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There Is No Action Mapped For Namespace / And Action Name “YourActionName”

There Is No Action Mapped For Namespace / And Action Name “YourActionName”

 
 Problem
 
Many Struts 2 developers have claimed that they had configured the action class properly but a page not found error occurs when we try to access the action class and will get the following error message in the browser(If the developer mode is enabled).

 
** UPDATE: Struts 2 Complete tutorial now available here.
 

Struts has detected an unhandled exception:

Messages: 
There is no Action mapped for namespace / and action name "yourActionName". 

Stacktraces
There is no Action mapped for namespace / and action name "yourActionName". 
- [unknown location]

com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:178)
org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:61) ...

 

 

Solution

 
The above error message is saying that the action class is not available, it means you are did something wrong in your action class configuration, it may be a namespace error, just double check the name.

Here’s a working action class configuration in struts.xml file, may use for your reference.
 

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
 	<constant name="struts.devMode" value="true" />
	<package name="default" namespace="/" extends="struts-default">
 
		<action name="myAction" 
			class="com.Simplecode.action.myAction" >
			<result name="success">jsp/my.jsp</result>
		</action>
 
	</package>
</struts>

 

Assume the project root context is “Struts2“, so, you can access the above action via this URL –
http://localhost:8089/Struts2/myAction.action
 
And it will be better if you learn about Struts2 Namespace configuration to avoid this issue

About Mohaideen Jamil


I'm a Full stack developer of IT exp in J2EE, AngularJs, MicroServices, Docker, Spring (Boot, MVC, Cloud), Bluemix, DevOps. Follow me on Facebook or Google Plus. If you like my tutorials, consider making a donation to this charity, thanks.

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