private static String  autoCheckValidationQuery(String url){
		if(url.startsWith("jdbc:oracle")){
			return "select 1 from dual";
		}else if(url.startsWith("jdbc:db2")){
			return "select 1 from sysibm.sysdummy1";
		}else if(url.startsWith("jdbc:hsqldb")){
			return "select 1 from INFORMATION_SCHEMA.SYSTEM_USERS";
		}else if(url.startsWith("jdbc:derby")){
			return "select 1 from INFORMATION_SCHEMA.SYSTEM_USERS";
		}
		return "select 1";
	}
private static String autoCheckValidationQuery ( String url ) { if ( url . startsWith ( "jdbc:oracle" ) ) { return "select 1 from dual" ; } else if ( url . startsWith ( "jdbc:db2" ) ) { return "select 1 from sysibm.sysdummy1" ; } else if ( url . startsWith ( "jdbc:hsqldb" ) ) { return "select 1 from INFORMATION_SCHEMA.SYSTEM_USERS" ; } else if ( url . startsWith ( "jdbc:derby" ) ) { return "select 1 from INFORMATION_SCHEMA.SYSTEM_USERS" ; } return "select 1" ; }
@Title: autoCheckValidationQuery
@Description: 自动设定探测sql
@param url
@return
@since V1.0.0