struts2自定义类型转换(一)基于DefaultTypeConverter

struts2自定义类型转换(1)基于DefaultTypeConverterUser.javapackage com.orgpublic class User {private

struts2自定义类型转换(1)基于DefaultTypeConverter

User.java

package com.org;public class User {private String username;private String password;public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}}
UserAction.javapackage com.org;import com.opensymphony.xwork2.ActionSupport;public class UserAction extends ActionSupport {private User user;public void setUser(User user) {this.user = user;}public User getUser() {return user;}@Overridepublic String execute()throws Exception{System.out.println("username: "+getUser().getUsername());System.out.println("password: "+getUser().getPassword());return SUCCESS;}}
编写类型转换器 UserConvert.javapackage com.org;import java.util.Map;import java.util.StringTokenizer;import ognl.DefaultTypeConverter;public class UserConvert extends DefaultTypeConverter {@Overridepublic Object convertValue(Map context, Object value, Class toType) {// TODO Auto-generated method stub//从前台转后台if(User.class == toType){ String str[] = (String[])value; String v = str[0]; //取出字符串 StringTokenizer st = new StringTokenizer(v,";"); String username = st.nextToken(); String password = st.nextToken(); User user = new User(); user.setUsername(username); user.setPassword(password); return user; }else if(String.class == toType){ //从后台转到前台 User user = (User)value; String username = user.getUsername(); String password = user.getPassword(); return "Username: "+username+",Password: "+password;}return null;}}
UserAction-conversion.properties配置文件

user=com.org.UserConvert

info.jsp

<body> 请输入用户名和密码中间以分号隔开：<br> <form action="userAction" method="post">  <input type="text" name="user"><br> <input type="submit" value="提交"/> </form> </body>

success.jsp

用struts2标签取出数据

<body> SUCCESS!!!<s:property value="user"/> </body>
struts.xml配置文件

<?xml version="1.0" encoding="UTF-8" ?><!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.enable.DynamicMethodInvocation" value="false" /> <constant name="struts.devMode" value="false" /> <package name="default" extends="struts-default"> <action name="userAction" src="/img/2012/09/14/1548123611.png"></p><p>?</p><p><img alt="struts2自定义类型转换(一)基于DefaultTypeConverter" src="//img.reader8.net/uploadfile/jiaocheng/20140140/2726/2014012719260019110.gif"></p> </p></div> <div class="article-footer"> <div class="article-pager"> </div> <div class="article-ranking"> <div class="ranking-title">阅读人气排行</div> <div class="ranking-list"><ul class="hot-list-ul"> <li><span class="rank-num top-rank">1</span><a href="/jiaocheng/20140608/2370003.html" target="_blank" title="SQL SEVER 2008安装后出现的2个范例的区别，高分求解">SQL SEVER 2008安装后出现的2个范例的区</a></li> <li><span class="rank-num top-rank">2</span><a href="/jiaocheng/20140222/2254670.html" target="_blank" title="硬盘查到计算机上为什么看不到盘符">硬盘查到计算机上为什么看不到盘符</a></li> <li><span class="rank-num">3</span><a href="/jiaocheng/20140222/2254661.html" target="_blank" title="下面这个关于IP地址转换的有关问题，用什么方法解决呢">下面这个关于IP地址转换的有关问题，用什么</a></li> <li><span class="rank-num">4</span><a href="/jiaocheng/20121008/2061488.html" target="_blank" title="struts2+ibators oralce设立ID自增长">struts2+ibators oralce设立ID自增长</a></li> <li><span class="rank-num">5</span><a href="/jiaocheng/20120811/2027025.html" target="_blank" title="Linux 2.6.31内核优化-一">Linux 2.6.31内核优化-一</a></li> <li><span class="rank-num">6</span><a href="/jiaocheng/20120702/2023821.html" target="_blank" title="linux 装配时分区选择（转载）">linux 装配时分区选择（转载）</a></li> <li><span class="rank-num">7</span><a href="/jiaocheng/20140117/1990510.html" target="_blank" title="WinPcap网络抓包有关问题取不到PPP网卡">WinPcap网络抓包有关问题取不到PPP网卡</a></li> <li><span class="rank-num">8</span><a href="/jiaocheng/20120324/1772320.html" target="_blank" title="妈妈的生日快到了,送什么礼物好呢解决方案">妈妈的生日快到了,送什么礼物好呢解决方</a></li> <li><span class="rank-num">9</span><a href="/jiaocheng/20120611/1621921.html" target="_blank" title="20000多条记录的表做成cache合适吗？该怎么解决">20000多条记录的表做成cache合适吗？该怎么</a></li> <li><span class="rank-num">10</span><a href="/jiaocheng/20141110/2641576.html" target="_blank" title="MS Dynamic AX 的理解">MS Dynamic AX 的理解</a></li> </ul></div> </div> </div> </div> </div> <aside class="right-sidebar"> </aside> </div> </div> </main> <footer class="site-footer"><div class="container"><div class="footer-links"><a href="/data/page/1.html">关于我们</a> - <a href="/data/page/2.html">联系方式</a> - <a href="/sitemap.html">网站地图</a> - <a href="/data/page/3.html">版权声明</a> - <a href="/data/friendsite/">友情链接</a> - <a href="#top">返回顶部</a></div><p>读书人 (Reader8.net) . <a href="https://beian.miit.gov.cn/" target="_blank">粤ICP备2025459685号-1</a></p></div></footer><div style="display:none"><script>var _hmt=_hmt||[];(function(){var hm=document.createElement("script");hm.src="https://hm.baidu.com/hm.js?d6151f323a57d16696165e47eee86d53";var s=document.getElementsByTagName("script")[0];s.parentNode.insertBefore(hm,s);})();</script></div></body></html>