chuanqi-qycq-web/module/server/mysql/index.js

import mysql from "mysql2";
import config from "../config/index.js";
import * as log4js from "../log4js.js";

const pool = mysql.createPool({
  host: config.mysql.host,
  port: config.mysql.port,
  user: config.mysql.user,
  password: config.mysql.password,
  connectionLimit: 10,
  queryFormat: function (sql, values) {
    const opts = { sql, values }
    this._resolveNamedPlaceholders(opts)
    log4js.mysql.debug(opts.sql, opts.values)
    return mysql.format(
      opts.sql,
      opts.values,
      this.config.stringifyObjects,
      this.config.timezone
    )
  }
});

export default pool.promise();