jsp+servlet+javabean - 简单网上购物车 - 图文

import java.io.IOException;

import javax.servlet.ServletException; import javax.servlet.http.HttpServlet;

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

import com.hbsi.domain.Cart;

import com.hbsi.service.BusinessService;

import com.hbsi.service.BusinessServiceImpl;

public class ChangeQuantitySevlet extends HttpServlet {

public void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException { String sid = request.getParameter(\

String quantity = request.getParameter(\

Cart cart = (Cart) request.getSession().getAttribute(\

BusinessService service = new BusinessServiceImpl(); service.changeQuantity(sid,quantity,cart);

request.getRequestDispatcher(\ard(request, response);

}

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

doGet(request, response); } }

//ClearCartServlet.java

package com.hbsi.web.controller;

import java.io.IOException;

import javax.servlet.ServletException; import javax.servlet.http.HttpServlet;

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

import com.hbsi.domain.Cart;

import com.hbsi.service.BusinessService;

import com.hbsi.service.BusinessServiceImpl;

public class ClearCartServlet extends HttpServlet { BusinessService service=new BusinessServiceImpl(); public void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

Cart cart=(Cart) request.getSession().getAttribute(\ service.clearCart(cart);

request.getRequestDispatcher(\ard(request, response); }

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

doGet(request, response); } }

//DeleteItemServlet.java

package com.hbsi.web.controller;

import java.io.IOException;

import javax.servlet.ServletException; import javax.servlet.http.HttpServlet;

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

import com.hbsi.domain.Cart;

import com.hbsi.service.BusinessService;

import com.hbsi.service.BusinessServiceImpl;

public class DeleteItemServlet extends HttpServlet { //调服务类里边的方法从购物项里删除想要删除的书

BusinessService service=new BusinessServiceImpl();

public void doGet(HttpServletRequest HttpServletResponse response)

throws ServletException, IOException {

request,

//获取到购物项

String sid=request.getParameter(\

Cart cart=(Cart)request.getSession().getAttribute(\

service.deleteCartItem(sid,cart);

request.getRequestDispatcher(\ard(request, response);

}

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

doGet(request, response); } }

//ListBookServlet.java

package com.hbsi.web.controller;

import java.io.IOException; import java.util.List;

import javax.servlet.ServletException; import javax.servlet.http.HttpServlet;

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

import com.hbsi.domain.Book;

import com.hbsi.service.BusinessService;

import com.hbsi.service.BusinessServiceImpl;

public class ListBookServlet extends HttpServlet { BusinessService service=new BusinessServiceImpl(); public void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

List list=service.getAllBook(); request.setAttribute(\

request.getRequestDispatcher(\rward(request, response); }

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

doGet(request, response); } }

//ListCartServlet.java package com.hbsi.web.ui;

import java.io.IOException;

import javax.servlet.ServletException; import javax.servlet.http.HttpServlet;

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

public class ListCartServlet extends HttpServlet {

public void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

request.getRequestDispatcher(\ard(request, response); }