ibatis get pk key after insert in mysql

<insert id="user.insertUserAndGetId" parameterClass="user">
    <![CDATA[
        INSERT INTO t
        (
            name
        )
        VALUES
        (
            #name#
        )
    ]]>
    <selectKey keyProperty="id" resultClass="Integer">
        SELECT LAST_INSERT_ID()
    </selectKey>
</insert>



UserVO user = new UserVO();
user.setName("Bob");

System.out.println("Index of user " + user.getName() + " is " + user.getId() + " (before insert)");
int id = ((Integer) sqlMap.insert("user.insertUserAndGetId")).intValue();
System.out.println("Index of user " + user.getName() + " is " + user.getId() + " (after insert)");