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Servlet URL Rewrite

import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.util.*; public class MyServlet extends HttpServlet {      public void doGet(HttpServletRequest request, HttpServletResponse response)     throws ServletException, java.io.IOException {                  response.setContentType("text/html");         java.io.PrintWriter out = response.getWriter();         String contextPath = request.getContextPath();         String encodedUrl =  response.encodeURL(contextPath + "/default.jsp");                 out.println("<html>");         out.println("<head>");         out.println("<title>URL Rewriter</title>");           out.println("</head>");         out.println("<body>");         out.println("<h1>This page will use URL rewriting if necessary</h2>");         out.println("Go to the default.jsp page <a href=\"" + encodedUrl +              "\">here</a>.");         out.println("</body>");         out.println("</html>");          }       public void doPost(HttpServletRequest request, HttpServletResponse response)     throws ServletException, java.io.IOException {       doGet(request,response);      } } <?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE web-app     PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"     "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd"> <web-app>     <servlet><servlet-name>MyServletName</servlet-name>              <servlet-class>MyServlet</servlet-class>         <init-param>             <param-name>                 go             </param-name>             <param-value>                 weather             </param-value>         </init-param>                   </servlet>          <servlet-mapping><servlet-name>MyServletName</servlet-name>         <url-pattern>/index.html</url-pattern>     </servlet-mapping> </web-app>