Nodejs use case-mysql action

1, Package.json:

{"  scripts": {    "start": "Node App.js"  },  "Devdependencies": {    "Body-parser": "^1.17.1",    " Ejs ":" ^2.5.6 ",    " Express ":" ^4.15.2 ",    " express-session ":" ^1.15.1 ",    " MySQL ":" ^2.13.0 ",    " session ": "^0.1.0"  }}

2, Db.js:

var mysql = require (' mysql ');//import MySQL module var db=mysql.createconnection ({//Connect MySQL database host: ' localhost ', User: ' Root ', Password: ' 123456 ', Database: ' Test ',  //DB name port:3306});d B.connect (Err) =>{if (err) {Console.log (' Connect Fail ')}else{console.log (' Connect suc ')}); module.exports=db;

3, App.js:

var express = require (' Express '), var app = Express (), var = require ('./modle.js '); var bodyparser = require (' Body-parse R '), var session = require (' express-session ') App.use (session ({secret: ' Shixinke ', resave:true,saveuninitialized: False,cookie: {Secure:false}}); This part of the code allows you to use Sessionapp.engine ('. html ', require (' Ejs '), __express), App.set (' View engine ', ' HTML '), App.set (' views '), __dirname + '/views ');  Template engine enabled App.use (Bodyparser.json ()); App.use (bodyparser.urlencoded ()); This section allows you to use the Receive post data app.get ('/', function (req, res, next) {///route, and then call the corresponding Modle.js method Gets.showarticlehome (req, res, Next)}) App.get ('/login ', function (req, res, next) {Res.render (' login ');}) App.get ('/outlogin ', function (req, res, next) {req.session.sign = False;res.redirect ('/');}) App.post ('/loginif ', function (req, res, next) {gets.loginif (req, res, next);}) App.set (' Trust proxy ', 1)//Trust First Proxyapp.get ('/list ', function (req, res, next) {if (req.session.sign) {Gets.showa Rticle (req, res, next)} else {res.send (' DoN,t has login ')}) app.get ('/article/:id ', function (req, res, next) {Gets.showarticleinfo (req, res, next)}) App.get ('/ Write ', function (req, res, next) {Gets.subform (req, res, next)}) app.post ('/subform ', function (req, res, next) { Gets.savearticle (req, res, next);}) App.get ('/delete/:id ', function (req, res, next) {gets.deletearticle (req, res, next);}) App.get ('/edit/:id ', function (req, res, next) {if (req.session.sign) {gets.editarticle (req, res, next);} Else{res.send (' You don,t has login in ')}) app.post ('/update ', function (req, res, next) {gets.updatearticle (req, res, Next);}) App.listen (8000)

4, Modle.js:

var db = require ('./db.js '); var gets = {};gets.loginif= (req,res,next) =>{var Userinfo=req.body.userinfo;console.log (UserInfo, ' sdflksjfd ') var qry= "SELECT COUNT (*) as num from admin where user= '" +userinfo.user+ "' and password= '" +userinfo . psd+ "'";d b.query (qry,function (Err,result) {if (err) {console.log (' err '); return;} if (result[0].num>=1) {req.session.sign = true;} Res.send (Result)})}gets.findall = (req, res, next) = {var qry = ' select * from user '; var qry2 = "Select * FROM User_ne XT ";d b.query (qry, function (err, result) {if (err) {console.log (' err '); return;} Db.query (Qry2, function (err, RESULT2) {res.render (' home ', {data:result,data2:result2,title: ' Home ')})});}  Gets.subform = (req, res, next) = {Res.render (' write ', {})}gets.showarticle = (req, res, next) = {db.query (' Select * from article ', function (err, result) {if (err) {Console.log (' not get article ') return;} Res.render (' list ', {Data:result})})}gets.showarticlehome = (req, res, next) = = {Db.query (' select * from article '), function (err, result) {if (err) {Console.log (' not get article ') return;} Res.render (' home ', {Data:result})})}gets.showarticleinfo = (req, res, next) = {var id = req.params.id;db.query ("Sele CT * from article where id= "+ ID +", function (err, result) {if (err) {Console.log (' not get article ') return; Res.render (' info ', {data:result})})}gets.savearticle = (req, res, next) = = {var Formdata = Req.body.formdata;console. Log (typeof (Formdata.tit)); var str = FORMDATA.CON;STR = str.replace (/\ "/g," "); str = str.replace (/"/g, "'"); str = STR.REPL Ace (/&/g, ""); str = str.replace (/lt;/g, "<"); str = str.replace (/gt;/g, ">"); str = str.replace (/\&/g, "");  str = str.replace (/\n/g, "<br>"), var qry = "INSERT into article (title,content) VALUES ('" + Formdata.tit + "', '" + str + "')";d b.query (qry, function (err, result) {if (err) {console.log (' err ') return;} Res.send ({state:true})})}gets.updatearticle = (req, res, next) = = {var Formdata = Req.body.formdata;var str = formdata . constr = str.replace (/\ "/g," "); str = str.replace (/"/g, "'"); str = str.replace (/&/g, ""); str = str.replace (/lt;/g, "&lt ;"); str = str.replace (/gt;/g, ">"); str = str.replace (/\&/g, ""); str = str.replace (/\n/g, "<br>"); var qry = "Updat E article set title= ' "+formdata.tit+" ', content= ' "+str+" ' Where id= ' "+req.body.id+" ' ";d b.query (qry, function (err, Result) {if (err) {console.log (' err ') return;} Res.send ({state:true})})}gets.deletearticle = (req, res, next) = = {var Delid=req.params.id;var qry= "Delete from Artic Le where id= "+delid+" ";d b.query (qry, function (err, result) {if (err) {console.log (' err ') return;} Res.redirect ('/list ')})}gets.editarticle = (req, res, next) = = {var editid=req.params.id;console.log (Editid, ' DKSFDKSFJ ') var qry= "select * from article where id=" +editid+ "";d b.query (qry, function (err, result) {if (err) {Console.log (' err ') return; Res.render (' edit ', {Data:result})})}module.exports = gets;

5, home.html:

<! DOCTYPE html>
6, Login.html:
<! DOCTYPE html>
　　
Nodejs use case-mysql action