weibo/node/mysqler.js

const mysql=require("mysql");  

const pool = mysql.createPool({  
    host: 'db.1473.cn',  
    user: 'root',  
    password: 'usestudio-1',  
    database: 'weibo'
});  
  
const query=function(sql,options,callback){  
    pool.getConnection(function(err,conn){  
        if(err){  
		console.log(err)
            callback(err,null,null);  
        }else{  
            conn.query(sql,options,function(err,results,fields){  
                //释放连接  
                conn.release();  
                //事件驱动回调  
                callback(err,results,fields);  
            });  
        }  
    });  
};  
  
module.exports = query;