diff --git a/jeecg-boot/jeecg-boot-base/jeecg-boot-base-core/src/main/java/org/jeecg/common/util/MinioUtil.java b/jeecg-boot/jeecg-boot-base/jeecg-boot-base-core/src/main/java/org/jeecg/common/util/MinioUtil.java
index a4de7651d..bbff3a456 100644
--- a/jeecg-boot/jeecg-boot-base/jeecg-boot-base-core/src/main/java/org/jeecg/common/util/MinioUtil.java
+++ b/jeecg-boot/jeecg-boot-base/jeecg-boot-base-core/src/main/java/org/jeecg/common/util/MinioUtil.java
@@ -75,7 +75,7 @@ public class MinioUtil {
                 orgName=file.getName();
             }
             orgName = CommonUtils.getFileName(orgName);
-            String objectName = bizPath+"/"+orgName.substring(0, orgName.lastIndexOf(".")) + "_" + System.currentTimeMillis() + orgName.substring(orgName.indexOf("."));
+            String objectName = bizPath+"/"+orgName.substring(0, orgName.lastIndexOf(".")) + "_" + System.currentTimeMillis() + orgName.substring(orgName.lastIndexOf("."));
 
             // 使用putObject上传一个本地文件到存储桶中。
             if(objectName.startsWith("/")){
diff --git a/jeecg-boot/jeecg-boot-base/jeecg-boot-base-core/src/main/java/org/jeecg/common/util/oss/OssBootUtil.java b/jeecg-boot/jeecg-boot-base/jeecg-boot-base-core/src/main/java/org/jeecg/common/util/oss/OssBootUtil.java
index fa5c4935f..28a0ba909 100644
--- a/jeecg-boot/jeecg-boot-base/jeecg-boot-base-core/src/main/java/org/jeecg/common/util/oss/OssBootUtil.java
+++ b/jeecg-boot/jeecg-boot-base/jeecg-boot-base-core/src/main/java/org/jeecg/common/util/oss/OssBootUtil.java
@@ -111,7 +111,7 @@ public class OssBootUtil {
               orgName=file.getName();
             }
             orgName = CommonUtils.getFileName(orgName);
-            String fileName = orgName.substring(0, orgName.lastIndexOf(".")) + "_" + System.currentTimeMillis() + orgName.substring(orgName.indexOf("."));
+            String fileName = orgName.substring(0, orgName.lastIndexOf(".")) + "_" + System.currentTimeMillis() + orgName.substring(orgName.lastIndexOf("."));
             if (!fileDir.endsWith("/")) {
                 fileDir = fileDir.concat("/");
             }