modifycount.java

用mvc实现购物车,简单使用,欢迎大家来下载啊

package com.xaccp.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Hashtable;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.xaccp.business.ShopCar;
import com.xaccp.entity.Product;

public class ModifyCount extends HttpServlet {

	public ModifyCount() {
		super();
	}

	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		this.doPost(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		String[] prodId = request.getParameterValues("id");// 获取商品编号列表
		String[] prodCount = request.getParameterValues("count");// 获取修改后的数量列表
		HttpSession session = request.getSession();
		Object obj = session.getAttribute("shopCar");
		ShopCar shopCar = (ShopCar) obj;
		Hashtable<String, Product> table = shopCar.getProductList();
		for (int i = 0; i < prodId.length; i++) {
			Product prod = (Product) table.get(prodId[i]);
			prod.setProdCount(Integer.parseInt(prodCount[i]));
		}
		session.setAttribute("shopCar", shopCar);
		response.sendRedirect("productCar.jsp");
		out.flush();
		out.close();
	}

	public void init() throws ServletException {
	}

}