 | Please make sure you have read the Tag Syntax document and understand how tag attribute syntax works. |
Description
This tag enables developers 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.
Parameters can be passed to the action using nested param tags.
Parameters
Name |
Required |
Default |
Evaluated |
Type |
Description |
executeResult |
false |
false |
false |
Boolean |
Whether the result of this action (probably a view) should be executed/rendered |
flush |
false |
true |
false |
Boolean |
Whether the writer should be flush upon end of action component tag, default to true |
id |
false |
|
false |
String |
Deprecated. Use 'var' instead |
ignoreContextParams |
false |
false |
false |
Boolean |
Whether the request parameters are to be included when the action is invoked |
name |
true |
|
false |
String |
Name of the action to be executed (without the extension suffix eg. .action) |
namespace |
false |
namespace from where tag is used |
false |
String |
Namespace for action to call |
var |
false |
|
false |
String |
Name used to reference the value pushed into the Value Stack |
Examples
public class ActionTagAction extends ActionSupport {
public String execute() throws Exception {
return "done";
}
public String doDefault() throws Exception {
ServletActionContext.getRequest().setAttribute("stringByAction", "This is a String put in by the action's doDefault()");
return "done";
}
}
<xwork>
....
<action name="actionTagAction1" class="tmjee.testing.ActionTagAction">
<result name="done">success.jsp</result>
</action>
<action name="actionTagAction2" class="tmjee.testing.ActionTagAction" method="default">
<result name="done">success.jsp</result>
</action>
....
</xwork>
<div>The following action tag will execute result and include it in this page</div>
<br />
<s:action name="actionTagAction" executeResult="true" />
<br />
<div>The following action tag will do the same as above, but invokes method specialMethod in action</div>
<br />
<s:action name="actionTagAction!specialMethod" executeResult="true" />
<br />
<div>The following action tag will not execute result, but put a String in request scope
under an id "stringByAction" which will be retrieved using property tag</div>
<s:action name="actionTagAction!default" executeResult="false" />
<s:property value="#attr.stringByAction" />