fix

zhongzheng-system/src/main/java/com/zhongzheng/modules/alioss/service/impl/OssServiceImpl.java

@@ -244,6 +244,9 @@ public class OssServiceImpl implements OssService {
         JSONObject resultBean = new JSONObject();
         String filename = request.getParameter("filename");
         filename = ALIYUN_OSS_ENDPOINT.concat("/").concat(filename);
+        if(Validator.isEmpty(request.getParameter("size"))||request.getParameter("size").equals("0")){
+            return  null;
+        }
         resultBean.put("filename", filename);
         resultBean.put("size", request.getParameter("size"));
         resultBean.put("mimeType", request.getParameter("mimeType"));