showshopbytypeidservlet.java

一个仿造淘宝的jsp网站。功能比较完善

package com.jc.taobao.gjj.action;

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

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.jc.taobao.gjj.entity.ShopInfo;
import com.jc.taobao.gjj.entity.TypeInfo;
import com.jc.taobao.gjj.logic.ShopInfoBean;
import com.jc.taobao.gjj.logic.ShopPageBean;
import com.jc.taobao.gjj.logic.TypeInfoBean;

public class ShowShopbyTypeidServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public ShowShopbyTypeidServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		String typename=request.getParameter("type");
		String shopname=request.getParameter("sousou1");
		if(shopname.trim()==""){
		TypeInfoBean tbean=new TypeInfoBean();
		ArrayList altype=tbean.getTypeinfoquerybyTypename(typename);
		if(altype.isEmpty())
		{
			out.print("<script>alert('对不起,找不到您要的商品!');window.history.go(-1);</script>");
		}else{
		TypeInfo type=(TypeInfo)altype.get(0);
		int typeid=type.getTid();
		HttpSession session=request.getSession();
		ShopPageBean pb=new ShopPageBean();
		session.setAttribute("alshop", pb.getPageBean(1, Integer.valueOf(typeid)));
		response.sendRedirect("/taobao/Quotient.jsp");
		}
		}else
		{
			ShopInfoBean shopbean=new ShopInfoBean();
			ShopInfo shop=new ShopInfo();
			shop.setShopname(shopname);
			ArrayList alshopbyname=(ArrayList)shopbean.getquerybyshopname(shop);
			if(alshopbyname.isEmpty()){
				out.print("<script>alert('对不起,找不到您要的商品!');window.history.go(-1);</script>");
			}else{
			ShopInfo shop11=(ShopInfo)alshopbyname.get(0);
			int shopid=shop11.getSid();
			response.sendRedirect("/taobao/Buyshop.jsp?buyshopid="+shopid);
			}
		}
		
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}