UrlRewriteFilter run元素产生404，但元素在GAE / Java上工作正常 [英] UrlRewriteFilter run element produces 404 but to element works fine on GAE/Java

问题描述

我使用UrlRewriteFilter库来避免编写自己的url过滤器。

我很确定我已经正确设置了一些东西，因为当我在我的url中有这个重写xml时：

 < rule> 
< from> ^ / urlIWantToMap< / from> 
< to type =redirect> / WhereIWouldLikeItToGo< / to> 
< / rule> 
  

它似乎正常工作（如在 http：// localhost：8080 / urlIWantToMap 将我发送到预定位置）。请注意，我必须将servlet映射添加到我的web.xml中。

如果我试试这个，虽然...

 < rule> 
< from> ^ / urlIWantToMap< / from> 
< run class =mypackage.MyServletClassmethod =doGet/> 
< / rule> 
  

我得到一个http 404.我认为这是这里描述的同一种问题（即使我对作者所提供的解决方案/解决方案感到怀疑）：
$ b

http://greatwebguy.com/programming/java/urlrewritefilter-servlet-filter-problem-in-websphere-6105-and-greater /

如果对Web过滤器行为进行某种更改会阻止UrlRewriteFilter调用servlet，我可以看到发生这种情况。要么;或者我犯了一个明显的错误，我没有看到。

解决方案

当应用程序服务器启动时， ？

  INFO：org.tuckey.web.filters.urlrewrite.Run错误：在mypackage上找不到名为doGet的方法.MyServletClass 
  

即使您不这样做， public 方法doGet没有任何参数存在？在我的情况下，它受到保护，而当 http：// localhost：8080 / MyProject / rewrite-status 告诉我everthing是好的，我仍然有一个404。

我不得不创建一个封装方法来公开doGet并像这样配置urlrewrite.xml：

 < run class =my.wrappers.WrapperServletmethod =doGet（HttpServletRequest，HttpServletResponse）/> 
  

I'm using the UrlRewriteFilter library in order to avoid having to write my own url filter.

I'm pretty sure that I have things set up properly, because when I have this in my url rewrite xml:

    <rule>
      <from>^/urlIWantToMap</from>
      <to type="redirect">/WhereIWouldLikeItToGo</to>
    </rule>

It seems to work fine (as in, hitting http://localhost:8080/urlIWantToMap sends me to the intended location). Note that I had to add the servlet mapping to my web.xml.

If I try this though...

    <rule>
      <from>^/urlIWantToMap</from>
      <run class="mypackage.MyServletClass" method="doGet"/>
    </rule>

I get an http 404. I think it is the same kind of problem described here (even though I'm suspicious on the solution/resolution the author comes to):

http://greatwebguy.com/programming/java/urlrewritefilter-servlet-filter-problem-in-websphere-6105-and-greater/

I can see this happening if there were some kind of change to web filter behavior that would inhibit UrlRewriteFilter from calling into the servlet. Either that; or I'm making a blatant mistake I'm not seeing.

解决方案

Do you see something like this when the application server starts?

INFO: org.tuckey.web.filters.urlrewrite.Run ERROR: could not find method with the name doGet on mypackage.MyServletClass

Even if you don't, does a public method doGet exist without any parameters? In my case it was protected, and while http://localhost:8080/MyProject/rewrite-status told me everthing was fine, I still got a 404.

I had to create a wrapper method to make doGet public and configure urlrewrite.xml like this:

<run class="my.wrappers.WrapperServlet" method="doGet(HttpServletRequest, HttpServletResponse)" />

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