In this tutorial, We will discuss about the URL tag in struts2.2.1This tag is used.to to create an URL and output it as a text format. It?s never work by itself,but it can provides URL to other tags like <s:a> to create a hyperlink or <img> to render an image.
The following Example will shows how to implement the URL tag in the Struts2.2.1 --
First we create a JSP file named URLtag.jsp as follows.ADS_TO_REPLACE_1
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<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE
html PUBLIC
"-//W3C//DTD HTML 4.01
Transitional//EN" <%@taglib prefix="s" uri="/struts-tags"%> <html> <head>ADS_TO_REPLACE_3 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>URL tag Example</title> </head>ADS_TO_REPLACE_4 <body> <ol> <li>Image URL Here:<br>ADS_TO_REPLACE_5 <a href="http://www.roseindia.net"><img src="<s:url value="C:\gyan struts\url tag\logo.gif" /> " height="60" width="70" /></a></li>ADS_TO_REPLACE_6 <li>Simple URL Here:<br> <a href="<s:url value="http://www.roseindia.net" />">RoseIndia</a></li> <li><s:url action="URLtag.action" var="URLtag">ADS_TO_REPLACE_7 <s:param name="name">RoseIndia</s:param> </s:url> <a href="<s:property value="#URLtag" />">URL Tag Action (via property)</a></li>ADS_TO_REPLACE_8 <li><s:url action="URLtag.action" var="URLtag"> <s:param name="name">GyanSingh</s:param> </s:url> <s:a href="%{URLtag}">URL Tag Action (via %)</s:a></li>ADS_TO_REPLACE_9 </ol> </body> </html> |
The Struts mapping file Struts.xml is as follows-ADS_TO_REPLACE_10
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<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"ADS_TO_REPLACE_11 "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <constant name="struts.enable.DynamicMethodInvocation"ADS_TO_REPLACE_12 value="false" /> <constant name="struts.devMode" value="false" /> <constant name="struts.custom.i18n.resources"ADS_TO_REPLACE_13 value="ApplicationResources" /> <package name="default" namespace="/" extends="struts-default"> <action name="URLtag" class="roseindia.URLtag">ADS_TO_REPLACE_14 <result name="success">/URLtag.jsp</result> </action> </package>ADS_TO_REPLACE_15 </struts> |
The action class URLtag.java is as follows.
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package roseindia; import com.opensymphony.xwork2.ActionSupport;ADS_TO_REPLACE_16 public class URLtag extends ActionSupport{ public String execute() throws Exception { return SUCCESS;ADS_TO_REPLACE_17 } } |
This Program produces output on the basis of the URL tag evaluation, This give the output as-
Output:-ADS_TO_REPLACE_18
Download Select Source CodeADS_TO_REPLACE_19
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