div標籤用於在頁面上產生一個div元素,但這個div元素內容不是靜態內容,而是從伺服器上擷取資料,為了讓該div能夠取得伺服器上的資料,必須為div標籤指定一個href屬性,這個href屬性必須是一個action,該action負責產生該div的內容
因為div是一個ajax標籤,因此要為這個標籤增加theme="ajax"屬性
web.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()
...{