inint

module/server/mysql/index.js

@@ -7,18 +7,29 @@ const pool = mysql.createPool({
   port: config.mysql.port,
   user: config.mysql.user,
   password: config.mysql.password,
+  database: config.mysql.database,
   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
-    )
-  }
+  // 不在启动时立即建立连接，等第一次查询时再连接
+  waitForConnections: true,
+  enableKeepAlive: true,
+  keepAliveInitialDelay: 10000,
 });
 
-export default pool.promise();
+// 监听连接错误，避免未处理的 Promise rejection 导致进程崩溃
+pool.on('connection', (connection) => {
+  log4js.mysql.info(`MySQL 连接建立 [id=${connection.threadId}] ${config.mysql.host}:${config.mysql.port}`);
+});
+pool.on('error', (err) => {
+  log4js.mysql.error('MySQL 连接池错误:', err.message);
+});
+
+const promisePool = pool.promise();
+
+// 健康检查：启动时 ping 一次数据库，失败只警告不崩溃
+promisePool.query('SELECT 1').then(() => {
+  log4js.mysql.info(`MySQL 连接成功 ${config.mysql.host}:${config.mysql.port}/${config.mysql.database}`);
+}).catch((err) => {
+  log4js.mysql.warn(`MySQL 连接失败（服务仍将继续运行）: ${err.message}`);
+});
+
+export default promisePool;