一，創(chuàng)建數(shù)據(jù)庫

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', '張三', '35'); INSERT INTO `node_user` VALUES ('4', 'ABCDEF', '88'); INSERT INTO `node_user` VALUES ('5', '李小二', '65');

二，連接

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

注意要記得安裝node_mysql,直接使用npm install mysql

//mysql.js //首先需要安裝nodejs 的mysql包 //npm install mysql //編寫nodejs與mysql交互的代碼var mysql = require('mysql'); var TEST_DATABASE = 'my_news_test'; var TEST_TABLE = 'node_user'; //創(chuàng)建連接 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結(jié)合MySQL的增、刪、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、刪除操作 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'; //? 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();

轉(zhuǎn)載于:https://www.cnblogs.com/cxsabc/p/10627633.html

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