updategoodsnumaction.java

这是一个购物网站可以实现购物的功能还有后台管理

package com.my.struts.action;

import java.util.ArrayList;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.my.model.MyCartBO;

public class UpdateGoodsNumAction extends Action {

	@Override
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) throws Exception {
		MyCartBO mbo=(MyCartBO)request.getSession().getAttribute("cart");
		if(mbo==null)
		{
			mbo=new MyCartBO();
			request.getSession().setAttribute("cart", mbo);
		}
		String goodsId[]=request.getParameterValues("goodsId");
		  String newNums[]=request.getParameterValues("newNums");
		  if(goodsId!=null&&newNums!=null)
		  {
		for(int i=0;i<goodsId.length;i++)
		{
			//System.out.println("id="+goodsId[i]+","+"num="+newNums[i]);
			mbo.upGoods(goodsId[i], newNums[i]);
			//mbo.getGoodsNumBygoodsId(goodsId[i]);
		}	
		  }
		ArrayList al=mbo.showMyCart();
		request.setAttribute("mycart", al);
		request.setAttribute("err", "1");
		return mapping.findForward("success");
}
}