Java实战玩具商城的前台与后台实现流程
时间：2022-11-21 08:26:18 | 栏目：JAVA代码 | 点击：次
一、项目简述
本系统主要实现的功能有：
网上商城系统，前台+后台管理，用户注册，登录，商品展示，分组展示，搜索，收货地址管理，购物车管理，添加，购买，个人信息修改。订单查询等等，后台商品管理，分类管理，库存管理，订单管理，用户管理，信息修改等等。
二、项目运行
环境配置：
Jdk1.8 + Tomcat8.5 + mysql + Eclispe（IntelliJ IDEA,Eclispe,MyEclispe,Sts都支持）
项目技术：
Springboot+ SpringMVC + MyBatis + Jsp + Html+ JavaScript + JQuery + Ajax + maven等等
后台管理代码：
@Controller
public class IndexController {
/**
* 网站首页
* */
@GetMapping("/")
public String index(){
return "/index";
}
/**
* 联系我们
* */
@GetMapping("/contacts")
public String contacts(){
return "/common/contacts";
}
/**
* 关于我们
* */
@GetMapping("/about")
public String about(){
return "/common/about";
}
/**
* 后台管理首页
* */
@GetMapping("/admin/index")
public String adminindex(HttpSession session, HttpServletRequest request, HttpServletResponse response) throws IOException {
String admin = (String) session.getAttribute("admin");
/**拦截器：如果不是管理员，则进行重定向*/
if (StringUtils.isEmpty(admin)){
response.sendRedirect(request.getContextPath() + "/");//重定向
}
return "/admin/index";
}
/**
* 用户登录注册
* */
@GetMapping("/login")
public String login(){
return "/user/logreg";
}
/**
* 用户忘记密码
* */
@GetMapping("/forget")
public String forget(){
return "user/forget";
}
/**
* 个人中心
* */
@GetMapping("/user/center")
public String usercenter(HttpSession session, HttpServletRequest request, HttpServletResponse response) throws IOException {
String userid = (String) session.getAttribute("userid");
/**拦截器：如果不是用户角色登录，则进行重定向*/
if (StringUtils.isEmpty(userid)){
response.sendRedirect(request.getContextPath() + "/");//重定向
}
return "/user/user-center";
}
/**
* 用户修改密码
* */
@RequiresPermissions("user:userinfo")
@GetMapping("/user/pass")
public String userinfo(){
return "/user/updatepass";
}
/**
* 用户更换手机号
* */
@RequiresPermissions("user:userinfo")
@GetMapping("/user/phone")
public String userphone(){
return "/user/updatephone";
}
/**
* 用户商品列表
* */
@GetMapping("/user/product")
public String userproduct(){
return "/user/product/productlist";
}
/**
* 通知消息
* */
@GetMapping("/user/message")
public String commonmessage(){
return "/user/message/message";
}
/**
* 弹出式通知消息
* */
@GetMapping("/user/alertmessage")
public String alertmessage(){
return "/user/message/alertmessage";
}
/**
* 跳转到产品清单界面
* */
@GetMapping("/product-listing")
public String toproductlisting() {
return "/common/product-listing";
}
/**
* 跳转到产品清单搜索界面
* */
@GetMapping("/product-search")
public String toProductSearchs(String keys, ModelMap modelMap) {
if(keys==null){
return "/error/404";
}
modelMap.put("keys",keys);
return "/common/product-search";
}
/**用户个人中心默认展示图*/
@GetMapping("/home/console")
public String homeconsole(){
return "/admin/home/console";
}
/**
* 管理员首页默认展示图
* */
@GetMapping("/echars/console")
public String echars(){
return "/admin/echars/console";
}
@GetMapping("/app/message/index")
public String appmessageindex(){
return "/admin/app/message/index";
}
/**
* 用户收藏列表
* */
@GetMapping("/user/collect")
public String usercollect(){
return "/user/collect/collectlist";
}
/**
* 用户售出记录
* */
@GetMapping("/user/sold")
public String sold(){
return "/user/sold/soldrecord";
}
/**
* 销量列表
* */
@GetMapping("/admin/sold")
public String adminSold(){
return "/admin/sold/soldrecord";
}
/**
* 首页公告清单
* */
@GetMapping("/user/newslist")
public String userNews(){
return "/common/listnews";
}
/**
* 管理员公告列表
* */
@GetMapping("/admin/newslist")
public String adminNews(){
return "/admin/news/newslist";
}
}
订单和商品服务类：
@WebServlet("/backstage_goodsServlet")
public class GoodsServlet extends HttpServlet{
GoodsService service = new GoodsService();
@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String action = req.getParameter("action");
switch(action) {
case "addGoods":addGoods(req,resp);break;
case "getGoodsList":getGoodsList(req,resp);break;
case "getGoodsListByName":getGoodsListByName(req,resp);break;
case "deleteGoods":deleteGoods(req,resp);break;
case "toGoodsUpdatePage":toGoodsUpdatePage(req,resp);break;
case "updateGoods":updateGoods(req,resp);break;
case "upGoodsImage":upGoodsImage(req,resp);break;
case "fastbuy":sendOrder(req,resp);break;
}
}
/**
* 提交订单
* @throws IOException
*/
public void sendOrder(HttpServletRequest req, HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//设置日期格式
Orders order = new Orders();
order.setNumber(order.getRandomString(10));
order.setTime(df.format(new Date()));
order.setName(req.getParameter("recipients"));
order.setAddress(req.getParameter("address"));
order.setPhone(req.getParameter("phone"));
order.setAddress_label(req.getParameter("addressLabel"));
order.setSex(req.getParameter("sex"));
order.setUser("sjb");
order.setGoods_id(99);
order.setGoods_num(3);
order.setGoods_status(1);
int d = service.addOrder(order);
try {
if(d>0) {
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult error = JSONResult.errorMsg("订单提交失败!");
resp.getWriter().println(JsonUtil.javaObjectToJson(error));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 保存商品
* @throws IOException
*/
public void addGoods(HttpServletRequest req,HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
FileUploadUtil upFile = new FileUploadUtil();
ServletContext servletContext = req.getSession().getServletContext();
List<FileItem> items= upFile.getRequsetFileItems(req,servletContext);
//保存所有用户提交的 表单数据 的map
Map<String, String> formData = new HashMap<>();
String savePath = new File(getServletContext().getRealPath("/")).getParentFile().getParentFile().getPath()+"/imgs";
try {
//遍历
for (FileItem file : items) {
if(!file.isFormField()) {
String fileSuffix = FileUploadUtil.getFileSuffix(file).toUpperCase();
//必须是jpg或png 图片文件才能进行上传操作
if("JPG".equals(fileSuffix) || "PNG".equals(fileSuffix)) {
//生成新图片名
String imgName = FileUploadUtil.getImgNewName(fileSuffix);
FileUploadUtil.saveFile(file, savePath, imgName);
formData.put("imgUrl",imgName);
}
}else {
//非文件数据存入
formData.put(file.getFieldName(), file.getString("utf-8"));
}
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
Goods goods = new Goods();
goods.setName(formData.get("goodsName"));
goods.setNum(Integer.parseInt(formData.get("num")));
goods.setPrice(Double.parseDouble(formData.get("price")));
goods.setImgurl(formData.get("imgUrl"));
goods.setType(formData.get("type"));
goods.setDescription(formData.get("description"));
goods.setColor(formData.get("color"));
goods.setMemory(formData.get("memory"));
goods.setCreateDate(new SimpleDateFormat("yyyy-MM-dd").format(new Date()));
int d = service.addGoods(goods);
try {
if(d>0) {
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult errorMsg = JSONResult.errorMsg("添加失败，请重试");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 向前端页面返回商品数据列表
*/
public void getGoodsList(HttpServletRequest req,HttpServletResponse resp) {
List<Goods> allGoods = service.getAllGoods();
req.setAttribute("goodsList", allGoods);
try {
req.getRequestDispatcher("/backstage/tgls/goodsManage/goods_list.jsp").forward(req, resp);
} catch (ServletException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* @throws IOException
* 根据商品名查询商品
* @param req
* @param resp
* @throws
*/
public void getGoodsListByName(HttpServletRequest req,HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
String name = req.getParameter("goodsName");
String type = req.getParameter("type");
Map<String,String> parmas = new HashMap<>();
parmas.put("name", name);
parmas.put("type", type);
List<Goods> list = service.getGoodsByName(parmas);
try {
if(list != null) {
JSONResult ok = JSONResult.ok(list);
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult errorMsg = JSONResult.errorMsg("未获取到任何数据，请重试");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 修改商品时，获取此商品的全部数据，并返回至修改页面
*/
public void toGoodsUpdatePage(HttpServletRequest req,HttpServletResponse resp) {
int id = Integer.parseInt(req.getParameter("id"));
Goods goods = service.getGoodsInfoById(id);
req.setAttribute("goods", goods);
try {
req.getRequestDispatcher("/backstage/tgls/goodsManage/goods_update.jsp").forward(req, resp);
} catch (ServletException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
*修改商品信息时，如果有修改图片，先将图片进行修改
* @throws IOException
*/
public void upGoodsImage(HttpServletRequest req,HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
FileUploadUtil upFile = new FileUploadUtil();
ServletContext servletContext = req.getSession().getServletContext();
List<FileItem> items= upFile.getRequsetFileItems(req,servletContext);
String savePath = new File(getServletContext().getRealPath("/")).getParentFile().getParentFile().getPath()+"/imgs";
String imgName = null;
try {
//遍历
for (FileItem file : items) {
if(!file.isFormField()) {
String fileSuffix = FileUploadUtil.getFileSuffix(file);
//必须是jpg或png 图片文件才能进行上传操作
if("jpg".equals(fileSuffix) || "png".equals(fileSuffix)) {
//生成新图片名
imgName = FileUploadUtil.getImgNewName(fileSuffix);
FileUploadUtil.saveFile(file, savePath, imgName);
}
}
}
int d = service.updateGoodsImgById(imgName, Integer.parseInt(req.getParameter("id")));
if(d>0) {
JSONResult ok = JSONResult.ok(imgName);
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult errorMsg = JSONResult.errorMsg("修改失败，请重试");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 修改商品
* @throws IOException
*/
public void updateGoods(HttpServletRequest req,HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
Goods goods = new Goods();
goods.setId(Integer.parseInt(req.getParameter("id")));
goods.setName(req.getParameter("goodsName"));
goods.setNum(Integer.parseInt(req.getParameter("num")));
goods.setPrice(Double.parseDouble(req.getParameter("price")));
goods.setType(req.getParameter("type"));
goods.setColor(req.getParameter("color"));
goods.setMemory(req.getParameter("memory"));
goods.setDescription(req.getParameter("description"));
int d = service.updateGoodsById(goods);
try {
if(d>0) {
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult errorMsg = JSONResult.errorMsg("修改失败，请重试");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 删除商品
* @throws IOException
*/
public void deleteGoods(HttpServletRequest req,HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
int id = Integer.parseInt(req.getParameter("id"));
int d = service.deleteGoodsById(id);
try {
if(d>0) {
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult errorMsg = JSONResult.errorMsg("删除失败，请重试");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
订单服务类：
@WebServlet("/backstage_ordersServlet")
public class OrdersServlet extends HttpServlet{
OrdersService service = new OrdersService();
@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String action = req.getParameter("action");
System.out.println(action);
switch(action) {
case "getOrdersList":getOrdersList(req,resp);break;
case "getOrdersListByName":getOrdersListByName(req,resp);break;
case "deleteOrders":deleteOrders(req,resp);break;
case "deleteAllOrders":deleteAllOrders(req,resp);break;
case "toOrdersUpdatePage":toOrdersUpdatePage(req,resp);break;
case "updateOrders":updateOrders(req,resp);break;
case "fastbuy":sendOrder(req,resp);break;
}
}
/*
* 删除全部订单
*/
private void deleteAllOrders(HttpServletRequest req, HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
// TODO 自动生成的方法存根
int d = service.deleteAllOrders();
try {
if(d>0) {
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult errorMsg = JSONResult.errorMsg("删除失败，请重试");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 提交订单
* @throws IOException
*/
public void sendOrder(HttpServletRequest req, HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//设置日期格式
User user =(User) req.getSession().getAttribute("user");
Orders order = new Orders();
order.setNumber(order.getRandomString(10));
order.setTime(df.format(new Date()));
order.setName(req.getParameter("recipients"));
order.setAddress(req.getParameter("address"));
order.setPhone(req.getParameter("phone"));
order.setAddress_label(req.getParameter("addressLabel"));
order.setSex(req.getParameter("sex"));
order.setUser(user.getUserName());
order.setGoods_id(Integer.parseInt(req.getParameter("id")));
order.setGoods_num(Integer.parseInt(req.getParameter("num")));
order.setGoods_status(1);
int d = service.addOrder(order);
try {
if(d>0) {
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult error = JSONResult.errorMsg("订单提交失败!");
resp.getWriter().println(JsonUtil.javaObjectToJson(error));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 向前端页面返回订单数据列表
*/
public void getOrdersList(HttpServletRequest req,HttpServletResponse resp) {
List<Orders> allOrders = service.getAllOrders();
req.setAttribute("ordersList",allOrders);
try {
req.getRequestDispatcher("/backstage/tgls/ordersManage/orders_list.jsp").forward(req, resp);
} catch (ServletException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 根据订单名查询商品(注意！类别没改)
* @param req
* @param resp
* @throws IOException
*/
public void getOrdersListByName(HttpServletRequest req,HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
String name = req.getParameter("OrdersUser");
//String type = req.getParameter("type");
Map<String,String> parmas = new HashMap<>();
parmas.put("name", name);
//parmas.put("type", type);
List<Orders> list = service.getOrdersByName(parmas);
try {
if(list != null) {
JSONResult ok = JSONResult.ok(list);
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult errorMsg = JSONResult.errorMsg("未获取到任何数据，请重试");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 修改订单时，获取此订单的全部数据，并返回至修改页面
*/
public void toOrdersUpdatePage(HttpServletRequest req,HttpServletResponse resp) {
int id = Integer.parseInt(req.getParameter("id"));
Orders orders = service.getOrdersInfoById(id);
req.setAttribute("orders", orders);
try {
req.getRequestDispatcher("/backstage/tgls/ordersManage/orders_update.jsp").forward(req, resp);
} catch (ServletException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 修改订单
* @throws IOException
*/
public void updateOrders(HttpServletRequest req,HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
Orders orders = new Orders();
orders.setId(Integer.parseInt(req.getParameter("id")));
orders.setNumber(req.getParameter("number"));
orders.setUser(req.getParameter("user"));
orders.setTime(req.getParameter("time"));
orders.setName(req.getParameter("name"));
orders.setSex(req.getParameter("sex"));
orders.setAddress(req.getParameter("address"));
orders.setPhone(req.getParameter("phone"));
orders.setAddress_label(req.getParameter("address_label"));
orders.setGoods_id(Integer.parseInt(req.getParameter("goods_id")));
orders.setGoods_num(Integer.parseInt(req.getParameter("goods_num")));
orders.setGoods_status(Integer.parseInt(req.getParameter("goods_status")));
System.out.println(orders);
int d = service.updateOrdersById(orders);
System.out.println(d);
try {
if(d>0) {
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult errorMsg = JSONResult.errorMsg("修改失败，请重试");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 删除订单
* @throws UnsupportedEncodingException
*/
public void deleteOrders(HttpServletRequest req,HttpServletResponse resp) throws UnsupportedEncodingException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
int id = Integer.parseInt(req.getParameter("id"));
int d = service.deleteOrdersById(id);
try {
if(d>0) {
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult errorMsg = JSONResult.errorMsg("删除失败，请重试");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
用户服务类：
@WebServlet("/backstage_userServlet")
public class UserServlet extends HttpServlet{
UserService service = new UserService();
@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String action = req.getParameter("action");
switch(action) {
case "login":login(req, resp);break;
case "modifyPassword":modifyPassword(req, resp);break;
case "checkOldPassword":checkOldPassword(req, resp);break;
case "afterModifyPassword":afterModifyPassword(req, resp);break;
case "logout":logout(req, resp);break;
}
}
/**
* 用户登录
* @throws IOException
*/
public void login(HttpServletRequest req, HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
//获取前端页面传来的用户名
String userName = req.getParameter("userName");
//获取前端页面传来的密码
String password = req.getParameter("password");
// 1、先验证该用户的角色是否为管理员
String userRole = service.getUserRoleByName(userName);
try {
if(!"admin".equals(userRole)) {
JSONResult errorMsg = JSONResult.errorMsg("暂无登录权限");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}else {
//2、获取用户数据 进行用户名和密码验证
User user = service.getUserByNameAndPassword(userName, password);
if(user!=null) {
//将用户数据保存到session 作用域中，方便在后续的操作中使用用户数据
req.getSession().setAttribute("user", user);
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
// 将错误信息封装在结果集中
JSONResult result = JSONResult.errorMsg("用户名或密码错误，请重试");
//以json的形式返回给前端
resp.getWriter().println(JsonUtil.javaObjectToJson(result));
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 检查旧密码是否正确 ，在修改密码操作时使用
* @throws IOException
*/
public void checkOldPassword(HttpServletRequest req, HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
User user =(User) req.getSession().getAttribute("user");
String oldPassword = service.getPasswordById(user.getId());
String password = req.getParameter("password");
try {
if(!oldPassword.equals(password)) {
JSONResult errorMsg = JSONResult.errorMsg("原始密码错误，请重新输入");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}else {
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 修改密码
* @throws IOException
*/
public void modifyPassword(HttpServletRequest req, HttpServletResponse resp) throws IOException {
//设置请求编码格式:
req.setCharacterEncoding("utf-8");
//设置响应编码格式
resp.setContentType("text/html;charset=utf-8");
String password = req.getParameter("newPassword");
User user =(User) req.getSession().getAttribute("user");
int id = user.getId();
int d = service.updatePasswordById(id, password);
try {
if(d>0) {
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult errorMsg = JSONResult.errorMsg("修改失败，请重试");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 成功修改密码后，清除session中的数据，并且重新跳转到登录页
* @param req
* @param resp
*/
public void afterModifyPassword(HttpServletRequest req, HttpServletResponse resp) {
req.getSession().removeAttribute("user");
try {
//使用iframe时，要避免这种直接跳转的方式
// 此时只会让内嵌的iframe跳转到登录页，并非整个页面
// resp.sendRedirect("backstage/login.jsp");
PrintWriter writer = resp.getWriter();
writer.print("<html>");
writer.print("<script>");
writer.print("window.open('"+ req.getContextPath()+"/backstage/login.jsp','_top')");
writer.print("</script>");
writer.print("</html>");
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 退出登录
*/
public void logout(HttpServletRequest req, HttpServletResponse resp) {
req.getSession().removeAttribute("user");
try {
resp.sendRedirect("backstage/login.jsp");
} catch (IOException e) {
e.printStackTrace();
}
}
}