📄 addcar.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 AddCar 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=GBK");
  out.println("<html>");
  out.println("<body>");
  HttpSession session=request.getSession(true); 
  request.setCharacterEncoding("GBK");
  response.setCharacterEncoding("GBK");
  String item=request.getParameter("item"); 
  String Mount=request.getParameter("mount"); 
  String Unit=request.getParameter("unit"); 
  String str1="商品名称: "+item+" 数量: "+Mount+" 单位: "+Unit;
  out.println("刚才加入的商品是:");
  out.println("<BR>"+"---------------------"+"<BR>");
  out.println(str1);
  out.println("<BR>"+"---------------------"+"<BR>");
  String Caritem=(String) session.getAttribute("items");
  session.setAttribute(item,str1);
  out.println("<BR>"+"的购物车中的商品是:");
  out.println("<BR>"+"---------------------"+"<BR>");
  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=request.getContextPath()+"/srcjsp/Choice.jsp"; //response.encodeRedirectURL("/srcjsp/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=request.getContextPath()+"/srcjsp/Remove.jsp"; //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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