diff --git a/dbswitch-dbwriter/src/main/java/com/gitee/dbswitch/dbwriter/AbstractDatabaseWriter.java b/dbswitch-dbwriter/src/main/java/com/gitee/dbswitch/dbwriter/AbstractDatabaseWriter.java
index 332b5d06..9570026e 100644
--- a/dbswitch-dbwriter/src/main/java/com/gitee/dbswitch/dbwriter/AbstractDatabaseWriter.java
+++ b/dbswitch-dbwriter/src/main/java/com/gitee/dbswitch/dbwriter/AbstractDatabaseWriter.java
@@ -13,7 +13,6 @@ import java.sql.Connection;
 import java.sql.ResultSet;
 import java.sql.ResultSetMetaData;
 import java.sql.Statement;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;