diff --git a/plugin.xml b/plugin.xml
index 391efbf..63de31a 100644
--- a/plugin.xml
+++ b/plugin.xml
@@ -5,12 +5,13 @@
     <main-package>com.fanruan.fs</main-package>
     <active>yes</active>
     <hidden>no</hidden>
-    <version>1.2.2</version>
+    <version>1.2.3</version>
     <env-version>10.0</env-version>
     <jartime>2020-01-27</jartime>
     <vendor>richie</vendor>
     <description><![CDATA[使用支持S3协议的云存储文件系统作为文件服务器。]]></description>
     <change-notes><![CDATA[
+        [2021-01-20]正式作为官方插件维护。<br/>
         [2020-12-16]修复远程设计新增、修改模板问题。<br/>
         [2020-10-29]修复连接不释放问题。<br/>
         [2020-08-17]修复key不存在时报错的问题。<br/>
diff --git a/src/main/java/com/fanruan/fs/s3/repository/core/S3ResourceRepository.java b/src/main/java/com/fanruan/fs/s3/repository/core/S3ResourceRepository.java
index 73eb62d..4ea1913 100644
--- a/src/main/java/com/fanruan/fs/s3/repository/core/S3ResourceRepository.java
+++ b/src/main/java/com/fanruan/fs/s3/repository/core/S3ResourceRepository.java
@@ -59,11 +59,8 @@ public class S3ResourceRepository extends BaseResourceRepository {
     public FineFileEntry getEntry(String path) {
         GetObjectRequest request = new GetObjectRequest(bucket, path);
         try {
-            S3Object s3Object = s3.getObject(request);
-            try {
+            try (S3Object s3Object = s3.getObject(request)) {
                 return s3Object2FileEntry(s3Object, path);
-            } finally {
-                s3Object.close();
             }
         } catch (Exception e) {
             LogKit.info("{} not exist!", path);
@@ -96,22 +93,6 @@ public class S3ResourceRepository extends BaseResourceRepository {
         return result.toArray(new FineFileEntry[0]);
     }
 
-    private FineFileEntry s3Object2FileEntry(S3ObjectSummary s3Object, String path) {
-        FineFileEntry entry = new FineFileEntry(path);
-        entry.setDirectory(s3Object.getKey().endsWith("/"));
-        entry.setSize(s3Object.getSize());
-        entry.setTimestamp(s3Object.getLastModified().getTime());
-        return entry;
-    }
-
-    private FineFileEntry s3Object2FileEntry(S3Object s3Object, String path) {
-        FineFileEntry entry = new FineFileEntry(path);
-        entry.setDirectory(s3Object.getKey().endsWith("/"));
-        entry.setSize(s3Object.getObjectMetadata().getContentLength());
-        entry.setTimestamp(s3Object.getObjectMetadata().getLastModified().getTime());
-        return entry;
-    }
-
     @Override
     public URL getResource(String path) {
         throw new RuntimeException("Not support method.");
@@ -138,6 +119,8 @@ public class S3ResourceRepository extends BaseResourceRepository {
             if (mimeType != null) {
                 metadata.setContentType(mimeType);
             }
+        }
+        if (metadata != null) {
             metadata.setContentLength(data.length);
         }
         s3.putObject(bucket, path, new ByteArrayInputStream(data), metadata);
@@ -146,7 +129,8 @@ public class S3ResourceRepository extends BaseResourceRepository {
 
     @Override
     public boolean createFile(String path) {
-        PutObjectRequest request = new PutObjectRequest(bucket, path, new ByteArrayInputStream(new byte[0]), new ObjectMetadata());
+
+        PutObjectRequest request = new PutObjectRequest(bucket, path, new ByteArrayInputStream(new byte[0]), buildEmptyMetadata());
         try {
             s3.putObject(request);
         } catch (Exception e) {
@@ -157,7 +141,11 @@ public class S3ResourceRepository extends BaseResourceRepository {
 
     @Override
     public boolean createDirectory(String path) {
-        PutObjectRequest request = new PutObjectRequest(bucket, path + "/", new ByteArrayInputStream(new byte[0]), new ObjectMetadata());
+
+        if (!path.endsWith(DELIMITER)) {
+            path += DELIMITER;
+        }
+        PutObjectRequest request = new PutObjectRequest(bucket, path, new ByteArrayInputStream(new byte[0]), buildEmptyMetadata());
         try {
             s3.putObject(request);
         } catch (Exception e) {
@@ -180,7 +168,7 @@ public class S3ResourceRepository extends BaseResourceRepository {
     @Override
     public boolean exist(String path) {
         try {
-            return s3.doesObjectExist(bucket, path);
+            return s3.doesObjectExist(bucket, path) || s3.doesObjectExist(bucket, path + DELIMITER);
         } catch (Exception e) {
             return false;
         }
@@ -297,4 +285,30 @@ public class S3ResourceRepository extends BaseResourceRepository {
         return S3RepositoryFactory.IDENTITY;
     }
 
+
+    /*--------------------------------------私有方法-----------------------------------------**/
+
+    private ObjectMetadata buildEmptyMetadata() {
+
+        ObjectMetadata metadata = new ObjectMetadata();
+        metadata.setContentLength(0);
+        return metadata;
+    }
+
+    private FineFileEntry s3Object2FileEntry(S3ObjectSummary s3Object, String path) {
+        FineFileEntry entry = new FineFileEntry(path);
+        entry.setDirectory(s3Object.getKey().endsWith("/"));
+        entry.setSize(s3Object.getSize());
+        entry.setTimestamp(s3Object.getLastModified().getTime());
+        return entry;
+    }
+
+    private FineFileEntry s3Object2FileEntry(S3Object s3Object, String path) {
+        FineFileEntry entry = new FineFileEntry(path);
+        entry.setDirectory(s3Object.getKey().endsWith("/"));
+        entry.setSize(s3Object.getObjectMetadata().getContentLength());
+        entry.setTimestamp(s3Object.getObjectMetadata().getLastModified().getTime());
+        return entry;
+    }
+
 }