Java项目:优咪商城系统(java+SpringBoot+html+bootstrap+layui+maven+mysql)

源码获取:博客首页 "资源" 里下载!

项目介绍

优咪网上购物体验系统

1. 该平台主要有两大功能:
(1) 浏览平台官方和认证作者提供的篮球相关信息,信息类型包括:视频,新闻,评论类文章,比赛结果
(2) 篮球周边商城,商品分类球鞋、球衣、篮球、运动装备、休闲衣服
(3) 特别功能:每条信息和每一个商品都有一个特殊类型:标签(可有多个标签)。当用户在浏览某条信息(例如在看某段视频到结尾时),平台根据标签向用户推送标签相同的商品。反之,用户在浏览某件商品时,亦根据标签向用户推送与该商品标签相同的信息。
2. 该平台有三种用户:平台管理员、平台认证作者、普通用户
(1) 平台管理员:
① 可管理平台官方运营的商店,对商店的商品进行增删查改,定期上线活动
② 管理平台的信息发布,可对信息进行增删改查
(2) 平台认证作者:
① 可发布自己攥写的文章或自己剪辑的视频
② 可在自己发布的信息下方添加商品链接,若用户购买可获得提成
(3) 用户:
① 可无广告地浏览平台上关于篮球的资讯
② 可浏览商品并且购买
③ 可申请成为官方认证作者

环境需要

1.运行环境:最好是java jdk 1.8,我们在这个平台上运行的。其他版本理论上也可以。
2.IDE环境:IDEA,Eclipse,Myeclipse都可以。推荐IDEA;
3.tomcat环境:Tomcat 7.x,8.x,9.x版本均可
4.硬件环境:windows 7/8/10 1G内存以上;或者 Mac OS;
5.是否Maven项目: 是;查看源码目录中是否包含pom.xml;若包含,则为maven项目,否则为非maven项目

6.数据库:MySql 5.7版本;

技术栈

1. 后端:Springboot

2. 前端:html+bootstrap+jQuery+layui+ueditor

使用说明

1. 使用Navicat或者其它工具,在mysql中创建对应名称的数据库,并导入项目的sql文件;
2. 将项目中application.yml配置文件中的数据库配置改为自己的配置
3. 使用IDEA/Eclipse/MyEclipse导入项目,Eclipse/MyEclipse导入时,若为maven项目请选择maven;若为maven项目,导入成功后请执行maven clean;maven install命令,配置tomcat,然后运行;
4. 运行项目 前台地址:http://localhost:8080/

后台浏览地址:http://localhost:8080/login.html

 

 

 

 

 

后台管理-登录页:

/**
 * 后台管理-登录页
 */
@Controller
public class AdminLoginController extends BaseController {
    @Autowired
    private AdminService adminService;

    //转到后台管理-登录页
    @RequestMapping("admin/login")
    public String goToPage(){
        logger.info("转到后台管理-登录页");
        return "admin/loginPage";
    }

    //登陆验证-ajax
    @ResponseBody
    @RequestMapping(value = "admin/login/doLogin",method = RequestMethod.POST,produces = "application/json;charset=utf-8")
    public String checkLogin(HttpSession session, @RequestParam String username, @RequestParam String password) {
        logger.info("管理员登录验证");
        Integer admin = adminService.login(username,password);

        JSONObject object = new JSONObject();
        if(admin == null){
            logger.info("登录验证失败");
            object.put("success",false);
        } else {
            logger.info("登录验证成功,管理员ID传入会话");
            session.setAttribute("adminId",admin);
            object.put("success",true);
        }

        return object.toJSONString();
    }

    //获取管理员头像路径-ajax
    @ResponseBody
    @RequestMapping(value = "admin/login/profile_picture",method = RequestMethod.GET,produces = "application/json;charset=utf-8")
    public String getAdminProfilePicture(@RequestParam String username){
        logger.info("根据用户名获取管理员头像路径");
        Admin admin = adminService.get(username,null);

        JSONObject object = new JSONObject();
        if(admin == null){
            logger.info("未找到头像路径");
            object.put("success",false);
        } else {
            logger.info("成功获取头像路径");
            object.put("success",true);
            object.put("srcString",admin.getAdmin_profile_picture_src());
        }

        return object.toJSONString();
    }
}

后台管理-分类页:

/**
 * 后台管理-分类页
 */
@Controller
public class CategoryController extends BaseController {
    @Autowired
    private CategoryService categoryService;
    @Autowired
    private LastIDService lastIDService;
    @Autowired
    private PropertyService propertyService;

    //转到后台管理-分类页-ajax
    @RequestMapping(value = "admin/category", method = RequestMethod.GET)
    public String goToPage(HttpSession session, Map<String, Object> map) {
        logger.info("检查管理员权限");
        Object adminId = checkAdmin(session);
        if (adminId == null) {
            return "admin/include/loginMessage";
        }

        logger.info("获取前10条分类列表");
        PageUtil pageUtil = new PageUtil(0, 10);
        List<Category> categoryList = categoryService.getList(null, pageUtil);
        map.put("categoryList", categoryList);
        logger.info("获取分类总数量");
        Integer categoryCount = categoryService.getTotal(null);
        map.put("categoryCount", categoryCount);
        logger.info("获取分页信息");
        pageUtil.setTotal(categoryCount);
        map.put("pageUtil", pageUtil);

        logger.info("转到后台管理-分类页-ajax方式");
        return "admin/categoryManagePage";
    }

    //转到后台管理-分类详情页-ajax
    @RequestMapping(value = "admin/category/{cid}", method = RequestMethod.GET)
    public String goToDetailsPage(HttpSession session, Map<String, Object> map, @PathVariable Integer cid/* 分类ID */) {
        logger.info("检查管理员权限");
        Object adminId = checkAdmin(session);
        if (adminId == null) {
            return "admin/include/loginMessage";
        }
        logger.info("获取category_id为{}的分类信息", cid);
        Category category = categoryService.get(cid);
        logger.info("获取分类子信息-属性列表");
        category.setPropertyList(propertyService.getList(new Property().setProperty_category(category), null));
        map.put("category", category);

        logger.info("转到后台管理-分类详情页-ajax方式");
        return "admin/include/categoryDetails";
    }

    //转到后台管理-分类添加页-ajax
    @RequestMapping(value = "admin/category/new", method = RequestMethod.GET)
    public String goToAddPage(HttpSession session, Map<String, Object> map) {
        logger.info("检查管理员权限");
        Object adminId = checkAdmin(session);
        if (adminId == null) {
            return "admin/include/loginMessage";
        }

        logger.info("转到后台管理-分类添加页-ajax方式");
        return "admin/include/categoryDetails";
    }

    //添加分类信息-ajax
    @ResponseBody
    @RequestMapping(value = "admin/category", method = RequestMethod.POST, produces = "application/json;charset=utf-8")
    public String addCategory(@RequestParam String category_name/* 分类名称 */,
                              @RequestParam String category_image_src/* 分类图片路径 */) {
        JSONObject jsonObject = new JSONObject();
        logger.info("整合分类信息");
        Category category = new Category()
                .setCategory_name(category_name)
                .setCategory_image_src(category_image_src.substring(category_image_src.lastIndexOf("/") + 1));
        logger.info("添加分类信息");
        boolean yn = categoryService.add(category);
        if (yn) {
            int category_id = lastIDService.selectLastID();
            logger.info("添加成功!,新增分类的ID值为:{}", category_id);
            jsonObject.put("success", true);
            jsonObject.put("category_id", category_id);
        } else {
            jsonObject.put("success", false);
            logger.warn("添加失败!事务回滚");
            throw new RuntimeException();
        }

        return jsonObject.toJSONString();
    }

    //更新分类信息-ajax
    @ResponseBody
    @RequestMapping(value = "admin/category/{category_id}", method = RequestMethod.PUT, produces = "application/json;charset=utf-8")
    public String updateCategory(@RequestParam String category_name/* 分类名称 */,
                                 @RequestParam String category_image_src/* 分类图片路径 */,
                                 @PathVariable("category_id") Integer category_id/* 分类ID */) {
        JSONObject jsonObject = new JSONObject();
        logger.info("整合分类信息");
        Category category = new Category()
                .setCategory_id(category_id)
                .setCategory_name(category_name)
                .setCategory_image_src(category_image_src.substring(category_image_src.lastIndexOf("/") + 1));
        logger.info("更新分类信息,分类ID值为:{}", category_id);
        boolean yn = categoryService.update(category);
        if (yn) {
            logger.info("更新成功!");
            jsonObject.put("success", true);
            jsonObject.put("category_id", category_id);
        } else {
            jsonObject.put("success", false);
            logger.info("更新失败!事务回滚");
            throw new RuntimeException();
        }

        return jsonObject.toJSONString();
    }

    //按条件查询分类-ajax
    @ResponseBody
    @RequestMapping(value = "admin/category/{index}/{count}", method = RequestMethod.GET, produces = "application/json;charset=utf-8")
    public String getCategoryBySearch(@RequestParam(required = false) String category_name/* 分类名称 */,
                                      @PathVariable Integer index/* 页数 */,
                                      @PathVariable Integer count/* 行数 */) throws UnsupportedEncodingException {
        //移除不必要条件
        if (category_name != null) {
            //如果为非空字符串则解决中文乱码:URLDecoder.decode(String,"UTF-8");
            category_name = "".equals(category_name) ? null : URLDecoder.decode(category_name, "UTF-8");
        }

        JSONObject object = new JSONObject();
        logger.info("按条件获取第{}页的{}条分类", index + 1, count);
        PageUtil pageUtil = new PageUtil(index, count);
        List<Category> categoryList = categoryService.getList(category_name, pageUtil);
        object.put("categoryList", JSONArray.parseArray(JSON.toJSONString(categoryList)));
        logger.info("按条件获取分类总数量");
        Integer categoryCount = categoryService.getTotal(category_name);
        object.put("categoryCount", categoryCount);
        logger.info("获取分页信息");
        pageUtil.setTotal(categoryCount);
        object.put("totalPage", pageUtil.getTotalPage());
        object.put("pageUtil", pageUtil);

        return object.toJSONString();
    }

    // 上传分类图片-ajax
    @ResponseBody
    @RequestMapping(value = "admin/uploadCategoryImage", method = RequestMethod.POST, produces = "application/json;charset=utf-8")
    public String uploadCategoryImage(@RequestParam MultipartFile file, HttpSession session) {
        String originalFileName = file.getOriginalFilename();
        logger.info("获取图片原始文件名:  {}", originalFileName);
        String extension = originalFileName.substring(originalFileName.lastIndexOf('.'));
        String fileName = UUID.randomUUID() + extension;
        String filePath = session.getServletContext().getRealPath("/") + "res/images/item/categoryPicture/" + fileName;

        logger.info("文件上传路径:{}", filePath);
        JSONObject object = new JSONObject();
        try {
            logger.info("文件上传中...");
            file.transferTo(new File(filePath));
            logger.info("文件上传完成");
            object.put("success", true);
            object.put("fileName", fileName);
        } catch (IOException e) {
            logger.warn("文件上传失败!");
            e.printStackTrace();
            object.put("success", false);
        }

        return object.toJSONString();
    }
}

后台管理-订单页: 

/**
 * 后台管理-订单页
 */
@Controller
public class OrderController extends BaseController{
    @Autowired
    private ProductOrderService productOrderService;
    @Autowired
    private AddressService addressService;
    @Autowired
    private UserService userService;
    @Autowired
    private ProductOrderItemService productOrderItemService;
    @Autowired
    private ProductService productService;
    @Autowired
    private ProductImageService productImageService;
    @Autowired
    private LastIDService lastIDService;

    //转到后台管理-订单页-ajax
    @RequestMapping(value = "admin/order", method = RequestMethod.GET)
    public String goToPage(HttpSession session, Map<String, Object> map){
        logger.info("检查管理员权限");
        Object adminId = checkAdmin(session);
        if(adminId == null){
            return "admin/include/loginMessage";
        }

        logger.info("获取前10条订单列表");
        PageUtil pageUtil = new PageUtil(0, 10);
        List<ProductOrder> productOrderList = productOrderService.getList(null, null, new OrderUtil("productOrder_id", true), pageUtil);
        map.put("productOrderList",productOrderList);
        logger.info("获取订单总数量");
        Integer productOrderCount = productOrderService.getTotal(null, null);
        map.put("productOrderCount", productOrderCount);
        logger.info("获取分页信息");
        pageUtil.setTotal(productOrderCount);
        map.put("pageUtil", pageUtil);

        logger.info("转到后台管理-订单页-ajax方式");
        return "admin/orderManagePage";
    }

    //转到后台管理-订单详情页-ajax
    @RequestMapping(value = "admin/order/{oid}", method = RequestMethod.GET)
    public String goToDetailsPage(HttpSession session, Map<String, Object> map, @PathVariable Integer oid/* 订单ID */) {
        logger.info("检查管理员权限");
        Object adminId = checkAdmin(session);
        if(adminId == null){
            return "admin/include/loginMessage";
        }

        logger.info("获取order_id为{}的订单信息",oid);
        ProductOrder order = productOrderService.get(oid);
        logger.info("获取订单详情-地址信息");
        Address address = addressService.get(order.getProductOrder_address().getAddress_areaId());
        Stack<String> addressStack = new Stack<>();
        //详细地址
        addressStack.push(order.getProductOrder_detail_address());
        //最后一级地址
        addressStack.push(address.getAddress_name() + " ");
        //如果不是第一级地址
        while (!address.getAddress_areaId().equals(address.getAddress_regionId().getAddress_areaId())) {
            address = addressService.get(address.getAddress_regionId().getAddress_areaId());
            addressStack.push(address.getAddress_name() + " ");
        }
        StringBuilder builder = new StringBuilder();
        while (!addressStack.empty()) {
            builder.append(addressStack.pop());
        }
        logger.warn("订单地址字符串:{}", builder);
        order.setProductOrder_detail_address(builder.toString());
        logger.info("获取订单详情-用户信息");
        order.setProductOrder_user(userService.get(order.getProductOrder_user().getUser_id()));
        logger.info("获取订单详情-订单项信息");
        List<ProductOrderItem> productOrderItemList = productOrderItemService.getListByOrderId(oid, null);
        if (productOrderItemList != null) {
            logger.info("获取订单详情-订单项对应的产品信息");
            for (ProductOrderItem productOrderItem : productOrderItemList) {
                Integer productId = productOrderItem.getProductOrderItem_product().getProduct_id();
                logger.warn("获取产品ID为{}的产品信息", productId);
                Product product = productService.get(productId);
                if (product != null) {
                    logger.warn("获取产品ID为{}的第一张预览图片信息", productId);
                    product.setSingleProductImageList(productImageService.getList(productId, (byte) 0, new PageUtil(0, 1)));
                }
                productOrderItem.setProductOrderItem_product(product);
            }
        }
        order.setProductOrderItemList(productOrderItemList);
        map.put("order", order);
        logger.info("转到后台管理-订单详情页-ajax方式");
        return "admin/include/orderDetails";
    }

    //更新订单信息-ajax
    @ResponseBody
    @RequestMapping(value = "admin/order/{order_id}", method = RequestMethod.PUT, produces = "application/json;charset=UTF-8")
    public String updateOrder(@PathVariable("order_id") String order_id) {
        JSONObject jsonObject = new JSONObject();
        logger.info("整合订单信息");
        ProductOrder productOrder = new ProductOrder()
                .setProductOrder_id(Integer.valueOf(order_id))
                .setProductOrder_status((byte) 2)
                .setProductOrder_delivery_date(new Date());
        logger.info("更新订单信息,订单ID值为:{}", order_id);
        boolean yn = productOrderService.update(productOrder);
        if (yn) {
            logger.info("更新成功!");
            jsonObject.put("success", true);
        } else {
            logger.info("更新失败!事务回滚");
            jsonObject.put("success", false);
            throw new RuntimeException();
        }
        jsonObject.put("order_id", order_id);
        return jsonObject.toJSONString();
    }

    //按条件查询订单-ajax
    @ResponseBody
    @RequestMapping(value = "admin/order/{index}/{count}", method = RequestMethod.GET, produces = "application/json;charset=UTF-8")
    public String getOrderBySearch(@RequestParam(required = false) String productOrder_code/* 订单号 */,
                                   @RequestParam(required = false) String productOrder_post/* 订单邮政编码 */,
                                   @RequestParam(required = false) Byte[] productOrder_status_array/* 订单状态数组 */,
                                   @RequestParam(required = false) String orderBy/* 排序字段 */,
                                   @RequestParam(required = false,defaultValue = "true") Boolean isDesc/* 是否倒序 */,
                                   @PathVariable Integer index/* 页数 */,
                                   @PathVariable Integer count/* 行数 */){
        //移除不必要条件
        if (productOrder_status_array != null && (productOrder_status_array.length <= 0 || productOrder_status_array.length >=5)) {
            productOrder_status_array = null;
        }
        if (productOrder_code != null){
            productOrder_code = "".equals(productOrder_code) ? null : productOrder_code;
        }
        if(productOrder_post != null){
            productOrder_post = "".equals(productOrder_post) ? null : productOrder_post;
        }
        if (orderBy != null && "".equals(orderBy)) {
            orderBy = null;
        }
        //封装查询条件
        ProductOrder productOrder = new ProductOrder()
                .setProductOrder_code(productOrder_code)
                .setProductOrder_post(productOrder_post);
        OrderUtil orderUtil = null;
        if (orderBy != null) {
            logger.info("根据{}排序,是否倒序:{}",orderBy,isDesc);
            orderUtil = new OrderUtil(orderBy, isDesc);
        }

        JSONObject object = new JSONObject();
        logger.info("按条件获取第{}页的{}条订单", index + 1, count);
        PageUtil pageUtil = new PageUtil(index, count);
        List<ProductOrder> productOrderList = productOrderService.getList(productOrder, productOrder_status_array, orderUtil, pageUtil);
        object.put("productOrderList", JSONArray.parseArray(JSON.toJSONString(productOrderList)));
        logger.info("按条件获取订单总数量");
        Integer productOrderCount = productOrderService.getTotal(productOrder, productOrder_status_array);
        object.put("productOrderCount", productOrderCount);
        logger.info("获取分页信息");
        pageUtil.setTotal(productOrderCount);
        object.put("totalPage", pageUtil.getTotalPage());
        object.put("pageUtil", pageUtil);

        return object.toJSONString();
    }
}

 后台管理-用户页:

/**
 * 后台管理-用户页
 */
@Controller
public class UserController extends BaseController {
    @Autowired
    private UserService userService;
    @Autowired
    private AddressService addressService;
    @Autowired
    private ReviewService reviewService;
    @Autowired
    private ProductOrderItemService productOrderItemService;
    @Autowired
    private ProductService productService;
    @Autowired
    private ProductImageService productImageService;

    //转到后台管理-用户页-ajax
    @RequestMapping(value = "admin/user", method = RequestMethod.GET)
    public String goUserManagePage(HttpSession session, Map<String, Object> map) {
        logger.info("检查管理员权限");
        Object adminId = checkAdmin(session);
        if (adminId == null) {
            return "admin/include/loginMessage";
        }

        logger.info("获取前十条用户信息");
        PageUtil pageUtil = new PageUtil(0, 10);
        List<User> userList = userService.getList(null, null, pageUtil);
        map.put("userList", userList);
        logger.info("获取用户总数量");
        Integer userCount = userService.getTotal(null);
        map.put("userCount", userCount);
        logger.info("获取分页信息");
        pageUtil.setTotal(userCount);
        map.put("pageUtil", pageUtil);

        logger.info("转到后台管理-用户页-ajax方式");
        return "admin/userManagePage";
    }


    //转到后台管理-用户详情页-ajax
    @RequestMapping(value = "admin/user/{uid}", method = RequestMethod.GET)
    public String getUserById(HttpSession session, Map<String, Object> map, @PathVariable Integer uid/* 用户ID */) {
        logger.info("检查管理员权限");
        Object adminId = checkAdmin(session);
        if (adminId == null) {
            return "admin/include/loginMessage";
        }

        logger.info("获取user_id为{}的用户信息", uid);
        User user = userService.get(uid);
        logger.info("获取用户详情-所在地地址信息");
        Address address = addressService.get(user.getUser_address().getAddress_areaId());
        Stack<String> addressStack = new Stack<>();
        //最后一级地址
        addressStack.push(address.getAddress_name() + " ");
        //如果不是第一级地址
        while (!address.getAddress_areaId().equals(address.getAddress_regionId().getAddress_areaId())) {
            address = addressService.get(address.getAddress_regionId().getAddress_areaId());
            addressStack.push(address.getAddress_name() + " ");
        }
        StringBuilder builder = new StringBuilder();
        while (!addressStack.empty()) {
            builder.append(addressStack.pop());
        }
        logger.info("所在地地址字符串:{}", builder);
        user.setUser_address(new Address().setAddress_name(builder.toString()));

        logger.info("获取用户详情-家乡地址信息");
        address = addressService.get(user.getUser_homeplace().getAddress_areaId());
        //最后一级地址
        addressStack.push(address.getAddress_name() + " ");
        //如果不是第一级地址
        while (!address.getAddress_areaId().equals(address.getAddress_regionId().getAddress_areaId())) {
            address = addressService.get(address.getAddress_regionId().getAddress_areaId());
            addressStack.push(address.getAddress_name() + " ");
        }
        builder = new StringBuilder();
        while (!addressStack.empty()) {
            builder.append(addressStack.pop());
        }
        logger.info("家乡地址字符串:{}", builder);
        user.setUser_homeplace(new Address().setAddress_name(builder.toString()));

        logger.info("获取用户详情-购物车订单项信息");
        List<ProductOrderItem> productOrderItemList = productOrderItemService.getListByUserId(user.getUser_id(), null);
        if (productOrderItemList != null) {
            logger.info("获取用户详情-购物车订单项对应的产品信息");
            for (ProductOrderItem productOrderItem : productOrderItemList) {
                Integer productId = productOrderItem.getProductOrderItem_product().getProduct_id();
                logger.warn("获取产品ID为{}的产品信息", productId);
                Product product = productService.get(productId);
                if (product != null) {
                    logger.warn("获取产品ID为{}的第一张预览图片信息", productId);
                    product.setSingleProductImageList(productImageService.getList(productId, (byte) 0, new PageUtil(0, 1)));
                }
                productOrderItem.setProductOrderItem_product(product);
            }
        }
        user.setProductOrderItemList(productOrderItemList);

        if (!StringUtils.isEmpty(user.getUser_realname())) {
            logger.info("用户隐私加密");
            user.setUser_realname(user.getUser_realname().substring(0, 1) + "*");
        } else {
            user.setUser_realname("未命名");
        }

        map.put("user", user);

        logger.info("转到后台管理-用户详情页-ajax方式");
        return "admin/include/userDetails";
    }

    //按条件查询用户-ajax
    @ResponseBody
    @RequestMapping(value = "admin/user/{index}/{count}", method = RequestMethod.GET, produces = "application/json;charset=UTF-8")
    public String getUserBySearch(@RequestParam(required = false) String user_name/* 用户名称 */,
                                  @RequestParam(required = false) Byte[] user_gender_array/* 用户性别数组 */,
                                  @RequestParam(required = false) String orderBy/* 排序字段 */,
                                  @RequestParam(required = false, defaultValue = "true") Boolean isDesc/* 是否倒序 */,
                                  @PathVariable Integer index/* 页数 */,
                                  @PathVariable Integer count/* 行数 */) throws UnsupportedEncodingException {
        //移除不必要条件
        Byte gender = null;
        if (user_gender_array != null && user_gender_array.length == 1) {
            gender = user_gender_array[0];
        }

        if (user_name != null) {
            //如果为非空字符串则解决中文乱码:URLDecoder.decode(String,"UTF-8");
            user_name = "".equals(user_name) ? null : URLDecoder.decode(user_name, "UTF-8");
        }
        if (orderBy != null && "".equals(orderBy)) {
            orderBy = null;
        }
        //封装查询条件
        User user = new User()
                .setUser_name(user_name)
                .setUser_gender(gender);

        OrderUtil orderUtil = null;
        if (orderBy != null) {
            logger.info("根据{}排序,是否倒序:{}", orderBy, isDesc);
            orderUtil = new OrderUtil(orderBy, isDesc);
        }

        JSONObject object = new JSONObject();
        logger.info("按条件获取第{}页的{}条用户", index + 1, count);
        PageUtil pageUtil = new PageUtil(index, count);
        List<User> userList = userService.getList(user, orderUtil, pageUtil);
        object.put("userList", JSONArray.parseArray(JSON.toJSONString(userList)));
        logger.info("按条件获取用户总数量");
        Integer userCount = userService.getTotal(user);
        object.put("userCount", userCount);
        logger.info("获取分页信息");
        pageUtil.setTotal(userCount);
        object.put("totalPage", pageUtil.getTotalPage());
        object.put("pageUtil", pageUtil);

        return object.toJSONString();
    }
}

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转载自blog.csdn.net/yuyecsdn/article/details/124290220