带有express & mysql - WHERE IN的Node.js API和带有多个逗号分隔值的bind参数

npm install express mysql

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

const app = express();

// 创建MySQL连接
const connection = mysql.createConnection({
  host: 'localhost',
  user: 'root',
  password: 'password',
  database: 'database_name'
});

// 连接到MySQL数据库
connection.connect((err) => {
  if (err) {
    console.error('Error connecting to MySQL database: ' + err.stack);
    return;
  }
  console.log('Connected to MySQL database as id ' + connection.threadId);
});

// 定义API路由
app.get('/api/data', (req, res) => {
  const values = req.query.values.split(','); // 获取逗号分隔的值

  // 构建查询语句和绑定参数
  const query = 'SELECT * FROM table_name WHERE column_name IN (?)';
  const params = [values];

  // 执行查询
  connection.query(query, params, (err, results) => {
    if (err) {
      console.error('Error executing MySQL query: ' + err.stack);
      return res.status(500).json({ error: 'Internal Server Error' });
    }
    res.json(results);
  });
});

// 启动服务器
app.listen(3000, () => {
  console.log('Server is running on port 3000');
});