hibernate4 could not initialize proxy

在编写hibernate4的相关代码的时候，出现异常 org.hibernate.LazyInitializationException: could not initialize proxy - no Session 网上出现最多的解决方案是 openSessionInViewFilter

<!-- open session filter -->
<filter>
<filter-name>openSessionInViewFilter</filter-name>
<filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class><init-param><param-name>singleSession</param-name><param-value>true</param-value></init-param>
<init-param>
<param-name>sessionFactoryBeanName</param-name>
<param-value>sessionFactory</param-value>
</init-param>
</filter>

同时，也参与配置了另外一个参数：
在stackoverflow 上面找到一篇介绍使用了 hibernate.enable_lazy_load_no_trans 的处理，配置后解决了错误:

<bean id="sessionFactory"class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"><property name="dataSource" ref="dataSource" /><property name="packagesToScan"><list><value>com.alexgaoyh</value></list></property><property name="hibernateProperties"><props><prop key="javax.persistence.validation.mode">none</prop><prop key="hibernate.dialect">${hibernate.dialect}</prop><prop key="hibernate.show_sql">${hibernate.show_sql}</prop><prop key="hibernate.format_sql">true</prop><prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop><prop key="hibernate.query.substitutions">${hibernate.query.substitutions}</prop><prop key="hibernate.default_batch_fetch_size">${hibernate.default_batch_fetch_size}</prop><prop key="hibernate.max_fetch_depth">${hibernate.max_fetch_depth}</prop><prop key="hibernate.generate_statistics">${hibernate.generate_statistics}</prop><prop key="hibernate.bytecode.use_reflection_optimizer">${hibernate.bytecode.use_reflection_optimizer}</prop><prop key="hibernate.enable_lazy_load_no_trans">true</prop></props></property></bean>

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