diff --git a/cloud-common/src/main/java/com/cm/common/pojo/dtos/FileDTO.java b/cloud-common/src/main/java/com/cm/common/pojo/dtos/FileDTO.java
index c5d2558..10c7859 100644
--- a/cloud-common/src/main/java/com/cm/common/pojo/dtos/FileDTO.java
+++ b/cloud-common/src/main/java/com/cm/common/pojo/dtos/FileDTO.java
@@ -22,7 +22,7 @@ public class FileDTO {
     @ApiModelProperty(name = "fileType", value = "文件类型")
     private String fileType;
     @ApiModelProperty(name = "fileSize", value = "文件大小")
-    private String fileSize;
+    private Long fileSize;
 
     public String getFileId() {
         return fileId == null ? "" : fileId.trim();
@@ -56,11 +56,11 @@ public class FileDTO {
         this.fileType = fileType;
     }
 
-    public String getFileSize() {
-        return fileSize == null ? "" : fileSize.trim();
+    public Long getFileSize() {
+        return fileSize;
     }
 
-    public void setFileSize(String fileSize) {
+    public void setFileSize(Long fileSize) {
         this.fileSize = fileSize;
     }