hibernate 延迟加载问题

Question

javaweb中启用hibernate的延迟加载，读取没问题，但是删除无效，估计修改也是无效。没报错信息，如果取消这个OpenSessionInViewFilter就可以删除。但是失去了懒加载的能力。怎么延迟加载同时让删除有效

public void delById(Class clazz, Serializable id) {
        hibernateTemplate.delete(hibernateTemplate.load(clazz, id));
    }

<filter>  
       <filter-name>OpenSessionInViewFilter</filter-name>  
    <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>  
    <init-param>
    <param-name>singleSession</param-name>
    <param-value>true</param-value>
  </init-param>
  <init-param>
    <param-name>flushMode</param-name>
    <param-value>AUTO</param-value>
  </init-param>
    </filter>  
    <filter-mapping>  
       <filter-name>OpenSessionInViewFilter</filter-name>  
       <url-pattern>/*</url-pattern>  
    </filter-mapping>