goto.java

来自「beginJsp2.0外文书籍源代码」· Java 代码 · 共 30 行

package com.wrox.servlets;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class Goto extends HttpServlet 
{

  String forwardingAddress = "Goto";

  public void doGet(HttpServletRequest req, HttpServletResponse res) 
              throws ServletException, IOException 
  {
    String option = (String) req.getAttribute("option");
    PrintWriter out = res.getWriter();
    if (option != null) 
    {
      if (option.equals("forward")) 
      {
        out.println("You have been forwarded to this page");
      }
      else if (option.equals("include")) 
      {
        out.println("This line will be included in the response");
      }
    }
  }
}