How to show success message on page.redirect from servlet to jsp

Question

I have a html form in jsp page which on submit is going to servlet ..After executing the functions in servlet i am again redirecting it to the same jsp page from which it has been invoked with a success message to display now on the same jsp page but i don't know how to do this ...

Here is my jsp form code..

 <form action="CallTimer" method="GET">
    <label class="button2">Set Date: </label>
    <input type="text" name="date" id="date">
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
    <label class="button2">Set Hour </label>
    <input type="text" name="hour" id="hour">
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
    <label class="button2">Set Minute: </label>
    <input type="text" name="minute" id="minute">
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
    <input type="Submit" name="Submit" value="Submit" id="Submit">
    <br/><br/>
    <label class="button2">Set File-Path: </label>
    <input type="text" name="filepath" id="filepath">
</form>

And here is my servlet redirect code.

response.sendRedirect("Automail.jsp");

Answer 1

At Servlet:

 // You need to set value in session for redirection.
 session.setAttribute("msg","Success");

 response.sendRedirect("Automail.jsp");

At Automail.jsp

  ${msg}

Answer 2

In servlet:

response.sendRedirect("Automail.jsp?success=1");

In your jsp:

<c:if test="${param.success eq 1}">
     <div> success </div>
</c:if>