Node.js Mysql：連接失敗

Question

我正在嘗試將 node.js 連接到 mysql 並且失敗了，我已經安裝了 mysql。 誰能幫我？

const express    = require("express");
const mysql      = require('mysql');

var app = express();

var mysqlConnection = mysql.createConnection({
    host: "localhost",
    user: "root",
    password: "******",
    database: "otablo",
});

mysqlConnection.connect((err)=> {
    if(!err)
    {
        console.log("Connected");
    }
    else
    {
        console.log("Connection Failed");
    }
})

app.listen(3000);

Answer 1

const mysql = require('mysql');

var app = express();
var mysqlConnection = mysql.createConnection({
    host: "localhost",
    user: "root",
    password: "****",
    database: "****",
});

mysqlConnection.connect((err)=> {
    if(!err)
    {
        console.log("Connected");
    }
    else
    {
        console.log("Connection Failed");
    }
})

app.listen(3000);

您的代碼工作正常，請確保您已安裝所有內容並且數據庫的值正確。 它對我有用。

Answer 2

我發現了問題，我收到錯誤消息： ER_NOT_SUPPORTED_AUTH_MODE: Client does not support auth entication protocol requested by server; consider upgrading MyS QL client ER_NOT_SUPPORTED_AUTH_MODE: Client does not support auth entication protocol requested by server; consider upgrading MyS QL client

解決方案：

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password'

Answer 3

我遇到過同樣的問題。 問題出在密碼上。 我嘗試使用在教程中看到的相同密碼，而不是使用我在 mysql 安裝過程中為我的數據庫使用的密碼。