简单购物车和登录界面的java程序

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1、GoodsBean.javapackagebean;publicclassGoodsBean{Stringid;Stringname;intprice;intcount;publicGoodsBean(){}publicGoodsBean(Stringid,Stringname,intprice,intcount){this.id=id;......}publicStringgetId(){returnid;}publicvoidsetId(Stringid){this.id=id;}......}CartB

2、ean.javapackagebean;importjava.util.ArrayList;importjava.util.Iterator;publicclassCartBean{ArrayListitems;publicCartBean(){this.items=newArrayList();}publicvoidaddItem(GoodsBeanitem){items.add(item);}publicArrayListgetItems(){returnthis.items;}publicintgetT

3、otalPrice(){inttotal=0;Iteratorit=items.iterator();while(it.hasNext()){GoodsBeanitem=(GoodsBean)it.next();total=total+item.getPrice()*item.count;}returntotal;}}CartServlet.javapackageservlet;importjava.io.IOException;importjavax.servlet.*;importjavax.servle

4、t.http.*;publicclassCartServletextendsHttpServlet{publicvoiddoGet(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException,IOException{Stringid=request.getParameter("id");Stringname=request.getParameter("name");intprice=Integer.parseInt(

5、request.getParameter("price"));intcount=Integer.parseInt(request.getParameter("count"));bean.GoodsBeanitem=newbean.GoodsBean(id,name,price,count);bean.CartBeancb=(bean.CartBean)request.getSession().getAttribute("cb");if(cb==null)cb=newbean.CartBean();cb.add

6、Item(item);request.getSession().setAttribute("cb",cb);response.sendRedirect("shopping.jsp");}publicvoiddoPost(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException,IOException{doGet(request,response);}}index.jsp<%@pagecontentType="tex

7、t/html;charset=gb2312"language="java"%>商品序号

8、iv>......商品名称、商品单价、购买数量、购买操作shopping.jsp<%@pagecontentType="text/html;charset=gb2312"language="java"%><%@pageim