diff --git a/kernel-d-mongodb/mongodb-sdk-file/src/main/java/cn/stylefeng/roses/kernel/mongodb/file/entity/MongoFileEntity.java b/kernel-d-mongodb/mongodb-sdk-file/src/main/java/cn/stylefeng/roses/kernel/mongodb/file/entity/MongoFileEntity.java
index bbd3e693c..aaac29dd0 100644
--- a/kernel-d-mongodb/mongodb-sdk-file/src/main/java/cn/stylefeng/roses/kernel/mongodb/file/entity/MongoFileEntity.java
+++ b/kernel-d-mongodb/mongodb-sdk-file/src/main/java/cn/stylefeng/roses/kernel/mongodb/file/entity/MongoFileEntity.java
@@ -45,17 +45,44 @@ import java.util.Date;
 @Document("mongo_file")
 public class MongoFileEntity extends BaseRequest {
 
+    /**
+     * 集合id
+     */
     @Id
     private String id;
+
+    /**
+     * 文件名称
+     */
     private String name;
+
+    /**
+     * 上传文件日期
+     */
     private Date uploadDate;
+
+    /**
+     * 上传文件用户编号
+     */
     private Long uploadUserId;
+
+    /**
+     * 文件后缀名
+     */
     private String suffix;
+
+    /**
+     * 文件描述
+     */
     private String description;
+
+    /**
+     * Mongodb GridFS 中 fs.files集合编号
+     */
     private String gridfsId;
 
     /**
-     * 分页 响应字段
+     * 下载文件的 响应字段
      */
     private byte[] content;