节点mysql调用quit后无法使查询入队 [英] Node Mysql Cannot Enqueue a query after calling quit

问题描述

我在哪里关闭mysql连接?

where do i close the mysql connection?

我需要按顺序运行查询.我正在编写目前看起来像这样的代码:

I need to run queries in sequence. I am writing code that looks like this at present:

var sqlFindMobile = "select * from user_mobiles where mobile=?";
var sqlNewUser = "insert into users (password) values (?)";
//var sqlUserId = "select last_insert_id() as user_id";
var sqlNewMobile = "insert into user_mobiles (user_id, mobile) values (?,?)";
connection.connect(function(err){});
var query = connection.query(sqlFindMobile, [req.body.mobile], function(err, results) {
    if(err) throw err;
    console.log("mobile query");
    if(results.length==0) {
        var query = connection.query(sqlNewUser, [req.body.password], function(err, results) {
            if(err) throw err;
            console.log("added user");
            var user_id = results.insertId;
            var query = connection.query(sqlNewMobile, [user_id, req.body.mobile], function(err, results) {
                if(err) throw err;
                console.log("added mobile");
                    //connection.end();
                });
        });
    }
});
//connection.end();

(我是节点，npm-express和npm-mysql的初学者.我曾尝试在SO中搜索"express mysql无法入队"以查找相关问题，但未找到它们.)

(I am a beginner with node, npm-express and npm-mysql. I have tried searching SO for "express mysql cannot enqueue" to find related questions and have not found them.)

推荐答案

我使用此方法解决了此问题.

I fixed this problem use this method.

connection.end()在您的connection.query函数中

固定代码为 here

The fixed code is here

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