📄 removegoods.java

📁 这是一本介绍ＪＳＰ技术的资料

💻 JAVA

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package bcs;

import java.io.*;
import java.util.* ;
import javax.servlet.* ;
import javax.servlet.http.* ;
public class RemoveGoods extends HttpServlet
{ public void init(ServletConfig config) throws ServletException
     {super.init(config);
}
public void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException
{
PrintWriter out=response.getWriter();
 response.setContentType("text/html;charset=GB2312");
 request.setCharacterEncoding("GB2312");
out.println("<html>");
out.println("<body>");
HttpSession session=request.getSession(true); 
String req_item=request.getParameter("item"); 
String item= new String(req_item.getBytes("ISO8859_1"));
session.removeAttribute(item); 
out.println("现在的购物车中的商品为:");
Enumeration em=session.getAttributeNames();
while(em.hasMoreElements())
{
    String item0=(String)em.nextElement();
    String items=(String)session.getAttribute(item0);
    out.println("<BR>"+items);

}
  String Url_choice=response.encodeRedirectURL("choice.jsp");
  out.println(" <form action="+ Url_choice+" method=post name=form >");
  out.println(" <input type=submit value='继续购物'>");
  out.println("</form>");
  String Url_Remove=response.encodeRedirectURL("Remove.jsp");
  out.println(" <form action="+ Url_Remove+" method=post name=form >");
  out.println(" <input type=submit value='修改购物车内的物品'>");
  out.println("</form>");
}
public void doGet(HttpServletRequest request,HttpServletResponse response)
       throws ServletException,IOException
{
  doPost(request,response);
}}

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