w

src/main/java/com/jh/boot/attachment/api/AttachmentApiController.java

 package com.jh.boot.attachment.api;
 
+import java.io.InputStream;
 import java.util.List;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
+import org.springframework.core.io.InputStreamResource;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
@@ -11,6 +17,7 @@ import org.springframework.web.bind.annotation.ResponseBody;
 
 import com.jh.boot.attachment.Attachment;
 import com.jh.boot.attachment.AttachmentService;
+import com.jh.boot.web.error.NotFoundException;
 
 @Controller
 @ConditionalOnBean(AttachmentService.class)
@@ -26,5 +33,23 @@ public class AttachmentApiController {
 	}
 	
 	
+	@GetMapping("/attachments/{attachmentId}")
+    public ResponseEntity<InputStreamResource> fetch(@PathVariable("unitId") Long unitId, @PathVariable("objectType") String objectType, @PathVariable("objectId") Long objectId, @PathVariable("attachmentId") Long attachmentId) {
+    	Attachment a = service.fetchAttachment(attachmentId);
+    	if (a == null) {
+    		throw new NotFoundException();
+    	}
+    	
+    	InputStream is = service.fetchAttachmentBody(a);
+    	if (is == null) {
+    		throw new NotFoundException();
+    	}
+    	
+    	HttpHeaders headers = new HttpHeaders();
+    	headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
+    	headers.set("Content-Disposition", "attachment; filename=\"" + a.getName() + "\"");
+    	
+    	return new ResponseEntity<>(content, headers, HttpStatus.OK);
+    }
 	
 }