diff --git a/core/src/main/java/org/pqh/gif/PixivUtil.java b/core/src/main/java/org/pqh/gif/PixivUtil.java
index b5419ce..c41deaa 100644
--- a/core/src/main/java/org/pqh/gif/PixivUtil.java
+++ b/core/src/main/java/org/pqh/gif/PixivUtil.java
@@ -17,7 +17,6 @@ import java.awt.image.BufferedImage;
 import java.io.*;
 import java.util.Enumeration;
 import java.util.List;
-import java.util.concurrent.TimeUnit;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 
@@ -46,7 +45,7 @@ public class PixivUtil implements LogManger{
         BufferedOutputStream bos = null;
         ZipFile zipFile = null;
         String imageUrl=baseUrl+illust_id;
-        String path=null;
+        String path;
         try {
             log.info("图片链接："+imageUrl);
             Connection.Response response=Jsoup.connect(imageUrl).cookie("PHPSESSID",phpsessid).execute();
@@ -91,7 +90,8 @@ public class PixivUtil implements LogManger{
                         while ((count = is.read(buf)) > -1) {
                             bos.write(buf, 0, count);
                         }
-
+                        bos.close();
+                        is.close();
                         ImageIO.write(ImageIO.read(imgFile),"png",new File(imgPath.replace("jpg","png")));
                     }
 
@@ -114,15 +114,7 @@ public class PixivUtil implements LogManger{
             e.printStackTrace();
         }finally {
             try {
-                if(bos != null){
-                    bos.close();
-                }
-                if(fos != null) {
-                    fos.close();
-                }
-                if(is != null){
-                    is.close();
-                }
+
                 if(zipFile != null){
                     zipFile.close();
                 }
@@ -153,6 +145,7 @@ public class PixivUtil implements LogManger{
      */
     public static void jpgToGif(String gifName,String jpgPath,JsonNode node){
         AnimatedGifEncoder animatedGifEncoder=new AnimatedGifEncoder();
+
         OutputStream outputStream= null;
         InputStream inputStream=null;
         File file=new File(jpgPath);
@@ -180,8 +173,8 @@ public class PixivUtil implements LogManger{
                 //把帧添加进去合成
                 animatedGifEncoder.addFrame(image);
                 animatedGifEncoder.setDelay(delay);
-
                 log.info(gifName+"：正在合成第"+((index+1)+"帧"));
+                inputStream.close();
             }
             //添加完所有帧开始合成
             animatedGifEncoder.finish();
@@ -197,17 +190,10 @@ public class PixivUtil implements LogManger{
                 if(outputStream!=null){
                     outputStream.close();
                 }
-                if(inputStream!=null){
-                    inputStream.close();
-                }
+                FileUtils.deleteDirectory(file);
 
-                while (!FileUtils.deleteQuietly(file)){
-                    TimeUnit.SECONDS.sleep(1);
-                }
             } catch (IOException e) {
                 e.printStackTrace();
-            } catch (InterruptedException e) {
-                e.printStackTrace();
             }
         }