[资源下载] 【郑州校区】传智健康项目讲义第七章四

【郑州校区】传智健康项目讲义第七章四

2.2 后台代码
2.2.1 Controller
在health_mobile工程中创建OrderController并提供submitOrder方法

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package com.itheima.controller;
import com.alibaba.dubbo.config.annotation.Reference;
import com.aliyuncs.exceptions.ClientException;
import com.itheima.constant.MessageConstant;
import com.itheima.constant.RedisConstant;
import com.itheima.constant.RedisMessageConstant;
import com.itheima.entity.Result;
import com.itheima.pojo.Member;
import com.itheima.pojo.Order;
import com.itheima.pojo.Setmeal;
import com.itheima.service.OrderService;
import com.itheima.utils.JedisUtils;
import com.itheima.utils.SMSUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import redis.clients.jedis.JedisPool;
import java.util.HashMap;
import java.util.Map;
/**
* 体检预约
*/
@RestController
@RequestMapping("/order")
public class OrderController {
@Reference
private OrderService orderService;
@Autowired
private JedisPool jedisPool;
/**
* 体检预约
* @param map
* @return
*/
@RequestMapping("/submit")
public Result submitOrder(@RequestBody Map map){String telephone = (String) map.get("telephone");
//从Redis中获取缓存的验证码，key为手机号
+RedisConstant.SENDTYPE_ORDER
String codeInRedis = jedisPool.getResource().get(
telephone + RedisMessageConstant.SENDTYPE_ORDER);
String validateCode = (String) map.get("validateCode");
//校验手机验证码
if(codeInRedis == null || !codeInRedis.equals(validateCode)){
return new Result(false, MessageConstant.VALIDATECODE_ERROR);
}
Result result =null;
//调用体检预约服务
try{
map.put("orderType", Order.ORDERTYPE_WEIXIN);
result = orderService.order(map);
}catch (Exception e){
e.printStackTrace();
//预约失败
return result;
}
if(result.isFlag()){
//预约成功，发送短信通知
String orderDate = (String) map.get("orderDate");
try {
SMSUtils.sendShortMessage(SMSUtils.ORDER_NOTICE,telephone,orderDate);
} catch (ClientException e) {
e.printStackTrace();
}
}
return result;
}
}

2.2.2 服务接口
在health_interface工程中创建体检预约服务接口OrderService并提供预约方法

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package com.itheima.service;
import com.itheima.entity.Result;
import java.util.Map;
/**
* 体检预约服务接口
*/
public interface OrderService {
//体检预约
public Result order(Map map) throws Exception;
}

2.2.3 服务实现类
在health_service_provider工程中创建体检预约服务实现类OrderServiceImpl并实现体检预约方法。
体检预约方法处理逻辑比较复杂，需要进行如下业务处理：
1、检查用户所选择的预约日期是否已经提前进行了预约设置，如果没有设置则无法进行预约
2、检查用户所选择的预约日期是否已经约满，如果已经约满则无法预约
3、检查用户是否重复预约（同一个用户在同一天预约了同一个套餐），如果是重复预约则无法完成再次预约
4、检查当前用户是否为会员，如果是会员则直接完成预约，如果不是会员则自动完成注册并进行预约
5、预约成功，更新当日的已预约人数
实现代码如下：

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package com.itheima.service;
import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.constant.MessageConstant;
import com.itheima.dao.MemberDao;
import com.itheima.dao.OrderDao;
import com.itheima.dao.OrderSettingDao;
import com.itheima.dao.SetmealDao;
import com.itheima.entity.Result;
import com.itheima.pojo.Member;
import com.itheima.pojo.Order;
import com.itheima.pojo.OrderSetting;
import com.itheima.pojo.Setmeal;
import com.itheima.utils.DateUtils;
import org.apache.poi.ss.usermodel.DateUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* 体检预约服务
*/
@Service(interfaceClass = OrderService.class)
@Transactional
public class OrderServiceImpl implements OrderService{
@Autowired
private OrderSettingDao orderSettingDao;
@Autowired
private MemberDao memberDao;
@Autowired
private OrderDao orderDao;
//体检预约
public Result order(Map map) throws Exception {
//检查当前日期是否进行了预约设置String orderDate = (String) map.get("orderDate");
Date date = DateUtils.parseString2Date(orderDate);
OrderSetting orderSetting =
orderSettingDao.findByOrderDate(date);
if(orderSetting == null){
return new Result(false,
MessageConstant.SELECTED_DATE_CANNOT_ORDER);
}
//检查预约日期是否预约已满
int number = orderSetting.getNumber();//可预约人数
int reservations = orderSetting.getReservations();//已预约人数
if(reservations >= number){
//预约已满，不能预约
return new Result(false,MessageConstant.ORDER_FULL);
}
//检查当前用户是否为会员，根据手机号判断
String telephone = (String) map.get("telephone");
Member member = memberDao.findByTelephone(telephone);
//防止重复预约
if(member != null){
Integer memberId = member.getId();
int setmealId = Integer.parseInt((String)
map.get("setmealId"));
Order order = new Order(memberId,date,null,null,setmealId);
List<Order> list = orderDao.findByCondition(order);
if(list != null && list.size() > 0){
//已经完成了预约，不能重复预约
return new Result(false,MessageConstant.HAS_ORDERED);
}
}
//可以预约，设置预约人数加一
orderSetting.setReservations(orderSetting.getReservations()+1);
orderSettingDao.editReservationsByOrderDate(orderSetting);
if(member == null){
//当前用户不是会员，需要添加到会员表
member = new Member();
member.setName((String) map.get("name"));member.setPhoneNumber(telephone);
member.setIdCard((String) map.get("idCard"));
member.setSex((String) map.get("sex"));
member.setRegTime(new Date());
memberDao.add(member);
}
//保存预约信息到预约表
Order order = new Order(member.getId(),
date,
(String)map.get("orderType"),
Order.ORDERSTATUS_NO,
Integer.parseInt((String)
map.get("setmealId")));
orderDao.add(order);
return new
Result(true,MessageConstant.ORDER_SUCCESS,order.getId());
}
}

2.2.4 Dao接口

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package com.itheima.dao;
import com.itheima.pojo.OrderSetting;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public interface OrderSettingDao {
public void add(OrderSetting orderSetting);
//更新可预约人数
public void editNumberByOrderDate(OrderSetting orderSetting);
//更新已预约人数
public void editReservationsByOrderDate(OrderSetting orderSetting);
public long findCountByOrderDate(Date orderDate);
//根据日期范围查询预约设置信息
public List<OrderSetting> getOrderSettingByMonth(Map date);
//根据预约日期查询预约设置信息
public OrderSetting findByOrderDate(Date orderDate);
}

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package com.itheima.dao;
import com.github.pagehelper.Page;
import com.itheima.pojo.Member;
import java.util.List;
public interface MemberDao {
public List<Member> findAll();
public Page<Member> selectByCondition(String queryString);
public void add(Member member);
public void deleteById(Integer id);
public Member findById(Integer id);
public Member findByTelephone(String telephone);
public void edit(Member member);
public Integer findMemberCountBeforeDate(String date);
public Integer findMemberCountByDate(String date);
public Integer findMemberCountAfterDate(String date);
public Integer findMemberTotalCount();
}

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package com.itheima.dao;
import com.itheima.pojo.Order;
import java.util.List;
import java.util.Map;
public interface OrderDao {
public void add(Order order);
public List<Order> findByCondition(Order order);
}

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[资源下载] 【郑州校区】传智健康项目讲义第七章 四

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[资源下载] 【郑州校区】传智健康项目讲义第七章四