- 后端：引入分布式事务框架 seata 框架。

- 后端：目前订单提交时，如果发生异常，会回滚优惠劵的使用。

mobile-web/src/page/shipping/order.vue

@@ -173,6 +173,7 @@
             createOrder({
               orderItems,
               userAddressId,
+              couponCardId,
               remark,
             }).then(result => {
               if (result) {

order/order-application/pom.xml

@@ -74,11 +74,13 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-actuator</artifactId>
         </dependency>
-        <dependency>
+
-            <groupId>org.springframework.boot</groupId>
+<!--        <dependency>-->
-            <artifactId>spring-boot-devtools</artifactId>
+<!--            <groupId>org.springframework.boot</groupId>-->
-            <optional>true</optional>
+<!--            <artifactId>spring-boot-devtools</artifactId>-->
-        </dependency>
+<!--            <optional>true</optional>-->
+<!--        </dependency>-->
+
         <dependency>
             <groupId>de.codecentric</groupId>
             <artifactId>spring-boot-admin-starter-client</artifactId>

order/order-application/src/main/java/cn/iocoder/mall/order/application/controller/users/OrderController.java

@@ -17,6 +17,8 @@ import cn.iocoder.mall.order.application.convert.CartConvert;
 import cn.iocoder.mall.order.application.convert.OrderConvertAPP;
 import cn.iocoder.mall.order.application.po.user.OrderCreatePO;
 import cn.iocoder.mall.order.application.vo.UsersOrderConfirmCreateVO;
+import cn.iocoder.mall.promotion.api.CouponService;
+import cn.iocoder.mall.promotion.api.bo.CouponCardAvailableBO;
 import cn.iocoder.mall.user.sdk.context.UserSecurityContextHolder;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
@@ -29,6 +31,8 @@ import java.util.Collections;
 import java.util.List;
 import java.util.stream.Collectors;
 
+import static cn.iocoder.common.framework.vo.CommonResult.success;
+
 /**
  * 订单API(users)
  *
@@ -46,6 +50,8 @@ public class OrderController {
     private CartService cartService;
     @Reference(validation = "true", version = "${dubbo.consumer.DataDictService.version}")
     private DataDictService dataDictService;
+    @Reference(validation = "true", version = "${dubbo.consumer.CouponService.version}")
+    private CouponService couponService;
 
     @GetMapping("order_page")
     @ApiOperation("订单分页")
@@ -97,14 +103,18 @@ public class OrderController {
     public CommonResult<UsersOrderConfirmCreateVO> getConfirmCreateOrder(@RequestParam("skuId") Integer skuId,
                                                                          @RequestParam("quantity") Integer quantity,
                                                                          @RequestParam(value = "couponCardId", required = false) Integer couponCardId) {
+        Integer userId = UserSecurityContextHolder.getContext().getUserId();
         // 创建 CalcOrderPriceDTO 对象，并执行价格计算
         CalcOrderPriceDTO calcOrderPriceDTO = new CalcOrderPriceDTO()
-                .setUserId(UserSecurityContextHolder.getContext().getUserId())
+                .setUserId(userId)
                 .setItems(Collections.singletonList(new CalcOrderPriceDTO.Item(skuId, quantity, true)))
                 .setCouponCardId(couponCardId);
         CalcOrderPriceBO calcOrderPrice = cartService.calcOrderPrice(calcOrderPriceDTO);
+        // 获得优惠劵
+        List<CouponCardAvailableBO> couponCards = couponService.getCouponCardList(userId,
+                CartConvert.INSTANCE.convertList(calcOrderPrice.getItemGroups()));
         // 执行数据拼装
-        return CommonResult.success(CartConvert.INSTANCE.convert(calcOrderPrice));
+        return success(CartConvert.INSTANCE.convert(calcOrderPrice).setCouponCards(couponCards));
     }
 
     @PostMapping("confirm_receiving")

order/order-service-impl/pom.xml

@@ -30,7 +30,6 @@
             <groupId>cn.iocoder.mall</groupId>
             <artifactId>pay-service-api</artifactId>
             <version>1.0-SNAPSHOT</version>
-            <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>cn.iocoder.mall</groupId>
@@ -41,13 +40,11 @@
             <groupId>cn.iocoder.mall</groupId>
             <artifactId>system-service-api</artifactId>
             <version>1.0-SNAPSHOT</version>
-            <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>cn.iocoder.mall</groupId>
             <artifactId>user-service-api</artifactId>
             <version>1.0-SNAPSHOT</version>
-            <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>cn.iocoder.mall</groupId>
@@ -72,10 +69,17 @@
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
         </dependency>
-        <dependency>
+
-            <groupId>org.springframework.boot</groupId>
+<!--        <dependency>-->
-            <artifactId>spring-boot-starter-jdbc</artifactId>
+<!--            <groupId>org.springframework.boot</groupId>-->
-        </dependency>
+<!--            <artifactId>spring-boot-starter-jdbc</artifactId>-->
+<!--&lt;!&ndash;            <exclusions>&ndash;&gt;-->
+<!--&lt;!&ndash;                <exclusion>&ndash;&gt;-->
+<!--&lt;!&ndash;                    <artifactId>HikariCP</artifactId>&ndash;&gt;-->
+<!--&lt;!&ndash;                    <groupId>com.zaxxer</groupId>&ndash;&gt;-->
+<!--&lt;!&ndash;                </exclusion>&ndash;&gt;-->
+<!--&lt;!&ndash;            </exclusions>&ndash;&gt;-->
+<!--        </dependency>-->
 
         <!--  spring cloud and dubbo  -->
         <dependency>
@@ -94,21 +98,25 @@
             <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo-spring-boot-starter</artifactId>
         </dependency>
+
         <dependency>
             <groupId>com.baomidou</groupId>
             <artifactId>mybatis-plus-boot-starter</artifactId>
-            <version>${mybatis-plus.version}</version>
         </dependency>
 
-        <dependency>
-            <groupId>org.mybatis.spring.boot</groupId>
-            <artifactId>mybatis-spring-boot-starter</artifactId>
-            <version>2.0.0</version>
-        </dependency>
         <dependency>
             <groupId>org.apache.rocketmq</groupId>
             <artifactId>rocketmq-spring-boot-starter</artifactId>
-            <version>2.0.1</version>
+        </dependency>
+
+        <dependency>
+            <groupId>io.seata</groupId>
+            <artifactId>seata-spring</artifactId>
+        </dependency>
+        <!--dependency for Apache Dubbo-->
+        <dependency>
+            <groupId>io.seata</groupId>
+            <artifactId>seata-dubbo</artifactId>
         </dependency>
 
         <!--  test  -->

order/order-service-impl/src/main/java/cn/iocoder/mall/order/biz/config/DatabaseConfiguration.java

@@ -1,9 +1,20 @@
 package cn.iocoder.mall.order.biz.config;
 
+import com.alibaba.druid.pool.DruidDataSource;
+import io.seata.rm.datasource.DataSourceProxy;
+import io.seata.spring.annotation.GlobalTransactionScanner;
 import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
 import org.springframework.transaction.annotation.EnableTransactionManagement;
 
+import javax.sql.DataSource;
+
 @Configuration
 @MapperScan("cn.iocoder.mall.order.biz.dao") // 扫描对应的 Mapper 接口
 @EnableTransactionManagement(proxyTargetClass = true) // 启动事务管理。为什么使用 proxyTargetClass 参数，参见 https://blog.csdn.net/huang_550/article/details/76492600
@@ -11,4 +22,54 @@ public class DatabaseConfiguration {
 
     // 数据源，使用 HikariCP
 
+    @Value("${spring.application.name}")
+    private String applicationId;
+
+    @Autowired
+    private DataSourceProperties dataSourceProperties;
+
+    @Bean
+//    @Primary
+    public DruidDataSource druidDataSource(){
+        DruidDataSource druidDataSource = new DruidDataSource();
+        druidDataSource.setUrl(dataSourceProperties.getUrl());
+        druidDataSource.setUsername(dataSourceProperties.getUsername());
+        druidDataSource.setPassword(dataSourceProperties.getPassword());
+        druidDataSource.setDriverClassName(dataSourceProperties.getDriverClassName());
+        druidDataSource.setInitialSize(0);
+        druidDataSource.setMaxActive(180);
+        druidDataSource.setMaxWait(60000);
+        druidDataSource.setMinIdle(0);
+        druidDataSource.setValidationQuery("Select 1 from DUAL");
+        druidDataSource.setTestOnBorrow(false);
+        druidDataSource.setTestOnReturn(false);
+        druidDataSource.setTestWhileIdle(true);
+        druidDataSource.setTimeBetweenEvictionRunsMillis(60000);
+        druidDataSource.setMinEvictableIdleTimeMillis(25200000);
+        druidDataSource.setRemoveAbandoned(true);
+        druidDataSource.setRemoveAbandonedTimeout(1800);
+        druidDataSource.setLogAbandoned(true);
+        return druidDataSource;
+    }
+
+    @ConfigurationProperties(prefix = "spring.datasource")
+    @Primary
+    @Bean("dataSource")
+//    @Bean
+    public DataSource dataSource(DruidDataSource dataSource) {
+        return new DataSourceProxy(dataSource);
+    }
+
+    /**
+     * 注册一个StatViewServlet
+     *
+     * @return global transaction scanner
+     */
+    @Bean
+    public GlobalTransactionScanner globalTransactionScanner() {
+        return new GlobalTransactionScanner(applicationId, "my_test_tx_group");
+        // TODO 芋艿，txServiceGroup 后续要编辑下
+    }
+
+
 }

order/order-service-impl/src/main/java/cn/iocoder/mall/order/biz/config/SeataConfiguration.java

@@ -0,0 +1,9 @@
+package cn.iocoder.mall.order.biz.config;
+
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class SeataConfiguration {
+
+
+}

order/order-service-impl/src/main/java/cn/iocoder/mall/order/biz/dao/OrderMapper.java

@@ -2,6 +2,7 @@ package cn.iocoder.mall.order.biz.dao;
 
 import cn.iocoder.mall.order.api.dto.OrderQueryDTO;
 import cn.iocoder.mall.order.biz.dataobject.OrderDO;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import org.apache.ibatis.annotations.Param;
 import org.springframework.stereotype.Repository;
 
@@ -14,14 +15,7 @@ import java.util.List;
  * @time 2019-03-16 15:09
  */
 @Repository
-public interface OrderMapper {
+public interface OrderMapper extends BaseMapper<OrderDO> {
-
-    /**
-     * 插入数据
-     *
-     * @param orderDO
-     */
-    void insert(OrderDO orderDO);
 
     /**
      * 更新 - 根据 id 更新

order/order-service-impl/src/main/java/cn/iocoder/mall/order/biz/dataobject/OrderDO.java

@@ -1,6 +1,7 @@
 package cn.iocoder.mall.order.biz.dataobject;
 
 import cn.iocoder.common.framework.dataobject.DeletableDO;
+import com.baomidou.mybatisplus.annotation.TableName;
 import lombok.Data;
 import lombok.experimental.Accessors;
 
@@ -14,6 +15,7 @@ import java.util.Date;
  */
 @Data
 @Accessors(chain = true)
+@TableName(value = "orders")
 public class OrderDO extends DeletableDO {
 
     /**

order/order-service-impl/src/main/java/cn/iocoder/mall/order/biz/service/OrderServiceImpl.java

@@ -21,6 +21,7 @@ import cn.iocoder.mall.product.api.bo.ProductSkuDetailBO;
 import cn.iocoder.mall.promotion.api.CouponService;
 import cn.iocoder.mall.user.api.UserAddressService;
 import cn.iocoder.mall.user.api.bo.UserAddressBO;
+import io.seata.spring.annotation.GlobalTransactional;
 import org.apache.dubbo.config.annotation.Reference;
 import com.google.common.collect.Lists;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -210,6 +211,7 @@ public class OrderServiceImpl implements OrderService {
     }
 
     @Override
+    @GlobalTransactional
     @Transactional // TODO 芋艿，先不考虑分布式事务的问题
     public CommonResult<OrderCreateBO> createOrder(OrderCreateDTO orderCreateDTO) {
         Integer userId = orderCreateDTO.getUserId();
@@ -284,8 +286,8 @@ public class OrderServiceImpl implements OrderService {
                 .setHasReturnExchange(OrderHasReturnExchangeEnum.NO.getValue())
                 .setRemark(Optional.ofNullable(orderCreateDTO.getRemark()).orElse(""));
         orderDO.setDeleted(DeletedStatusEnum.DELETED_NO.getValue());
-        orderDO.setCreateTime(new Date());
+//        orderDO.setCreateTime(new Date());
-        orderDO.setUpdateTime(null);
+//        orderDO.setUpdateTime(null);
         orderMapper.insert(orderDO);
 
         // 收件人信息
@@ -321,6 +323,10 @@ public class OrderServiceImpl implements OrderService {
         // 一次性插入
         orderItemMapper.insert(orderItemDOList);
 
+        if (true) {
+            throw new RuntimeException("测试 seata 事务回滚");
+        }
+
         // 创建预订单
         createPayTransaction(orderDO, orderItemDOList, orderCreateDTO.getIp());
 

order/order-service-impl/src/main/resources/config/application.yaml

@@ -38,6 +38,7 @@ dubbo:
     CartService:
       version: 1.0.0
   consumer:
+    timeout: 120000 # 设置长一点，方便调试代码
     ProductSpuService:
       version: 1.0.0
     PromotionActivityService:

order/order-service-impl/src/main/resources/mapper/OrderMapper.xml

@@ -9,26 +9,6 @@
         status, remark, create_time, update_time, `deleted`
     </sql>
 
-    <!--
-        插入数据
-    -->
-    <insert id="insert" parameterType="OrderDO" useGeneratedKeys="true" keyColumn="id" keyProperty="id">
-        INSERT INTO `order` (
-            user_id, order_no, buy_price, discount_price, logistics_price, present_price, pay_amount,
-            payment_time, delivery_time, receiver_time, closing_time,
-            has_return_exchange,
-            status, remark, create_time, update_time, `deleted`
-        ) VALUES (
-             #{userId}, #{orderNo}, #{buyPrice}, #{discountPrice}, #{logisticsPrice}, #{presentPrice}, #{payAmount},
-             #{paymentTime}, #{deliveryTime}, #{receiverTime}, #{closingTime},
-             #{hasReturnExchange},
-             #{status}, #{remark}, #{createTime}, #{updateTime}, #{deleted}
-        )
-    </insert>
-
-    <!--
-        更新 - 可更新的字段
-    -->
     <sql id="updateFieldSql" >
         <set>
             <if test="orderNo != null">
@@ -86,9 +66,6 @@
         </set>
     </sql>
 
-    <!--
-        更新 - 根据 id 更新
-    -->
     <update id="updateById" parameterType="OrderDO">
         UPDATE `order`
         <include refid="updateFieldSql" />
@@ -112,9 +89,6 @@
         AND status = #{status}
     </update>
 
-    <!--
-        查询 - 根据id 查询
-    -->
     <select id="selectById" resultType="cn.iocoder.mall.order.biz.dataobject.OrderDO">
         SELECT
         <include refid="FIELDS" />
@@ -122,9 +96,6 @@
         WHERE id = #{id}
     </select>
 
-    <!--
-        查询条件 注意：条件顺序，避免不能使用索引
-    -->
     <sql id="selectWhere">
         <if test="status != null">
             AND `status` = #{status}
@@ -147,26 +118,22 @@
         </if>
     </sql>
 
-    <!--
-        查询 - 后台分页page Count
-    -->
     <select id="selectPageCount" resultType="java.lang.Integer">
         SELECT
         COUNT(*)
         FROM `order`
-        WHERE 1 = 1 <!-- TODO 芋艿 不要 1=1 ，会有问题，使用 where 标签 -->
+        <where>
             <include refid="selectWhere" />
+        </where>
     </select>
 
-    <!--
-        查询 - 后台分页page
-    -->
     <select id="selectPage" resultType="cn.iocoder.mall.order.biz.dataobject.OrderDO">
         SELECT
         <include refid="FIELDS" />
         FROM `order`
-        WHERE 1 = 1 <!-- TODO 芋艿 不要 1=1 ，会有问题，使用 where 标签 -->
+        <where>
             <include refid="selectWhere" />
+        </where>
         LIMIT ${pageNo * pageSize}, ${pageSize}
     </select>
 

order/order-service-impl/src/main/resources/mapper/OrderRecipientMapper.xml

@@ -16,7 +16,7 @@
             `type`, create_time, update_time
         ) VALUES (
             #{orderId}, #{areaNo}, #{name}, #{mobile}, #{address},
-            #{type}, #{createTime}, #{updateTime}
+            #{type}, #{createTime,jdbcType=TIMESTAMP} , #{updateTime}
         )
     </insert>
 

pom.xml

@@ -30,7 +30,7 @@
         <springboot.version>2.1.3.RELEASE</springboot.version>
 <!--        <com.alibab.dubbo.version>2.6.5</com.alibab.dubbo.version>-->
         <dubbo.version>2.7.1</dubbo.version>
-        <mysql-connector-java.version>5.1.47</mysql-connector-java.version>
+        <mysql-connector-java.version>5.1.46</mysql-connector-java.version>
 <!--        <dubbo-spring-boot-starter.version>0.2.1.RELEASE</dubbo-spring-boot-starter.version>-->
         <org.mapstruct.version>1.3.0.Final</org.mapstruct.version>
         <curator.version>2.13.0</curator.version>

promotion/promotion-application/pom.xml

@@ -22,7 +22,6 @@
             <artifactId>mall-spring-boot</artifactId>
             <version>1.0-SNAPSHOT</version>
         </dependency>
-
         <dependency>
             <groupId>cn.iocoder.mall</groupId>
             <artifactId>product-service-api</artifactId>

promotion/promotion-application/src/main/java/cn/iocoder/mall/promotion/application/config/SwaggerConfiguration.java

@@ -1,36 +0,0 @@
-package cn.iocoder.mall.promotion.application.config;
-
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import springfox.documentation.builders.ApiInfoBuilder;
-import springfox.documentation.builders.PathSelectors;
-import springfox.documentation.builders.RequestHandlerSelectors;
-import springfox.documentation.service.ApiInfo;
-import springfox.documentation.spi.DocumentationType;
-import springfox.documentation.spring.web.plugins.Docket;
-import springfox.documentation.swagger2.annotations.EnableSwagger2;
-
-@Configuration
-@EnableSwagger2 // TODO 生产环境时，禁用掉。
-public class SwaggerConfiguration {
-
-    @Bean
-    public Docket createRestApi() {
-        return new Docket(DocumentationType.SWAGGER_2)
-                .apiInfo(apiInfo())
-                .select()
-                .apis(RequestHandlerSelectors.basePackage("cn.iocoder.mall.promotion.application.controller"))
-                .paths(PathSelectors.any())
-                .build();
-    }
-
-    private ApiInfo apiInfo() {
-        return new ApiInfoBuilder()
-                .title("营销子系统")
-                .description("营销子系统")
-                .termsOfServiceUrl("http://www.iocoder.cn")
-                .version("1.0.0")
-                .build();
-    }
-
-}

promotion/promotion-service-impl/pom.xml

@@ -28,6 +28,35 @@
             <version>1.0-SNAPSHOT</version>
         </dependency>
 
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.xuxueli</groupId>
+            <artifactId>xxl-job-core</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+        </dependency>
+<!--        <dependency>-->
+<!--            <groupId>org.springframework.boot</groupId>-->
+<!--            <artifactId>spring-boot-starter-jdbc</artifactId>-->
+<!--            <exclusions>-->
+<!--                <exclusion>-->
+<!--                    <artifactId>logback-classic</artifactId>-->
+<!--                    <groupId>ch.qos.logback</groupId>-->
+<!--                </exclusion>-->
+<!--                <exclusion>-->
+<!--                    <artifactId>spring-boot-starter-logging</artifactId>-->
+<!--                    <groupId>org.springframework.boot</groupId>-->
+<!--                </exclusion>-->
+<!--            </exclusions>-->
+<!--        </dependency>-->
+
+
         <dependency>
             <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo</artifactId>
@@ -46,42 +75,29 @@
         </dependency>
 
         <dependency>
-            <groupId>mysql</groupId>
+            <groupId>com.baomidou</groupId>
-            <artifactId>mysql-connector-java</artifactId>
+            <artifactId>mybatis-plus-boot-starter</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-jdbc</artifactId>
             <exclusions>
                 <exclusion>
-                    <artifactId>logback-classic</artifactId>
-                    <groupId>ch.qos.logback</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>spring-boot-starter-logging</artifactId>
                     <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-starter-jdbc</artifactId>
                 </exclusion>
             </exclusions>
         </dependency>
 
         <dependency>
-            <groupId>org.mybatis.spring.boot</groupId>
+            <groupId>org.apache.rocketmq</groupId>
-            <artifactId>mybatis-spring-boot-starter</artifactId>
+            <artifactId>rocketmq-spring-boot-starter</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>com.google.guava</groupId>
-            <artifactId>guava</artifactId>
         </dependency>
 
         <dependency>
-            <groupId>com.xuxueli</groupId>
+            <groupId>io.seata</groupId>
-            <artifactId>xxl-job-core</artifactId>
+            <artifactId>seata-spring</artifactId>
         </dependency>
-
+        <!--dependency for Apache Dubbo-->
         <dependency>
-            <groupId>org.apache.rocketmq</groupId>
+            <groupId>io.seata</groupId>
-            <artifactId>rocketmq-spring-boot-starter</artifactId>
+            <artifactId>seata-dubbo</artifactId>
         </dependency>
 
         <!--  test  -->
@@ -90,6 +106,22 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-tx</artifactId>
+            <version>5.1.3.RELEASE</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-jdbc</artifactId>
+            <version>5.1.3.RELEASE</version>
+        </dependency>
+        <!--        <dependency>-->
+<!--            <groupId>org.springframework</groupId>-->
+<!--            <artifactId>spring-tx</artifactId>-->
+<!--            <version>5.0.12.RELEASE</version>-->
+<!--            <scope>compile</scope>-->
+<!--        </dependency>-->
 
     </dependencies>
 

promotion/promotion-service-impl/src/main/java/cn/iocoder/mall/promotion/biz/config/DatabaseConfiguration.java

@@ -1,14 +1,78 @@
 package cn.iocoder.mall.promotion.biz.config;
 
+import com.alibaba.druid.pool.DruidDataSource;
+import io.seata.rm.datasource.DataSourceProxy;
+import io.seata.spring.annotation.GlobalTransactionScanner;
 import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
 import org.springframework.transaction.annotation.EnableTransactionManagement;
 
+import javax.sql.DataSource;
+
 @Configuration
 @MapperScan("cn.iocoder.mall.promotion.biz.dao") // 扫描对应的 Mapper 接口
 @EnableTransactionManagement(proxyTargetClass = true) // 启动事务管理。为什么使用 proxyTargetClass 参数，参见 https://blog.csdn.net/huang_550/article/details/76492600
+@EnableConfigurationProperties(DataSourceProperties.class)
 public class DatabaseConfiguration {
 
     // 数据源，使用 HikariCP
 
+    @Value("${spring.application.name}")
+    private String applicationId;
+
+    @Autowired
+    private DataSourceProperties dataSourceProperties;
+
+//    @Bean // TODO 芋艿，加了就一直报错，后面在找原因。
+//    @Primary
+    public DruidDataSource druidDataSource(){
+        DruidDataSource druidDataSource = new DruidDataSource();
+        druidDataSource.setUrl(dataSourceProperties.getUrl());
+        druidDataSource.setUsername(dataSourceProperties.getUsername());
+        druidDataSource.setPassword(dataSourceProperties.getPassword());
+        druidDataSource.setDriverClassName(dataSourceProperties.getDriverClassName());
+        druidDataSource.setInitialSize(0);
+        druidDataSource.setMaxActive(180);
+        druidDataSource.setMaxWait(60000);
+        druidDataSource.setMinIdle(0);
+        druidDataSource.setValidationQuery("Select 1 from DUAL");
+        druidDataSource.setTestOnBorrow(false);
+        druidDataSource.setTestOnReturn(false);
+        druidDataSource.setTestWhileIdle(true);
+        druidDataSource.setTimeBetweenEvictionRunsMillis(60000);
+        druidDataSource.setMinEvictableIdleTimeMillis(25200000);
+        druidDataSource.setRemoveAbandoned(true);
+        druidDataSource.setRemoveAbandonedTimeout(1800);
+        druidDataSource.setLogAbandoned(true);
+        return druidDataSource;
+    }
+
+    @ConfigurationProperties(prefix = "spring.datasource")
+    @Primary
+    @Bean("dataSource")
+//    @Bean
+    public DataSource dataSource() {
+        DruidDataSource dataSource = druidDataSource();
+
+        return new DataSourceProxy(dataSource);
+    }
+
+    /**
+     * 注册一个StatViewServlet
+     *
+     * @return global transaction scanner
+     */
+    @Bean
+    public GlobalTransactionScanner globalTransactionScanner() {
+        return new GlobalTransactionScanner(applicationId, "my_test_tx_group");
+        // TODO 芋艿，txServiceGroup 后续要编辑下
+    }
+
 }

promotion/promotion-service-impl/src/main/java/cn/iocoder/mall/promotion/biz/service/CouponServiceImpl.java

@@ -242,14 +242,14 @@ public class CouponServiceImpl implements CouponService {
         if (!userId.equals(card.getUserId())) {
             throw ServiceExceptionUtil.exception(PromotionErrorCodeEnum.COUPON_CARD_ERROR_USER.getCode());
         }
-        if (CouponCardStatusEnum.UNUSED.getValue().equals(card.getStatus())) {
+        if (!CouponCardStatusEnum.UNUSED.getValue().equals(card.getStatus())) {
             throw ServiceExceptionUtil.exception(PromotionErrorCodeEnum.COUPON_CARD_STATUS_NOT_UNUSED.getCode());
         }
         if (DateUtil.isBetween(card.getValidStartTime(), card.getValidEndTime())) { // 为避免定时器没跑，实际优惠劵已经过期
             throw ServiceExceptionUtil.exception(PromotionErrorCodeEnum.COUPON_CARD_STATUS_NOT_UNUSED.getCode());
         }
         // 更新优惠劵已使用
-        int updateCount = couponCardMapper.updateByIdAndStatus(card.getId(), CouponCardStatusEnum.USED.getValue(),
+        int updateCount = couponCardMapper.updateByIdAndStatus(card.getId(), CouponCardStatusEnum.UNUSED.getValue(),
                 new CouponCardDO().setStatus(CouponCardStatusEnum.USED.getValue()).setUsedTime(new Date()));
         if (updateCount == 0) {
             throw ServiceExceptionUtil.exception(PromotionErrorCodeEnum.COUPON_CARD_STATUS_NOT_UNUSED.getCode());
@@ -267,12 +267,12 @@ public class CouponServiceImpl implements CouponService {
         if (!userId.equals(card.getUserId())) {
             throw ServiceExceptionUtil.exception(PromotionErrorCodeEnum.COUPON_CARD_ERROR_USER.getCode());
         }
-        if (CouponCardStatusEnum.USED.getValue().equals(card.getStatus())) {
+        if (!CouponCardStatusEnum.USED.getValue().equals(card.getStatus())) {
             throw ServiceExceptionUtil.exception(PromotionErrorCodeEnum.COUPON_CARD_STATUS_NOT_USED.getCode());
         }
         // 更新优惠劵已使用
-        int updateCount = couponCardMapper.updateByIdAndStatus(card.getId(), CouponCardStatusEnum.UNUSED.getValue(),
+        int updateCount = couponCardMapper.updateByIdAndStatus(card.getId(), CouponCardStatusEnum.USED.getValue(),
-                new CouponCardDO().setStatus(CouponCardStatusEnum.USED.getValue())); // TODO 芋艿，usedTime 未设置空，后面处理。
+                new CouponCardDO().setStatus(CouponCardStatusEnum.UNUSED.getValue())); // TODO 芋艿，usedTime 未设置空，后面处理。
         if (updateCount == 0) {
             throw ServiceExceptionUtil.exception(PromotionErrorCodeEnum.COUPON_CARD_STATUS_NOT_USED.getCode());
         }

promotion/promotion-service-impl/src/main/resources/config/application.yaml

@@ -7,9 +7,18 @@ spring:
     password: ${MALL_MYSQL_PASSWORD}
 
 # mybatis
-mybatis:
+#mybatis:
-  config-location: classpath:mybatis-config.xml
+#  config-location: classpath:mybatis-config.xml
-  mapper-locations: classpath:mapper/*.xml
+#  mapper-locations: classpath:mapper/*.xml
+#  type-aliases-package: cn.iocoder.mall.promotion.biz.dataobject
+# mybatis-plus
+mybatis-plus:
+  configuration:
+    map-underscore-to-camel-case: true # 虽然默认为 true ，但是还是显示去指定下。
+  global-config:
+    db-config:
+      id-type: auto
+  mapper-locations: classpath*:mapper/*.xml
   type-aliases-package: cn.iocoder.mall.promotion.biz.dataobject
 
 # dubbo