go to jsp page by hitting back button

Question

I have 2 jsp pages and one Servlet. I am fetching data from database by servlet and sending result to result.jsp page where i am displaying result. But i want to add a Back button in result.jsp , by clicking back button i want to go to index.jsp, but problem is when i am clicking back button everytime a message is coming Confirm form submission and it is irritating me. How can i avoid this Confirm form submission? perhaps it is coming as processing is done in servlet.

index.jsp

<form method="post" action="Student">

<input type="text" name="studentname"/>
<input type="submit" value="search"/>

</form>

Student servlet

 String student_name=request.getParameter("studentname");

  -------fetching data from database------------
  -------------------sending to result.jsp------

  String nextJSP = "/result.jsp";
      RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(nextJSP);
      dispatcher.forward(request,response);

result.jsp

 //displaying data here

<form action="index.jsp">

 <input type="submit" value="back"/>// a back button is here which is going to index.jsp   
</form>

EDIT

From result.jsp i am going to another page result1.jsp like below

In result.jsp i have written the following:

<a  href="result1.jsp.jsp?a code=<%out.println(student_name);%>"><%out.println(student_name);%></a>

By clicking the above hyperlink i went to result1.jsp

I want to add a back button here(in result1.jsp) and after clicking i want to do to result.jsp, but when clicking back button i am getting Confirm form submission every time. I have written the following in result1.jsp

<input type="button" value="Back" onclick="javascript:history.go(-1)">

Still i am getting that message Confirm form submission. How can i avoid this? I want to go to result.jsp directly with out this message. How is it possible?

Answer 1

you can also use this to go one page back

<button type="button" name="back" onclick="history.back()">back</button>