关于Spring整合Hibernate的问题

我执行数据库操作的时候一直报出：org.springframework.dao.InvalidDataAccessApiUsageException: Write operations are not allowed in read-only mode (FlushMode.MANUAL): Turn your Session into FlushMode.COMMIT/AUTO or remove 'readOnly' marker from transaction definition.
这个错误。
applicationContext.xml:

<!-- 数据库配置 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
    <property name="driverClassName" value="com.mysql.jdbc.Driver" />
    <property name="url" value="jdbc:mysql://localhost/test" />
    <property name="username" value="root" />
    <property name="password" value="" />
</bean>

<!-- 会话工厂 -->
<bean id="sessionFactory"
    class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
    <property name="dataSource">
        <ref local="dataSource" />
    </property>
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">
                org.hibernate.dialect.MySQLDialect
            </prop>
            <prop key="hibernate.hbm2ddl.auto">update</prop>
            <prop key="show_sql">
                true
            </prop>
            <prop key="hbm2ddl.auto">
                update
            </prop>
            <prop key="current_session_context_class">
                thread
            </prop>
        </props>
    </property>

    <!-- 配置实体描述文件 -->
    <property name="mappingLocations">
        <list>
            <value>classpath:/com/sx/bean/*.hbm.xml</value>
        </list>
    </property>
</bean>

<!-- 配置事务管理器 -->
<bean id="transactionManager"
    class="org.springframework.orm.hibernate5.HibernateTransactionManager">
    <property name="sessionFactory" ref="sessionFactory" />
</bean>

<!-- 配置事务的传播特性 -->
<bean id="baseTransactionProxy"
    class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"
    abstract="true">
    <property name="transactionManager" ref="transactionManager" />
    <property name="transactionAttributes">
        <props>
            <prop key="save*">PROPAGATION_REQUIRED</prop>
            <prop key="delete*">PROPAGATION_REQUIRED</prop>
            <prop key="update*">PROPAGATION_REQUIRED</prop>
            <prop key="*">readOnly</prop>
        </props>
    </property>
</bean>

<bean id="hibernateTemplate" class="org.springframework.orm.hibernate5.HibernateTemplate">
    <property name="sessionFactory">
        <ref local="sessionFactory" />
    </property>
</bean>

UserDao下的save方法：

public boolean save(User user) {
    try
    {
        getHibernateTemplate().save(user);
    } catch (RuntimeException e)
    {
        System.out.println("UserDao >> save >> " + e);
        return false;
    }
    return true;
}

每次调用Dao方法都会报出上述那个错误，求救