nodeJs数据库的操作

var mysql = require("mysql");

var connection = mysql.createConnection({
    
    
    host: '127.0.0.1',
    user: 'root',
    password: '123456',
    database: 'userDB'
})

connection.connect();



module.exports.getdata = function(callfun) {
    
    
    var sql = "select  *  from  user";
    connection.query(sql, function(err, data) {
    
    
        console.log(err, data, "数据库返回的数据");
        callfun(data);

    })
}

module.exports.getone = function(id, callfun) {
    
    
    var sql = "select  *  from  user  where  id=" + id;
    connection.query(sql, function(err, data) {
    
    
        console.log(err, data, "查询单条数据");
        callfun(data);

    })
}