diff --git a/src/main/java/cn/lihongjie/coal/dto/R.java b/src/main/java/cn/lihongjie/coal/dto/R.java
index 4086a059..9165c9a1 100644
--- a/src/main/java/cn/lihongjie/coal/dto/R.java
+++ b/src/main/java/cn/lihongjie/coal/dto/R.java
@@ -1,18 +1,24 @@
 package cn.lihongjie.coal.dto;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonInclude.Include;
 import lombok.Data;
 
 @Data
 public class R<T> {
     private T data;
 
-    private String code ;
+    private String code;
 
     private String msg;
 
+    @JsonInclude(Include.NON_NULL)
     private Integer pageNo;
+    @JsonInclude(Include.NON_NULL)
     private Integer pageSize;
+    @JsonInclude(Include.NON_NULL)
     private Integer totalPage;
+    @JsonInclude(Include.NON_NULL)
     private Integer totalCount;
 
 
@@ -30,6 +36,7 @@ public class R<T> {
     public static <T> R<T> success(T data) {
         return create(data, "ok", "");
     }
+
     public static <T> R<T> fail(String code, String msg) {
         return create(null, code, msg);
     }