title: request.sendRedirect is not working
body: <p>I'm trying to redirect from current page (index.jsp) after user logs in to another page. I get no error for this and can't really understand what the problem is. Here is my code of the servlet:</p>
  
  <pre><code>protected void doGet(HttpServletRequest request, HttpServletResponse response)
          throws ServletException, IOException {
      response.getWriter().append("Served at: ").append(request.getContextPath());
  
      usernameInput = request.getParameter("username");
      passwordInput = request.getParameter("password");
      Connection conn = null;
      try {
          // Register JDBC driver
          Class.forName("com.mysql.jdbc.Driver");
  
          // Open a connection
          conn = DriverManager.getConnection(DB_URL, USER, PASS);
  
          // Execute SQL query
          String sql;
          sql = "SELECT * FROM `users` where Username=? and Password=?";
          PreparedStatement prepStmt = conn.prepareStatement(sql);
          prepStmt.setString(1, usernameInput);
          prepStmt.setString(2, passwordInput);
          ResultSet rs = prepStmt.executeQuery();
  
          if (rs.next()) {
              System.out.println("User login is valid in DB");
   //Here is where I try to log in. I tryed both the commented and uncommented way to log in but none seems to work.
              response.sendRedirect(request.getContextPath() + "resources/main.jsp");
              /*RequestDispatcher reqDisp = request.getRequestDispatcher("../WebContent/resources/main.jsp");
              reqDisp.forward(request, response);*/
  
  
          }
      } catch (Exception e) {
          System.out.println("validateLogon: Error while validating password: " + e.getMessage());
          try {
              throw e;
          } catch (Exception e1) {
              // TODO Auto-generated catch block
              e1.printStackTrace();
          }
      } finally {
          try {
              conn.close();
          } catch (SQLException e) {
              // TODO Auto-generated catch block
              e.printStackTrace();
          }
      }
  }
  </code></pre>
  
  <p>I can verify that it enters in the specific section of code since I see in the consele the message printed. If I could guess the problem, it may be I'm not giving the correct path for the <strong><em>main.jsp</em></strong> page. Here is how my project is structured.</p>
  
  <p><a href="https://i.stack.imgur.com/FZg4T.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/FZg4T.png" alt="enter image description here"></a></p>
  
  <p>Any ideas??Thanks!</p>