安装mysql模块
npm install mysql
数据库准备
mysql server所在的机器IP地址是192.168.0.108，登录账户就用root@123456
在mysql中创建test数据库
在test数据库中创建一张users表
操作
连接数据库
var mysql=require('mysql');var connection = mysql.createConnection({host : '192.168.0.108',user : 'root',password : '123456',database : 'test1',port:'3306'});connection.connect();插入一个user
var usr={name:'zhangsan',password:'pwdzhangsan',mail:该邮件地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。'};connection.query('insert into users set ?', usr, function(err, result) {if (err) throw err;console.log('inserted zhangsan');console.log(result);console.log('\n');});更新user，带条件
connection.query('update users set password="ddd" where name="zhangsan"', {password:'ppp'}, function(err, result) {if (err) throw err;console.log('updated zhangsan\'s password to ddd');console.log(result);console.log('\n');}); 删除一个user，带条件
connection.query('delete from users where name="zhangsan"', {password:'ppp'}, function(err, result) {if (err) throw err;console.log('deleted zhangsan');console.log(result);console.log('\n');});查询user，所有
connection.query('select * from users', function(err, rows, fields) {if (err) throw err;console.log('selected after deleted');for(var i= 0,usr;usr=rows[i++];){console.log('user nae='+usr.name + ', password='+usr.password);}console.log('\n');}); 关闭数据库连接
connection.end();
基本的CRUD完成
mysql模块的完整功能说明参见官方：
https://www.npmjs.com/package/mysql
https://github.com/felixge/node-mysql
全部demo代码
var mysql=require('mysql');var connection = mysql.createConnection({host : '192.168.0.108',user : 'root',password : '123456',database : 'test1',port:'3306'});connection.connect();var usr={name:'zhangsan',password:'pwdzhangsan',mail:该邮件地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。'};connection.query('insert into users set ?', usr, function(err, result) {if (err) throw err;console.log('inserted zhangsan');console.log(result);console.log('\n');});connection.query('select * from users', function(err, rows, fields) {if (err) throw err;console.log('selected after inserted');for(var i= 0,usr;usr=rows[i++];){console.log('user nae='+usr.name + ', password='+usr.password);}console.log('\n');});connection.query('update users set password="ddd" where name="zhangsan"', {password:'ppp'}, function(err, result) {if (err) throw err;console.log('updated zhangsan\'s password to ddd');console.log(result);console.log('\n');});connection.query('select * from users', function(err, rows, fields) {if (err) throw err;console.log('selected after updated');for(var i= 0,usr;usr=rows[i++];){console.log('user nae='+usr.name + ', password='+usr.password);}console.log('\n');});connection.query('delete from users where name="zhangsan"', {password:'ppp'}, function(err, result) {if (err) throw err;console.log('deleted zhangsan');console.log(result);console.log('\n');});connection.query('select * from users', function(err, rows, fields) {if (err) throw err;console.log('selected after deleted');for(var i= 0,usr;usr=rows[i++];){console.log('user nae='+usr.name + ', password='+usr.password);}console.log('\n');});connection.end();