Unable to get Struts2 Hello World to work using Eclipse and Maven

by

If you follow the tutorial, which is linked to the page Struts 2 Hello World Example, and done everything till p. 7 then you should Run it as is written

In Struts2, you can access the action class directly with a suffix of
.action.

http://localhost:8080/Struts2Example/User/Login.action

If you tried to access application as

http://localhost:8080/Struts2Example

you will get a message and 404 error code is returned to the browser.

WARNING: Could not find action or result There is no Action mapped for
namespace [/] and action name [] associated with context path
[/Struts2Example]. – [unknown location]

The workaround is to add the file to the web root folder that will redirect a browser to the correct location.

index.html:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
    <META HTTP-EQUIV="Refresh" CONTENT="0;URL=User/Login.action">
</head>

<body>
<p>Loading ...</p>
</body>
</html>

Also modify web application deployment descriptor to include this file name to the welcome files list.

web.xml:

<welcome-file-list>
    <welcome-file>index.html</welcome-file>
</welcome-file-list>

That’s it, if you are looking for the Hello World tutorial, you should use these references:

Create Struts 2 Web Application Using Maven To Manage Artifacts and To Build The Application

More Related Contents:

  1. Struts 2 : There is no Action mapped for namespace [/]
  2. Passing parameters to action through ModelDriven in Struts 2
  3. How can I set the welcome page to a struts action?
  4. Struts2 jQuery plugin java.lang.ClassNotFoundException: org.apache.struts2.views.TagLibrary
  5. Struts Web Application: Reusable Validation Client-Side & Server-Side
  6. What’s the difference between # , % and $ signs in Struts tags?
  7. Should I retrieve database record in Struts2 view layer?
  8. Is there a way to redirect to another Action class without using on struts.xml
  9. Struts 2 dynamic variables
  10. Unable to implement Struts 2 token interceptor with hyperlink
  11. Upload multiple files in Struts2 with Dropzone.js
  12. Struts 2 select tag with values of a array list
  13. Dispatcher initialization failed. java.lang.ClassNotFoundException: org.apache.struts2.views.gxp.inject.InjectedObjectContainer
  14. Populating one select menu based on another select menu using AJAX in Struts2
  15. Avoid duplicate submission of Struts 2 jsp page
  16. Show JDBC ResultSet in HTML in JSP page using MVC and DAO pattern
  17. Design Patterns web based applications [closed]
  18. What causes “java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name ‘command’ available as request attribute”?
  19. How to specify the default error page in web.xml?
  20. Exception starting filter struts2 – tried adding JAR’s, but same result
  21. How do I get whole and fractional parts from double in JSP/Java?
  22. How to change Java version used by TOMCAT?
  23. How to upload files on server folder using jsp [duplicate]
  24. Get windows username using JAVA or JSP [closed]
  25. Pass Hidden parameters using response.sendRedirect()
  26. Whitelist security constraint in web.xml
  27. What is the lifecycle of a HttpServlet?
  28. calling java method in javascript [closed]
  29. JSP: EL expression is not evaluated [duplicate]
  30. Where are the generated JSP class files located?

Leave a Comment