更新UI

DataCenter/MySQL.cpp

@@ -19,6 +19,7 @@ bool MySQL::open(const QString &host,
                  const QString &pwd,
                  const QString &dbName)
 {
+    isConnectOK = false;
     if (QSqlDatabase::contains("qt_mysql_conn"))
         db_ = QSqlDatabase::database("qt_mysql_conn");
     else
@@ -32,9 +33,11 @@ bool MySQL::open(const QString &host,
 
     if (!db_.open()) {
         qWarning() << timeStamp() << "【错误】连接失败：" << db_.lastError().text();
+        isConnectOK = false;
         return false;
     }
     qInfo() << timeStamp() << "【信息】数据库连接成功";
+    isConnectOK = true;
     return true;
 }