jsp+servlet+mysql购物商城源码

package cn.itcast.bookstore.user.web.servlet; import java.io.IOException; import java.net.URLEncoder; import java.util.HashMap; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import cn.itcast.bookstore.user.domain.User; import cn.itcast.bookstore.user.service.UserException; import cn.itcast.bookstore.user.service.UserService; import cn.itcast.commons.CommonUtils; import cn.itcast.servlet.BaseServlet; public class UserServlet extends BaseServlet { private UserService userService = new UserService(); /** * 异步校验登录名 * @param req * @param resp * @return * @throws ServletException * @throws IOException */ public String validateLoginname(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String loginname = req.getParameter("loginname"); boolean flag = userService.validateLoginname(loginname);//如果登录名已被注册返回true resp.getWriter().print(flag + ""); return null; } /** * 校验老密码 * @param req * @param resp * @return * @throws ServletException * @throws IOException */ public String validateLoginpass(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { /* * 1. 从session中获取当前用户，再获取当前用户的用户名 */ User user = (User) req.getSession().getAttribute("user"); String loginname = user.getLoginname(); /* * 2. 获取老密码 */ String loginpass = req.getParameter("loginpass"); /* * 3. 创建formBean，调用userService.login()方法进行校验 */ User formBean = new User(); formBean.setLoginname(loginname); formBean.setLoginpass(loginpass); User _user = userService.login(formBean); /* * 4. 如果用户名密码正确，返回true，否则返回false */ boolean flag = _user != null; resp.getWriter().print(flag + ""); return null; } /** * 异步校验Email * @param req * @param resp * @return * @throws ServletException * @throws IOException */ public String validateEmail(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String email = req.getParameter("email"); boolean flag = userService.validateEmail(email);//如果Email已被注册返回true resp.getWriter().print(flag + ""); return null; } /** * 异步校验验证码 * @param req * @param resp * @return * @throws ServletException * @throws IOException */ public String validateVerifyCode(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String vCode = (String) req.getSession().getAttribute("vCode"); String verifyCode = req.getParameter("verifyCode"); boolean flag = vCode.equalsIgnoreCase(verifyCode);//如果验证码正确返回true resp.getWriter().print(flag + ""); return null; } /** * 注册功能 * @param req * @param resp * @return * @throws ServletException * @throws IOException */ public String regist(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { /* * 1. 封装表单数据到User对象中 */ User user = CommonUtils.toBean(req.getParameterMap(), User.class); /* * 2. 对表单数据进行服务器端校验 */ Map<String,String> errors = validateRegist(user, req); if(errors != null && errors.size() > 0) {//是否存在校验错误信息 req.setAttribute("errors", errors); req.setAttribute("user", user); return "f:/jsps/user/regist.jsp"; } /* * 3. 调用userService完成注册 */ userService.regist(user); /* * 4. 保存注册成功信息，转发到msg.jsp显示 */ req.setAttribute("code", "success");//是成功信息还是错误信息 req.setAttribute("msg", "恭喜，注册成功！请马上到邮箱完成激活！"); return "f:/jsps/msg.jsp"; } /** * 激活功能 * @param req * @param resp * @return * @throws ServletException * @throws IOException */ public String activation(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { /* * 1. 获取激活码 */ String activationCode = req.getParameter("activationCode"); try { /* * 2. 调用userService的activation方法完成激活操作 */ userService.activation(activationCode); /* * 3. 如果没有抛出异常，那么保存成功信息 */ req.setAttribute("code", "success"); req.setAttribute("msg", "恭喜，激活成功，请马上登录！"); } catch (UserException e) { /* * 4. 如果抛出了异步，保存错误信息 */ req.setAttribute("code", "error"); req.setAttribute("msg", e.getMessage()); } // 无论成功还是失败，都会转发到msg.jsp显示信息。 return "f:/jsps/msg.jsp"; } /** * 登录功能 * @param req * @param resp * @return * @throws ServletException * @throws IOException */ public String login(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { /* * 1. 封装表单数据到User对象中 */ User formBean = CommonUtils.toBean(req.getParameterMap(), User.class); /* * 2. 对formBean进行服务器端表单校验 */ Map<String,String> errors = validateLogin(formBean, req); if(errors != null && errors.size() > 0) {//是否存在校验错误信息 req.setAttribute("errors", errors); req.setAttribute("user", formBean); return "f:/jsps/user/login.jsp"; } /* * 3. 调用userService#login(User user)完成登录 */ User user = userService.login(formBean); /* * 4. 判断是否查询到User */ if(user == null) {//如果用户登录失败 req.setAttribute("user", formBean); req.setAttribute("msg", "用户名或密码错误！"); return "f:/jsps/user/login.jsp"; } else if(!user.isStatus()) {//如果用户还没有激活 req.setAttribute("user", formBean); req.setAttribute("msg", "您还没有激活！"); return "f:/jsps/user/login.jsp"; } else {//如果登录成功 req.getSession().setAttribute("sessionUser", user); // 保存cookie，为了login.jsp页面可以记住当前用户名 String name = "loginname"; String value = URLEncoder.encode(user.getLoginname(), "UTF-8"); Cookie cookie = new Cookie(name, value); cookie.setMaxAge(1000 * 60 * 60 * 24); resp.addCookie(cookie); return "r:/index.jsp";//重定向到主页 } } /** * 退出功能 * @param req * @param resp * @return * @throws ServletException * @throws IOException */ public String quit(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { req.getSession().removeAttribute("user"); return "r:/jsps/user/login.jsp"; } /** * 修改密码 * @param req * @param resp * @return * @throws ServletException * @throws IOException */ public String updatePassword(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { /* * 1. 封装表单数据到User */ User formBean = CommonUtils.toBean(req.getParameterMap(), User.class); /* * 2. 调用userService的updatePassword(String uid, String newpass)方法修改密码 */ User user = (User) req.getSession().getAttribute("user"); userService.updatePassword(user.getUid(), formBean.getNewpass()); /* * 3. 转发到msg.jsp */ req.setAttribute("code", "success"); req.setAttribute("msg", "恭喜，密码修改成功！"); return "f:/jsps/msg.jsp"; } /* * 登录校验方法 */ private Map<String