//删除指定记录
    @Test
    public void deleteUser(){
        //创建sqlsession,执行sql
        SqlSession session = ssf.openSession(true);
        User user=new User();
        user.setName("张三");
        session.delete("userns.deleteUser", user);
        session.close();
    }

注意，parameterType可以不写

<delete id="deleteUser" parameterType="pojo.User">
        delete from user where name=#{name}
    </delete>

如下

    <delete id="deleteUser">
        delete from user where name=#{name}
    </delete>

运行的效果是一样的