怎么配置才能使struts中的*do 映射 去掉 .do ，直接用没有后缀名的映射

怎样配置才能使struts中的*.do 映射 去掉 .do ，直接用没有后缀名的映射
1.一直想用struts弄成没有后缀名的请求，跟javaeye的一样，今天看了下struts的源代码，发现
它截取的是最后一个/和最后一个.之间的字符串当做struts-config.xml里配的action。如：

 <servlet-mapping>
    <servlet-name>action</servlet-name>
    <!--  
    <url-pattern>/usermgr/*</url-pattern>
    -->
    <url-pattern>/</url-pattern>
  </servlet-mapping>

其实写一个

public class LoginAction extends Action

继承action，
主要是ActionServlet,阅读它的源代码可以看到它主要一直调用的是RequestProcessor类，这个类会调用你写的action的里的execute()方法。这就是继承的妙用，覆盖方法，它会直接调用子类的方法。
2.那么我们要做的就是覆盖RequestProcessor这个类，并配置到struts-config.xml

	 <!--用于定义RequestProcessor类它截取URI最后一个/后面的字符串，就当做action
	 -->
	<controller processorClass="com.bjsxt.usermgr.controller.allController">
	</controller>

public class allController extends RequestProcessor{

	@Override
	protected String processPath(HttpServletRequest request,
			HttpServletResponse response) throws IOException {
		// TODO Auto-generated method stub
		 String path;

     // Set per request the original path for postback forms
     if (request.getAttribute(Globals.ORIGINAL_URI_KEY) == null) {
         request.setAttribute(Globals.ORIGINAL_URI_KEY, request.getServletPath());
     }

     // For prefix matching, match on the path info (if any)
     path = (String) request.getAttribute(INCLUDE_PATH_INFO);

     if (path == null) {
         path = request.getPathInfo();
     }

     if ((path != null) && (path.length() > 0)) {
         return (path);
     }

     // For extension matching, strip the module prefix and extension
     path = (String) request.getAttribute(INCLUDE_SERVLET_PATH);

     if (path == null) {
         path = request.getServletPath();
     }

     String prefix = moduleConfig.getPrefix();

     if (!path.startsWith(prefix)) {
         String msg = getInternal().getMessage("processPath");

         log.error(msg + " " + request.getRequestURI());
         response.sendError(HttpServletResponse.SC_BAD_REQUEST, msg);

         return null;
     }

     path = path.substring(prefix.length());

     int slash = path.lastIndexOf("/");
     //int period = path.lastIndexOf(".");


     path = path.substring(0);
System.out.println(path);

     return (path);
	}
	
}
{

这样的话，actionServlet就会调用allController 对象，并会调用processPath();
这个方法就是截取action的，源代码是这样写的：

    protected String processPath(HttpServletRequest request,
        HttpServletResponse response)
        throws IOException {
        String path;

        // Set per request the original path for postback forms
        if (request.getAttribute(Globals.ORIGINAL_URI_KEY) == null) {
            request.setAttribute(Globals.ORIGINAL_URI_KEY, request.getServletPath());
        }

        // For prefix matching, match on the path info (if any)
        path = (String) request.getAttribute(INCLUDE_PATH_INFO);

        if (path == null) {
            path = request.getPathInfo();
        }

        if ((path != null) && (path.length() > 0)) {
            return (path);
        }

        // For extension matching, strip the module prefix and extension
        path = (String) request.getAttribute(INCLUDE_SERVLET_PATH);

        if (path == null) {
            path = request.getServletPath();
        }

        String prefix = moduleConfig.getPrefix();

        if (!path.startsWith(prefix)) {
            String msg = getInternal().getMessage("processPath");

            log.error(msg + " " + request.getRequestURI());
            response.sendError(HttpServletResponse.SC_BAD_REQUEST, msg);

            return null;
        }

        path = path.substring(prefix.length());

        int slash = path.lastIndexOf("/");
        int period = path.lastIndexOf(".");

        if ((period >= 0) && (period > slash)) {
            path = path.substring(0, period);
        }

        return (path);
    }

从最后几行可以看到是截取最后一个/和.之间的部分作为action，所以web.xml的urlpattern如果配置成/的话，比方说你的uri是http://localhost:8080/springStudy15/login.hhhhhhhhh
它照样可以访问到login 这个action，
所以覆盖这个方法，只截取/后面的东西。这样就成了~，哈哈~，真有成就感！，虽然还没找到工作~，哎~悲惨~