Re: Struts examples Hello World

niedz., 14 kwi 2024 o 20:56 Tim Mousaw <[email protected]> napisał(a):
>
> I started to go through the Getting Started examples at
> https://struts.apache.org/getting-started/index.html. I downloaded all the
> examples from https://github.com/apache/struts-examples. I would expect
> that I should be able to run `mvn jetty:run` from any of the examples,
> follow the appropriate link, and it should work as in the corresponding
> tutorial. However, this breaks down very quickly as when I try to run that
> for the `helloworld` example, I get the following error in my web browser
> when going to the link http://localhost:8080/helloworld/index.action:
> HTTP ERROR 404 Not Found
> URI: /helloworld/index.action
> STATUS: 404
> MESSAGE: Not Found
> SERVLET: default
> ------------------------------
> Powered by Jetty:// 9.4.46.v20220331 <https://eclipse.org/jetty>
>
> With debug logging enabled, navigating to
> localhost:8080/helloworld/index.action spits the following two lines of
> output to the console:
> 2024-04-14 14:44:44,340 DEBUG [qtp273531298-62] config.ConfigurationManager
> (ConfigurationManager.java:180) - Checking ConfigurationProviders for
> reload.
> 2024-04-14 14:44:44,343 DEBUG [qtp273531298-62]
> impl.InstantiatingNullHandler (InstantiatingNullHandler.java:98) - Entering
> nullPropertyValue
> [target=[com.opensymphony.xwork2.DefaultTextProvider@6dbebaa7],
> property=struts]
>
> If I remove the line "<constant name="struts.action.extension" value=","/>"
> from struts.xml, then the example seems to work. It gets the same two lines
> of output to the console followed by:

You are right, by removing this constant you make Struts to fallback
to default configuration [1] which supports both .action and no suffix
in the url

[1] https://github.com/apache/struts/blob/master/core/src/main/resources/org/apache/struts2/default.properties#L87

> 2024-04-14 14:51:46,765 DEBUG [qtp273531298-50] xwork2.DefaultActionProxy
> (DefaultActionProxy.java:85) - Creating an DefaultActionProxy for namespace
> [/] and action name [index]
>
> As well as a bunch of other logging after that before the page renders.
> From searching for this configuration, I think the intention of this line
> is to remove the `.action` suffix from the action (e.g. the link in the web
> browser displays localhost:8080/helloworld/index rather than
> http://localhost:8080/helloworld/index.action). So, I'm curious what I have
> configured wrong that doesn't allow this to work. I'm using Java 21
> (Corretto). Let me know if there are other dependencies that you need to
> know the version of.

As you notice what was documented on the page doesn't match the
example Hello World application. So either you can prepare a PR fixing
the documentation or the example app.


Cheers
Lukasz