springcloud整合nacos1.2.1和seata1.2.0-(client端)（三）

一 說明

版本說明：

• springcloud Hoxton.SR3
• springboot 2.2.6.RELEASE
• spring-cloud-alibaba.version 2.2.1.RELEASE
• 版本對應關係可以參考連接
• 項目demo github

二 springcloud nacos client配置

2.1 maven依賴

<properties>
    <spring-cloud-alibaba.version>2.2.1.RELEASE</spring-cloud-alibaba.version>
</properties>
 
<dependencies>
    <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
    </dependency>
    <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
    </dependency>
</dependencies>
 
<dependencyManagement>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-dependencies</artifactId>
            <version>${spring-cloud-alibaba.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

2.2 配置文件

配置文件可以是bootstrap.yml 或者 bootstrap.properties
bootstrap優先級大於application, 所有讀取Nacos配置的要寫在bootstrap文件中, 否則啓動有可能會報錯
推薦一個yml和properties文件互轉的在線工具

2.2.1 bootstrap.yml

spring:
  nacos-host: 192.168.0.36
  nacos-port: 9090
  main:
    allow-bean-definition-overriding: true
  application:
    name: order-service
  cloud:
    nacos:
      discovery:
        server-addr: ${spring.nacos-host}:${spring.nacos-port}
        userName: "nacos"
        password: "nacos"
      config:
        server-addr: ${spring.nacos-host}:${spring.nacos-port}
        userName: "nacos"
        password: "nacos"
        file-extension: yaml

2.2.2 bootstrap.properties

spring.nacos-host=192.168.0.36
spring.nacos-port=9090
spring.main.allow-bean-definition-overriding=true
spring.application.name=storage-service
spring.cloud.nacos.discovery.server-addr=${spring.nacos-host}:${spring.nacos-port}
spring.cloud.nacos.discovery.userName=nacos
spring.cloud.nacos.discovery.password=nacos
spring.cloud.nacos.config.server-addr=${spring.nacos-host}:${spring.nacos-port}
spring.cloud.nacos.config.userName=nacos
spring.cloud.nacos.config.password=nacos
spring.cloud.nacos.config.file-extension=yaml

三 springcloud seata client配置

3.1 maven依賴

<properties> 
	<spring-cloud-alibaba.version>2.2.1.RELEASE</spring-cloud-alibaba.version> 
</properties>

<dependencies>
    <!--seata begin-->
    <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
        <exclusions>
            <exclusion>
                <groupId>io.seata</groupId>
                <artifactId>seata-all</artifactId>
            </exclusion>
            <exclusion>
                <groupId>io.seata</groupId>
                <artifactId>seata-spring-boot-starter</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>io.seata</groupId>
        <artifactId>seata-spring-boot-starter</artifactId>
        <version>1.2.0</version>
        <exclusions>
            <exclusion>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
   <!--seata end-->
</dependencies>
 
<dependencyManagement>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-dependencies</artifactId>
            <version>${spring-cloud-alibaba.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

3.2 配置文件

配置文件可以爲application.yml或application.properties，在配置文件中加入如下seata配置
推薦一個yml和properties文件互轉的在線工具

3.2.1 application.yml

seata:
  enabled: true
  application-id: ${spring.application.name}
  tx-service-group: my_test_tx_group
  enable-auto-data-source-proxy: true
  config:
    type: nacos
    nacos:
      namespace:
      serverAddr: 192.168.0.36:9090
      group: SEATA_GROUP
      userName: "nacos"
      password: "nacos"
  registry:
    type: nacos
    nacos:
      application: seata-server
      server-addr: 192.168.0.36:9090
      namespace:
      userName: "nacos"
      password: "nacos"

3.2.2 application.properties

seata.enabled=true
seata.application-id=${spring.application.name}
seata.tx-service-group=my_test_tx_group
seata.enable-auto-data-source-proxy=true
seata.config.type=nacos
seata.config.nacos.namespace=
seata.config.nacos.serverAddr=192.168.0.36:9090
seata.config.nacos.group=SEATA_GROUP
seata.config.nacos.userName=nacos
seata.config.nacos.password=nacos
seata.registry.type=nacos
seata.registry.nacos.application=seata-server
seata.registry.nacos.server-addr=192.168.0.36:9090
seata.registry.nacos.namespace=
seata.registry.nacos.userName=nacos
seata.registry.nacos.password=nacos

3.3.3 注意事項

• seata.tx-service-group的值my_test_tx_group必須跟nacos中的配置一樣，可以在nacos配置中心手動添加
• seata 如果用的是1.2.0則要求springcloud的版本爲Hoxton.SR3，低springcloud版本啓動可能會報錯

四 springcloud nacos seata client 整體demo

• 項目demo github
• 下載後記得先執行db腳本（mysql）,創建業務庫及相關表（三個庫6張表）
  

五 驗證

demo服務調用總覽

5.1 啓動服務

• idea

• nacos

5.2 全局提交驗證

主要通過日誌驗證，數據庫數據驗證個人去查即可

• 發送請求

• 查看日誌（二階段已提交）

5.2 全局回滾驗證

• 發送請求

• 查看TM日誌

• 查看RM日誌