尝试使用Express应用程序生成器向此Express应用程序添加新路由。以下是app.js文件:
var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var routes = require('./routes/index');
var users = require('./routes/users');
var parse = require('./routes/parse');
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', routes);
app.use('/users', users);
app.use('/parse', parse);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('Not Found - from app.js');
err.status = 404;
next(err);
});
// error handlers
// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: err
});
});
}
// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: {}
});
});
module.exports = app;
我添加的行是: 我添加的行是:
var parse = require('./routes/parse');
app.use('/parse', parse);
然后在/routes目录中我添加了一个名为parse.js的文件,其内容为:
var express = require('express');
var router = express.Router();
router.get('/parse', function(req, res, next) {
res.send('return from parse.js');
});
module.exports = router;
我可以使用浏览器访问 / 和 /users 资源,并获得预期结果。但是当我尝试访问 /parse 时,出现了如下404错误:
未找到 - 来自 app.js
404
Error: Not Found - from app.js
at /home/bitnami/parsecsvapi/app.js:32:13
at Layer.handle [as handle_request] (/home/bitnami/parsecsvapi/node_modules/express/lib/router/layer.js:95:5)
at trim_prefix (/home/bitnami/parsecsvapi/node_modules/express/lib/router/index.js:312:13)
at /home/bitnami/parsecsvapi/node_modules/express/lib/router/index.js:280:7
at Function.process_params (/home/bitnami/parsecsvapi/node_modules/express/lib/router/index.js:330:12)
at next (/home/bitnami/parsecsvapi/node_modules/express/lib/router/index.js:271:10)
at /home/bitnami/parsecsvapi/node_modules/express/lib/router/index.js:618:15
at next (/home/bitnami/parsecsvapi/node_modules/express/lib/router/index.js:256:14)
at Function.handle (/home/bitnami/parsecsvapi/node_modules/express/lib/router/index.js:176:3)
at router (/home/bitnami/parsecsvapi/node_modules/express/lib/router/index.js:46:12)