date標籤允許在一個快速和容易的方式格式化日期。使用者可以指定自定義的格式(如“DD/ MM / YYYY HH:MM”),可以產生容易可讀的符號(如“2小時,14分鐘),或預定義的格式就可以求助於鍵struts.date.format'在屬性檔案中。
package com.yiibai.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; } }
以下helloWorld.jsp的內容:
<%@ 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>
struts.xml 應該像這樣:
<?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.yiibai.struts2.HelloWorldAction" method="execute"> <result name="success">/HelloWorld.jsp</result> </action> </package> </struts>
web.xml 應該像這樣:
<?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>
右鍵點選專案名稱,並單擊 Export > WAR File建立一個WAR檔案。然後部署此WAR在Tomcat的webapps目錄下。最後,啟動Tomcat伺服器和嘗試存取URL http://localhost:8080/HelloWorldStruts2/hello.action。這會給出以下畫面: