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    <p>I just performed this change and it displays what you need:</p> <pre><code> protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); request.setAttribute("todo", "10"); request.getRequestDispatcher("/index.jsp").forward(request, response); } </code></pre> <p>This is the generated index.jsp:</p> <pre><code>&lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"&gt; &lt;title&gt;Insert title here&lt;/title&gt; &lt;/head&gt; &lt;body&gt; &lt;%=(String)request.getAttribute("todo")%&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>There might be something wrong with your getTodo().. I don't know how it works but maybe this could help:</p> <pre><code>... XmlMerge xmlMerge = new XmlMerge(); String todo = xmlMerge.getTodo(); ... request.setAttribute("todo", todo); </code></pre> <p>UPDATE:</p> <pre><code>PrintWriter out = response.getWriter(); out.println(...); out.close(); </code></pre> <p>This is your problem... you are getting the resource and close it. This might cause an illegal state exception issue..</p> <p>You "don't need" the dispatcher to the index.jsp.. if you don't use a dispatcher but you want to render your page you can use something like this:</p> <pre><code> protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); response.getWriter().write("&lt;html&gt;&lt;body&gt;"+getSomething()+"&lt;/body&gt;&lt;/html&gt;"); } </code></pre> <p>Why isn't index.jsp a default call? because there might not even exists an index.jsp file and it may be the call for another servlet. You can have a configuration that maps the call to index.jsp to a servlet.</p> <p><a href="http://tutorials.jenkov.com/java-servlets/web-xml.html" rel="noreferrer">http://tutorials.jenkov.com/java-servlets/web-xml.html</a></p> <p>I still don't know what is the purpose of using out.println but if you wanted it to be displayed in the jsp you can send it as argument as the "todo":</p> <pre><code> request.setAttribute("mergeFiles", mergeFiles); </code></pre> <p>And then print it in the jsp as the "todo".</p>
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    1. POHow to send Data to JSP from a Servlet?
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    1. COWhat is the purpose of "request.getRequestDispatcher("/index.jsp").forward(request, response);". If i have only one JSP page then isn't it going to send that data same jsp page. what i do need to write dispatcher statement
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    2. CO@pushya The thing is that you don't need an index.jsp, that might be the default call for the root of your domain, but you can display html without the dispatcher.. something like: `response.getWriter().write("<html><body>Not the index.jsp</body></html>");` And since you can have mapping, index.jsp could be another servlet (and not an index.jsp file) and you may not want to call it.
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    3. CO<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> IS this s mandatory for a JSP page?
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