![](/img/trans.png)
[英]I am not able to uninstall nodejs. After I got the error module not found “node-uuid”
[英]I am not able insert data in mongodb by nodejs. Please find below the logs of the error
我无法连接到mongodb并将数据插入数据库。 请在下面找到代码。我在日志中收到以下错误:: EventEmitter上的详细堆栈。(/ usr / local / lib / node_modules / npm / node_modules / npm lifecycle / index.js:280:16) events.js:125:13)EventEmitter.emit上的详细堆栈(events.js:213:7)ChildProcess.node上的详细堆栈./bin/www错误退出状态1错误在firstexpressproject@0.0.0启动脚本处失败。 错误这可能不是npm的问题。 上面可能还有其他日志记录输出。 详细出口[1,正确]
这是代码:
var express = require('express');
var mongo=require('mongodb').MongoClient;
var assert=require('assert');
var router = express.Router();
var url='mongodb://127.0.0.1:27017/test';
/* GET home page. */
router.get('/', function(req, res, next) {
res.render('index');
});
router.post('/submit',function(req,res,next){
req.check('email','Invalid email Address').isEmail();
req.check('password','Password is
invalid').isLength({min:4}).equals(req.body.confirmPassword);
var errors=req.validationErrors();
if(errors)
{
req.session.errors=errors;
req.session.success=false;
}
else
{
req.session.success=true;
}
res.redirect('/');
});
router.post('/insert',function(req,res,next)
{
//res.redirect('index');
var item = {
title:req.body.title,
content:req.body.content,
author:req.body.author
};
mongo.connect(url,function(error,db)
{
assert.equal(null,err);
db.collection('user-data').insertOne(item,function(err,result){
assert.equal(null,err);
console.log('Data inserted successfully');
db.close();
});
});
res.redirect('/');
});
router.get('/get-data',function(req,res,next)
{
var resultArray=[];
mongo.connect(url,function(err,db)
{
assert.equal(null,err);
var cursor=db.collection('user-data').find();
cursor.forEach(function(doc,err)
{
assert.equal(null,err);
resultArray.push(doc);
},function()
{
db.close();
res.render('index',{items:resultArray});
});
});
});
module.exports = router;
我认为您没有键入参数名称:
router.post('/insert',function(req,res,next)
{
//res.redirect('index');
var item = {
title:req.body.title,
content:req.body.content,
author:req.body.author
};
mongo.connect(url,function(error,db)
{
assert.equal(null,err);
db.collection('user-data').insertOne(item,function(err,result){
assert.equal(null,err);
console.log('Data inserted successfully');
db.close();
});
});
res.redirect('/');
});
您要声明“ err”为空,但范围内没有“ err”,您应该:
router.post('/insert',function(req,res,next)
{
//res.redirect('index');
var item = {
title:req.body.title,
content:req.body.content,
author:req.body.author
};
mongo.connect(url,function(error,db)
{
assert.equal(null,error); // fixed here
db.collection('user-data').insertOne(item,function(err,result){
assert.equal(null,err);
console.log('Data inserted successfully');
db.close();
});
});
res.redirect('/');
});
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.