尚品汇-结算页数据接口封装实现（三十九）

本文主要是介绍尚品汇-结算页数据接口封装实现（三十九），希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

目录：

（1）业务介绍

（2）结算页

（3） 在 service-user模块获取地址列表

（4）在service-user-client暴露远程接口

（5）在service-cart模块获取选中商品数据

（6）创建service-cart-client模块

（7）搭建service-order模块

（1）业务介绍

订单业务在整个电商平台中处于核心位置，也是比较复杂的一块业务。是把“物”变为“钱”的一个中转站。

      整个订单模块一共分四部分组成：

1. 结算
2. 下单
3. 对接支付服务
4. 对接库存管理系统

（2）结算页

 入口：购物车点击计算按钮 ，结算必须要登录！

分析页面需要的数据：

1. 需要用户地址信息
2. 购物车中选择的商品列表
3. 用户地址信息在service-user模块，购物车信息在service-cart模块，所以我们要在相应模块提供api接口，通过feign client调用获取数据

点击结算到结算页的流程：

 

（3） 在 service-user模块获取地址列表

 

添加mapper

package com.atguigu.gmall.user.mapper;@Mapper
public interface UserAddressMapper extends BaseMapper<UserAddress> {
}

编写接口

package com.atguigu.gmall.user.service;public interface UserAddressService {/*** 根据用户Id 查询用户的收货地址列表！* @param userId* @return*/List<UserAddress> findUserAddressListByUserId(String userId);
}

实现类

package com.atguigu.gmall.user.service.impl;@Service
public class UserAddressServiceImpl implements UserAddressService {@Autowiredprivate UserAddressMapper userAddressMapper;@Overridepublic List<UserAddress> findUserAddressListByUserId(String userId) {// 操作哪个数据库表，则就使用哪个表对应的mapper！// new Example() ; 你操作的哪个表，则对应的传入表的实体类！// select * from userAddress where userId = ？;QueryWrapper<UserAddress> queryWrapper = new QueryWrapper<>();queryWrapper.eq("user_id", userId);List<UserAddress> userAddressList = userAddressMapper.selectList(queryWrapper);return userAddressList;}
}

用户地址实体类：UserAddress      

package com.atguigu.gmall.model.user;import com.atguigu.gmall.model.base.BaseEntity;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableName;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;@Data
@ApiModel(description = "用户地址")
@TableName("user_address")
public class UserAddress extends BaseEntity {private static final long serialVersionUID = 1L;@ApiModelProperty(value = "用户地址")@TableField("user_address")private String userAddress;@ApiModelProperty(value = "用户id")@TableField("user_id")private Long userId;@ApiModelProperty(value = "收件人")@TableField("consignee")private String consignee;@ApiModelProperty(value = "联系方式")@TableField("phone_num")private String phoneNum;@ApiModelProperty(value = "是否是默认")@TableField("is_default")private String isDefault;}

 

创建控制器

package com.atguigu.gmall.user.controller;@RestController
@RequestMapping("/api/user")
public class UserApiController {@Autowiredprivate UserAddressService userAddressService;/*** 获取用户地址* @param userId* @return*/@GetMapping("inner/findUserAddressListByUserId/{userId}")public List<UserAddress> findUserAddressListByUserId(@PathVariable("userId") String userId){return userAddressService.findUserAddressListByUserId(userId);}}

 

（4）在service-user-client暴露远程接口

 

接口类

package com.atguigu.gmall.user.client;@FeignClient(value = "service-user", fallback = UserDegradeFeignClient.class)
public interface UserFeignClient {@GetMapping("/api/user/inner/findUserAddressListByUserId/{userId}")List<UserAddress> findUserAddressListByUserId(@PathVariable(value = "userId") String userId);
}

package com.atguigu.gmall.user.client.impl;@Component
public class UserDegradeFeignClient implements UserFeignClient {@Overridepublic List<UserAddress> findUserAddressListByUserId(String userId) {return null;}
}

（5）在service-cart模块获取选中商品数据

添加接口：CartService 接口

/*** 根据用户Id 查询购物车列表** @param userId* @return*/
List<CartInfo> getCartCheckedList(String userId);

实现类

@Override
public List<CartInfo> getCartCheckedList(String userId) {//  获取的选中的购物车列表！String cartKey = this.getCartKey(userId);//  获取到购物车集合数据：List<CartInfo>  cartInfoList = this.redisTemplate.opsForHash().values(cartKey);List<CartInfo> cartInfos = cartInfoList.stream().filter(cartInfo -> {//  再次确认一下最新价格cartInfo.setSkuPrice(productFeignClient.getSkuPrice(cartInfo.getSkuId()));//判断是否选中，返回选中的 true返回 filter过滤出来选中的  return cartInfo.getIsChecked().intValue() == 1;}).collect(Collectors.toList());//  返回数据return cartInfos;
}

 

购物车实体类：CartInfo

package com.atguigu.gmall.model.cart;import com.atguigu.gmall.model.activity.CouponInfo;
import com.atguigu.gmall.model.base.BaseEntity;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableName;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;import java.math.BigDecimal;
import java.sql.Timestamp;
import java.util.List;@Data
@ApiModel(description = "购物车")
@TableName("cart_info")
public class CartInfo extends BaseEntity {private static final long serialVersionUID = 1L;@ApiModelProperty(value = "用户id")private String userId;@ApiModelProperty(value = "skuid")private Long skuId;@ApiModelProperty(value = "放入购物车时价格")private BigDecimal cartPrice;@ApiModelProperty(value = "数量")private Integer skuNum;@ApiModelProperty(value = "图片文件")private String imgUrl;@ApiModelProperty(value = "sku名称 (冗余)")private String skuName;@ApiModelProperty(value = "isChecked")private Integer isChecked = 1;// 实时价格 skuInfo.priceBigDecimal skuPrice;//  优惠券信息列表@ApiModelProperty(value = "购物项对应的优惠券信息")@TableField(exist = false)private List<CouponInfo> couponInfoList;}

 

继续在ApiCartController中编写控制器

/*** 根据用户Id 查询购物车列表** @param userId* @return*/
@GetMapping("getCartCheckedList/{userId}")
public List<CartInfo> getCartCheckedList(@PathVariable(value = "userId") String userId) {return cartService.getCartCheckedList(userId);
}

 

 

（6）创建service-cart-client模块

 

修改配置pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>com.atguigu.gmall</groupId><artifactId>service-client</artifactId><version>1.0</version></parent><artifactId>service-cart-client</artifactId><version>1.0</version><packaging>jar</packaging><name>service-cart-client</name><description>service-cart-client</description></project>

package com.atguigu.gmall.cart.client;@FeignClient(value = "service-cart",fallback = CartDegradeFeignClient.class)
public interface CartFeignClient {//  获取选中购物车列表！@GetMapping("/api/cart/getCartCheckedList/{userId}")public List<CartInfo> getCartCheckedList(@PathVariable String userId);
}

package com.atguigu.gmall.cart.client.impl;
@Component
public class CartDegradeFeignClient implements CartFeignClient {@Overridepublic List<CartInfo> getCartCheckedList(String userId) {return null;}
}

（7）搭建service-order模块

 

搭建方式如service-cart

修改pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>com.atguigu.gmall</groupId><artifactId>service</artifactId><version>1.0</version></parent><version>1.0</version><artifactId>service-order</artifactId><packaging>jar</packaging><name>service-order</name><description>service-order</description><dependencies><dependency><groupId>com.atguigu.gmall</groupId><artifactId>service-product-client</artifactId><version>1.0</version></dependency><dependency><groupId>com.atguigu.gmall</groupId><artifactId>service-cart-client</artifactId><version>1.0</version></dependency><dependency><groupId>com.atguigu.gmall</groupId><artifactId>service-user-client</artifactId><version>1.0</version></dependency></dependencies><build><finalName>service-order</finalName><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

添加配置

bootstrap.properties：

spring.application.name=service-order
spring.profiles.active=dev
spring.cloud.nacos.discovery.server-addr=192.168.200.129:8848
spring.cloud.nacos.config.server-addr=192.168.200.129:8848
spring.cloud.nacos.config.prefix=${spring.application.name}
spring.cloud.nacos.config.file-extension=yaml
spring.cloud.nacos.config.shared-configs[0].data-id=common.yaml

Nacos配置：

 

启动类

package com.atguigu.gmall.order;
@SpringBootApplication
@ComponentScan(basePackages = "com.atguigu.gmall")
@EnableDiscoveryClient
@EnableFeignClients(basePackages = "com.atguigu.gmall")
public class ServiceOrderApplication {public static void main(String[] args) {SpringApplication.run(ServiceOrderApplication.class,args);}
}

 

订单表： 

id	主键。自动生成
consignee	收货人名称。页面获取
consignee_tel	收货人电话。页面获取
deliveryAddress	收货地址。页面获取
total_amount	总金额。计算
order_status	订单状态，用于显示给用户查看。设定初始值。
userId	用户Id。从拦截器已放到请求属性中。
payment_way	支付方式（网上支付、货到付款）。页面获取
orderComment	订单状态。页面获取
out_trade_no	第三方支付编号。按规则生成
create_time	创建时间。设当前时间
expire_time	失效时间，默认当前时间+1天
process_status	订单进度状态，程序控制、 后台管理查看。设定初始值，
tracking_no	物流编号,初始为空，发货后补充
parent_order_id	拆单时产生，默认为空

 

 

 

 

订单详情表：

id	主键，自动生成
order_id	订单编号，主表保存后给从表
sku_id	商品id 页面传递
sku_name	商品名称，后台添加
img_url	图片路径，后台添加
order_price	购买价格（下单时的sku价格） 商品单价，从页面中获取，并验价。
sku_num	商品个数，从页面中获取

 

添加实体

 

package com.atguigu.gmall.model.order;@Data
@ApiModel(description = "订单信息")
@TableName("order_info")
public class OrderInfo extends BaseEntity {private static final long serialVersionUID = 1L;@ApiModelProperty(value = "收货人")@TableField("consignee")private String consignee;@ApiModelProperty(value = "收件人电话")@TableField("consignee_tel")private String consigneeTel;@ApiModelProperty(value = "总金额")@TableField("total_amount")private BigDecimal totalAmount;@ApiModelProperty(value = "订单状态")@TableField("order_status")private String orderStatus;@ApiModelProperty(value = "用户id")@TableField("user_id")private Long userId;@ApiModelProperty(value = "付款方式")@TableField("payment_way")private String paymentWay;@ApiModelProperty(value = "送货地址")@TableField("delivery_address")private String deliveryAddress;@ApiModelProperty(value = "订单备注")@TableField("order_comment")private String orderComment;@ApiModelProperty(value = "订单交易编号（第三方支付用)")@TableField("out_trade_no")private String outTradeNo;@ApiModelProperty(value = "订单描述(第三方支付用)")@TableField("trade_body")private String tradeBody;@ApiModelProperty(value = "创建时间")@TableField("create_time")
@JsonFormat(locale="zh", timezone="GMT+8", pattern="yyyy-MM-dd HH:mm:ss")private Date createTime;@ApiModelProperty(value = "失效时间")@TableField("expire_time")
@JsonFormat(locale="zh", timezone="GMT+8", pattern="yyyy-MM-dd HH:mm:ss")private Date expireTime;@ApiModelProperty(value = "进度状态")@TableField("process_status")private String processStatus;@ApiModelProperty(value = "物流单编号")@TableField("tracking_no")private String trackingNo;@ApiModelProperty(value = "父订单编号")@TableField("parent_order_id")private Long parentOrderId;@ApiModelProperty(value = "图片路径")@TableField("img_url")private String imgUrl;@TableField(exist = false)private List<OrderDetail> orderDetailList;@TableField(exist = false)private String wareId;// 计算总价格public void sumTotalAmount(){BigDecimal totalAmount=new BigDecimal("0");for (OrderDetail orderDetail : orderDetailList) {totalAmount= totalAmount.add(orderDetail.getOrderPrice().multiply(new BigDecimal(orderDetail.getSkuNum())));}this.totalAmount=  totalAmount;}}

package com.atguigu.gmall.model.order;@Data
@ApiModel(description = "订单明细")
@TableName("order_detail")
public class OrderDetail extends BaseEntity {private static final long serialVersionUID = 1L;@ApiModelProperty(value = "订单编号")@TableField("order_id")private Long orderId;@ApiModelProperty(value = "sku_id")@TableField("sku_id")private Long skuId;@ApiModelProperty(value = "sku名称（冗余)")@TableField("sku_name")private String skuName;@ApiModelProperty(value = "图片名称（冗余)")@TableField("img_url")private String imgUrl;@ApiModelProperty(value = "购买价格(下单时sku价格）")@TableField("order_price")private BigDecimal orderPrice;@ApiModelProperty(value = "购买个数")@TableField("sku_num")private Integer skuNum;// 是否有足够的库存！@TableField(exist = false)private String hasStock;}

其中hasStock是一个非持久化属性，用户传递【是否还有库存】的标志。

如果商品在库存中有足够数据，suceess = “1”，fail=“0”

接口封装：

package com.atguigu.gmall.order.controller;
@RestController
@RequestMapping("api/order")
public class OrderApiController {@Autowiredprivate UserFeignClient userFeignClient;@Autowiredprivate CartFeignClient cartFeignClient;/*** 确认订单* @param request* @return*/@GetMapping("auth/trade")public Result<Map<String, Object>> trade(HttpServletRequest request) {// 获取到用户IdString userId = AuthContextHolder.getUserId(request);//获取用户地址List<UserAddress> userAddressList = userFeignClient.findUserAddressListByUserId(userId);// 渲染送货清单// 先得到用户想要购买的商品！List<CartInfo> cartInfoList = cartFeignClient.getCartCheckedList(userId);// 声明一个集合来存储订单明细ArrayList<OrderDetail> detailArrayList = new ArrayList<>();for (CartInfo cartInfo : cartInfoList) {OrderDetail orderDetail = new OrderDetail();orderDetail.setSkuId(cartInfo.getSkuId());orderDetail.setSkuName(cartInfo.getSkuName());orderDetail.setImgUrl(cartInfo.getImgUrl());orderDetail.setSkuNum(cartInfo.getSkuNum());orderDetail.setOrderPrice(cartInfo.getSkuPrice());// 添加到集合detailArrayList.add(orderDetail);}// 计算总金额OrderInfo orderInfo = new OrderInfo();orderInfo.setOrderDetailList(detailArrayList);//调用对象里面的封装好的方法获总金额orderInfo.sumTotalAmount();Map<String, Object> result = new HashMap<>();result.put("userAddressList", userAddressList);result.put("detailArrayList", detailArrayList);// 保存总金额result.put("totalNum", detailArrayList.size());result.put("totalAmount", orderInfo.getTotalAmount());return Result.ok(result);}
}

 

 

 

说明：接口已经封装，接下来暴露接口，提供给web-all模块前端展示数据

 

 

 

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