Javascript Can';t显示来自Mongo数据库的数据
我将遵循本教程: 当我在mongo终端中执行Javascript Can';t显示来自Mongo数据库的数据,javascript,node.js,mongodb,server,pug,Javascript,Node.js,Mongodb,Server,Pug,我将遵循本教程: 当我在mongo终端中执行db.usercollection.find().pretty()操作时,我的记录会打印出来,所以我知道我有记录要显示 当我做http://localhost:3000/userlist在我的浏览器中,我在顶部看到“用户列表”字样,但我没有看到任何用户数据 应该是这样的 问题:我的userlist.jade文件中的链接是否没有指向数据库数据?? userlist.jade index.js app.js 我遇到了同样的错误,然后我修复了问题: app.
db.usercollection.find().pretty()
操作时,我的记录会打印出来,所以我知道我有记录要显示
当我做http://localhost:3000/userlist
在我的浏览器中,我在顶部看到“用户列表”字样,但我没有看到任何用户数据
应该是这样的
问题:我的userlist.jade文件中的链接是否没有指向数据库数据??
userlist.jade
index.js
app.js
我遇到了同样的错误,然后我修复了问题: app.js var db=monk('localhost:27017/nodetest1') 将localhost更改为127.0.0.1
并确保集合名称为nodetest1我无法复制此内容。它适用于我的
路由器。get('/userlist…
在集合中。find
的回调尝试在res.render之前添加console.log(e,docs);
以查看是否返回了任何文档或是否有任何错误。@Molda我仍然没有得到任何东西,除了“User List”这个词在顶部。没有显示数据库数据。@hagan10你按照我的建议做了吗?如果是,输出是什么?
extends layout
block content
h1.
User List
ul
each user, i in userlist
li
a(href="mailto:#{user.email}")= user.username
var express = require('express');
var router = express.Router();
/* GET home page. */
router.get('/', function(req, res, next) {
res.render('index', { title: 'Express' });
});
/* GET Userlist page. */
router.get('/userlist', function(req, res) {
var db = req.db;
var collection = db.get('usercollection');
collection.find({},{},function(e,docs){
res.render('userlist', {
"userlist" : docs
});
});
});
module.exports = router;
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');
// new code
// we want to talk to mongodb, use monk to do it, databasebase is lcoated at localhost:27017/nodetest1
var mongo = require('mongodb');
var monk = require('monk');
var db = monk('localhost:27017/nodetest1');
var routes = 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')));
// Make our db accessible to our router - new code
app.use(function(req,res,next){
req.db = db;
next();
});
// telling Express what route files to use
app.use('/', routes);
app.use('/users', 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 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: {}
});
});
// our master app exporting its app object. All modules export an object whch can easily be called elsewhere in code.
module.exports = app;