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From "Dan Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (WW-3564) Unable to find a result type for extension
Date Thu, 05 May 2011 01:54:03 GMT

    [ https://issues.apache.org/jira/browse/WW-3564?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13029100#comment-13029100
] 

Dan Du commented on WW-3564:
----------------------------

To Johannes Geppert:

1.) Why is this Issue a Blocker? 

Not all backup files ended with "bak" will cause a blocker.
Only path start with the same prefix: 
==================================================== 
path.startsWith(resultPrefix) 
====================================================

for example,if a directory contains two jsp files:
/WEB-INF/jsp/search.jsp
/WEB-INF/jsp/search.jsp.bak

An exception will be thrown,it's a blocker.Below is stack message:
"Unable to find a result type for extension"

2.) Yes, you are right.

> Unable to find a result type for extension
> ------------------------------------------
>
>                 Key: WW-3564
>                 URL: https://issues.apache.org/jira/browse/WW-3564
>             Project: Struts 2
>          Issue Type: Bug
>          Components: Plugin - Convention
>    Affects Versions: 2.2.1
>         Environment: windows xp, spring 2.5, tomcat 5.0.28, struts2-convention-plugin-2.2.1.jar
>            Reporter: Dan Du
>            Assignee: Maurizio Cucchiara
>            Priority: Minor
>         Attachments: 1.jpg, 11.jpg, 2.jpg, DefaultResultMapBuilder.java
>
>
> I set a convention constant like this below:
> ==========================================================================================
> <constant name="struts.convention.result.path" value="/WEB-INF/jsp" />
> ==========================================================================================
> After I deployed my project to tomcat server, I backup a file "search.jsp" and named
the backup file with "search.jsp.bak", There is a class named with "SearchAction"。The action's
search method is annotated by @Action, like this:
> ==========================================================================================
> @Action(value = "search", results = { @Result(name = "search", location = "/WEB-INF/jsp/search.jsp")
})
> ==========================================================================================
> When I startup tomcat server, I recieved some message:
> ==========================================================================================
> Unable to find a result type for extension [bak] in location attribute [/WEB-INF/jsp/search.jsp.bak].
- [unknown location]
> ==========================================================================================
> Then I checked org.apache.struts2.convention.DefaultResultMapBuilder.java, I found this
exception throwing at line 527。
> I debug that snippet, At line 269, I found some problems,ServletContext.getResourcePaths()
method will scan a directory and its sub-directory and return all files in these directories,
If a file's extension is not jsp, jspx,vm,ftl,html or htm。 I would get the error。 
> So I think this code need to be change to fix this problem。

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