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Action Tag (Data Tag) Example

                         

In this section, we are going to describe the action tag. The action tag is a generic tag that is used to call actions directly from a JSP page by specifying the action name and an optional namespace. The body content of the tag is used to render the results from the Action. Any result processor defined for this action in struts.xml will be ignored, unless the executeResult parameter is specified.

Add the following code snippet into the struts.xml file.

struts.xml

<action name="actionTag" class="net.roseindia.actionTag">
       <result name="success">/pages/genericTags/success.jsp</result>
</action>

Create an action class as shown below:

actionTag.java

package net.roseindia;
import com.opensymphony.xwork2.ActionSupport;

public class actionTag extends ActionSupport {
  public String execute() throws Exception{
    return SUCCESS;
  }
}

Now create a jsp page using <s:action> tag as shown in the success.jsp page. The action tag  is used to call actions directly from a JSP page by specifying the action name and an optional namespace. 

success.jsp

<%taglib prefix="s" uri="/struts-tags" %>

<html>
  <head>
    <title>Action Tag Example!</title>
  </head>
  <body>
    <h1><span style="background-color: #FFFFcc">Action Tag 
                        (
Data TagsExample!</span></h1>
      <s:action name="success">
        <b><i>The action tag will execute the result and include 
                            it in 
this page.</i></b></div>
      </s:action>
  </body>
</html>

Output of the success.jsp

                         

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Current Comments

4 comments so far (post your own) View All Comments Latest 10 Comments:

In Struts2 (not Struts 1) how do I force an action tag to be submitted under https (ssl)?

Thanks!

Posted by Jim Kath on Friday, 07.18.08 @ 22:41pm | #67940

What is the different between session scope and request scope? Can you help me?

Thanks.

Posted by Thuan-PN on Thursday, 05.15.08 @ 12:36pm | #60012

Te example doesn't really show the power of the action tag. What it allows you to do is to execute a struts 2 action and (optionally) have the resulting html become imbeded into the calling jsp.

try adding:

<s:action name="HelloWorld" executeResult="true" namespace="/roseindia"></s:action>

Assuming you have the HelloWorld.action servlet from the first tutorial in the "/roseindia" namespace that should give you a better example of what this tag can do.

Posted by trevis on Monday, 02.11.08 @ 10:32am | #47881

please explain more about action tag
why do you create actionTag class but not use it in success.jsp?

Posted by HuyNguyen on Friday, 09.21.07 @ 09:45am | #28518

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