STRUTS2 Ajax Tags for learning notes from the STRUTS2 Authority Guide

The div tag is used to generate a DIV element on the page, but the DIV element content is not static content but gets the data from the server, so that the div can get the data on the server, you must specify an href attribute for the div tag, this href attribute must be an action, The action is responsible for generating the contents of the Div

Because Div is an AJAX tag, you want to add Theme= "Ajax" attributes to this tag

Xml

? XML version= "1.0" encoding= "GBK"?>
< Web-app Version = "2.4" xmlns = "http://java.sun.com/xml/ns/j2ee"
Xmlns:xsi = "Http://www.w3.org/2001/XMLSchema-instance"
Xsi:schemalocation = "Http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >

< servlet >

< Servlet-name > Dwr </servlet-name >
< Servlet-class > Uk.ltd.getahead.dwr.DWRServlet </servlet-class >
< Init-param >
< param-name > Debug </param-name >
< Param-value > True </param-value >
</Init-param >
</servlet >

< servlet-mapping >
< Servlet-name > Dwr </servlet-name >
< Url-pattern >/dwr/* </url-pattern >
</servlet-mapping >



< filter >
< Filter-name > struts2 </filter-name >
< Filter-class > Org.apache.struts2.dispatcher.FilterDispatcher </filter-class >
</Filter >


< filter-mapping >
< Filter-name > struts2 </filter-name >
< Url-pattern >/* </url-pattern >
</filter-mapping >

</Web-app >

<! 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.custom.i18n.resources" value = "Messageresource"/>
< constant name = "Struts.i18n.encoding" value = "GBK"/>

< package name = "Ajax" extends = "Struts-default" >
< action name = "random" class = "Lee." Randomaction ">
< result >/ajaxresult.jsp </result >
</Action >
< action name = "Test3" >
< result >/testjs.jsp </result >
</Action >
</Package >

</Struts >

Randomaction

Package Lee;

Import com.opensymphony.xwork2.Action;

Import java.io.Serializable;


public class Randomaction implements Action
... {
Private String data;

Public String Getrdmstr ()
... {