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>struts.xml
<!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="AjaxTest" class="lee.AjaxTestAction"> <result>/AjaxResult.jsp</result> </action> <action name="Test3"> <result>/testjs.jsp</result> </action> </package></struts>
AjaxTest.action
package lee;import com.opensymphony.xwork2.Action;import java.io.Serializable;public class AjaxTestAction implements Action, Serializable
...{
private static int counter = 0; private String data; public long getServerTime()
...{ return System.currentTimeMillis();
} public int getCount() ...{ return ++counter; } public String getData() ...{ return "服务器提示：" + data; } public void setData(String data) ...{ this.data = data; } public String execute() throws Exception ...{ return SUCCESS; }
}
AjaxResult.jsp
<%...@ page contentType="text/html;charset=GBK" language="java" %><%...@ taglib prefix="s" uri="/struts-tags" %><%... request.setAttribute("decorator", "none"); response.setHeader("Cache-Control","no-cache"); //HTTP 1.1 response.setHeader("Pragma","no-cache"); //HTTP 1.0 response.setDateHeader ("Expires", 0); //prevents caching at the proxy server%>服务器计数器: <s:property value="count"/><br>当前时间是：<s:property value="serverTime"/><br>服务器返回的提示是：<s:property value="data"/>
remoteform.jsp
<%...@ page contentType="text/html;charset=GBK" language="java" %><%...@ taglib prefix="s" uri="/struts-tags" %><html><head> <title>远程表单</title> <s:head theme="ajax"/></head><body><div id='show' style="background-color:#bbbbbb;width:360px;height:80px">原始静态文本</div>使用表单请求的返回值来填充另一个Div。<br/><s:form id='theForm1' cssStyle="border: 1px solid black;" action='AjaxTest' method='post' theme="ajax"> <s:textfield name='data' label="请输入您喜欢的图书"/> <s:submit value="修改上面的静态文本" targets="show"/></s:form>使用表单请求的返回值来填充本Form<br/><s:form id='theForm2' cssStyle="border: 1px solid black;" action='AjaxTest' method='post' theme="ajax"> <s:textfield name='data' label="请输入您喜欢的图书"/> <s:submit value="修改Form本身" targets="theForm2"/></s:form>直接运行远程JavaScript(通过指定executeScripts="true")<br/><s:form id='theForm3' cssStyle="border: 1px solid black;" action='Test3' method='post' theme="ajax"> <s:textfield name='data' label="请输入您喜欢的图书"/> <s:submit value="执行远程JS" executeScripts="true" targets="show"/></s:form></body></html>
testjs.jsp
<%...@ page contentType="text/html;charset=GBK" language="java" %><%... request.setAttribute("decorator", "none"); response.setHeader("Cache-Control","no-cache"); //HTTP 1.1 response.setHeader("Pragma","no-cache"); //HTTP 1.0 response.setDateHeader ("Expires", 0); //prevents caching at the proxy server%><script language="JavaScript" type="text/javascript">... alert('Spring2.0宝典');</script>