fix

zhongzheng-system/src/main/java/com/zhongzheng/modules/grade/service/impl/ClassGradeUserServiceImpl.java

@@ -590,6 +590,9 @@ public class ClassGradeUserServiceImpl extends ServiceImpl<ClassGradeUserMapper,
         String respone = "";
         try {
             respone = HttpUtils.postFormBody(OFFICIALPUSH_INFOPATH, params);
+           if(Validator.isEmpty(respone)){
+               return "响应信息空";
+           }
             String[] split = respone.split("\\|");
             if (split.length < 2) {
                 return "推送接口返回数据错误";