diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/domain/bo/SysOssPartUploadBo.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/domain/bo/SysOssPartUploadBo.java
index 0291ce95f..295c82900 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/domain/bo/SysOssPartUploadBo.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/domain/bo/SysOssPartUploadBo.java
@@ -1,6 +1,7 @@
 package org.dromara.system.domain.bo;
 
 import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
 import lombok.Data;
 
@@ -26,9 +27,8 @@ public class SysOssPartUploadBo implements Serializable {
 
     /**
      * 文件名
-     * TODO 非必填，如果为空则从上传的文件中获取
      */
-//    @NotBlank(message = "文件名不能为空")
+    @NotBlank(message = "文件名不能为空")
     private String fileName;
 
     /**
@@ -44,6 +44,18 @@ public class SysOssPartUploadBo implements Serializable {
     @Min(value = 1, message = "分片序号不能小于1")
     private Integer partNumber;
 
+    /**
+     * 分片大小
+     */
+//    @NotNull(message = "分片大小不能为空")
+    private Long partSize;
+
+    /**
+     * 分片数量
+     */
+//    @NotNull(message = "分片数量不能为空")
+    private Long totalParts;
+
     /**
      * 是否需要合并
      */
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/domain/vo/SysOssPartUploadVo.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/domain/vo/SysOssPartUploadVo.java
index 784f0af06..335200d83 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/domain/vo/SysOssPartUploadVo.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/domain/vo/SysOssPartUploadVo.java
@@ -38,4 +38,10 @@ public class SysOssPartUploadVo implements Serializable {
      */
     private Boolean mergeCompleted;
 
+    /**
+     * 分片上传ID - 仅在文件成功合并，数据落库时才会生成
+     * @see this#mergeCompleted 分片文件合并状态
+     */
+    private Long ossId;
+
 }
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysOssServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysOssServiceImpl.java
index ec633ffd5..46563f409 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysOssServiceImpl.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysOssServiceImpl.java
@@ -275,19 +275,13 @@ public class SysOssServiceImpl implements ISysOssService, OssService {
     private SysOssPartUploadVo createPartUpload(MultipartFile file, SysOssPartUploadBo bo) throws IOException {
         // 文件大小
         Long fileSize = bo.getFileSize();
-        // 获取第一片文件的大小作为分片大小
-        long partSize = file.getSize();
-        // 计算总片数
-        long totalParts = fileSize / partSize;
-        // 当除以分数有余数时每分片总数+1
-        if (fileSize % partSize > 0) {
-            totalParts += 1;
-        }
-        // 获取文件名，如果文件名为空，则使用从上传的文件中获取
+        // 分片大小
+        Long partSize = bo.getPartSize();
+        // 分片数量
+        Long totalParts = bo.getTotalParts();
+        // 文件名
         String originalFileName = bo.getFileName();
-        if (StringUtils.isBlank(originalFileName)) {
-            originalFileName = file.getOriginalFilename();
-        }
+        // 从文件名中获取文件后缀
         String suffix = StringUtils.substring(originalFileName, originalFileName.lastIndexOf("."), originalFileName.length());
         OssClient storage = OssFactory.instance();
         CreatePartUploadResult partUpload = storage.createPartUploadSuffix(suffix);
@@ -319,7 +313,14 @@ public class SysOssServiceImpl implements ISysOssService, OssService {
      * @return 分片上传对象信息VO
      */
     private SysOssPartUploadVo partUpload(OssClient storage, PartUploadInfo partUploadInfo, MultipartFile file, Integer partNumber) throws IOException {
+        // 文件上传ID
         String uploadId = partUploadInfo.getUploadId();
+        // 构建分片上传对象信息VO
+        SysOssPartUploadVo sysOssPartUploadVo = new SysOssPartUploadVo();
+        sysOssPartUploadVo.setUploadId(uploadId);
+        sysOssPartUploadVo.setUrl(partUploadInfo.getUrl());
+        sysOssPartUploadVo.setPartInfoList(partUploadInfo.getPartInfoList());
+        sysOssPartUploadVo.setMergeCompleted(partUploadInfo.isNeedMerge());
         // 上传分片
         PartUploadResult partUploadResult = storage.partUpload(file.getInputStream(), partUploadInfo.getFileName(), uploadId, partNumber, file.getSize());
         // 将完成上传的分片信息放入集合中
@@ -340,13 +341,9 @@ public class SysOssServiceImpl implements ISysOssService, OssService {
             oss.setFileName(partUploadInfo.getFileName());
             oss.setUrl(partUploadInfo.getUrl());
             baseMapper.insert(oss);
+            // 回填对象存储ID
+            sysOssPartUploadVo.setOssId(oss.getOssId());
         }
-        // 构建分片上传对象信息VO
-        SysOssPartUploadVo sysOssPartUploadVo = new SysOssPartUploadVo();
-        sysOssPartUploadVo.setUploadId(uploadId);
-        sysOssPartUploadVo.setUrl(partUploadInfo.getUrl());
-        sysOssPartUploadVo.setPartInfoList(partUploadInfo.getPartInfoList());
-        sysOssPartUploadVo.setMergeCompleted(partUploadInfo.isNeedMerge());
         return sysOssPartUploadVo;
     }