diff --git a/src/main/java/com/yn/bftl/thirdparty/modules/chinaums/util/ByxChinaumsUtil.java b/src/main/java/com/yn/bftl/thirdparty/modules/chinaums/util/ByxChinaumsUtil.java
index 745ba8d..dd43f4e 100644
--- a/src/main/java/com/yn/bftl/thirdparty/modules/chinaums/util/ByxChinaumsUtil.java
+++ b/src/main/java/com/yn/bftl/thirdparty/modules/chinaums/util/ByxChinaumsUtil.java
@@ -17,10 +17,8 @@
 import org.springframework.stereotype.Component;
 import org.springframework.transaction.annotation.Propagation;
 import org.springframework.transaction.annotation.Transactional;
-import org.springframework.util.DigestUtils;
 
 import javax.annotation.Resource;
-import java.io.File;
 import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
 import java.security.PrivateKey;