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This tutorial assumes you've completed the Using Struts 2 Tags tutorial and have a working using_tags project. The example code for this tutorial, coding_action, is available for checkout from the Struts 2 sandbox subversion repository: https://svn.apache.org/repos/asf/struts/sandbox/trunk/struts2examples^{Image Removed}.

Introduction

...

In the previous tutorials we covered how to configure Struts to map a URL such as hello.action to a Action class such as HelloWorldAction (specifically the execute method).

xml

Code Block

	xml
title	Action Mapping
	xml


<action name="hello" class="org.apache.struts.helloworld.action.HelloWorldAction" method="execute">
	<result name="success">/HelloWorld.jsp</result>
</action>

...

In method execute is where we placed what we want this controller to do in response to the hello.action.

Code Block

	java	java
title	Method execute of HelloWorldAction
	java


public String execute() throws Exception {
		
	messageStore = new MessageStore() ;
		
	helloCount++;
		
	return SUCCESS;

}

...

In the Using Struts 2 Tags example application we added a Struts 2 form to index.jsp.

Code Block

	html	html
title	Struts 2 Form Tags
	html


<s:form action="hello">

	<s:textfield name="userName" label="Your name" />
	
	<s:submit value="Submit" />

</s:form>

...

For the example application associated with this tutorial add the following Java code to class HelloWorldAction.

Code Block

	java	java
title	Add userName to HelloWorldAction
	java


	private String userName;

	public String getUserName() {
		return userName;
	}

	public void setUserName(String userName) {
		this.userName = userName;
	}

To personalize the MessageStore message (recall that class MessageStore is storing the message to display) add the following Java code to the HelloWorldAction's execute method after the statement that instantiates the MessageStore object.

Code Block

	java	java
title	Add userName value to message
	java


if (userName != null) {
			
	messageStore.setMessage( messageStore.getMessage() + " " + userName);
			
}

...

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Introduction