diff --git a/bonus-modules/bonus-ai/src/main/java/com/bonus/ai/utils/FileTypeUtils.java b/bonus-modules/bonus-ai/src/main/java/com/bonus/ai/utils/FileTypeUtils.java
deleted file mode 100644
index 7dcd2af..0000000
--- a/bonus-modules/bonus-ai/src/main/java/com/bonus/ai/utils/FileTypeUtils.java
+++ /dev/null
@@ -1,75 +0,0 @@
-package com.bonus.ai.utils;
-
-import org.apache.commons.lang3.StringUtils;
-
-import java.io.File;
-
-/**
- * 文件类型工具类
- *
- * @author ruoyi
- */
-public class FileTypeUtils {
-    public static final String FILE_TYPE_XLS = "application/vnd.ms-excel";
-    public static final String FILE_TYPE_XLSX = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
-    public static final String FILE_TYPE_DOC = "application/msword";
-    public static final String FILE_TYPE_DOCX = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
-    public static final String FILE_TYPE_PDF = "application/pdf";
-    public static final String FILE_TYPE_JSON = "application/json";
-    public static final String FILE_TYPE_XML = "application/xml";
-    public static final String FILE_TYPE_PNG = "image/png";
-    public static final String FILE_TYPE_JPEG = "image/jpeg";
-    public static final String FILE_TYPE_SVG = "image/svg";
-
-    /**
-     * 获取文件类型
-     * <p>
-     * 例如: ruoyi.txt, 返回: txt
-     *
-     * @param file 文件名
-     * @return 后缀（不含".")
-     */
-    public static String getFileType(File file) {
-        if (null == file) {
-            return StringUtils.EMPTY;
-        }
-        return getFileType(file.getName());
-    }
-
-    /**
-     * 获取文件类型
-     * <p>
-     * 例如: ruoyi.txt, 返回: txt
-     *
-     * @param fileName 文件名
-     * @return 后缀（不含".")
-     */
-    public static String getFileType(String fileName) {
-        int separatorIndex = fileName.lastIndexOf(".");
-        if (separatorIndex < 0) {
-            return "";
-        }
-        return fileName.substring(separatorIndex + 1).toLowerCase();
-    }
-
-    /**
-     * 获取文件类型
-     *
-     * @param photoByte 文件字节码
-     * @return 后缀（不含".")
-     */
-    public static String getFileExtendName(byte[] photoByte) {
-        String strFileExtendName = "JPG";
-        if ((photoByte[0] == 71) && (photoByte[1] == 73) && (photoByte[2] == 70) && (photoByte[3] == 56)
-                && ((photoByte[4] == 55) || (photoByte[4] == 57)) && (photoByte[5] == 97)) {
-            strFileExtendName = "GIF";
-        } else if ((photoByte[6] == 74) && (photoByte[7] == 70) && (photoByte[8] == 73) && (photoByte[9] == 70)) {
-            strFileExtendName = "JPG";
-        } else if ((photoByte[0] == 66) && (photoByte[1] == 77)) {
-            strFileExtendName = "BMP";
-        } else if ((photoByte[1] == 80) && (photoByte[2] == 78) && (photoByte[3] == 71)) {
-            strFileExtendName = "PNG";
-        }
-        return strFileExtendName;
-    }
-}