data标签允许以快速简单的方式格式化日期。用户可以指定自定义日期格式(例如“dd/MM/yyyy hh:mm”),可以生成易读的符号(例如“在2小时14分钟内”),或者可以使用属性文件中的key:“struts.date.format”来回退到预定义的格式。

创建action类
- package com.w3xue.struts2;
- import java.util.*;
- public class HelloWorldAction{
- private Date currentDate;
- public String execute() throws Exception{
- setCurrentDate(new Date());
- return "success";
- }
- public void setCurrentDate(Date date){
- this.currentDate = date;
- }
- public Date getCurrentDate(){
- return currentDate;
- }
- }
创建视图
让我们创建包含以下内容的HelloWorld.jsp:
- <%@ page contentType="text/html; charset=UTF-8" %>
- <%@ taglib prefix="s" uri="/struts-tags" %>
- <html>
- <head>
- <title>Hello World</title>
- </head>
- <body>
- <h2>Current Date</h2>
- <h3>Day/Month/Year Format</h3>
- <s:date name="currentDate" format="dd/MM/yyyy" />
- <h3>Month/Day/Year Format</h3>
- <s:date name="currentDate" format="MM/dd/yyyy" />
- </body>
- </html>
配置文件
你的struts.xml应该如下所示:你的web.xml应该如下所示:
- <?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.devMode" value="true" />
- <package name="helloworld" extends="struts-default">
- <action name="hello"
- class="com.w3xue.struts2.HelloWorldAction"
- method="execute">
- <result name="success">/HelloWorld.jsp</result>
- </action>
- </package>
- </struts>
右键单击项目名称,然后单击“Export”> “WAR File”以创建WAR文件。然后在Tomcat的webapps目录中部署WAR文件。最后,启动Tomcat服务器并尝试访问URL http://localhost:8080/HelloWorldStruts2/hello.action,将显示以下界面:
- <?xml version="1.0" encoding="UTF-8"?>
- <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xmlns="http://java.sun.com/xml/ns/javaee"
- xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
- xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
- http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
- id="WebApp_ID" version="3.0">
- <display-name>Struts 2</display-name>
- <welcome-file-list>
- <welcome-file>index.jsp</welcome-file>
- </welcome-file-list>
- <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>

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