节点找不到模块 - Express.js

时间:2017-07-10 12:19:11

标签: javascript node.js express

我有ASP.NET背景。我试图在ASP.NET中使用MVC逻辑来理解Node.js的“路由”逻辑。例如在我的global.js中,有一个对/ users / userlist的AJAX调用(我不知道它是什么,它是MVC中的控制器)。我正试图使用​​下面的代码到达那个控制器,但我明白了:

  

获取http://localhost:3000/users/userlist 404(未找到)

我该怎么做才能摆脱这个?感谢。

这是app.js(完整):

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 mongo = require('mongodb');
var monk = require('monk');
var db = monk('localhost:27017/nodetest2');

var index = require('./routes/index');
var users = require('./routes/users');

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(function(req,res,next){
    req.db = db;
    next();
});


app.use('/', index);
app.use('/userlist', users);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// 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;

这是users.js(完整):

var express = require('express');
var router = express.Router();

/*
 * GET userlist.
 */
router.get('/userlist', function(req, res) {
    var db = req.db;
    var collection = db.get('userlist');
    collection.find({},{},function(e,docs){
        res.json(docs);
    });
});

module.exports = router;

这是global.js:

$.getJSON( '/users/userlist', function( data ) {

    // For each item in our JSON, add a table row and cells to the content string
    $.each(data, function(){
        tableContent += '<tr>';
        tableContent += '<td><a href="#" class="linkshowuser" rel="' + this.username + '">' + this.username + '</a></td>';
        tableContent += '</tr>';
    });

    // Inject the whole content string into our existing HTML table
    $('#userList table tbody').html(tableContent);
});

这是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;

当我运行此代码时,我得到了这个:

  

获取http://localhost:3000/users/userlist 404(未找到)

1 个答案:

答案 0 :(得分:0)

将所有代码i app.js

包含在以下行中
var express = require('express');
var app = express();
// other code below