外部mysql数据库连接增加useSSL=false参数

o2server/configSample/externalDataSources_mysql.json

 [
 	{
-		"url":"jdbc:mysql://127.0.0.1:3306/X?autoReconnect=true&useUnicode=true&characterEncoding=UTF-8&useLegacyDatetimeCode=false&serverTimezone=GMT%2B8",      
+		"url":"jdbc:mysql://127.0.0.1:3306/X?autoReconnect=true&useSSL=false&useUnicode=true&characterEncoding=UTF-8&useLegacyDatetimeCode=false&serverTimezone=GMT%2B8",
 		"username" : "root",
 		"password" :"password",
 		"includes": [],
 		"excludes": [],
 		"enable" : true
 	}
-]
\ No newline at end of file
+]