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>
