org.apache.struts2.interceptor

Class CreateSessionInterceptor

java.lang.Object

com.opensymphony.xwork2.interceptor.AbstractInterceptor

org.apache.struts2.interceptor.CreateSessionInterceptor

All Implemented Interfaces:

Interceptor, Serializable

public class CreateSessionInterceptor
extends AbstractInterceptor

This interceptor creates the HttpSession if it doesn't exist, also SessionMap is recreated and put in ServletActionContext.

This is particular useful when using the <@s.token> tag in freemarker templates. The tag do require that a HttpSession is already created since freemarker commits the response to the client immediately.

Interceptor parameters:

• None

• None

Example:

 

 <action name="someAction" class="com.examples.SomeAction">
     <interceptor-ref name="createSession"/>
     <interceptor-ref name="defaultStack"/>
     <result name="input">input_with_token_tag.ftl</result>
 </action>

 
 

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CreateSessionInterceptor()

Method Summary

Modifier and Type	Method and Description
String	intercept(ActionInvocation invocation) Override to handle interception

Methods inherited from class com.opensymphony.xwork2.interceptor.AbstractInterceptor

destroy, init

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CreateSessionInterceptor

public CreateSessionInterceptor()

Method Detail

intercept

public String intercept(ActionInvocation invocation)
                 throws Exception

Description copied from class: AbstractInterceptor

Override to handle interception

Specified by:

intercept in interface Interceptor

Specified by:

intercept in class AbstractInterceptor

Parameters:

invocation - the action invocation

Returns:

the return code, either returned from ActionInvocation.invoke(), or from the interceptor itself.

Throws:

Exception - any system-level error, as defined in Action.execute().