SSH项目web.xml配置

1、Spring上下文ApplicationContext.xml的加载：

注意：classpath:spring-countext.xml里面的:spring-countext.xml是你自己所创建的spring上下文

<context-param>
	<param-name>contextConfigLocation</param-name>
	<param-value>classpath:spring-countext.xml</param-value>
  </context-param>

2、 启动Web容器时，自动装配ApplicationContext.xml的配置信息：

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

3、整合Struts2

 <filter>
	    <filter-name>struts2</filter-name>
	    <filter-class>
	    org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter
	    </filter-class>
	</filter>
	<filter-mapping>
	    <filter-name>struts2</filter-name>
	    <url-pattern>*.action</url-pattern>
	</filter-mapping>

4、添加中文乱码过滤器：

 <!--3、添加过滤器  -->
	  <filter>
	    <filter-name>encodingFilter</filter-name>
	    <filter-class>
	        org.springframework.web.filter.CharacterEncodingFilter
	    </filter-class>
	    <async-supported>true</async-supported>
	    <init-param>
		 <param-name>encoding</param-name>
		 <param-value>UTF-8</param-value>
	    </init-param>
	</filter>
	<filter-mapping>
	    <filter-name>encodingFilter</filter-name>
	    <url-pattern>*.action</url-pattern>
	</filter-mapping>

5、其他配置：（一般不用）：

5-1 防止内存泄露、缓存清除监听器：

  <listener>
	<listener-class>
	    org.springframework.web.util.IntrospectorCleanupListener
	</listener-class>
     </listener>

5-2：用于支持3种Bean的作用域:request,session和globalSession

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

5-3：把session的关闭延迟到jsp页面显示之后，请配在struts2上面

 <filter>
	<filter-name>OpenSessionInView</filter-name>
	<filter-class>		org.springframework.orm.hibernate5.support.OpenSessionInViewFilter
	</filter-class>
     </filter>
     <filter-mapping>
	<filter-name>OpenSessionInView</filter-name>
	<url-pattern>/*</url-pattern>
     </filter-mapping>