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本文来自 Apache Seata官方文档，欢迎访问官网，查看更多深度文章。
Seata分布式事务启用Nacos做配置中心
Seata分布式事务启用Nacos做配置中心
项目地址
本文作者：FUNKYE(陈健斌),杭州某互联网公司主程。
前言
上次发布了直连方式的seata配置,详细可以看这篇博客
我们接着上一篇的基础上去配置nacos做配置中心跟dubbo注册中心.
准备工作
1.首先去nacos的github上下载最新版本
2.下载好了后,很简单,解压后到bin目录下去启动就好了,看到如图所示就成了：
3.启动完毕后访问:http://127.0.0.1:8848/nacos/#/login
是不是看到这样的界面了?输入nacos(账号密码相同),先进去看看吧.
这时候可以发现没有任何服务注册
别急我们马上让seata服务连接进来.
Seata配置
1.进入seata的conf文件夹看到这个木有?
就是它,编辑它:
2.然后记得保存哦!接着我们把registry.conf文件打开编辑：
registry {# file 、nacos 、eureka、redis、zk、consul、etcd3、sofatype = "nacos"nacos {serverAddr = "localhost"namespace = ""cluster = "default"}eureka {serviceUrl = "http://localhost:8761/eureka"application = "default"weight = "1"}redis {serverAddr = "localhost:6379"db = "0"}zk {cluster = "default"serverAddr = "127.0.0.1:2181"session.timeout = 6000connect.timeout = 2000}consul {cluster = "default"serverAddr = "127.0.0.1:8500"}etcd3 {cluster = "default"serverAddr = "http://localhost:2379"}sofa {serverAddr = "127.0.0.1:9603"application = "default"region = "DEFAULT_ZONE"datacenter = "DefaultDataCenter"cluster = "default"group = "SEATA_GROUP"addressWaitTime = "3000"}file {name = "file.conf"}
}config {# file、nacos 、apollo、zk、consul、etcd3type = "nacos"nacos {serverAddr = "localhost"namespace = ""}consul {serverAddr = "127.0.0.1:8500"}apollo {app.id = "seata-server"apollo.meta = "http://192.168.1.204:8801"}zk {serverAddr = "127.0.0.1:2181"session.timeout = 6000connect.timeout = 2000}etcd3 {serverAddr = "http://localhost:2379"}file {name = "file.conf"}
}都编辑好了后，我们运行nacos-config.sh,这时候我们配置的nacos-config.txt的内容已经被发送到nacos中了详细如图：
出现以上类似的代码就是说明成功了，接着我们登录nacos配置中心，查看配置列表，出现如图列表说明配置成功了：
看到了吧,你的配置已经全部都提交上去了,如果再git工具内运行sh不行的话,试着把编辑sh文件,试试改成如下操作
for line in $(cat nacos-config.txt)dokey=${line%%=*}
value=${line#*=}
echo "\r\n set "${key}" = "${value}result=`curl -X POST "http://127.0.0.1:8848/nacos/v1/cs/configs?dataId=$key&group=SEATA_GROUP&content=$value"`if [ "$result"x == "true"x ]; thenecho "\033[42;37m $result \033[0m"elseecho "\033[41;37 $result \033[0m"let error++fidoneif [ $error -eq 0 ]; thenecho "\r\n\033[42;37m init nacos config finished, please start seata-server. \033[0m"elseecho "\r\n\033[41;33m init nacos config fail. \033[0m"fi
3.目前我们的准备工作全部完成,我们去seata-service/bin去运行seata服务吧,如图所示就成功啦!
进行调试
1.首先把springboot-dubbo-mybatsiplus-seata项目的pom的依赖更改,去除掉zk这些配置,因为我们使用nacos做注册中心了.
<properties><webVersion>3.1</webVersion><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><maven.compiler.source>1.8</maven.compiler.source><maven.compiler.target>1.8</maven.compiler.target><HikariCP.version>3.2.0</HikariCP.version><mybatis-plus-boot-starter.version>3.2.0</mybatis-plus-boot-starter.version></properties><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.1.8.RELEASE</version></parent><dependencies><dependency><groupId>com.alibaba.nacos</groupId><artifactId>nacos-client</artifactId><version>1.1.4</version></dependency><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-registry-nacos</artifactId><version>2.7.4.1</version></dependency><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-spring-boot-starter</artifactId><version>2.7.4.1</version></dependency><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.60</version></dependency><!-- <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>7.0</version> <scope>provided</scope> </dependency> --><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId><version>2.9.2</version></dependency><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger-ui</artifactId><version>2.9.2</version></dependency><!-- mybatis-plus begin --><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>${mybatis-plus-boot-starter.version}</version></dependency><!-- mybatis-plus end --><!-- https://mvnrepository.com/artifact/org.projectlombok/lombok --><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><scope>provided</scope></dependency><dependency><groupId>io.seata</groupId><artifactId>seata-all</artifactId><version>0.9.0.1</version></dependency><!-- <dependency> <groupId>com.baomidou</groupId> <artifactId>dynamic-datasource-spring-boot-starter</artifactId> <version>2.5.4</version> </dependency> --><!-- <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-generator</artifactId> <version>3.1.0</version> </dependency> --><!-- https://mvnrepository.com/artifact/org.freemarker/freemarker --><dependency><groupId>org.freemarker</groupId><artifactId>freemarker</artifactId></dependency><!-- https://mvnrepository.com/artifact/com.alibaba/druid-spring-boot-starter --><dependency><groupId>com.alibaba</groupId><artifactId>druid-spring-boot-starter</artifactId><version>1.1.20</version></dependency><!-- 加上这个才能辨认到log4j2.yml文件 --><dependency><groupId>com.fasterxml.jackson.dataformat</groupId><artifactId>jackson-dataformat-yaml</artifactId></dependency><dependency> <!-- 引入log4j2依赖 --><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-log4j2</artifactId></dependency><!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId><exclusions><exclusion><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-logging</artifactId></exclusion><exclusion><groupId>org.slf4j</groupId><artifactId>slf4j-log4j12</artifactId></exclusion></exclusions></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-aop</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><!-- <dependency> <groupId>org.scala-lang</groupId> <artifactId>scala-library</artifactId> <version>2.11.0</version> </dependency> --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-configuration-processor</artifactId><optional>true</optional></dependency></dependencies> 2.然后更改test-service的目录结构,删除zk的配置并更改application.yml文件,目录结构与代码:
server:port: 38888
spring:application: name: test-servicedatasource:type: com.alibaba.druid.pool.DruidDataSourceurl: jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTCdriver-class-name: com.mysql.cj.jdbc.Driverusername: rootpassword: 123456
dubbo:protocol:loadbalance: leastactivethreadpool: cachedscan:base-packages: org。test.serviceapplication:qos-enable: falsename: testserverregistry:id: my-registryaddress: nacos://127.0.0.1:8848
mybatis-plus:mapper-locations: classpath:/mapper/*Mapper.xmltypeAliasesPackage: org.test.entityglobal-config:db-config:field-strategy: not-emptyid-type: autodb-type: mysqlconfiguration:map-underscore-to-camel-case: truecache-enabled: true auto-mapping-unknown-column-behavior: none
<img src=“/img/blog/20191202211833.png” alt=“20191202211833” style={{ zoom:‘100%’ }} />
3.再更改registry.conf文件,如果你的nacos是其它服务器,请改成对应都ip跟端口
registry {type = "nacos"file {name = "file.conf"}zk {cluster = "default"serverAddr = "127.0.0.1:2181"session.timeout = 6000connect.timeout = 2000}nacos {serverAddr = "localhost"namespace = ""cluster = "default"}
}
config {type = "nacos"file {name = "file.conf"}zk {serverAddr = "127.0.0.1:2181"session.timeout = 6000connect.timeout = 2000}nacos {serverAddr = "localhost"namespace = ""cluster = "default"}
}
4.接着我们运行provideApplication
启动成功啦,我们再去看seata的日志:
成功了,这下我们一样,去修改test-client的内容,首先一样application.yml,把zk换成nacos,这里就不详细描述了,把test-service内的registry.conf,复制到client项目的resources中覆盖原来的registry.conf.
然后我们可以运行clientApplication:
5.确认服务已经被发布并测试事务运行是否正常
服务成功发布出来,也被成功消费了.这下我们再去swagger中去测试回滚是否一切正常,访问http://127.0.0.1:28888/swagger-ui.html
恭喜你,看到这一定跟我一样成功了!
总结
关于nacos的使用跟seata的简单搭建已经完成了,更详细的内容希望希望大家访问以下地址阅读详细文档
nacos官网
dubbo官网
seata官网