根据cad生成houseType.json工具增加空判断

4dkankan-utils-model/src/main/java/com/fdkankan/model/utils/CreateHouseJsonUtil.java

@@ -1,5 +1,6 @@
 package com.fdkankan.model.utils;
 
+import cn.hutool.core.collection.CollUtil;
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
@@ -42,6 +43,9 @@ public class CreateHouseJsonUtil {
 	public static JSONObject createHouseTypeJsonByCad(String filePath) {
 
 		JSONArray floors = readFloorJson(filePath);
+		if(CollUtil.isEmpty(floors)){
+			return null;
+		}
 
 		JSONObject house = new JSONObject();
 		house.put("name", "houseType.json");