DB 연결오류 3차수정

@@ -21,25 +21,25 @@ const connection = mysql.createConnection({
   database: conf.database,
 });
 // connection.connect();
-// function handleDisconnect() {
-//   connection.connect(function (err) {
-//     if (err) {
-//       console.log("error when connecting to db:", err);
-//       setTimeout(handleDisconnect, 4000);
-//     }
-//   });
-
-//   connection.on("error", function (err) {
-//     console.log("db error", err);
-//     if (err.code === "PROTOCOL_CONNECTION_LOST") {
-//       return handleDisconnect();
-//     } else {
-//       throw err;
-//     }
-//   });
-// }
-
-// handleDisconnect();
+function handleDisconnect() {
+  connection.connect(function (err) {
+    if (err) {
+      console.log("error when connecting to db:", err);
+      setTimeout(handleDisconnect, 4000);
+    }
+  });
+
+  connection.on("error", function (err) {
+    console.log("db error", err);
+    if (err.code === "PROTOCOL_CONNECTION_LOST") {
+      return handleDisconnect();
+    } else {
+      throw err;
+    }
+  });
+}
+
+handleDisconnect();
 
 app.use(bodyParser.json());
 app.use(bodyParser.urlencoded({ extended: true }));