditContainer.js
class Reddit extends Component {
// Used by the server, ONLY, to fetch data
static fetchData(store) {
const { selectedSubreddit } = store.getState();
return store.dispatch(fetchPosts(selectedSubreddit));
}
// This will be called once on the client
componentDidMount() {
const { dispatch, selectedSubreddit } = this.props;
dispatch(fetchPostsIfNeeded(selectedSubreddit));
}
... Other methods
};
HTML.js
'use strict';
import React, { Component, PropTypes } from 'react';
import ReactDom from 'react-dom';
import Helmet from 'react-helmet';
import serialize from 'serialize-javascript';
export default class Layout extends Component {
static propTypes = {
assets: PropTypes.object,
content: PropTypes.string,
store: PropTypes.object,
isProd: PropTypes.bool
}
render () {
const { assets, content, store, isProd } = this.props;
const head = Helmet.rewind();
const attrs = head.htmlAttributes.toComponent();
return (
<html {...attrs}>
<head>
{head.base.toComponent()}
{head.title.toComponent()}
{head.meta.toComponent()}
{head.link.toComponent()}
{head.script.toComponent()}
<link rel='shortcut icon' href='/favicon.ico' />
<meta name='viewport' content='width=device-width, initial-scale=1' />
</head>
<body>
<div id='content' dangerouslySetInnerHTML={{__html: content}} />
<script dangerouslySetInnerHTML={{__html: `window.__app_data=${serialize(store.getState())}; window.__isProduction=${isProd}`}} charSet='utf-8' />
<script src={assets.javascript.main} charSet='utf-8' />
</body>
</html>
);
}
};
重申...
- 在客户端,获取状态变量并将其传递给您的商店。
- 在服务器上,循环调用 fetchData 并传递您的商店的组件。等待 promise 被解决,然后渲染。
- 在 HTML.js(您的 renderView 函数)中,序列化您的 Redux 存储并将输出呈现给客户端的 javascript 变量。
- 在你的 React 组件中,创建一个静态fetchData方法,只供服务器调用。调度您需要的操作。