Rewrite Tag<html:rewrite>:

html:rewrite Tag - This tag renders a request URI based on exactly the same rules as the link tag does, but without creating the hyperlink.

Note :

This request URI value is useful when required to generate a string constant for use by a JavaScript procedure.
This tag will automatically apply URL rewriting, to maintain session state in the absence of cookies.
The content displayed for the hyperlink will be taken from the body of the tag. The base URL for the hyperlink
is calculated based on properties given with the tag.

Name	Description
action	This attribute specifies the logical name of a `Action` that contains the actual content-relative URI of the destination of this transfer. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, or the `page` attribute.
anchor	Optional anchor tag ("#xxx") to be added to the generated hyperlink. Specify this value without any "#" character.
forward	Logical name of a global `ActionForward` that contains the actual content-relative URI of the destination of this transfer. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, or the `page` attribute.
href	The "href" attribute specifies URL to which this hyperlink will transfer control if activated. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, or the `page` attribute.
name	The name of a JSP bean that contains a `Map` representing the query parameters (if `property` is not specified), or a JSP bean whose property getter is called to return a `Map` (if `property` is specified).
page	The module-relative path (beginning with a "/" character) to which this hyperlink will transfer control if activated. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, or the `page` attribute.
property	The name of a property of the bean specified by the `name` attribute, whose return value must be a `java.util.Map` containing the query parameters to be added to the hyperlink. You must specify the `name` attribute if you specify this attribute.
scope	The scope within which to search for the bean specified by the `name` attribute. If not specified, all scopes are searched.

Example Illustrating the use of the Rewrite<html:rewrite> tag.
Here you will learn to use the Struts Html<html:rewrite> tag.
We will cover an example that will show a working of<html:rewrite>tag.

Example code :
Creating an Action Class : Not Required here.
Creating Form Bean : Not Required here.

Defining the global-forwards :
Add the following entry in the struts-config.xml file for global-forward.


<global-forwards>

<forward name="welcome" path="/Welcome.do"/>

</global-forwards>

Developing the Action Mapping in the struts-config.xml :
Here, Action mapping helps to select the Form Bean, the Action class etc, for specific requests.


<action path="/Welcome" forward="/welcomeStruts.jsp"/>

Developing the HtmlRewriteTag.jsp page :


<%@page contentType="text/html"%>

<%@page pageEncoding="UTF-8"%>

<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean" %>

<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html" %>

<%@ taglib uri="http://jakarta.apache.org/struts/tags-logic" prefix="logic"%>



<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"

"http://www.w3.org/TR/html4/loose.dtd">

<html>

    <head>

        

        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

        <title>JSP Page</title>

    </head>

      <body bgcolor="#999933">

        <h3><font color="#FFFF33">html:rewrite Tag Demo</font></h3>

        <A HREF="<html:rewrite action="Welcome.do" />" >

           Click for URL <html:rewrite action="Welcome.do" />

           </A> 

    </body>

</html>

Developing the welcomeStruts.jsp page :

<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean" %> <%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html" %> <%@ taglib uri="http://jakarta.apache.org/struts/tags-logic" prefix="logic"%> <html:html locale="true"> <head> <title><bean:message key="welcome.title"/></title> <html:base/> </head> <a href="HtmlRewriteTag.jsp">Go Back........</a><br/> <body bgcolor="#999933"> <logic:notPresent name="org.apache.struts.action.MESSAGE" scope="application"> <font color="red"> ERROR: Application resources not loaded -- check servlet container logs for error messages. </font> </logic:notPresent> <h3><bean:message key="welcome.heading"/></h3> <p><bean:message key="welcome.message"/></p> </body> </html:html>

Add the following line in the index.jsp to call the form :

<a href="HtmlRewriteTag.jsp">HtmlRewriteTagDemo</a><br/>�

Building and Testing the Example :
Build , deploy and Test the application .
Open the browser and navigate to the HtmlRewriteTag.jsp page.

Your browser displays the following page.

Click the hyperlink to analyze the generated URL, welcomeStruts.jsp page, and see the output .

Output after clicked..........

Above actions displays the working of <html:rewrite>tag.