Java實戰(zhàn)玩具商城的前臺與后臺實現(xiàn)流程
更新時間：2022年01月02日 12:35:46 作者：qq_1334611189
讀萬卷書不如行萬里路，只學(xué)書上的理論是遠(yuǎn)遠(yuǎn)不夠的，只有在實戰(zhàn)中才能獲得能力的提升，本篇文章手把手帶你用java+JSP+SSM+Springboot+Jsp+maven+Mysql實現(xiàn)一個玩具商城系統(tǒng),大家可以在過程中查缺補漏，提升水平
一、項目簡述
本系統(tǒng)主要實現(xiàn)的功能有：
網(wǎng)上商城系統(tǒng)，前臺+后臺管理，用戶注冊，登錄，商品展示，分組展示，搜索，收貨地址管理，購物車管理，添加，購買，個人信息修改。訂單查詢等等，后臺商品管理，分類管理，庫存管理，訂單管理，用戶管理，信息修改等等。
二、項目運行
環(huán)境配置：
Jdk1.8 + Tomcat8.5 + mysql + Eclispe（IntelliJ IDEA,Eclispe,MyEclispe,Sts都支持）
項目技術(shù)：
Springboot+ SpringMVC + MyBatis + Jsp + Html+ JavaScript + JQuery + Ajax + maven等等
后臺管理代碼：
@Controller
public class IndexController {
/**
* 網(wǎng)站首頁
* */
@GetMapping("/")
public String index(){
return "/index";
}
/**
* 聯(lián)系我們
* */
@GetMapping("/contacts")
public String contacts(){
return "/common/contacts";
}
/**
* 關(guān)于我們
* */
@GetMapping("/about")
public String about(){
return "/common/about";
}
/**
* 后臺管理首頁
* */
@GetMapping("/admin/index")
public String adminindex(HttpSession session, HttpServletRequest request, HttpServletResponse response) throws IOException {
String admin = (String) session.getAttribute("admin");
/**攔截器：如果不是管理員，則進(jìn)行重定向*/
if (StringUtils.isEmpty(admin)){
response.sendRedirect(request.getContextPath() + "/");//重定向
}
return "/admin/index";
}
/**
* 用戶登錄注冊
* */
@GetMapping("/login")
public String login(){
return "/user/logreg";
}
/**
* 用戶忘記密碼
* */
@GetMapping("/forget")
public String forget(){
return "user/forget";
}
/**
* 個人中心
* */
@GetMapping("/user/center")
public String usercenter(HttpSession session, HttpServletRequest request, HttpServletResponse response) throws IOException {
String userid = (String) session.getAttribute("userid");
/**攔截器：如果不是用戶角色登錄，則進(jìn)行重定向*/
if (StringUtils.isEmpty(userid)){
response.sendRedirect(request.getContextPath() + "/");//重定向
}
return "/user/user-center";
}
/**
* 用戶修改密碼
* */
@RequiresPermissions("user:userinfo")
@GetMapping("/user/pass")
public String userinfo(){
return "/user/updatepass";
}
/**
* 用戶更換手機號
* */
@RequiresPermissions("user:userinfo")
@GetMapping("/user/phone")
public String userphone(){
return "/user/updatephone";
}
/**
* 用戶商品列表
* */
@GetMapping("/user/product")
public String userproduct(){
return "/user/product/productlist";
}
/**
* 通知消息
* */
@GetMapping("/user/message")
public String commonmessage(){
return "/user/message/message";
}
/**
* 彈出式通知消息
* */
@GetMapping("/user/alertmessage")
public String alertmessage(){
return "/user/message/alertmessage";
}
/**
* 跳轉(zhuǎn)到產(chǎn)品清單界面
* */
@GetMapping("/product-listing")
public String toproductlisting() {
return "/common/product-listing";
}
/**
* 跳轉(zhuǎn)到產(chǎn)品清單搜索界面
* */
@GetMapping("/product-search")
public String toProductSearchs(String keys, ModelMap modelMap) {
if(keys==null){
return "/error/404";
}
modelMap.put("keys",keys);
return "/common/product-search";
}
/**用戶個人中心默認(rèn)展示圖*/
@GetMapping("/home/console")
public String homeconsole(){
return "/admin/home/console";
}
/**
* 管理員首頁默認(rèn)展示圖
* */
@GetMapping("/echars/console")
public String echars(){
return "/admin/echars/console";
}
@GetMapping("/app/message/index")
public String appmessageindex(){
return "/admin/app/message/index";
}
/**
* 用戶收藏列表
* */
@GetMapping("/user/collect")
public String usercollect(){
return "/user/collect/collectlist";
}
/**
* 用戶售出記錄
* */
@GetMapping("/user/sold")
public String sold(){
return "/user/sold/soldrecord";
}
/**
* 銷量列表
* */
@GetMapping("/admin/sold")
public String adminSold(){
return "/admin/sold/soldrecord";
}
/**
* 首頁公告清單
* */
@GetMapping("/user/newslist")
public String userNews(){
return "/common/listnews";
}
/**
* 管理員公告列表
* */
@GetMapping("/admin/newslist")
public String adminNews(){
return "/admin/news/newslist";
}
}訂單和商品服務(wù)類：
@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;
}
}
/**
* 提交訂單
* @throws IOException
*/
public void sendOrder(HttpServletRequest req, HttpServletResponse resp) throws IOException {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
resp.setContentType("text/html;charset=utf-8");
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//設(shè)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("訂單提交失敗!");
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 {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
resp.setContentType("text/html;charset=utf-8");
FileUploadUtil upFile = new FileUploadUtil();
ServletContext servletContext = req.getSession().getServletContext();
List<FileItem> items= upFile.getRequsetFileItems(req,servletContext);
//保存所有用戶提交的 表單數(shù)據(jù) 的map
Map<String, String> formData = new HashMap<>();
String savePath = new File(getServletContext().getRealPath("/")).getParentFile().getParentFile().getPath()+"/imgs";
try {
//遍歷
for (FileItem file : items) {
if(!file.isFormField()) {
String fileSuffix = FileUploadUtil.getFileSuffix(file).toUpperCase();
//必須是jpg或png 圖片文件才能進(jìn)行上傳操作
if("JPG".equals(fileSuffix) || "PNG".equals(fileSuffix)) {
//生成新圖片名
String imgName = FileUploadUtil.getImgNewName(fileSuffix);
FileUploadUtil.saveFile(file, savePath, imgName);
formData.put("imgUrl",imgName);
}
}else {
//非文件數(shù)據(jù)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("添加失敗，請重試");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 向前端頁面返回商品數(shù)據(jù)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
* 根據(jù)商品名查詢商品
* @param req
* @param resp
* @throws
*/
public void getGoodsListByName(HttpServletRequest req,HttpServletResponse resp) throws IOException {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
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("未獲取到任何數(shù)據(jù)，請重試");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 修改商品時，獲取此商品的全部數(shù)據(jù)，并返回至修改頁面
*/
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();
}
}
/**
*修改商品信息時，如果有修改圖片，先將圖片進(jìn)行修改
* @throws IOException
*/
public void upGoodsImage(HttpServletRequest req,HttpServletResponse resp) throws IOException {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
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 {
//遍歷
for (FileItem file : items) {
if(!file.isFormField()) {
String fileSuffix = FileUploadUtil.getFileSuffix(file);
//必須是jpg或png 圖片文件才能進(jìn)行上傳操作
if("jpg".equals(fileSuffix) || "png".equals(fileSuffix)) {
//生成新圖片名
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("修改失敗，請重試");
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 {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
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("修改失敗，請重試");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 刪除商品
* @throws IOException
*/
public void deleteGoods(HttpServletRequest req,HttpServletResponse resp) throws IOException {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
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("刪除失敗，請重試");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
}訂單服務(wù)類：
@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;
}
}
/*
* 刪除全部訂單
*/
private void deleteAllOrders(HttpServletRequest req, HttpServletResponse resp) throws IOException {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
resp.setContentType("text/html;charset=utf-8");
// TODO 自動生成的方法存根
int d = service.deleteAllOrders();
try {
if(d>0) {
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
JSONResult errorMsg = JSONResult.errorMsg("刪除失敗，請重試");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 提交訂單
* @throws IOException
*/
public void sendOrder(HttpServletRequest req, HttpServletResponse resp) throws IOException {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
resp.setContentType("text/html;charset=utf-8");
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//設(shè)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("訂單提交失敗!");
resp.getWriter().println(JsonUtil.javaObjectToJson(error));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 向前端頁面返回訂單數(shù)據(jù)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();
}
}
/**
* 根據(jù)訂單名查詢商品(注意！類別沒改)
* @param req
* @param resp
* @throws IOException
*/
public void getOrdersListByName(HttpServletRequest req,HttpServletResponse resp) throws IOException {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
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("未獲取到任何數(shù)據(jù)，請重試");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 修改訂單時，獲取此訂單的全部數(shù)據(jù)，并返回至修改頁面
*/
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();
}
}
/**
* 修改訂單
* @throws IOException
*/
public void updateOrders(HttpServletRequest req,HttpServletResponse resp) throws IOException {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
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("修改失敗，請重試");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 刪除訂單
* @throws UnsupportedEncodingException
*/
public void deleteOrders(HttpServletRequest req,HttpServletResponse resp) throws UnsupportedEncodingException {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
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("刪除失敗，請重試");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
}用戶服務(wù)類：
@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;
}
}
/**
* 用戶登錄
* @throws IOException
*/
public void login(HttpServletRequest req, HttpServletResponse resp) throws IOException {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
resp.setContentType("text/html;charset=utf-8");
//獲取前端頁面?zhèn)鱽淼挠脩裘?
String userName = req.getParameter("userName");
//獲取前端頁面?zhèn)鱽淼拿艽a
String password = req.getParameter("password");
// 1、先驗證該用戶的角色是否為管理員
String userRole = service.getUserRoleByName(userName);
try {
if(!"admin".equals(userRole)) {
JSONResult errorMsg = JSONResult.errorMsg("暫無登錄權(quán)限");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}else {
//2、獲取用戶數(shù)據(jù) 進(jìn)行用戶名和密碼驗證
User user = service.getUserByNameAndPassword(userName, password);
if(user!=null) {
//將用戶數(shù)據(jù)保存到session 作用域中，方便在后續(xù)的操作中使用用戶數(shù)據(jù)
req.getSession().setAttribute("user", user);
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}else {
// 將錯誤信息封裝在結(jié)果集中
JSONResult result = JSONResult.errorMsg("用戶名或密碼錯誤，請重試");
//以json的形式返回給前端
resp.getWriter().println(JsonUtil.javaObjectToJson(result));
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 檢查舊密碼是否正確 ，在修改密碼操作時使用
* @throws IOException
*/
public void checkOldPassword(HttpServletRequest req, HttpServletResponse resp) throws IOException {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
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("原始密碼錯誤，請重新輸入");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}else {
JSONResult ok = JSONResult.ok();
resp.getWriter().println(JsonUtil.javaObjectToJson(ok));
}
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 修改密碼
* @throws IOException
*/
public void modifyPassword(HttpServletRequest req, HttpServletResponse resp) throws IOException {
//設(shè)置請求編碼格式:
req.setCharacterEncoding("utf-8");
//設(shè)置響應(yīng)編碼格式
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("修改失敗，請重試");
resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 成功修改密碼后，清除session中的數(shù)據(jù)，并且重新跳轉(zhuǎn)到登錄頁
* @param req
* @param resp
*/
public void afterModifyPassword(HttpServletRequest req, HttpServletResponse resp) {
req.getSession().removeAttribute("user");
try {
//使用iframe時，要避免這種直接跳轉(zhuǎn)的方式
// 此時只會讓內(nèi)嵌的iframe跳轉(zhuǎn)到登錄頁，并非整個頁面
// 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();
}
}
/**
* 退出登錄
*/
public void logout(HttpServletRequest req, HttpServletResponse resp) {
req.getSession().removeAttribute("user");
try {
resp.sendRedirect("backstage/login.jsp");
} catch (IOException e) {
e.printStackTrace();
}
}
}到此這篇關(guān)于Java實戰(zhàn)玩具商城的前臺與后臺實現(xiàn)流程的文章就介紹到這了,更多相關(guān)Java 玩具商城內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！
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