Javascript 需要表达的东西
我不熟悉node.js和express,我想知道我是否需要app.js中的某些内容,我还需要在index.js和user.js等单独的路由文件中需要它吗express项目的示例结构:Javascript 需要表达的东西,javascript,node.js,express,backend,express-generator,Javascript,Node.js,Express,Backend,Express Generator,我不熟悉node.js和express,我想知道我是否需要app.js中的某些内容,我还需要在index.js和user.js等单独的路由文件中需要它吗express项目的示例结构: /example app.js /bin www package.json /node_modules [about 4,500 subdirectories and files] /public /images /j
/example
app.js
/bin
www
package.json
/node_modules
[about 4,500 subdirectories and files]
/public
/images
/javascripts
/stylesheets
style.css
/routes
index.js
users.js
/views
error.pug
index.pug
layout.pug
/app.js:
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var logger = require('morgan');
var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'pug');
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', indexRouter);
app.use('/users', usersRouter);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
next(createError(404));
});
// error handler
app.use(function(err, req, res, next) {
// set locals, only providing error in development
res.locals.message = err.message;
res.locals.error = req.app.get('env') === 'development' ? err : {};
// render the error page
res.status(err.status || 500);
res.render('error');
});
module.exports = app;
/routes/index.js:
var express = require('express');
var router = express.Router();
/* GET home page. */
router.get('/', function(req, res, next) {
res.render('index', { title: 'Express' });
});
module.exports = router;
/routes/user.js:
var express = require('express');
var router = express.Router();
/* GET users listing. */
router.get('/', function(req, res, next) {
res.send('respond with a resource');
});
module.exports = router;
一旦通过这里了解项目结构:当您尝试它时发生了什么?