我为nodejs应用程序编写了两个Javascript文件,其中使用express进行路由和创建服务器。由于我是初学者,所以不太了解它。 当我运行应用程序时,它显示以下错误:-
/usr/lib/node_modules/express/lib/router/index.js:472
this.stack.push(layer);
^
TypeError: Cannot read property 'push' of undefined
at Function.use (/usr/lib/node_modules/express/lib/router/index.js:472:15)
at Object.<anonymous> (/home/dhiresh/Coding/angularjsapp/api.js:9:3)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)
at Object.<anonymous> (/home/dhiresh/Coding/angularjsapp/index.js:2:7)
index.js文件如下:
var express = require('express'),
api = require('./api'),
app=express();
app
.use(express.static('./public'))
.use('/api',api)
.get('*',function (req,res) {
res.sendfile('public/index.html');
}).listen(3000);
api.js 文件如下:
var express = require('express'),
bourne = require('bourne'),
bodyParser= require('body-parser'),
db = new bourne('data.json'),
router =express.Router();
router
.use(function(req,res,next){
if(!req.user) req.user={ id:1 };
next();
})
.use(bodyParser.json())
.route('/contact')
.get(function(req,res){
db.find({userId : parseInt(req.user.id,10)},function(err,data){
res.json(data);
});
})
.post(function(req,res){
var contact = req.body;
contact.userId = req.user.id;
db.insert(contact,function(err,data){
res.json(data);
});
});
router
.param('id',function(req,res,next){
req.dbQuery = { id:parseInt(req.params.id,10) }
})
.route('/contact/:id')
.get(function(req,res){
db.findOne(req.dbQuery,function(err,data){
res.json(data);
});
})
.put(function(req,res){
var contact = req.body;
delete contact.$promise;
delete contact.$resolve;
db.update(req.dbQuery,function(err,data){
res.json(data[0]);
})
})
.delete(function(req,res){
db.delete(req.dbQuery,function(err,data){
res.json(null);
})
});
module.exports = router;
有人能告诉我这个问题的答案吗?