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();