Using tag <c:redirect>
of Core JSTL tags
In this example we have used Core JSTL tag <c:redirect>
that is used to redirect the page to given url, here param is used to get
parameter from request. Tag <c:forEach> is member of Core
tag library of JSTL so before using Core JSTL tags we
must include following line of code :-
<%@
taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"
%>
redirect_CoreJstl.jsp
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<html>
<head>
<title>Import a Page</title>
</head>
<body><frame name="frame1">
<form method="POST">
<p>Enter 1 for http://www.roseindia.net<br>
Enter 2 for http://www.google.com<br>
Enter 3 for http://www.yahoo.com<br>
Enter 4 for http://www.msn.com<br>
<table >
<tr>
<td>Enter Your Choice </td>
<td>
<input type="text" name="choice" size="20"/>
</td>
<td><input type="submit" value="submit"/></td>
</tr>
</form></frame>
<c:if test="${pageContext.request.method=='POST'}">
<c:choose>
<c:when test="${param.choice=='1'}">
<c:redirect url="http://www.roseindia.net"/>
</c:when>
<c:when test="${param.choice=='2'}">
<c:redirect url="http://www.google.com"/>
</c:when>
<c:when test="${param.choice=='3'}">
<c:redirect url="http://www.yahoo.com"/>
</c:when>
<c:when test="${param.choice=='4'}">
<c:redirect url="http://www.msn.com"/>
</c:when>
<c:otherwise>
<font color="red"><b>Found wrong choice, try again...</font></b>
</c:otherwise>
</c:choose>
</c:if>
</body>
</html>
|
Steps to run this example :
1: Download the zip file of code and unzip this
file, you will get a folder named 'redirect_page_jstlCoreTag'.
2: Paste this folder in 'Apache Tomcat 6.0.16-->webapps' or generally
in directory 'C:\apache-tomcat-6.0.16\webapps'.
3: Start tomcat server by click on startup.bat file in
'C:\apache-tomcat-6.0.16\bin'.
4: Open browser and type url 'http://localhost:8080/redirect_page_jstlCoreTag/redirect_CoreJstl.jsp'
or click on this link.
When program will run in browser this will show the
following output.....
when user will fill in the text box and click on submit
button, next response will be according to the user choice, if user fills choice
other than provided in the list, response will be the error message........
Download Source
Code
|
Del.icio.us
Digg
Google
Spurl
Blink
Furl
Simpy
Y! MyWeb
