将 promotion 模块接入 SCA Dubbo 和 Nacos Discovery 组件，同时将 Seata 修改成 SCA Seata 组件

promotion/pom.xml

@@ -17,4 +17,16 @@
         <module>promotion-application</module>
     </modules>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>cn.iocoder.mall</groupId>
+                <artifactId>common-dependencies</artifactId>
+                <version>1.0-SNAPSHOT</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
 </project>

promotion/promotion-service-impl/pom.xml

@@ -54,33 +54,16 @@
             <artifactId>mybatis-plus-boot-starter</artifactId>
         </dependency>
 
-        <dependency>
-            <groupId>io.seata</groupId>
-            <artifactId>seata-spring</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>io.seata</groupId>
-            <artifactId>seata-dubbo</artifactId>
-        </dependency>
-
         <!-- RPC 相关 -->
         <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-spring-boot-starter</artifactId>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-dubbo</artifactId>
         </dependency>
 
         <!-- Registry 和 Config 相关 -->
         <dependency>
-            <groupId>org.apache.curator</groupId>
-            <artifactId>curator-framework</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.curator</groupId>
-            <artifactId>curator-recipes</artifactId>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
         </dependency>
 
         <!-- MQ 相关 -->

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

 package cn.iocoder.mall.promotion.biz.config;
 
-import com.alibaba.druid.pool.DruidDataSource;
-import com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceBuilder;
-import io.seata.rm.datasource.DataSourceProxy;
-import io.seata.spring.annotation.GlobalTransactionScanner;
 import org.mybatis.spring.annotation.MapperScan;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.boot.context.properties.ConfigurationProperties;
-import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.DependsOn;
-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
@@ -23,61 +12,4 @@ 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;
-//    }
-
-    @Bean("druidDataSource")
-    @ConfigurationProperties("spring.datasource.druid")
-    public DruidDataSource druidDataSource(){
-        return DruidDataSourceBuilder.create().build();
-    }
-
-    @ConfigurationProperties(prefix = "spring.datasource")
-    @Primary
-    @Bean("dataSource")
-//    @Bean
-    @DependsOn("druidDataSource") // 解决多数据源，循环依赖的问题。主要发生点在 DataSourceInitializerInvoker
-    public DataSource dataSource() {
-        DruidDataSource druidDataSource = druidDataSource();
-        return new DataSourceProxy(druidDataSource);
-    }
-
-    /**
-     * 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/resources/config/application-test.yaml

-spring:
-  # datasource
-  datasource:
-    url: jdbc:mysql://192.168.88.14:3306/mall_promotion?useSSL=false&useUnicode=true&characterEncoding=UTF-8
-    driver-class-name: com.mysql.jdbc.Driver
-    username: root
-    password: ${MALL_MYSQL_PASSWORD}

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

@@ -6,11 +6,13 @@ spring:
     driver-class-name: com.mysql.jdbc.Driver
     username: root
     password: ${MALL_MYSQL_PASSWORD}
-    # TODO 芋艿, 后续优化下 druid 参数
-    druid:
-      initial-size: 5
-      max-active: 5
-      max-wait: 10000
+
+  # Spring Cloud 配置项
+  cloud:
+    nacos:
+      # Spring Cloud Nacos Discovery 配置项
+      discovery:
+        server-addr: 127.0.0.1:8848 # Nacos 服务器地址
 
 # mybatis-plus
 mybatis-plus:
@@ -22,20 +24,25 @@ mybatis-plus:
   mapper-locations: classpath*:mapper/*.xml
   type-aliases-package: cn.iocoder.mall.promotion.biz.dataobject
 
-# dubbo
+# Dubbo 配置项
 dubbo:
-  application:
-    name: promotion-service
+  # Dubbo 注册中心
   registry:
-    address: zookeeper://127.0.0.1:2181
+    address: spring-cloud://127.0.0.1:8848 # 指定 Dubbo 服务注册中心的地址
+  # Spring Cloud Alibaba Dubbo 专属配置
+  cloud:
+    subscribed-services: admin-application, product-application # 设置订阅的应用列表，默认为 * 订阅所有应用
+  # Dubbo 提供者的协议
   protocol:
-    port: -1
     name: dubbo
+    port: -1
+  # Dubbo 提供服务的扫描基础包
   scan:
     base-packages: cn.iocoder.mall.promotion.biz.service
   consumer:
     ProductSpuService:
       version: 1.0.0
+  # Dubbo 服务提供者的配置
   provider:
     filter: -exception
     BannerService:
@@ -47,6 +54,15 @@ dubbo:
     PromotionActivityService:
       version: 1.0.0
 
+# Seata 配置项
+seata:
+  # Seata 注册中心配置项
+  registry:
+    type: nacos # 注册中心类型
+    nacos:
+      serverAddr: ${spring.cloud.nacos.discovery.server-addr} # Nacos 服务地址
+      namespace: # Nacos 命名空间
+      cluster: default # 使用的 Seata 分组
 
 # logging
 logging:

promotion/promotion-service-impl/src/main/resources/file.conf

-transport {
-  # tcp udt unix-domain-socket
-  type = "TCP"
-  #NIO NATIVE
-  server = "NIO"
-  #enable heartbeat
-  heartbeat = true
-  #thread factory for netty
-  thread-factory {
-    boss-thread-prefix = "NettyBoss"
-    worker-thread-prefix = "NettyServerNIOWorker"
-    server-executor-thread-prefix = "NettyServerBizHandler"
-    share-boss-worker = false
-    client-selector-thread-prefix = "NettyClientSelector"
-    client-selector-thread-size = 1
-    client-worker-thread-prefix = "NettyClientWorkerThread"
-    # netty boss thread size,will not be used for UDT
-    boss-thread-size = 1
-    #auto default pin or 8
-    worker-thread-size = 8
-  }
-}
-
-service {
-  #vgroup->rgroup
-  vgroup_mapping.my_test_tx_group = "default"
-  #only support single node
-  default.grouplist = "180.167.213.26:8091"
-  #degrade current not support
-  enableDegrade = false
-  #disable
-  disable = false
-}
-
-client {
-  async.commit.buffer.limit = 10000
-  lock {
-    retry.internal = 10
-    retry.times = 30
-  }
-}
-## transaction log store
-store {
-  ## store mode: file、db
-  mode = "file"
-
-  ## file store
-  file {
-    dir = "file_store/data"
-
-    # branch session size , if exceeded first try compress lockkey, still exceeded throws exceptions
-    max-branch-session-size = 16384
-    # globe session size , if exceeded throws exceptions
-    max-global-session-size = 512
-    # file buffer size , if exceeded allocate new buffer
-    file-write-buffer-cache-size = 16384
-    # when recover batch read size
-    session.reload.read_size = 100
-  }
-
-  ## database store
-  db {
-    driver_class = ""
-    url = ""
-    user = ""
-    password = ""
-  }
-}
-

promotion/promotion-service-impl/src/main/resources/registry.conf

-registry {
-  type = "file"
-
-  file {
-    name = "file.conf"
-  }
-
-  zk {
-    cluster = "default"
-    serverAddr = "192.168.88.10:2181"
-    session.timeout = 6000
-    connect.timeout = 2000
-  }
-}