程序使用 VScode 扩展代码运行器连接到 MySQL 数据库，但不使用 node/nodemonECONNREFUSED 错误

如何解决程序使用 VScode 扩展代码运行器连接到 MySQL 数据库，但不使用 node/nodemonECONNREFUSED 错误

跟进：ECONNREFUSED 127.0.0.1:3306 error connecting to MySQL database to NodeJS express server (w/ typescript) 在那里我通过将问题缩小到“通​​过终端运行应用程序而不是代码运行器扩展程序（它仅适用于单个文件而不是分散的文件使向上目录并一起运行）。”

这是我通过终端运行时遇到的问题，即 node/nodemon

Error: connect ECONNREFUSED 127.0.0.1:3306
    at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1146:16)
    --------------------
    at Protocol._enqueue (/mnt/c/Users/abdul/Desktop/nodeMysqL/node_modules/MysqL/lib/protocol/Protocol.js:144:48)
    at Protocol.handshake (/mnt/c/Users/abdul/Desktop/nodeMysqL/node_modules/MysqL/lib/protocol/Protocol.js:51:23)
    at Connection.connect (/mnt/c/Users/abdul/Desktop/nodeMysqL/node_modules/MysqL/lib/Connection.js:116:18)
    at Object.<anonymous> (/mnt/c/Users/abdul/Desktop/nodeMysqL/app.js:13:4)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
    at Module.load (internal/modules/cjs/loader.js:928:32)
    at Function.Module._load (internal/modules/cjs/loader.js:769:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)
    at internal/main/run_main_module.js:17:47 {
  errno: -111,code: 'ECONNREFUSED',syscall: 'connect',address: '127.0.0.1',port: 3306,fatal: true
}

下面是我用来连接到 MysqL 数据库的新代码（请记住，出于某种原因，它可以与 coderunner 扩展一起使用，而不是 node / nodemon）

const express = require("express");
const MysqL = require("MysqL");

// Create connection

const db = MysqL.createConnection({
  host: "localhost",user: "root",password: "password",});

db.connect((err) => {
  if (err) {
    throw err;
  }
  console.log(" ... CONNECTED ... ");
});

const app = express();

app.get("/createdb",(req,res) => {
  let sql = "CREATE DATABASE nodeMysqL";
  db.query(sql,(err,result) => {
    if (err) throw err;
    console.log(result);
    res.send({
      message: "this is the result: " + result,});

    db.end();
  });
});

app.listen("3000",() => {
  console.log("Server started on port 3000");
});

有什么想法吗？