我将一个React + Node + Express
应用程序上传到了Heroku。该应用程序在本地运行,但部署后显示为空白屏幕。控制台日志未显示任何错误。
这里的新手,请多多包涵。
我怀疑在server.js中,我错了:
if (process.env.NODE_ENV === 'production') {
// Serve any static files
app.use('client/public', express.static(path.join(__dirname, '/')));
// Handle React routing, return all requests to React app
app.get('*', function(req, res) {
res.sendFile(path.join(__dirname, 'client/public', 'index.html'));
});
}
我们的文件夹结构有点奇怪(我们一直在研究不同的教程)。 /client/public/index.html
具有/client/src/index.js
渲染到的div。 App.js
保存路线。我想知道res.sendFile
是否应该实际发送“ index.js”而不是“ index.html”?我也尝试过,但是页面仍然空白。
由于我不确定我知道我要去哪里错了,所以任何其他指针将不胜感激。
谢谢!
可以在https://github.com/windwardpassage/ubcplanner上找到项目代码
Heroku:https://ubcplanner4.herokuapp.com/
文件夹结构
/
--- server.js
--- package.json
/客户
--- App.js
--- App.css
--- index.js
--- public /
------ index.html
--- src /
------组件,商店,图像等的文件夹
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="theme-color" content="#000000">
<title>React App</title>
</head>
<body>
<noscript>
You need to enable JavaScript to run this app.
</noscript>
<div id="root"></div>
</body>
</html>
App.js
class App extends Component {
render() {
return (
<div className="App">
<MainHeader />
<div className="ui-container">
<Route path="/" exact component={ IndexPage } />
<Route path="/signup" exact component={ SignupPage } />
<Route path="/forgotpassword" exact component={ ForgotPasswordPage } />
</div>
</div>
);
}
}
export default App;
index.js
const store = createStore(
rootReducer,
composeWithDevTools(applyMiddleware(thunk))
);
ReactDOM.render(
<BrowserRouter>
<Provider store={store}>
<App />
</Provider>
</BrowserRouter>,
document.getElementById("root")
);
registerServiceWorker();
server.js
const express = require('express');
const path = require('path');
const bodyParser = require('body-parser');
const passport = require('passport');
const config = require('./config');
var cors = require('cors');
const port = process.env.PORT || 5000;
// connect to the database and load models
require('./server/models').connect(config.dbUri);
const app = express();
if (process.env.NODE_ENV === 'production') {
// Serve any static files
app.use('client/public', express.static(path.join(__dirname, '/')));
// Handle React routing, return all requests to React app
app.get('*', function(req, res) {
res.sendFile(path.join(__dirname, 'client/public', 'index.html'));
});
}
// tell the app to look for static files in these directories
//app.use(express.static('./server/static/'));
app.use(express.static('./client/dist/'));
// routes
const authRoutes = require('./server/routes/auth');
const apiRoutes = require('./server/routes/api');
app.use('/auth', authRoutes);
app.use('/api', apiRoutes);
app.use(cors());
// start the server
app.listen(port, () => console.log(`Listening on port ${port}`));
答案 0 :(得分:0)
您可能已经忽略了public
文件中的.gitignore
目录。
这最近发生在我身上,我设法解决了这一问题,从public
删除了.gitignore
目录。