Fatal error: Uncaught PDOException: SQLSTATE[HY000] [2002] Connection refused in /Data/webapps/xiaodian/lib/core/extend/mysql_class.php:73 Stack trace: #0 /Data/webapps/xiaodian/lib/core/extend/mysql_class.php(73): PDO->__construct('mysql:host=xdmy...', 'wm', 'Wm2017Repai', Array) #1 /Data/webapps/xiaodian/lib/core/extend/mysql_class.php(31): mysql_class->connect() #2 /Data/webapps/xiaodian/class/baseclass.php(35): mysql_class->__construct() #3 /Data/webapps/xiaodian/lib/core/application_class.php(258): baseclass->init() #4 /Data/webapps/xiaodian/index.php(23): myapp->run() #5 {main} thrown in /Data/webapps/xiaodian/lib/core/extend/mysql_class.php on line 73