How to redirect a page in JSP

[Level8]

Hello, I am working on java programming language and while working on it, I want to know the details about How to redirect a page in JSP. I have tried to perform it, but it is not get solved by me, so if you are having any solution for it, then It will be helpful to me. So, please help me for that.

[opaper]

Hey, I have tried it as below. I have not tested it, so just compile and run it in your program:

boolean flag;
System.out.println("Anything");
flag=bean.Any();
if(flag==false){
%>
      <jsp:forward page="Impossible.jsp" />
<%
}

[Modifier]

If you want to redirect a JSP page then you need to simly call the response.sendRedirect() method in your scriptlet and you will able to get your problem solved. But it is necessary to call this method before the output gets flushed else you will get the exception. So, simply use the line of code below:

<% String redirectURL = "http://<sitename>/"; 
response.sendRedirect(redirectURL); %>

[Praetor]

Syntax:

public void sendRedirect(java.lang.String location) throws java.io.IOException

Description:
Sends a temporary redirect response to the client using the specified redirect location URL. This method can accept relative URLs; the servlet container must convert the relative URL to an absolute URL before sending the response to the client. If the location is relative without a leading '/' the container interprets it as relative to the current request URI. If the location is relative with a leading '/' the container interprets it as relative to the servlet container root. If the response has already been committed, this method throws an IllegalStateException. After using this method, the response should be considered to be committed and should not be written to.

[MindSpace]

Hello, redirecting in a jsp page is really a simple thing. You can achieve it with the help of below one:

if( condition() )
{
	res.sendRedirect( newlocation );
	return;
}

[Katty]

You can simply make use of the implicit object to redirect the jsp page to other page by the use of the response. For that you can use following line of code:

response.sendRedirect("<site name>");

If you want to do the physical alteration of the location then you can simply make use of the code below:

<%
response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
String location  = "newpath.html";
response.setHeader("Location",location );
%>