一，创建数据库

Source Database       : my_news_test
SET FOREIGN_KEY_CHECKS=0;-- ----------------------------
-- Table structure for node_user
-- ----------------------------
DROP TABLE IF EXISTS `node_user`;
CREATE TABLE `node_user` (`id` int(11) NOT NULL AUTO_INCREMENT,`name` varchar(30) DEFAULT NULL,`age` int(8) DEFAULT NULL,PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=utf8;-- ----------------------------
-- Records of node_user
-- ----------------------------
INSERT INTO `node_user` VALUES ('1', 'admin', '32');
INSERT INTO `node_user` VALUES ('2', 'dans88', '45');
INSERT INTO `node_user` VALUES ('3', '张三', '35');
INSERT INTO `node_user` VALUES ('4', 'ABCDEF', '88');
INSERT INTO `node_user` VALUES ('5', '李小二', '65');

二，连接

var connection = mysql.createConnection({host     : '127.0.0.1',user     : 'root',password : 'root123',port: '3306',database: 'my_news_test',
});

三，简单查询

注意要记得安装node_mysql,直接使用npm install mysql

//mysql.js
//首先需要安装nodejs 的mysql包
//npm install mysql
//编写nodejs与mysql交互的代码var mysql = require('mysql');
var TEST_DATABASE = 'my_news_test';
var TEST_TABLE = 'node_user';
//创建连接
var client = mysql.createConnection({ host:'127.0.0.1', user: 'root', password: 'root123',database: 'my_news_test',
});
client.connect();
client.query("use " + TEST_DATABASE);
client.query( 'SELECT * FROM '+TEST_TABLE, function selectCb(err, results, fields) { if (err) { throw err; } if(results){for(var i = 0; i < results.length; i++){console.log("%d\t%s\t%s", results[i].id, results[i].name, results[i].age);}}   client.end(); }
);  

四、Node.js结合MySQL的增、删、改、查操作

1、增
var mysql  = require('mysql');
var connection = mysql.createConnection({    host     : '127.0.0.1',      user     : 'root',             password : 'root123',      port: '3306',                  database: 'my_news_test',
});connection.connect();var  userAddSql = 'INSERT INTO node_user(id,name,age) VALUES(0,?,?)';
var  userAddSql_Params = ['Wilson', 55];
//增 add
connection.query(userAddSql,userAddSql_Params,function (err, result) {if(err){console.log('[INSERT ERROR] - ',err.message);return;}       console.log('-------INSERT----------');//console.log('INSERT ID:',result.insertId);       console.log('INSERT ID:',result);       console.log('#######################');
});
connection.end();

2、改
var mysql  = require('mysql'); var connection = mysql.createConnection({    host     : '127.0.0.1',      user     : 'root',             password : 'root123',      port: '3306',                  database: 'my_news_test',
});connection.connect();var userModSql = 'UPDATE node_user SET name = ?,age = ? WHERE id = ?';
var userModSql_Params = ['Hello World',99,7];
//改 up
connection.query(userModSql,userModSql_Params,function (err, result) {if(err){console.log('[UPDATE ERROR] - ',err.message);return;}       console.log('----------UPDATE-------------');console.log('UPDATE affectedRows',result.affectedRows);console.log('******************************');
});connection.end();

3、查操作
var mysql  = require('mysql'); var connection = mysql.createConnection({    host     : '127.0.0.1',      user     : 'root',             password : 'root123',      port: '3306',                  database: 'my_news_test',
});connection.connect();var  userGetSql = 'SELECT * FROM node_user';
//查 query
connection.query(userGetSql,function (err, result) {if(err){console.log('[SELECT ERROR] - ',err.message);return;}       console.log('---------------SELECT----------------');console.log(result);       console.log('&&&&&&&&&&&&&&&&&&&&&&&&&&&&&');
});connection.end();

4、删除操作
var mysql  = require('mysql'); var connection = mysql.createConnection({    host     : '127.0.0.1',      user     : 'root',             password : 'root123',      port: '3306',                  database: 'my_news_test',
});connection.connect();var  userDelSql = 'DELETE FROM node_user WHERE id = 7';
//ɾ
connection.query(userDelSql,function (err, result) {if(err){console.log('[DELETE ERROR] - ',err.message);return;}       console.log('-------------DELETE--------------');console.log('DELETE affectedRows',result.affectedRows);console.log('&&&&&&&&&&&&&&&&&');
});connection.end();