diff --git a/src/main/java/com/yutou/nas/Controllers/MusicController.java b/src/main/java/com/yutou/nas/Controllers/MusicController.java
index 5bc9e1c..e15d3f5 100644
--- a/src/main/java/com/yutou/nas/Controllers/MusicController.java
+++ b/src/main/java/com/yutou/nas/Controllers/MusicController.java
@@ -10,7 +10,7 @@ import org.springframework.core.io.FileSystemResource;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Controller;
-import org.springframework.util.StringUtils;
+import com.yutou.nas.utils.StringUtils;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.ResponseBody;
diff --git a/src/main/java/com/yutou/nas/Controllers/QQBot.java b/src/main/java/com/yutou/nas/Controllers/QQBot.java
index 4a951ab..be1682f 100644
--- a/src/main/java/com/yutou/nas/Controllers/QQBot.java
+++ b/src/main/java/com/yutou/nas/Controllers/QQBot.java
@@ -5,7 +5,7 @@ import com.yutou.nas.interfaces.DownloadInterface;
 import com.yutou.nas.utils.QQBotManager;
 import com.yutou.nas.utils.Tools;
 import org.springframework.stereotype.Controller;
-import org.springframework.util.StringUtils;
+import com.yutou.nas.utils.StringUtils;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseBody;
diff --git a/src/main/java/com/yutou/nas/Controllers/ToolsController.java b/src/main/java/com/yutou/nas/Controllers/ToolsController.java
index 3c98ea1..98fb85a 100644
--- a/src/main/java/com/yutou/nas/Controllers/ToolsController.java
+++ b/src/main/java/com/yutou/nas/Controllers/ToolsController.java
@@ -1,17 +1,14 @@
 package com.yutou.nas.Controllers;
 
-import com.aliyun.oss.OSS;
 import com.yutou.nas.utils.HttpTools;
-import com.yutou.nas.utils.OSSManager;
 import com.yutou.nas.utils.RedisTools;
+import com.yutou.nas.utils.StringUtils;
 import com.yutou.nas.utils.Tools;
 import org.springframework.stereotype.Controller;
-import org.springframework.util.StringUtils;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.ResponseBody;
 
 import javax.servlet.http.HttpServletRequest;
-import java.io.File;
 import java.io.IOException;
 
 @Controller
diff --git a/src/main/java/com/yutou/nas/NasApplication.java b/src/main/java/com/yutou/nas/NasApplication.java
index 072da37..b73ffcd 100644
--- a/src/main/java/com/yutou/nas/NasApplication.java
+++ b/src/main/java/com/yutou/nas/NasApplication.java
@@ -12,7 +12,7 @@ import org.springframework.context.annotation.Import;
 @Import(BTDownloadManager.class)
 @SpringBootApplication
 public class NasApplication {
-    public static final String version="1.1.5";
+    public static final String version="1.1.5.1";
     public static void main(String[] args) {
         SpringApplication.run(NasApplication.class, args);
         AppData.defaultMusicPath = (String) ConfigTools.load(ConfigTools.CONFIG, "musicDir");
diff --git a/src/main/java/com/yutou/nas/Services/impl/MusicToolsServiceImpl.java b/src/main/java/com/yutou/nas/Services/impl/MusicToolsServiceImpl.java
index a6f5b69..40767c0 100644
--- a/src/main/java/com/yutou/nas/Services/impl/MusicToolsServiceImpl.java
+++ b/src/main/java/com/yutou/nas/Services/impl/MusicToolsServiceImpl.java
@@ -22,7 +22,7 @@ import net.bramp.ffmpeg.probe.FFmpegFormat;
 import net.bramp.ffmpeg.probe.FFmpegProbeResult;
 import net.bramp.ffmpeg.probe.FFmpegStream;
 import org.springframework.stereotype.Service;
-import org.springframework.util.StringUtils;
+import com.yutou.nas.utils.StringUtils;
 
 import javax.annotation.Resource;
 import java.io.File;
diff --git a/src/main/java/com/yutou/nas/bangumi/AnimationController.java b/src/main/java/com/yutou/nas/bangumi/AnimationController.java
index 5894cfc..ecfa2b3 100644
--- a/src/main/java/com/yutou/nas/bangumi/AnimationController.java
+++ b/src/main/java/com/yutou/nas/bangumi/AnimationController.java
@@ -9,7 +9,7 @@ import com.yutou.nas.mybatis.model.BangumiItemExample;
 import com.yutou.nas.mybatis.model.BangumiList;
 import com.yutou.nas.mybatis.model.BangumiListExample;
 import org.springframework.stereotype.Controller;
-import org.springframework.util.StringUtils;
+import com.yutou.nas.utils.StringUtils;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.ResponseBody;
diff --git a/src/main/java/com/yutou/nas/bangumi/BangumiTools.java b/src/main/java/com/yutou/nas/bangumi/BangumiTools.java
index ad0971d..364551b 100644
--- a/src/main/java/com/yutou/nas/bangumi/BangumiTools.java
+++ b/src/main/java/com/yutou/nas/bangumi/BangumiTools.java
@@ -5,7 +5,7 @@ import com.alibaba.fastjson.JSONObject;
 import com.yutou.nas.utils.HttpTools;
 import com.yutou.nas.utils.RedisTools;
 import com.yutou.nas.utils.Tools;
-import org.springframework.util.StringUtils;
+import com.yutou.nas.utils.StringUtils;
 
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
diff --git a/src/main/java/com/yutou/nas/utils/BTDownloadManager.java b/src/main/java/com/yutou/nas/utils/BTDownloadManager.java
index b1b2c95..574426c 100644
--- a/src/main/java/com/yutou/nas/utils/BTDownloadManager.java
+++ b/src/main/java/com/yutou/nas/utils/BTDownloadManager.java
@@ -4,13 +4,11 @@ import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
 import com.yutou.nas.Services.IBangumiService;
 import com.yutou.nas.bangumi.AnimationData;
-import com.yutou.nas.interfaces.DownloadInterface;
 import com.yutou.nas.mybatis.model.BangumiItem;
 import org.jetbrains.annotations.NotNull;
 import org.springframework.beans.BeansException;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
-import org.springframework.util.StringUtils;
 
 import javax.annotation.Resource;
 import java.io.File;
diff --git a/src/main/java/com/yutou/nas/utils/DepotManager.java b/src/main/java/com/yutou/nas/utils/DepotManager.java
index 4e91ee2..7b004fd 100644
--- a/src/main/java/com/yutou/nas/utils/DepotManager.java
+++ b/src/main/java/com/yutou/nas/utils/DepotManager.java
@@ -3,7 +3,7 @@ package com.yutou.nas.utils;
 import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
 import com.yutou.nas.interfaces.DownloadInterface;
-import org.springframework.util.StringUtils;
+import com.yutou.nas.utils.StringUtils;
 
 import java.io.File;
 import java.io.FileNotFoundException;
diff --git a/src/main/java/com/yutou/nas/utils/HttpTools.java b/src/main/java/com/yutou/nas/utils/HttpTools.java
index 456acb6..4af0d06 100644
--- a/src/main/java/com/yutou/nas/utils/HttpTools.java
+++ b/src/main/java/com/yutou/nas/utils/HttpTools.java
@@ -3,7 +3,7 @@ package com.yutou.nas.utils;
 import com.alibaba.fastjson.JSONObject;
 import com.yutou.nas.interfaces.DownloadInterface;
 import com.yutou.nas.utils.Interfaces.NetworkInterface;
-import org.springframework.util.StringUtils;
+import com.yutou.nas.utils.StringUtils;
 
 import java.io.*;
 import java.net.HttpURLConnection;
diff --git a/src/main/java/com/yutou/nas/utils/IdeaTools.java b/src/main/java/com/yutou/nas/utils/IdeaTools.java
index 07aac77..c3d2394 100644
--- a/src/main/java/com/yutou/nas/utils/IdeaTools.java
+++ b/src/main/java/com/yutou/nas/utils/IdeaTools.java
@@ -1,6 +1,6 @@
 package com.yutou.nas.utils;
 
-import org.springframework.util.StringUtils;
+import com.yutou.nas.utils.StringUtils;
 
 import java.io.File;
 import java.io.IOException;
diff --git a/src/main/java/com/yutou/nas/utils/QQBotManager.java b/src/main/java/com/yutou/nas/utils/QQBotManager.java
index aa2ec31..87ab4e0 100644
--- a/src/main/java/com/yutou/nas/utils/QQBotManager.java
+++ b/src/main/java/com/yutou/nas/utils/QQBotManager.java
@@ -13,7 +13,7 @@ import net.mamoe.mirai.message.data.Image;
 import net.mamoe.mirai.message.data.MessageChainBuilder;
 import net.mamoe.mirai.utils.BotConfiguration;
 import net.mamoe.mirai.utils.ExternalResource;
-import org.springframework.util.StringUtils;
+import com.yutou.nas.utils.StringUtils;
 
 import java.io.File;
 import java.lang.reflect.Field;
diff --git a/src/main/java/com/yutou/nas/utils/StringUtils.java b/src/main/java/com/yutou/nas/utils/StringUtils.java
new file mode 100644
index 0000000..e54ca3c
--- /dev/null
+++ b/src/main/java/com/yutou/nas/utils/StringUtils.java
@@ -0,0 +1,7 @@
+package com.yutou.nas.utils;
+
+public class StringUtils {
+    public static boolean isEmpty(String str){
+        return str == null || str.trim().length() == 0;
+    }
+}
diff --git a/src/main/java/com/yutou/nas/utils/Tools.java b/src/main/java/com/yutou/nas/utils/Tools.java
index 0066bb1..ac54a5a 100644
--- a/src/main/java/com/yutou/nas/utils/Tools.java
+++ b/src/main/java/com/yutou/nas/utils/Tools.java
@@ -7,7 +7,7 @@ import org.springframework.core.io.FileSystemResource;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
-import org.springframework.util.StringUtils;
+import com.yutou.nas.utils.StringUtils;
 import org.springframework.web.multipart.MultipartFile;
 
 import javax.servlet.http.Cookie;