AdminClient adminClient = AdminClientFactory.createAdminClient(adminProps);
ObjectName objName = adminClient.getServerMBean();
Object freeMemory= adminClient.getAttribute(objName, "freeMemory");
上面的代码只是能获取freeMemory的值，怎么能获取serverMBean下面所有属性的值？或者可以去哪里查找可以采集的属性名？