diff --git a/jcloud/api/local_app.py b/jcloud/api/local_app.py
index 724215b..fbe963e 100644
--- a/jcloud/api/local_app.py
+++ b/jcloud/api/local_app.py
@@ -112,7 +112,7 @@ def get_local_app(name):
 	"""获取本地应用详情"""
 	
 	if not jingrow.db.exists("Local App", name):
-		jingrow.throw("Local App not found")
+		return {"success": False, "message": "应用不存在"}
 	
 	app = jingrow.get_pg("Local App", name)
 	
@@ -177,21 +177,31 @@ def update_local_app(name, app_data):
 	"""更新本地应用"""
 	
 	if not jingrow.db.exists("Local App", name):
-		jingrow.throw("Local App not found")
+		return {"success": False, "message": "应用不存在"}
 	
 	app = jingrow.get_pg("Local App", name)
 	
+	# 解析 JSON 数据
 	if isinstance(app_data, str):
-		import json
-		app_data = json.loads(app_data)
+		try:
+			import json
+			app_data = json.loads(app_data)
+		except json.JSONDecodeError:
+			return {"success": False, "message": "JSON 数据格式错误"}
 	
 	# 更新字段
+	updated_fields = []
 	for field, value in app_data.items():
 		if hasattr(app, field):
 			setattr(app, field, value)
+			updated_fields.append(field)
+	
+	# 检查是否有字段被更新
+	if not updated_fields:
+		return {"success": False, "message": "没有有效的字段被更新"}
 	
 	app.save()
-	return app.name
+	return {"success": True, "name": app.name, "updated_fields": updated_fields, "message": "应用更新成功"}
 
 
 @dashboard_whitelist()
@@ -199,12 +209,12 @@ def delete_local_app(name):
 	"""删除本地应用"""
 	
 	if not jingrow.db.exists("Local App", name):
-		jingrow.throw("Local App not found")
+		return {"success": False, "message": "应用不存在"}
 	
 	app = jingrow.get_pg("Local App", name)
 	app.delete()
 	
-	return "Local App deleted successfully"
+	return {"success": True, "message": "应用删除成功"}
 
 
 @jingrow.whitelist(allow_guest=True)