导航，附件，拦截器

src/main/java/com/lovenav/service/AttachmentService.java

@@ -0,0 +1,9 @@
+package com.lovenav.service;
+
+import org.springframework.web.multipart.MultipartFile;
+
+import java.util.HashMap;
+
+public interface AttachmentService {
+//    public HashMap<String,String>storeFile(MultipartFile multipartFile);
+}