JSP购物车 网上书店 数据库SQL SERVER

package com.jiu.servlet; import com.jiu.model.*; 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; public class LoginCl extends HttpServlet { /** * The doGet method of the servlet. <br> * * This method is called when a form has its tag value method equals to get. * * @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 doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); response.setCharacterEncoding("utf-8"); request.setCharacterEncoding("utf-8"); PrintWriter out = response.getWriter(); //得到用户名和密码，验证用户是否合法 String u=request.getParameter("username"); String p=request.getParameter("password"); String use=request.getParameter("use"); String type=request.getParameter("type"); if(use.equals("login")){ UserBeanBO ubb=new UserBeanBO(); if(ubb.checkUser(u, p)){ //用户合法 //1.把成功登录的用户信息放入session【后面用到】 UserBean ub=ubb.getUserBean(u); request.getSession().setAttribute("userInfo", ub); if(type.equals("login1")){ request.getRequestDispatcher("index.jsp").forward(request, response); }else if(type.equals("login2")){ request.getRequestDispatcher("index.jsp").forward(request, response); } }else{ //用户不合法 request.getRequestDispatcher("login.jsp").forward(request, response); } }else if(use.equals("zhuce")){ //用户注册 try{ String userName=request.getParameter("userName"); String trueName=request.getParameter("trueName"); String password1=request.getParameter("password1"); String email=request.getParameter("email"); String phone=request.getParameter("phone"); String address=request.getParameter("address"); String post=request.getParameter("post"); if(new UserBeanBO().addUser(userName, trueName, password1,email,phone,address,post)){ request.getRequestDispatcher("zhuceof.jsp").forward(request, response); }else{ request.getRequestDispatcher("Fail.jsp").forward(request, response); } }catch(Exception e){ e.printStackTrace(); } }else if(use.equals("updateUser")){ //修改用户信息 String userid=request.getParameter("userid"); String username=request.getParameter("username"); String truename=request.getParameter("truename"); String email=request.getParameter("email"); String phone=request.getParameter("phone"); String address=request.getParameter("address"); String postcode=request.getParameter("postcode"); UserBeanBO ubb=new UserBeanBO(); Boolean b=ubb.updateUser(userid, username, truename, email, phone, address, postcode); if(b){ MyCartBO mcb=(MyCartBO)request.getSession().getAttribute("mycart"); ArrayList al=mcb.showMyCart(); //把al放入request request.setAttribute("mycartInfo", al); UserBean ub=ubb.getUserBean(u); request.getSession().setAttribute("userInfo", ub); request.getRequestDispatcher("shopping3.jsp").forward(request, response); } } } /** * 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 { this.doGet(request, response); } }