OpenSessionInViewFilter

OpenSessionInViewFilter

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使用Spring 3和Servlet 3配置OpenSessionInViewFilter

本文介绍了使用Spring 3和Servlet 3配置OpenSessionInViewFilter的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我想配置 OpenSessionInViewFilter 能够在视图中使用hibernate惰性初始化，所以我在web.xml中添加了过滤器定义，但它仍然不起作用

 <？xml version =1.0encoding =UTF- 8\" >？; 
 
< web-app xmlns =http://java.sun.com/xml/ns/javaee
 xmlns：xsi =http://www.w3.org / 2001 / XMLSchema-instance
 xsi：schemaLocation =http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0 .xsd
 version =3.0> 
 
< display-name> MyApp< / display-name> 
 
< listener> 
< listener-class> 
 org.springframework.web.context.ContextLoaderListener 
< / listener-class> 
< / listener> 
 
< listener> 
< listener-class> 
 org.springframework.web.context.request.RequestContextListener 
< / listener-class> 
< / listener> 
 
< context-param> 
< param-name> contextConfigLocation< / param-name> 
< param-value> 
 classpath：META-INF / spring / applicationContext.xml 
 classpath：META-INF / spring / applicationSecurity.xml 
< / param-value> 
 
< / context-param> 
 
< context-param> 
< param-name> javax.faces.FACELETS_LIBRARIES< / param-name> 
< param-value> /WEB-INF/springsecurity.taglib.xml< / param-value> 
< / context-param> 
 
 
< context-param> 
< param-name> javax.faces.PROJECT_STAGE< / param-name> 
<参数值>开发< /参数值> 
< / context-param> 
 
< welcome-file-list> 
< welcome-file> /< / welcome-file> 
< / welcome-file-list> 
 
< context-param> 
< description>状态保存方法：'client'或'server'（= default）。请参阅JSF规范2.5.2< / description> 
< param-name> javax.faces.STATE_SAVING_METHOD< / param-name> 
< param-value>服务器< /参数值> 
< / context-param> 
 
< context-param> 
< param-name> javax.servlet.jsp.jstl.fmt.localizationContext< / param-name> 
< param-value> resources.application< / param-value> 
< / context-param> 
 
 
< listener> 
< listener-class> com.sun.faces.config.ConfigureListener< / listener-class> 
< / listener> 
 
< context-param> 
< param-name> javax.faces.FACELETS_SKIP_COMMENTS< / param-name> 
< param-value> true< /参数值> 
< / context-param> 
 
 
< filter> 
< filter-name> springSecurityFilterChain< / filter-name> 
< filter-class> 
 org.springframework.web.filter.DelegatingFilterProxy 
< / filter-class> 
< / filter> 
 
< filter-mapping> 
< filter-name> springSecurityFilterChain< / filter-name> 
< url-pattern> / *< / url-pattern> 
< dispatcher> FORWARD< / dispatcher> 
< dispatcher> REQUEST< / dispatcher> 
< dispatcher> ERROR< / dispatcher> 
< / filter-mapping> 
 
 
< filter> 
< filter-name>漂亮过滤器< /过滤器名称> 
< filter-class> com.ocpsoft.pretty.PrettyFilter< / filter-class> 
< init-param> 
< param-name> logLevel< / param-name> 
<参数值>错误< /参数值> 
< / init-param> 
< / filter> 
 
< filter-mapping> 
< filter-name>漂亮过滤器< /过滤器名称> 
< url-pattern> / *< / url-pattern> 
< dispatcher> FORWARD< / dispatcher> 
< dispatcher> REQUEST< / dispatcher> 
< dispatcher> ERROR< / dispatcher> 
< / filter-mapping> 
 
< filter> 
< filter-name> hibernateFilter< / filter-name> 
< filter-class> org.springframework.orm.hibernate3.support.OpenSessionInViewFilter< / filter-class> 
< init-param> 
< param-name> sessionFactoryBeanName< / param-name> 
< param-value> sessionFactory< / param-value> 
< / init-param> 
< / filter> 
 
< filter-mapping> 
< filter-name> hibernateFilter< / filter-name> 
< url-pattern> / *< / url-pattern> 
< / filter-mapping> 
 
 
 
< servlet> 
< servlet-name>资源Servlet< / servlet-name> 
< servlet-class> com.icesoft.faces.webapp.CompatResourceServlet< / servlet-class> 
  1< / load-on-startup> 
< / servlet> 
 
< servlet-mapping> 
< servlet-name>资源Servlet< / servlet-name> 
< url-pattern> / xmlhttp / *< / url-pattern> 
< / servlet-mapping> 
 
< servlet> 
< servlet-name> Faces Servlet< / servlet-name> 
< servlet-class> javax.faces.webapp.FacesServlet< / servlet-class> 
  1< / load-on-startup> 
< / servlet> 
 
< servlet-mapping> 
< servlet-name> Faces Servlet< / servlet-name> 
< url-pattern> / faces / *< / url-pattern> 
< / servlet-mapping> 
 
< / web-app>

applicationContext： 

 < bean id =sessionFactory
 class =org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean> 
 
< property name =dataSourceref =dataSource/> 
< property name =packagesToScanvalue =$ {project.groupId} .domain/> 
 
 
 < property name =hibernateProperties> 
<值> 
  hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect 
 hibernate.hbm2ddl.auto = create-drop 
 hibernate.show_sql = true 
 hibernate.format_sql = true 
 < /值GT; 
< / property> 
 
< / bean>

请告诉我为什么我的仍然获得延迟初始化异常，谢谢前进。

解决方案

看起来，过滤器链的构建顺序取决于过滤器映射元素出现的顺序。
$ b 换句话说，尝试在其他过滤器映射之前放置OpenSessionInViewFilter的过滤器映射。



好祝你好运


i want to configure OpenSessionInViewFilter to able to use hibernate lazy initialization in view, so i added the filter definition in web.xml, but it doesn't work i still get the same lazy initialization exception, here's what i did:

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
      version="3.0">

  <display-name>MyApp</display-name>

  <listener>
    <listener-class>
        org.springframework.web.context.ContextLoaderListener
    </listener-class>
  </listener>

  <listener>
    <listener-class>
        org.springframework.web.context.request.RequestContextListener
    </listener-class>
  </listener>

  <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
        classpath:META-INF/spring/applicationContext.xml
        classpath:META-INF/spring/applicationSecurity.xml
        </param-value>

  </context-param>

  <context-param>
    <param-name>javax.faces.FACELETS_LIBRARIES</param-name>
    <param-value>/WEB-INF/springsecurity.taglib.xml</param-value>
  </context-param>


  <context-param>
    <param-name>javax.faces.PROJECT_STAGE</param-name>
    <param-value>Development</param-value>
  </context-param>

  <welcome-file-list>
    <welcome-file>/</welcome-file>
  </welcome-file-list>

  <context-param>
    <description>State saving method: 'client' or 'server' (=default). See JSF Specification 2.5.2</description>
    <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
    <param-value>server</param-value>
  </context-param>

  <context-param>
    <param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
    <param-value>resources.application</param-value>
  </context-param>


  <listener>
    <listener-class>com.sun.faces.config.ConfigureListener</listener-class>
  </listener>

  <context-param>
    <param-name>javax.faces.FACELETS_SKIP_COMMENTS</param-name>
    <param-value>true</param-value>
  </context-param>


    <filter>
        <filter-name>springSecurityFilterChain</filter-name>
        <filter-class>
            org.springframework.web.filter.DelegatingFilterProxy
        </filter-class>
    </filter>

    <filter-mapping>
        <filter-name>springSecurityFilterChain</filter-name>
        <url-pattern>/*</url-pattern>
        <dispatcher>FORWARD</dispatcher>
        <dispatcher>REQUEST</dispatcher>
        <dispatcher>ERROR</dispatcher>
    </filter-mapping>


    <filter>
      <filter-name>Pretty Filter</filter-name>
      <filter-class>com.ocpsoft.pretty.PrettyFilter</filter-class>
      <init-param>
            <param-name>logLevel</param-name>
            <param-value>ERROR</param-value>
      </init-param>
    </filter>

    <filter-mapping>
    <filter-name>Pretty Filter</filter-name>
      <url-pattern>/*</url-pattern>
      <dispatcher>FORWARD</dispatcher>
      <dispatcher>REQUEST</dispatcher>
      <dispatcher>ERROR</dispatcher>
    </filter-mapping>

    <filter>
      <filter-name>hibernateFilter</filter-name>
      <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
      <init-param>
         <param-name>sessionFactoryBeanName</param-name>
         <param-value>sessionFactory</param-value>
      </init-param>
   </filter>

   <filter-mapping>
     <filter-name>hibernateFilter</filter-name>
     <url-pattern>/*</url-pattern>
   </filter-mapping>



  <servlet>
    <servlet-name>Resource Servlet</servlet-name>
    <servlet-class>com.icesoft.faces.webapp.CompatResourceServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>Resource Servlet</servlet-name>
    <url-pattern>/xmlhttp/*</url-pattern>
  </servlet-mapping>

  <servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>/faces/*</url-pattern>
  </servlet-mapping>

</web-app>

applicationContext:

<bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">

        <property name="dataSource" ref="dataSource" />
        <property name="packagesToScan" value="${project.groupId}.domain" />


        <!-- control the behavior of Hibernate at runtime,All are optional and have reasonable default values -->
        <property name="hibernateProperties">
            <value>
            <!-- hibernate.dialect: allows Hibernate to generate SQL optimized for a particular relational database -->
                hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
                hibernate.hbm2ddl.auto=create-drop
                hibernate.show_sql=true
                hibernate.format_sql=true
            </value>
        </property>

    </bean>

please advise why i am still getting the lazy initialization exception, thanks in advance.

解决方案

It seems that the order in which the filter chain is constructed depends on the order that the filter-mapping elements appear.

In other words, try putting filter-mapping of OpenSessionInViewFilter before any other filter-mapping.

Good luck with that

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07-02 17:09
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