[英]Why is app.use() not serving up the 'public' directory when I save even though the path is appears to be correct?
我正在关注 node 和 express 上的一个稍微过时的教程，我的代码与教程相同，但 app.use 没有按照我的意愿提供公共目录。 当我转到根 localhost:3000 时，我仍然在第 19 行的标签中看到Weather 。当我删除它时，我什么也看不到，包括公共目录的 index.html 文件。
这是我的 index.html 文件：
<!DOCTYPE html> <html lang="en"> <head> <!-- <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> --> <title>Document</title> </head> <body> <h1>From a static file.</h1> </body> </html>
这是我的 app.js 脚本：
/* nodejs script that will create, configure, and start the server. run script: node src/app.js keep server running: nodemon src/app.js */ const path = require('path'); const express = require('express'); const app = express(); const publicDirectoryPath = path.join(__dirname, '../public'); // abs path to serve // STACKOVERFLOW - WHY ISN'T THIS SERVING UP PUBLIC DIRECTORY? app.use(express.static(publicDirectoryPath)); // serve 'public' directory // create root route app.get('/', (req, res) => { res.send('<h1>Weather</h1>'); }); // create a help route app.get('/help', (req, res) => { res.send([ {name: 'Barack H. Obama'}, {name: 'George W. Bush'}, {name: 'William J. Clinton'} ]); }); // create an about route app.get('/about', (req, res) => { res.send('<h1>About</h1>'); }); // create a weather route app.get('/weather', (req, res) => { res.send({ forecast: 'rain', location: 'Los Angeles' }); }); // port 3000 is common development port, starts server app.listen(3000, () => { console.log('Server is up on port 3000'); // never displays in browser });
它应该是public而不是..public这样的const publicDirectoryPath = path.join(__dirname, 'public')
由于app.js和public在同一级别共享相同的父目录。 所以..public将指出src之外的 dir public不可用。
即使我遵循了文档，获取 app.use 也需要中间件
[英]Getting app.use require middleware even though I followed the documentation
如果我做 app.use(express.static(path.join(__dirname, 'public'))); 它总是在 public 中打开 index.html 文件。
[英]if i do app.use(express.static(path.join(__dirname, 'public'))); it always opens index.html file in public .
为什么在使用app.use（express.static（path.join（...）））之前无法启动Express Middleware？
[英]Why does Express Middleware not fire when preceded by app.use(express.static(path.join(…)));
app.use(express.static(path.join(__dirname, 'public'))); ReferenceError：未定义路径是什么问题？
[英]app.use(express.static(path.join(__dirname, 'public'))); ReferenceError: path is not defined what is issue?
使用 app.use(express.static('public')) 时如何测试 Express 应用程序；
[英]How to test an Express application when using app.use(express.static('public'));
使用 app.use(express.static(__dirname, 'public')); 上传后我无法访问图像
[英]I can't access image after upload with used app.use(express.static(__dirname, 'public'));
app.use（路径，路由器）匹配，但是如何提取路径中的命名参数
[英]app.use(path, router) matches but how do I extract named parameters in path
声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.