diff --git a/server/src/main/java/cn/keking/service/impl/PdfFilePreviewImpl.java b/server/src/main/java/cn/keking/service/impl/PdfFilePreviewImpl.java
index 1491374a..2d92980b 100644
--- a/server/src/main/java/cn/keking/service/impl/PdfFilePreviewImpl.java
+++ b/server/src/main/java/cn/keking/service/impl/PdfFilePreviewImpl.java
@@ -6,7 +6,6 @@ import cn.keking.model.ReturnResponse;
 import cn.keking.service.FilePreview;
 import cn.keking.utils.DownloadUtils;
 import cn.keking.service.FileHandlerService;
-import cn.keking.web.filter.BaseUrlFilter;
 import org.apache.commons.lang3.exception.ExceptionUtils;
 import org.apache.poi.EncryptedDocumentException;
 import org.springframework.stereotype.Service;
@@ -37,7 +36,6 @@ public class PdfFilePreviewImpl implements FilePreview {
     public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
         String fileName = fileAttribute.getName();
         String officePreviewType = fileAttribute.getOfficePreviewType();
-        String baseUrl = BaseUrlFilter.getBaseUrl();
         boolean forceUpdatedCache=fileAttribute.forceUpdatedCache();
         String pdfName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + "pdf";
         String outFilePath = FILE_DIR + pdfName;