空指针修复

@@ -99,7 +99,10 @@ public class ProductSearchServiceImpl implements ProductSearchService {
         SearchParam searchParam = new SearchParam().buildPageSearchParam(req);
         JSONObject data = search(searchParam.getParam(), PRODUCT_LIST_URL);
         //  将图片的相对路径转成绝对路径
+        if (null != data) {
             processProductList(data.getJSONArray("product_list"));
+        }
+
         return data;
     }