struts2.1中使用Ajax主题

来源：互联网发布：婴幼儿棉裤淘宝编辑：程序博客网时间：2024/06/05 06:15

1.将struts2-dojo-plugin-2.1.8.1.jar加入lib中
2.在需要使用标签的jsp文件里写上<%@taglib prefix="sx" uri="/struts-dojo-tags" %>
3.在<head>标签里写上<sx:head/>
之后我们就可以开始使用struts2的ajax标签了

需注意的事项
1、需引入struts2-dojo-plugin-2.1.8.1.jar
2、页面标签的变化如下：
ajax.jsp
Java代码

<%@ page language="java" pageEncoding="UTF-8"%>

<%@ taglib prefix="s" uri="/struts-tags"%>

<%@ taglib prefix="sx" uri="/struts-dojo-tags"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<sx:head/>

</head>

<body> 

<div id="show">一个div</div>

<s:form namespace="/demo" action="ajax!testAjax" method="post">

<s:textfield name="name"></s:textfield>

<sx:submit value="修改上面div的值" targets="show"></sx:submit>

</s:form>

</body>

</html>

<%@ page language="java" pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags"%><%@ taglib prefix="sx" uri="/struts-dojo-tags"%><!-- 注意 --> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head>      <title>Ajax Demo</title><sx:head/><!-- 注意 --></head><body>&nbsp; <h1>Ajax Dmeo:</h1><div id="show">一个div</div><s:form namespace="/demo" action="ajax!testAjax" method="post"><!-- 注意 --><s:textfield name="name"></s:textfield><sx:submit value="修改上面div的值" targets="show"></sx:submit><!-- 注意 --></s:form></body></html>

Java代码

package cn.ibeans.demo.web.action;

import org.apache.log4j.Logger;

import org.apache.struts2.convention.annotation.Namespace;

import org.apache.struts2.convention.annotation.Result;

import org.apache.struts2.convention.annotation.Results;

import com.opensymphony.xwork2.ActionSupport;

@Namespace("/demo")

@Results({

@Result(name="ok",location="ajaxResult.jsp")

})

public class AjaxAction extends ActionSupport {

private static Logger log= Logger.getLogger(AjaxAction.class);

private String data;

public String getData() {

return "服务器的返回值："+data;

}

public void setData(String data) {

this.data = data;

}

public String testAjax() throws Exception{

log.info("ajax 调用成功！");

return "ok";

}

@Override

public String execute() throws Exception {

log.info("ajax 调用成功！");

return super.SUCCESS;

}

package cn.ibeans.demo.web.action;import org.apache.log4j.Logger;import org.apache.struts2.convention.annotation.Namespace;import org.apache.struts2.convention.annotation.Result;import org.apache.struts2.convention.annotation.Results;import com.opensymphony.xwork2.ActionSupport;@Namespace("/demo")@Results({@Result(name="ok",location="ajaxResult.jsp")})public class AjaxAction extends ActionSupport {private static Logger log= Logger.getLogger(AjaxAction.class);private String data;public String getData() {return "服务器的返回值："+data;}public void setData(String data) {this.data = data;}public String testAjax() throws Exception{log.info("ajax 调用成功！");return "ok";}@Overridepublic String execute() throws Exception {log.info("ajax 调用成功！");return super.SUCCESS;}}

ajaxResult.jsp:
Java代码

<%@ 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

System.out.println("ajaxResult.jsp is called");

Result: <s:property value="data"/><br/>

<%@ taglib prefix="s" uri="/struts-tags" %><%request.setAttribute("decorator", "none");response.setHeader("Cache-Control","no-cache"); //HTTP 1.1response.setHeader("Pragma","no-cache"); //HTTP 1.0response.setDateHeader ("Expires", 0); //prevents caching at the proxy serverSystem.out.println("ajaxResult.jsp is called");%>Result:  <s:property value="data"/><br/>