实战SSM_O2O商铺_18【商铺编辑】Controller层开发

概述

按照需求设计，我们希望商铺管理者

• 店铺名称不能修改

• 店铺类别不能修改

• 其余信息可编辑修改

分为两步，

• 第一步前端传入shopId到后台获取商铺信息，前端展示
• 第二步修改商铺信息，提交到后台，更新商铺

---

ShopController

com.artisan.o2o.web.shopadmin.ShopController.java

ShopController#getShopInfoById方法

getShopInfoById

/**
     * 
     * 
     * @Title: getShopInfoById
     * 
     * @Description: 根据shopId获取shop信息， 接收前端的请求，获取shopId ，所以入参为HttpServletRequest
     * @ResponseBody 不需要VIEW展现层模块，直接显示到客户端的内容。 将内容或对象作为 HTTP 响应正文返回
     * 
     * @param request
     * 
     * @return: Map<String,Object>
     */
    @RequestMapping(value = "/getshopinfo", method = RequestMethod.GET)
    @ResponseBody
    public Map<String, Object> getShopInfoById(HttpServletRequest request) {
        Map<String, Object> modelMap = new HashMap<String, Object>();
        // shopId 为和前端约定好的变量
        int shopId = HttPServletRequestUtil.getInt(request, "shopId");
        try {
            if (shopId >= 0) {
                // 查询 ，按照设计，我们希望前端页面下拉列表中可以修改区域信息，所以需要查询出来全量的区域列表
                // 对已ShopCategory而言，我们DAO层的SQL已经将shop_category_id和
                // shop_category_name 查询出来，前端设置到对应的属性上即可。没有必要全部查询出来。
                Shop shop = shopService.getShopById(shopId);
                List<Area> areaList = areaservice.getAreaList();

                modelMap.put("success", true);
                modelMap.put("shop", shop);
                modelMap.put("areaList", areaList);
            } else {
                modelMap.put("success", false);
                modelMap.put("errMsg", "shopId不合法");
            }
        } catch (Exception e) {
            modelMap.put("success", false);
            modelMap.put("errMsg", e.getMessage());
        }
        return modelMap;
    }

测试

启动tomcat，访问 http://localhost:8080/o2o/shopadmin/getshopinfo?shopId=30

返回的数据如下：

{
    "shop": {
        "shopId": 30,
        "shopName": "优乐美",
        "shopDesc": "优乐美奶茶店",
        "shopAddr": "复兴街",
        "phone": "123456",
        "shopImg": "\\upload\\item\\shopImage\\30\\2018053001010899137.png",
        "priority": null,
        "createTime": 1527656467000,
        "lastEditTime": 1527656467000,
        "enableStatus": 0,
        "advice": null,
        "owner": null,
        "area": {
            "areaId": 1,
            "areaName": "北京",
            "areaDesc": null,
            "priority": null,
            "createTime": null,
            "lastEditTime": null
        },
        "shopCategory": {
            "shopCategoryId": 3,
            "shopCategoryName": "奶茶",
            "shopCategoryDesc": null,
            "shopCategoryImg": null,
            "priority": null,
            "createTime": null,
            "lastEditTime": null,
            "parent": null
        }
    },
    "success": true,
    "areaList": [
        {
            "areaId": 2,
            "areaName": "上海",
            "areaDesc": "魔都",
            "priority": 99,
            "createTime": 1526259636000,
            "lastEditTime": 1526346041000
        },
        {
            "areaId": 1,
            "areaName": "北京",
            "areaDesc": "帝都",
            "priority": 0,
            "createTime": 1526259626000,
            "lastEditTime": 1526346033000
        }
    ]
}

检查数据，符合预期。

---

ShopController#modifyShop方法