Apply some IDEA suggestions

1 files changed, 2 insertions, 2 deletions

diff --git a/src/main/java/com/juick/service/ImagesServiceImpl.java b/src/main/java/com/juick/service/ImagesServiceImpl.java
index 4bdcd7d6..72d5b97c 100644
--- a/src/main/java/com/juick/service/ImagesServiceImpl.java
+++ b/src/main/java/com/juick/service/ImagesServiceImpl.java
@@ -28,8 +28,8 @@ import java.io.IOException;
 import java.nio.file.Paths;
 
 public class ImagesServiceImpl implements ImagesService {
-    private ImageUtils imageUtils;
-    private String imgDir;
+    private final ImageUtils imageUtils;
+    private final String imgDir;
 
     public ImagesServiceImpl(String imgDir, String tmpDir) {
         this.imgDir = imgDir;