diff --git a/src/connector/jdbc/pom.xml b/src/connector/jdbc/pom.xml
index 97bcdbb38c08439b88002fb671d79069320e3739..9865fc7127b39debc965f6be9bad6e8485169416 100755
--- a/src/connector/jdbc/pom.xml
+++ b/src/connector/jdbc/pom.xml
@@ -79,6 +79,12 @@
             <version>1.2.58</version>
         </dependency>
 
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>5.1.49</version>
+        </dependency>
+
     </dependencies>
 
     <build>
diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulConnection.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulConnection.java
index ed77847484cc363cf0fd9ce7a313364d75043d9a..5260b780bd510edad6ef8ea9a481fa334cca50f6 100644
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulConnection.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulConnection.java
@@ -411,7 +411,6 @@ public class RestfulConnection implements Connection {
     public void setSchema(String schema) throws SQLException {
         if (isClosed())
             throw new SQLException(CONNECTION_IS_CLOSED);
-
         synchronized (RestfulConnection.class) {
             this.database = schema;
         }