我需要帮助弄清楚为什么我的过滤器以这种方式链接 *.jsf 请求:
过滤器1->过滤器3->过滤器2
这样的 *.jsp 请求(所需的链):
过滤器1->过滤器2->过滤器3
<filter>
<display-name>filter1</display-name>
<filter-name>filter1</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter>
<display-name>filter2</display-name>
<filter-name>filter2</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter>
<display-name>filter3</display-name>
<filter-name>filter3</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>filter1</filter-name>
<url-pattern>*.jsf</url-pattern>
<url-pattern>*.jsp</url-pattern>
<dispatcher>REQUEST</dispatcher>
</filter-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<filter-mapping>
<filter-name>filter2</filter-name>
<servlet-name>Faces Servlet</servlet-name>
<dispatcher>FORWARD</dispatcher>
<dispatcher>INCLUDE</dispatcher>
<dispatcher>REQUEST</dispatcher>
<dispatcher>ERROR</dispatcher>
</filter-mapping>
<filter-mapping>
<filter-name>filter2</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>filter3</filter-name>
<url-pattern>*.jsp</url-pattern>
<url-pattern>*.jsf</url-pattern>
<dispatcher>REQUEST</dispatcher>
</filter-mapping>
最佳答案
最初的问题是由过滤器优先于 Faces servlet 引起的。尽管filter2 是一个过滤器,但它也与Faces Servlet 关联,因此在所有其他过滤器之后执行。为了解决这个问题,我将 Faces Servlet 与链中的最后一个过滤器 filter3 相关联。
通过以下映射,.jsp 和 .jsf 现在都按所需顺序执行:filter1->filter2->filter3
<filter-mapping>
<filter-name>filter1</filter-name>
<url-pattern>*.jsf</url-pattern>
<url-pattern>*.jsp</url-pattern>
<dispatcher>REQUEST</dispatcher>
</filter-mapping>
<filter-mapping>
<filter-name>filter2</filter-name>
<url-pattern>*.jsp</url-pattern>
<url-pattern>*.jsf</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>filter3</filter-name>
<url-pattern>*.jsp</url-pattern> <!-- only .jsp since .jsf will be picked up by faces servlet/filter combo -->
<dispatcher>REQUEST</dispatcher>
</filter-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<filter-mapping> <!-- this gets picked up last because of filter vs. servlet precedence, not because of position in web.xml -->
<filter-name>filter3</filter-name>
<servlet-name>Faces Servlet</servlet-name>
<dispatcher>FORWARD</dispatcher>
<dispatcher>INCLUDE</dispatcher>
<dispatcher>REQUEST</dispatcher>
<dispatcher>ERROR</dispatcher>
</filter-mapping>
关于java - web.xml 过滤器链序列,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/23141776/