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 a4de7651dd0a122f399e0b462da53f1a0cb30e5e..bbff3a456d6ab3feadb2c099769c36e3967e7b6c 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 fa5c4935f377924c51d586762f2b0ad7b0bcf8e6..28a0ba909c9713a0920b3fe3dbbd76f3939a9803 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("/");
             }