MVC - Split the Java servlet(help needed)

I am trying to split the servlet (ControlServlet) so that only the control code remains and the rest should be moved to the other two servlets (Errorservlet and ReportServlet). I am not quiet sure about the RequestDispatcher method if i wrote it correctly. I am not getting compilation errors but when i try to run project it says no servlet mapping specified on the xml file for the servlets. what i am doing wrong?I am new to java.here is my code:

ControlServlet

Code Java:

package servlets;
 
 
 
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
 
 
public class ControlServlet_a003241a extends HttpServlet
{
 
 @Override
 public void doGet(HttpServletRequest request,
        HttpServletResponse response)
                throws ServletException, IOException
    {
        RequestDispatcher dispatcher = null;
        String userName = request.getParameter("userName");
 
 
        if (!userName.equals(""))
        {
            dispatcher =
               request.getRequestDispatcher("ResportServlet_a003241a");
        }
        else
        {
            dispatcher =
               request.getRequestDispatcher("ErrorServlet_a003241a");
        }
        dispatcher.forward(request, response);
    }
}

ErrorServlet

Code Java:

package servlets;
 
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
 
 
public class ErrorServlet_a003241a extends HttpServlet {
 
 @Override
    public void doGet(HttpServletRequest request,
                      HttpServletResponse response)
                throws ServletException, IOException
    {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
 
        String userName = request.getParameter("userName");
 
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Week 02, PortfolioExercise</title>");
            out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"Week02_Portfolio_a003241a.css\">");
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Week 02, Portfolio Exercise </h1>");
 
            out.println("</body>");
            out.println("</html>");
 
        if (userName.equals(""))
        {
 
            out.println("<p You typed:\" ");
 
        }
 
        out.println("<p>Please go <a href= \"index_a003241a.html\"> back  </a> \"and type your name \"  </p>");
        out.println("</body></html>");
    }
}

ReportServlet

Code Java:

package servlets;
 
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
 
 
public class ReportServlet_a003241a extends HttpServlet {
 
  @Override
    public void doGet(HttpServletRequest request,
                      HttpServletResponse response)
                throws ServletException, IOException
    {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
 
        String userName = request.getParameter("userName");
 
 
 
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Week 02, PortfolioExercise</title>");
            out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"Week02_Portfolio_a003241a.css\">");
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Week 02, Portfolio Exercise </h1>");
            out.println("<p Hello, " + userName);
            out.println("</body>");
            out.println("</html>");
 
 
    }

web.xml file

Code Java:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
    <servlet>
        <servlet-name>ReportServlet_a003241a</servlet-name>
        <servlet-class>servlets.ReportServlet_a003241a</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>ErrorServlet_a003241a</servlet-name>
        <servlet-class>servlets.ErrorServlet_a003241a</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>ControlServlet_a003241aservlet</servlet-name>
        <servlet-class>servlets.ControlServlet_a003241a</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>ReportServlet_a003241a</servlet-name>
        <url-pattern>/ReportServlet_a003241a </url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>ErrorServlet_a003241a</servlet-name>
        <url-pattern>/ErrorServlet_a003241a </url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>ControlServlet_a003241a</servlet-name>
        <url-pattern>/ControlServlet_a003241a </url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
</web-app>

html file:

Code Java:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>Week02, Portfolio Exercise</title>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <link rel="stylesheet" type="text/css" href="Week02_Portfolio_a003241a.css"/>
  </head>
  <body>
      <h1> Week02, Portfolio Exercise</h1>
      <form action="ControlServlet_a003241a" method="post"
      <p>Type your name in the box:
            <input type="text" name="userName"></p>
      <p>Then click the button:
          <input type="submit" value="Submit"></p>
</form>
  </body>
</html>