파일 업로드 - 첨부파일의 다운로드 attachment 문구및 인코딩 적용

mvc2/upload/src/main/java/hello/upload/controller/ItemController.java

@@ -8,13 +8,17 @@
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.core.io.Resource;
 import org.springframework.core.io.UrlResource;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.servlet.mvc.support.RedirectAttributes;
+import org.springframework.web.util.UriUtils;
 
 import java.io.IOException;
 import java.net.MalformedURLException;
+import java.nio.charset.StandardCharsets;
 import java.util.List;
 
 @Slf4j
@@ -59,7 +63,24 @@ public Resource downloadImage(@PathVariable String filename) throws MalformedURL
         return new UrlResource("file:" + fileStore.getFullPath(filename));
     }
 
+    @GetMapping("/attach/{itemId}")
+    public ResponseEntity<Resource> downloadAttach(@PathVariable Long itemId) throws MalformedURLException {
+        Item item = itemRepository.findById(itemId);
+        String storeFileName = item.getAttachFile().getStoreFileName();
+        String uploadFileName = item.getAttachFile().getUploadFileName();
 
+        UrlResource urlResource = new UrlResource("file:" + fileStore.getFullPath(storeFileName));
+
+        log.info("uploadFileName={}", uploadFileName);
+
+        String encodedUploadFileName = UriUtils.encode(uploadFileName, StandardCharsets.UTF_8);
+        String contentDisposition = "attachment; filename=\"" + encodedUploadFileName + "\"";
+
+
+        return ResponseEntity.ok()
+                .header(HttpHeaders.CONTENT_DISPOSITION, contentDisposition)
+                .body(urlResource);
+    }