在Javaservlet中调用html页面

我已经运行了这个自动生成的Javaservlet和Tomcat6。我想在JavaServlet中调用我的HTML文件，以便在localhost上查看我的页面。我发现我需要使用

requestdispatcher

，但使用以下代码似乎无法使其正常工作：

package com.captiveportal;
import java.io.IOException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class Demo
 */
public class Demo extends HttpServlet {
    private static final long serialVersionUID = 1L;

    /**
     * @see HttpServlet#HttpServlet()
     */
    public Demo() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        response.getWriter().append("Served at: ").append(request.getContextPath());
        RequestDispatcher rd = request.getRequestDispatcher("captiveportal.html");
        rd.forward(request, response);
    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
        RequestDispatcher rd = request.getRequestDispatcher("captiveportal.html");
        rd.forward(request, response);
    }

}

---

你是否给出了正确的html页面路径？？尝试使用下面的路径-http:：/host:port/rootApp/。/yourHtml

您有什么错误？当我转到localhost:8080时，页面不会显示，我只得到一个404。我需要把我的html文件放在一个特定的位置吗？目前它只是在我桌面上的一个文件夹中。你能给我们看看web.xml和captiveportal.html的路径吗