我正在学习Node、Express、Jade和Mongodb。我无法在Jade中显示我的mongodb文档。我自己无法解决这个问题。我已经成功地使用console.log记录了所有文档，并且它正确地显示了所有文档。请不要使用mongoose或其他解决方案，只需告诉我如何在这段代码的基础上构建。我已经连接到了数据库，在终端中显示了所有文档。如何能够将其传递给Jade并在view.jade中显示它？
谢谢。
以下是我的app.js代码：
这是我的index.js。
以下是我的app.js代码：
var express = require('express');
var app = express();
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
// Mongodb Example http://www.guru99.com/node-js-mongodb.html
var MongoClient = require('mongodb').MongoClient
var url = 'mongodb://localhost/EmployeeDB';
MongoClient.connect(url, function(err, db) {
//Insert data into mongodb db. If the collection doesn't exist, it will be created with the first inserted document
db.collection('employee').insertOne({
number : 17,
name: "aaa"
});
//Updating Documents in a collection
db.collection('employee').updateOne(
{"name": "New Employee"}, {$set: {"name": "AA"}}
);
//Deleting Documents in a collection
db.collection('employee').deleteOne(
{ "name": "name" }
);
// no need to pass a second parameter. Just the name of the field to be deleted.
//Querying for data in mongodb db .
var cursor = db.collection('employee').find();
cursor.each(function (err, doc) {
//console.log(doc)
});
console.log("connected");
db.close();
});
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(__dirname + '/public/favicon.ico'));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(require('stylus').middleware(path.join(__dirname, 'public')));
app.use(express.static(path.join(__dirname, 'public')));
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: {}
});
});
module.exports = app;
这是我的index.js。
var express = require('express');
var router = express.Router()
//the global str variable is accessable from anywhere and logging the db.collection but how I pass it to jade?
var str = "";
/* GET home page. and iterate, display the collection to console log. */
router.get('/', function (req, res) {
var MongoClient = require('mongodb').MongoClient
var url = 'mongodb://localhost/EmployeeDB';
MongoClient.connect(url, function (err, db) {
var str = db.collection('employee').find();
str.each(function (err, doc) {
console.log(doc);
});
//How to pass the .db.collection documents to Jade?
res.render('index');
});
});
这是我的index.jade文件
extends layout
block content
h1= title
mongod，以便你有一个要连接的数据库进程？这是 MongoDB 工作所必需的。 - sovares.render('index', {"results" : mongo_results } )向view.jade文件发送JSON格式的数据包。请查看更新后的答案以获取详细信息。 - sova