实战SSM_O2O商铺_41【前端展示】店铺列表页面Dao+Service+Controller层的实现

文章目录

• 概述
• Dao层
• • 接口
  • 映射文件
  • 单元测试
• Service层
• • 接口方法
  • 单元测试
• Controller层
• • 增加 ShopListController
  • 单元测试
• Github地址

概述

在完成了首页轮播图和首页商品分类的展示之后，

按照页面原型设计

• 点击全部商店后加载一级商铺列表，加载对应的数据
• 点击特定的一级商铺列表，加载对应商铺列表下的数据
• 区域显示全部区域
• 店铺列表页面需要支持分页功能，使用无极滚动的样式
• 店铺列表页面需要支持多条件排列组合查询店铺信息

如下

---

Dao层

接口

复用ShopDao#selectShopList方法

代码语言：javascript复制

	List<Shop> selectShopList(@Param("shopCondition") Shop shopCondition, @Param("rowIndex") int rowIndex, @Param("pageSize") int pageSize);

---

映射文件

增加如下查询条件，满足当用户点击某个一级商铺类别的时候，加载改商铺类别下全部的商铺。

代码语言：javascript复制

	<!-- 选择了某个大类，列举出该大类下面的全部商店   以parent_id来筛选  -->
		<if test="shopCondition.shopCategory != null 
			and shopCondition.shopCategory.parent != null
			and shopCondition.shopCategory.parent.shopCategoryId != null ">
			and s.shop_category_id in (
				select shop_category_id 
					from  tb_shop_category 
					where parent_id =  #{shopCondition.shopCategory.parent.shopCategoryId}
				)
		</if>

---

单元测试

表中的数据

代码语言：javascript复制

@Test
	public void testSelectShopListAndCount2() {

		// 根据表中的数据 共计6条数据
		// 其中 2条 属于 【咖啡】二级商铺类别
		// 其中 2条 属于 【奶茶】二级商铺类别
		// 其中 2条 属于 【考研辅导】二级商铺类别

		// 而 【咖啡】和【奶茶】二级商铺类别 属于 【美食饮品】一级商铺类别

		// 模拟用户点击【美食饮品】，查询出来属于 【美食饮品】下面的商铺 ,
		// 期望符合条件的数据为 2条 属于 【咖啡】二级商铺类别的店铺   2条 属于 【奶茶】二级商铺类别 的店铺
		
		/**
		 * 
		 *   and
		 * s.shop_category_id in ( select shop_category_id from tb_shop_category
		 * where parent_id = #{shopCondition.shopCategory.parent.shopCategoryId}
		 * ) 
		 * 
		 * 
		 * 
		 */
		
		
		
		Shop shopCondition = new Shop();
		// 模拟
		ShopCategory childShopCategory = new ShopCategory();
		ShopCategory parentShopCategory = new ShopCategory();
		// 设置父类的shopCategoryId
		parentShopCategory.setShopCategoryId(3L);
		// 设置父子关系
		childShopCategory.setParent(parentShopCategory);

		// 设置目录
		shopCondition.setShopCategory(childShopCategory);

		List<Shop> shoplist = shopDao.selectShopList(shopCondition, 0, 5);
		int count = shopDao.selectShopCount(shopCondition);
		Assert.assertEquals(4, shoplist.size());
		Assert.assertEquals(4, count);
		for (Shop shop : shoplist) {
			System.out.println(shop.toString());
		}

	}

日志

代码语言：javascript复制

==>  Preparing: SELECT s.shop_id, s.shop_name, s.shop_desc, s.shop_addr, s.phone, s.shop_img, s.priority, s.create_time, s.last_edit_time, s.enable_status, s.advice, a.area_id, a.area_name, sc.shop_category_id, sc.shop_category_name FROM tb_shop s, tb_area a, tb_shop_category sc WHERE s.shop_category_id in ( select shop_category_id from tb_shop_category where parent_id = ? ) AND s.area_id = a.area_id AND s.shop_category_id = sc.shop_category_id ORDER BY s.priority DESC LIMIT ? , ? 
Sat Aug 04 11:44:36 CST 2018 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45 , 5.6.26  and 5.7.6  requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
Sat Aug 04 11:44:36 CST 2018 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45 , 5.6.26  and 5.7.6  requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
==> Parameters: 3(Long), 0(Integer), 5(Integer)
<==    Columns: shop_id, shop_name, shop_desc, shop_addr, phone, shop_img, priority, create_time, last_edit_time, enable_status, advice, area_id, area_name, shop_category_id, shop_category_name
<==        Row: 4, 咖啡店1, 咖啡店1简介, 东方明珠, 1234, uploaditemshopImage42018072718443825588.jpg, 99, 2018-07-27 10:44:39, 2018-07-27 10:44:39, 1, null, 2, 上海, 7, 咖啡
<==        Row: 5, 咖啡店2, 咖啡店2简介, 上海某地, 123456, uploaditemshopImage52018080410065694536.jpg, 98, 2018-08-04 02:06:56, 2018-08-04 02:35:51, 1, Waring UP, 2, 上海, 7, 咖啡
<==        Row: 6, 奶茶店1, 奶茶店1简介, 东直门, 654321, uploaditemshopImage62018080410074110364.jpg, 97, 2018-08-04 02:07:42, 2018-08-04 02:07:42, 1, null, 1, 北京, 9, 奶茶
<==        Row: 7, 奶茶店2, 奶茶店2简介, 798艺术区, 56789, uploaditemshopImage72018080410094723088.jpg, 96, 2018-08-04 02:09:48, 2018-08-04 02:09:48, 1, null, 1, 北京, 9, 奶茶
<==      Total: 4
Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@78641d23]
Creating a new SqlSession
SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@2c1156a7] was not registered for synchronization because synchronization is not active
JDBC Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@691939c9] will not be managed by Spring
==>  Preparing: SELECT count(1) FROM tb_shop s, tb_area a, tb_shop_category sc WHERE s.shop_category_id in ( select shop_category_id from tb_shop_category where parent_id = ? ) AND s.area_id = a.area_id AND s.shop_category_id = sc.shop_category_id 
==> Parameters: 3(Long)
<==    Columns: count(1)
<==        Row: 4
<==      Total: 1
Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@2c1156a7]
Shop [shopId=4, shopName=咖啡店1, shopDesc=咖啡店1简介, shopAddr=东方明珠, phone=1234, shopImg=uploaditemshopImage42018072718443825588.jpg, priority=99, createTime=Fri Jul 27 18:44:39 CST 2018, lastEditTime=Fri Jul 27 18:44:39 CST 2018, enableStatus=1, advice=null, owner=null, area=Area [areaId=2, areaName=上海, areaDesc=null, priority=null, createTime=null, lastEditTime=null], shopCategory=ShopCategory [shopCategoryId=7, shopCategoryName=咖啡, shopCategoryDesc=null, shopCategoryImg=null, priority=null, createTime=null, lastEditTime=null, parent=null]]
Shop [shopId=5, shopName=咖啡店2, shopDesc=咖啡店2简介, shopAddr=上海某地, phone=123456, shopImg=uploaditemshopImage52018080410065694536.jpg, priority=98, createTime=Sat Aug 04 10:06:56 CST 2018, lastEditTime=Sat Aug 04 10:35:51 CST 2018, enableStatus=1, advice=Waring UP, owner=null, area=Area [areaId=2, areaName=上海, areaDesc=null, priority=null, createTime=null, lastEditTime=null], shopCategory=ShopCategory [shopCategoryId=7, shopCategoryName=咖啡, shopCategoryDesc=null, shopCategoryImg=null, priority=null, createTime=null, lastEditTime=null, parent=null]]
Shop [shopId=6, shopName=奶茶店1, shopDesc=奶茶店1简介, shopAddr=东直门, phone=654321, shopImg=uploaditemshopImage62018080410074110364.jpg, priority=97, createTime=Sat Aug 04 10:07:42 CST 2018, lastEditTime=Sat Aug 04 10:07:42 CST 2018, enableStatus=1, advice=null, owner=null, area=Area [areaId=1, areaName=北京, areaDesc=null, priority=null, createTime=null, lastEditTime=null], shopCategory=ShopCategory [shopCategoryId=9, shopCategoryName=奶茶, shopCategoryDesc=null, shopCategoryImg=null, priority=null, createTime=null, lastEditTime=null, parent=null]]
Shop [shopId=7, shopName=奶茶店2, shopDesc=奶茶店2简介, shopAddr=798艺术区, phone=56789, shopImg=uploaditemshopImage72018080410094723088.jpg, priority=96, createTime=Sat Aug 04 10:09:48 CST 2018, lastEditTime=Sat Aug 04 10:09:48 CST 2018, enableStatus=1, advice=null, owner=null, area=Area [areaId=1, areaName=北京, areaDesc=null, priority=null, createTime=null, lastEditTime=null], shopCategory=ShopCategory [shopCategoryId=9, shopCategoryName=奶茶, shopCategoryDesc=null, shopCategoryImg=null, priority=null, createTime=null, lastEditTime=null, parent=null]]
八月 04, 2018 11:44:37 上午 org.springframework.context.support.GenericApplicationContext doClose

---

Service层

接口方法

复用ShopService#getShopList

---

##接口实现类

ShopServiceImpl#getShopList

---

单元测试

因复用，之前已经单元测试通过，这里省略。

---

Controller层

增加 ShopListController

代码语言：javascript复制

package com.artisan.o2o.web.frontend;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import com.artisan.o2o.dto.ShopExecution;
import com.artisan.o2o.entity.Area;
import com.artisan.o2o.entity.Shop;
import com.artisan.o2o.entity.ShopCategory;
import com.artisan.o2o.service.AreaService;
import com.artisan.o2o.service.ShopCategoryService;
import com.artisan.o2o.service.ShopService;
import com.artisan.o2o.util.HttpServletRequestUtil;

@Controller
@RequestMapping("/frontend")
public class ShopListController {

	@Autowired
	private ShopService shopService;
	@Autowired
	private AreaService areaService;
	@Autowired
	private ShopCategoryService shopCategoryService;

	@RequestMapping(value = "/listshopspageinfo", method = RequestMethod.GET)
	@ResponseBody
	private Map<String, Object> listShopsPageInfo(HttpServletRequest request) {
		Map<String, Object> modelMap = new HashMap<String, Object>();
		long parentId = HttpServletRequestUtil.getLong(request, "parentId");
		List<ShopCategory> shopCategoryList = null;
		// parentId不为空，查询出对应parentId目录下的全部商品目录
		if (parentId != -1) {
			try {
				ShopCategory childCategory = new ShopCategory();
				ShopCategory parentCategory = new ShopCategory();
				parentCategory.setShopCategoryId(parentId);
				childCategory.setParent(parentCategory);
				shopCategoryList = shopCategoryService.getShopCategoryList(childCategory);
			} catch (Exception e) {
				modelMap.put("success", false);
				modelMap.put("errMsg", e.toString());
			}
		} else {
			// parentId为空，查询出一级的shopCategory
			try {
				shopCategoryList = shopCategoryService.getShopCategoryList(null);
			} catch (Exception e) {
				modelMap.put("success", false);
				modelMap.put("errMsg", e.toString());
			}
		}
		modelMap.put("shopCategoryList", shopCategoryList);
		List<Area> areaList = null;
		try {
			areaList = areaService.getAreaList();
			modelMap.put("areaList", areaList);
			modelMap.put("success", true);
			return modelMap;
		} catch (Exception e) {
			modelMap.put("success", false);
			modelMap.put("errMsg", e.toString());
		}
		return modelMap;
	}

	@RequestMapping(value = "/listshops", method = RequestMethod.GET)
	@ResponseBody
	private Map<String, Object> listShops(HttpServletRequest request) {
		Map<String, Object> modelMap = new HashMap<String, Object>();
		int pageIndex = HttpServletRequestUtil.getInt(request, "pageIndex");
		int pageSize = HttpServletRequestUtil.getInt(request, "pageSize");
		if ((pageIndex > -1) && (pageSize > -1)) {
			long parentId = HttpServletRequestUtil.getLong(request, "parentId");
			long shopCategoryId = HttpServletRequestUtil.getLong(request, "shopCategoryId");
			int areaId = HttpServletRequestUtil.getInt(request, "areaId");
			String shopName = HttpServletRequestUtil.getString(request, "shopName");
			// 封装查询条件
			Shop shopCondition = compactShopCondition4Search(parentId, shopCategoryId, areaId, shopName);
			// 调用service层提供的方法
			ShopExecution se = shopService.getShopList(shopCondition, pageIndex, pageSize);
			modelMap.put("shopList", se.getShopList());
			modelMap.put("count", se.getCount());
			modelMap.put("success", true);
		} else {
			modelMap.put("success", false);
			modelMap.put("errMsg", "empty pageSize or pageIndex");
		}

		return modelMap;
	}

	private Shop compactShopCondition4Search(long parentId, long shopCategoryId, int areaId, String shopName) {
		Shop shopCondition = new Shop();
		if (parentId != -1L) {
			ShopCategory childCategory = new ShopCategory();
			ShopCategory parentCategory = new ShopCategory();
			parentCategory.setShopCategoryId(parentId);
			childCategory.setParent(parentCategory);
			shopCondition.setShopCategory(childCategory);
		}
		if (shopCategoryId != -1L) {
			ShopCategory shopCategory = new ShopCategory();
			shopCategory.setShopCategoryId(shopCategoryId);
			shopCondition.setShopCategory(shopCategory);
		}
		if (areaId != -1L) {
			Area area = new Area();
			area.setAreaId(areaId);
			shopCondition.setArea(area);
		}

		if (shopName != null) {
			shopCondition.setShopName(shopName);
		}
		// 查询状态为审核通过的商铺
		shopCondition.setEnableStatus(1);
		return shopCondition;
	}

}

单元测试

启动tomcat，可以以debug的方式调测

分别对两个路由方法进行测试类，访问如下URL

代码语言：javascript复制

http://localhost:8080/o2o/frontend/listshopspageinfo

http://localhost:8080/o2o/frontend/listshopspageinfo?parentId=5

和

代码语言：javascript复制

http://localhost:8080/o2o/frontend/listshops?pageIndex=1&pageSize=3

http://localhost:8080/o2o/frontend/listshops?pageIndex=1&pageSize=3&parentId=3

http://localhost:8080/o2o/frontend/listshops?pageIndex=1&pageSize=3&parentId=3&shopName=咖啡

观察返回的json数据，是否符合预期。

---

Github地址

代码地址： https://github.com/yangshangwei/o2o

单元测试 git github 开源 编程算法

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