最近在看一個開源項目，項目用的是node.js，在此學習下他的連接mysql與增刪改查。

安卓mysql包：

npm install mysql

程序運行截圖如下：

D:\node\content\node.exe MySqlDemo insert success insert success [RowDataPacket { id: 1, name: '小明' },RowDataPacket { id: 2, name: '小鋼' } ] update success [RowDataPacket { id: 1, name: '小明' },RowDataPacket { id: 2, name: '小剛' } ] delete success [ RowDataPacket { id: 2, name: '小剛' } ] delete success

源碼如下：

let mysql = require('mysql'); let connection = mysql.createConnection({host : '122.xxx.xxx.xxx',user : 'root',password: 'xxxxxxxxxxxx',database : 'nodeDemo' });connection.connect();function queryRecords(){let selectSql = 'select * from my_test';connection.query(selectSql, function (err, results, fields) {if(err){console.log("select error:", err.message);return;}console.log(results);}) }function updateRecord(id, name) {let updateSql = 'update my_test set name = ? where id = ?';let para = [name, id];connection.query(updateSql, para, function (err, result) {if(err){console.log("update error:", err.message);return;}console.log("update success");}) }function deleteRecord(id) {let deleteSql = 'delete from my_test where id = ?';connection.query(deleteSql, id, function (err, result) {if(err){console.log("delete error:", err.message);return;}console.log("delete success");}) }function insertRecord(id, name) {let insertSql = 'insert into my_test(id, name) value(?, ?)';let para = [id, name];connection.query(insertSql, para, function (err, result) {if(err){console.log("insert error:", err.message);return;}console.log("insert success");}) }function run() {insertRecord(1, '小明');insertRecord(2, '小鋼');queryRecords();updateRecord(2, '小剛');queryRecords();deleteRecord(1);queryRecords();deleteRecord(2); }run()

總結

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