pagehelper的分页不起效果

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource"/>
    <property name="mapperLocations" value="classpath*:mappers/*Mapper.xml">property>
    
    <property name="plugins">
        <array>
            <bean class="com.github.pagehelper.PageHelper">
                <property name="properties">
                    <value>
                        dialect=mysql
                    value>
                property>
            bean>
        array>
    property>

bean>

mybatis 版本不能低于3.2