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"> <!-- name属性值一定要对应Action中的属性 --> <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 class="aged2"><script type="text/javascript">a("article_content_down");</script></div> </div> <div id="pagebox" > <a href="/jiaocheng/biancheng/" target="_blank">查看更多</a> <A href="/jiaocheng/20121123/1832760.html" title="第六篇 键盘间断与应用程序读取键盘缓冲区">下一篇</A></div> <div id="MainLeftll"> <div id="MainLeftllToolbar">本文网址：<a href="https://www.reader8.net/jiaocheng/20120920/1832761.html">https://www.reader8.net/jiaocheng/20120920/1832761.html</a></div> <div class="related"><span class="relatedIco1">读书人精选</span> <ul class="relatedList"> </ul> </div> <div class="aged3"><script type="text/javascript">a("article_content_down2");</script></div> <div class="aged3a"><script type="text/javascript">a("article_content_down3");</script></div> </div> </div> <!-- 文章正文左边结束 --> <!-- 文章正文右边开始 --> <div class="leftbox_r"> <div class="aged4"><script type="text/javascript">a("article_right_up");</script></div> <div class="Rtitle"> <span class="Rtitle_text">热点排行</span></div> <div class="RContl"> <ul> <li><a href="/jiaocheng/20140123/1912529.html" target="_blank">maven 项目平添Maven Dependencies Libr</a></li> <li><a href="/jiaocheng/20140122/1943016.html" target="_blank">java类静态域、块，非静态域、块，结构函</a></li> <li><a href="/jiaocheng/20140125/1973610.html" target="_blank">Golang的slice圈套</a></li> <li><a href="/jiaocheng/20140715/2477185.html" target="_blank">Spring2 兑现AOP编程的两种实现方法</a></li> <li><a href="/jiaocheng/20140705/2451858.html" target="_blank">树的底层实现（下）</a></li> <li><a href="/jiaocheng/20140424/2313132.html" target="_blank">多线程程序的评量基准</a></li> <li><a href="/jiaocheng/20140721/2494264.html" target="_blank">struts2札记之第七讲</a></li> <li><a href="/jiaocheng/20140709/2460644.html" target="_blank">jquery 用ID取某个元素上的某个ID元素</a></li> <li><a href="/jiaocheng/20120822/1928045.html" target="_blank">施用jacob 合并excel</a></li> <li><a href="/jiaocheng/20121222/1909994.html" target="_blank">scoket创设多线程服务器</a></li> </ul> </div> <div class="aged7"><script type="text/javascript">a("article_right_up2");</script></div> <!-- 文章正文右边结束 --> </div> <!--主体结束--> <script type="text/javascript">a("article_down_up");</script> <script type="text/javascript">a("foot");</script> <script type="text/javascript">a("article_down_up2");</script> <!--主体结束--> <div style="display:none"> <!--百度统计代码--> <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> <script type="text/javascript">a("allbt");</script> </body> </html>
