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安装mysql 模块
在安装根目录 cmd命令行执行命令 。
npm install mysql
安装成功后
mysql数据库表 已存在的情况下。
在nodejs根目录 新建mysql.js
var sys = require('util');
var mysql=require('mysql');
console.log('正在连接MySQL...');
var http = require("http");
var server=http.createServer(function(request, response) {
response.writeHead(200, {"Content-Type": "text/html;charset:utf-8"});
response.write("<!doctype html><html><meta charset='utf-8'/>");
var client = mysql.createConnection({'host':'localhost','port':3306,'user':'testmysql','password':'123456'});
clientConnectionReady = function(client)
{
client.query('use test', function(error, results) {
if(error) {
console.log('ClientConnectionReady Error: ' + error.message);
client.end();
return;
}else{
response.write("nodejs 服务器已经开始工作...<br/>");
response.write("已经连接上MySQL....<br/>");
}
clientReady(client);
});
};
clientReady = function(client) {
var values = ['不错啊'];
client.query('insert into nodemysql set names = :1', values,
function(error, results) {
if(error) {
console.log("ClientReady Error: " + error.message);
client.end();
return;
}
console.log('Inserted: ' + results.affectedRows + ' row.');
console.log('Id inserted: ' + results.insertId);
}
);
getData(client);
}
getData = function(client) {
client.query(
'select * from nodemysql',
function selectCb(error, results, fields) {
if (error) {
console.log('GetData Error: ' + error.message);
client.end();
return;
}
var data = '';
for(var i=0; i<results.length; i++){
var firstResult = results;
data += 'id: ' + firstResult['id']+' name: ' + firstResult['names']+"<br/>";
}
response.write(data);
response.write("关闭MySQL连接...");
response.write("</html>");
response.end();
}
);
client.end();
};
clientConnectionReady(client);
});
server.listen(8033,"127.0.0.1");
var sys = require("util");
sys.puts("Server running at http://localhost:8033/");
运行 node mysql.js 。
浏览器 访问 http://localhost:8033 即可看到效果
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