Struts2中如何添加Servlet
以前Java开发都是Servlet的天下，如今是各种框架横行，遇到一个需要将以前的Servlet加入到现有的Struts2的环境中。
Google之后发现Stack Overflow真是个好东西,解决如下，只是简单配置下。
I assume you want to know how to use a servlet in conjunction with Struts2 when you have mapped everything to the Struts2 filter.
You can use the following in your struts.xml:
<constant name="struts.action.excludePattern" value="/YourServlet"/>
You can exclude multiple patterns by separating them with a comma, such as:
<constant name="struts.action.excludePattern" value="/YourServlet,/YourOtherServlet"/>
参考
Filter mapping for everthing to Struts2 besides one servlet?
Filters not working in Struts2
- 其实Struts2 的文档中有记载Static Content
Preventing Struts from Handling a Request
If there is a request that Struts is handling as an action, and you wish to make Struts ignore it, you can do so by specifying a comma separated list of regular expressions like:
<constant name="struts.action.excludePattern" value="/some/conent/.*?" />
These regular expression will be evaluated against the request's URI (HttpServletRequest.getRequestURI()), and if any of them matches, then Struts will not handle the request.
To evaluate each pattern Pattern class from JDK will be used, you can find more about what kind of pattern you can use in the Pattern class JavaDoc.
除了上面在Struts2 里面自带的方法
1. 在web.xml中配置需要请求的Servlet
<servlet-mapping>
<servlet-name>Authcode</servlet-name>
<url-pattern>/authcode.servlet</url-pattern>
</servlet-mapping>