diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java
index 0d63c12..98506cc 100644
--- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java
@@ -76,17 +76,37 @@ public class FileUtils {
      * @throws IOException IO异常
      */
     public static String writeBytes(byte[] data, String uploadDir) throws IOException {
-        FileOutputStream fos = null;
-        String pathName = "";
-        try {
-            String extension = getFileExtendName(data);
-            pathName = DateUtils.datePath() + "/" + IdUtils.fastUUID() + "." + extension;
-            File file = FileUploadUtils.getAbsoluteFile(uploadDir, pathName);
-            fos = new FileOutputStream(file);
+//        FileOutputStream fos = null;
+//        String pathName = "";
+//        try {
+//            String extension = getFileExtendName(data);
+//            pathName = DateUtils.datePath() + "/" + IdUtils.fastUUID() + "." + extension;
+//            File file = FileUploadUtils.getAbsoluteFile(uploadDir, pathName);
+//            fos = new FileOutputStream(file);
+//            fos.write(data);
+//        } finally {
+//            IOUtils.close(fos);
+//        }
+//        return FileUploadUtils.getPathFileName(uploadDir, pathName);
+        if (data == null || data.length == 0) {
+            throw new IllegalArgumentException("数据不能为空");
+        }
+
+        String extension = getFileExtendName(data);
+        String pathName = DateUtils.datePath() + "/" + IdUtils.fastUUID() + "." + extension;
+        File file = FileUploadUtils.getAbsoluteFile(uploadDir, pathName);
+
+        // 确保父目录存在
+        file.getParentFile().mkdirs();
+
+        // 使用 try-with-resources 自动管理 FileOutputStream 的生命周期
+        try (FileOutputStream fos = new FileOutputStream(file)) {
             fos.write(data);
-        } finally {
-            IOUtils.close(fos);
+        } catch (IOException e) {
+            // 可以选择记录日志或抛出自定义异常
+            throw new IOException("文件写入失败: " + e.getMessage(), e);
         }
+
         return FileUploadUtils.getPathFileName(uploadDir, pathName);
     }