diff --git a/src/main/java/a8k/hardware/controler/Controler.java b/src/main/java/a8k/hardware/controler/Controler.java
index 9630df6..39f2593 100644
--- a/src/main/java/a8k/hardware/controler/Controler.java
+++ b/src/main/java/a8k/hardware/controler/Controler.java
@@ -74,7 +74,7 @@ public class Controler {
 
 			Map<String,Object> param = new HashMap<>();
 			param.put("key", methodName.substring(3));
-			param.put("type", method.getReturnType().getSimpleName());
+			param.put("type", method.getReturnType().getName());
 			param.put("group", paramAnnotation.group());
 			param.put("name",paramAnnotation.name());
 			param.put("value", method.invoke(paramService));
@@ -246,4 +246,26 @@ public class Controler {
 		}
 		return AppRet.success(actionResult);
 	}
+
+	@PostMapping("/api/service-config/class-struct-info-get")
+	@ResponseBody
+	public AppRet<Object> classStructInfoGet( @RequestBody Map<String, Object> params ) throws Exception {
+		String className = (String)params.get("class");
+		Class<?> clazz = Class.forName(className);
+		List<Map<String,Object>> struct = new ArrayList<>();
+		this.classStructInfoFill(clazz, struct);
+		return AppRet.success(struct);
+	}
+
+	// fill up struct info
+	private void classStructInfoFill( Class<?> clazz, List<Map<String,Object>> struct ) {
+		var fields = clazz.getFields();
+		for ( var item : fields ) {
+			var filed = new HashMap<String,Object>();
+			filed.put("name", item.getName());
+			filed.put("type", item.getType().getName());
+			filed.put("typeShort", item.getType().getSimpleName());
+			struct.add(filed);
+		}
+	}
 }