diff --git a/bonus-modules/bonus-file/src/main/java/com/bonus/file/controller/FileUtilController.java b/bonus-modules/bonus-file/src/main/java/com/bonus/file/controller/FileUtilController.java
index 096aaf8..c2629bf 100644
--- a/bonus-modules/bonus-file/src/main/java/com/bonus/file/controller/FileUtilController.java
+++ b/bonus-modules/bonus-file/src/main/java/com/bonus/file/controller/FileUtilController.java
@@ -68,7 +68,7 @@ public class FileUtilController {
      * @return
      */
     @PostMapping("uploadBast64")
-    public R<UploadFileVo> upload(@RequestBody FileVo vo) {
+    public R<UploadFileVo> uploadBast64(@RequestBody FileVo vo) {
         try {
             if (ObjectUtil.isEmpty(vo.getSourceTable())) {
                 return   R.fail("资源表不能为空");
diff --git a/bonus-modules/bonus-file/src/main/java/com/bonus/file/service/impl/FileUtilsServiceImpl.java b/bonus-modules/bonus-file/src/main/java/com/bonus/file/service/impl/FileUtilsServiceImpl.java
index 0c72f68..e910483 100644
--- a/bonus-modules/bonus-file/src/main/java/com/bonus/file/service/impl/FileUtilsServiceImpl.java
+++ b/bonus-modules/bonus-file/src/main/java/com/bonus/file/service/impl/FileUtilsServiceImpl.java
@@ -34,17 +34,25 @@ public class FileUtilsServiceImpl {
     private FileUtilMapper mapper;
 
     public UploadFileVo upload(String sourceTable, String sourceId, String sourceType,String prefix,String bast64,String bucketName) {
-        UploadFileVo vo=new UploadFileVo();
-        String suffix;
-        if(bast64.contains(",")){
-            String  de = bast64.split(",")[1];
-            byte[] decodedBytes = Base64.getDecoder().decode(de);
-            // 计算文件大小
-            int fileSizeInBytes = decodedBytes.length;
-            long size = (long) Math.ceil(fileSizeInBytes / 1024.0); // 向上取整并保持long类型
-            vo.setFileSize(size);
-        }
 
+        String suffix=null;
+        if(bast64.contains(",")){
+            // 2. 解析Base64前缀，获取图片格式（如png、jpg）
+            String imgPrefix = bast64.substring(0, bast64.indexOf(";base64,"));
+            if (StringUtils.isEmpty(suffix)) {
+                suffix = imgPrefix.substring(imgPrefix.lastIndexOf("/") + 1); // 从前缀提取后缀（如png）
+            }
+            //保留纯净的bast64
+            bast64 = bast64.split(",")[1];
+
+        }
+        UploadFileVo vo=new UploadFileVo();
+        //计算文件大小
+        byte[] decodedBytes = Base64.getDecoder().decode(bast64);
+        // 计算文件大小
+        int fileSizeInBytes = decodedBytes.length;
+        long size = (long) Math.ceil(fileSizeInBytes / 1024.0); // 向上取整并保持long类型
+        vo.setFileSize(size);
         vo.setSourceId(sourceId);
         vo.setSourceTable(sourceTable);
         vo.setSourceType(sourceType);
@@ -56,10 +64,10 @@ public class FileUtilsServiceImpl {
         String month=DateUtils.getCurrentMonth();
         String year=DateUtils.getCurrentYear();
         String uuid = StringUtils.randomUUID();
-         suffix=getBase64Type(bast64);
-
-
-        String fileName=uuid+".jpeg";
+        if(StringUtils.isEmpty(suffix)){
+            suffix=getBase64Type(bast64);
+        }
+        String fileName=uuid+"."+suffix;
         String filePath=prefix+"/"+year+"/"+month+"/"+day+"/"+fileName;
         vo.setFilePath(filePath);
         vo.setOriginFileName(fileName);
diff --git a/bonus-modules/bonus-file/src/main/java/com/bonus/file/utils/MinioUtil.java b/bonus-modules/bonus-file/src/main/java/com/bonus/file/utils/MinioUtil.java
index 5a2f44c..afa47e5 100644
--- a/bonus-modules/bonus-file/src/main/java/com/bonus/file/utils/MinioUtil.java
+++ b/bonus-modules/bonus-file/src/main/java/com/bonus/file/utils/MinioUtil.java
@@ -26,6 +26,8 @@ import java.util.concurrent.Executors;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
+import static java.util.Base64.*;
+
 /**
  * MinioUtil 工具类
  * 封装 MinIO 常用操作，如文件上传、下载、删除、复制等功能
@@ -307,7 +309,7 @@ public class MinioUtil {
         }
 
         byte[] bytes = outputStream.toByteArray();
-        String bast64= Base64.getEncoder().encodeToString(bytes);
+        String bast64= getEncoder().encodeToString(bytes);
         inputStream.close();
         outputStream.close();
         return  bast64;
@@ -357,7 +359,9 @@ public class MinioUtil {
     public static InputStream base64ToInputStream(String base64) {
         ByteArrayInputStream stream = null;
         try {
-            byte[] bytes = Base64.getEncoder().encode(base64.trim().getBytes());
+          //  InputStream inputStream = new ByteArrayInputStream(imgBytes)
+            byte[] bytes = Base64.getDecoder().decode(base64.trim().getBytes());
+           // byte[] imgBytes = Base64.decodeBase64(base64);
             stream = new ByteArrayInputStream(bytes);
         } catch (Exception e) {
             e.printStackTrace();