fix: msg不允许为空

wl

2022-12-23 b680856aa7a5c7225fae1ea81f2706f10437f373

 src/main/java/com/example/jz/modle/R.java

@@ -33,7 +33,7 @@
   private T data;

   public static <T> R<T> ok() {
      return restResult(null, BusinessHttpStatus.SUCCESS.value(), null);
      return restResult(null, BusinessHttpStatus.SUCCESS.value(), "执行成功");
   }

   public static <T> R<T> ok(T data) {