页面jstl标签的<c:forEach > 不能循环出任何值 当把下面这段注释掉之后才能循环出列表值
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.jsp</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
</filter-mapping>
可是注释这段代码之后直接访问含有struts2标签的jsp页面会报错,经过action跳转到含有struts2标签的jsp页面才不报错WEB.XML中的struts2配置:
<!-- 配置Struts2 -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
<init-param>
<param-name>actionPackages</param-name>
<param-value>com.dianxue.action.admin</param-value>
</init-param>
</filter> <filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.jsp</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
</filter-mapping> <filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.action</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
</filter-mapping>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.jsp</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
</filter-mapping>
可是注释这段代码之后直接访问含有struts2标签的jsp页面会报错,经过action跳转到含有struts2标签的jsp页面才不报错WEB.XML中的struts2配置:
<!-- 配置Struts2 -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
<init-param>
<param-name>actionPackages</param-name>
<param-value>com.dianxue.action.admin</param-value>
</init-param>
</filter> <filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.jsp</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
</filter-mapping> <filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.action</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
</filter-mapping>
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<filter-name>struts2</filter-name>
<url-pattern>*.jsp</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
</filter-mapping>我很佩服你的勇气,我也只是想想而已,你居然真的这么配置了。这么配置肯定会出问题的
*.jsp 是webxml的默认配置 请楼主注意