seata1.2.0搭建
2020-07-28 本文已影响0人
浅乔未果
选择版本说明
Snipaste_2020-07-27_19-22-11.png
在LINUX下配置
nacos自己参考搭建
1. 下载服务
首先访问:https://seata.io/zh-cn/blog/download.html
下载我们需要使用的seata1.2服务
2. 创建表和数据库
在你的参与全局事务的数据库中加入undo_log这张表
表的查找：
在官网下查找资源，下载官方配置资源
Snipaste_2020-07-28_10-22-00.png
根据下载到的资源下查找相对应的表sql导入
Snipaste_2020-07-28_10-22-57.png
附上:
-- for AT mode you must to init this sql for you business database. the seata server not need it.
CREATE TABLE IF NOT EXISTS `undo_log`
(
`id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT 'increment id',
`branch_id` BIGINT(20) NOT NULL COMMENT 'branch transaction id',
`xid` VARCHAR(100) NOT NULL COMMENT 'global transaction id',
`context` VARCHAR(128) NOT NULL COMMENT 'undo_log context,such as serialization',
`rollback_info` LONGBLOB NOT NULL COMMENT 'rollback info',
`log_status` INT(11) NOT NULL COMMENT '0:normal status,1:defense status',
`log_created` DATETIME NOT NULL COMMENT 'create datetime',
`log_modified` DATETIME NOT NULL COMMENT 'modify datetime',
PRIMARY KEY (`id`),
UNIQUE KEY `ux_undo_log` (`xid`, `branch_id`)
) ENGINE = InnoDB
AUTO_INCREMENT = 1
DEFAULT CHARSET = utf8 COMMENT ='AT transaction mode undo table';
在你的mysql数据库中创建名为seata的库,并使用以下下sql
根据下载到的资源下查找相对应的表sql导入
Snipaste_2020-07-28_10-31-24.png
附上:
-- -------------------------------- The script used when storeMode is 'db' --------------------------------
-- the table to store GlobalSession data
CREATE TABLE IF NOT EXISTS `global_table`
(
`xid` VARCHAR(128) NOT NULL,
`transaction_id` BIGINT,
`status` TINYINT NOT NULL,
`application_id` VARCHAR(32),
`transaction_service_group` VARCHAR(32),
`transaction_name` VARCHAR(128),
`timeout` INT,
`begin_time` BIGINT,
`application_data` VARCHAR(2000),
`gmt_create` DATETIME,
`gmt_modified` DATETIME,
PRIMARY KEY (`xid`),
KEY `idx_gmt_modified_status` (`gmt_modified`, `status`),
KEY `idx_transaction_id` (`transaction_id`)
) ENGINE = InnoDB
DEFAULT CHARSET = utf8;
-- the table to store BranchSession data
CREATE TABLE IF NOT EXISTS `branch_table`
(
`branch_id` BIGINT NOT NULL,
`xid` VARCHAR(128) NOT NULL,
`transaction_id` BIGINT,
`resource_group_id` VARCHAR(32),
`resource_id` VARCHAR(256),
`branch_type` VARCHAR(8),
`status` TINYINT,
`client_id` VARCHAR(64),
`application_data` VARCHAR(2000),
`gmt_create` DATETIME(6),
`gmt_modified` DATETIME(6),
PRIMARY KEY (`branch_id`),
KEY `idx_xid` (`xid`)
) ENGINE = InnoDB
DEFAULT CHARSET = utf8;
-- the table to store lock data
CREATE TABLE IF NOT EXISTS `lock_table`
(
`row_key` VARCHAR(128) NOT NULL,
`xid` VARCHAR(96),
`transaction_id` BIGINT,
`branch_id` BIGINT NOT NULL,
`resource_id` VARCHAR(256),
`table_name` VARCHAR(32),
`pk` VARCHAR(36),
`gmt_create` DATETIME,
`gmt_modified` DATETIME,
PRIMARY KEY (`row_key`),
KEY `idx_branch_id` (`branch_id`)
) ENGINE = InnoDB
DEFAULT CHARSET = utf8;
3. 修改config.txt文件
根据下载到的资源下查找相对应的文件,在以往版本中为nacos-config.txt
Snipaste_2020-07-28_10-35-43.png
修改后：
service.vgroupMapping.nacos_seata_tx_group=default
service.default.grouplist=127.0.0.1:8091
service.enableDegrade=false
service.disableGlobalTransaction=false
store.mode=db
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.jdbc.Driver
store.db.url=jdbc:mysql://127.0.0.1:3306/seata?useUnicode=true
store.db.user=root
store.db.password=root
store.db.minConn=5
store.db.maxConn=30
store.db.globalTable=global_table
store.db.branchTable=branch_table
store.db.queryLimit=100
store.db.lockTable=lock_table
store.db.maxWait=5000
-
注意
vgroupMapping在旧版中使用的是vgroup_mapping,nacos_seata_tx_group自行取名，在下文中需要配置 -
数据库地址，用户名密码，如果是mysql8的需要修改驱动名称并加入相对应的驱动包
运行并将资源导入nacos
[root@localhost conf]# ./nacos-config.sh
-bash: ./nacos-config.sh: Permission denied
[root@localhost conf]# chmod 777 nacos-config.sh
[root@localhost conf]# ./nacos-config.sh
set nacosAddr=localhost:8848
set group=SEATA_GROUP
Set service.vgroupMapping.nacos_seata_tx_group=default successfully
Set service.default.grouplist=127.0.0.1:8091 successfully
Set service.enableDegrade=false successfully
Set service.disableGlobalTransaction=false successfully
Set store.mode=db successfully
Set store.db.datasource=druid successfully
Set store.db.dbType=mysql successfully
Set store.db.driverClassName=com.mysql.jdbc.Driver successfully
Set store.db.url=jdbc:mysql://127.0.0.1:3306/seata?useUnicode=true successfully
Set store.db.user=root successfully
Set store.db.password=57328242 successfully
Set store.db.minConn=5 successfully
Set store.db.maxConn=30 successfully
Set store.db.globalTable=global_table successfully
Set store.db.branchTable=branch_table successfully
Set store.db.queryLimit=100 successfully
Set store.db.lockTable=lock_table successfully
Set store.db.maxWait=5000 successfully
=========================================================================
Complete initialization parameters, total-count:18 , failure-count:0
=========================================================================
Init nacos config finished, please start seata-server.
导入成功后：查看nacos出现相关的配置
Snipaste_2020-07-28_10-58-22.png
创建dev命名空间
Snipaste_2020-07-28_12-13-11.png
将public中的配置信息导入到dev中
Snipaste_2020-07-28_12-14-32.png
4. 在idea引入相对应的依赖
springcloud:
<!--seata-->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-seata</artifactId>
<version>2.2.0.RELEASE</version>
<exclusions>
<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>
</dependency>
5. 更改server中的registry.conf
registry {
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "nacos"
nacos {
application = "seata-server"
serverAddr = "localhost"
namespace = "1ef39358-af4a-438b-8cf0-1ea1fb31de5f" #导入dev命名空间的id
cluster = "default"
username = "nacos"
password = "nacos"
}
}
config {
# file、nacos 、apollo、zk、consul、etcd3
type = "nacos"
nacos {
serverAddr = "localhost"
namespace = "1ef39358-af4a-438b-8cf0-1ea1fb31de5f" #导入dev命名空间的id
group = "SEATA_GROUP"
username = "nacos"
password = "nacos"
}
}
6. 进入bin目录下启动seata
sh seata-server.sh -p 8091 -h 192.168.235.130
官网提供相关命令
- 命令启动: seata-server.sh -h 127.0.0.1 -p 8091 -m db -n 1 -e test
-
开启多个:seata-server.sh -h 127.0.0.1 -p 8092 -m db -n 1 -e test(直接在另外的窗口修改端口号注册)
Snipaste_2020-07-28_13-04-40.png
- 官网提供相关命令
-h: 注册到注册中心的ip
-p: Server rpc 监听端口
-m: 全局事务会话信息存储模式，file、db、redis，优先读取启动参数 (Seata-Server 1.3及以上版本支持redis)
-n: Server node，多个Server时，需区分各自节点，用于生成不同区间的transactionId，以免冲突
-e: 多环境配置参考 http://seata.io/en-us/docs/ops/multi-configuration-isolation.html
7. 创建application.yml
根据下载到的资源下查找相对应的文件，并修改(除必要配置，默认即可)
Snipaste_2020-07-28_11-10-05.png
seata:
enabled: true
application-id: applicationName
tx-service-group: nacos_seata_tx_group #与上文配置相对应
config:
type: nacos
nacos:
namespace: 1ef39358-af4a-438b-8cf0-1ea1fb31de5f #与上文对应
serverAddr: 192.168.235.130:8848 #nacos的地址和端口
group: SEATA_GROUP
userName: "nacos"
password: "nacos"
registry:
type: nacos
nacos:
application: seata-server
server-addr: 192.168.235.130:8848
namespace: 1ef39358-af4a-438b-8cf0-1ea1fb31de5f #与上文对应
userName: "nacos"
password: "nacos"
8. 启动微服务
druid详细配置信息缺失
Snipaste_2020-07-28_12-17-19.png
加入druid配置信息
yaml完整配置
spring:
application:
name: seata-order-service
cloud:
nacos:
discovery:
server-addr: 192.168.235.130:8848
datasource:
type: com.alibaba.druid.pool.DruidDataSource
url: jdbc:mysql://192.168.235.130:3306/seata_order?useUnicode=true&characterEncoding=utf-8&useSSL=false
username: root
password: 57328242
driver-class-name: org.gjt.mm.mysql.Driver
druid: #druid配置
filters: stat
initialSize: 2
maxActive: 300
maxWait: 60000
timeBetweenEvictionRunsMillis: 60000
minEvictableIdleTimeMillis: 300000
validationQuery: SELECT 1
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
poolPreparedStatements: false
maxPoolPreparedStatementPerConnectionSize: 200
seata:
enabled: true
application-id: applicationName
tx-service-group: nacos_seata_tx_group
config:
type: nacos
nacos:
namespace: 1ef39358-af4a-438b-8cf0-1ea1fb31de5f
serverAddr: 192.168.235.130:8848
group: SEATA_GROUP
userName: "nacos"
password: "nacos"
registry:
type: nacos
nacos:
application: seata-server
server-addr: 192.168.235.130:8848
namespace: 1ef39358-af4a-438b-8cf0-1ea1fb31de5f
userName: "nacos"
password: "nacos"
9. 其他
业务系统集成Client
步骤一：添加seata依赖（建议单选）
-
依赖seata-all
-
依赖seata-spring-boot-starter，支持yml、properties配置(.conf可删除)，内部已依赖seata-all
-
依赖spring-cloud-alibaba-seata，内部集成了seata，并实现了xid传递
步骤二：undo_log建表、配置参数
步骤三：数据源代理(不支持自动和手动配置并存,不支持XA数据源自动代理)
- 0.9.0版本开始seata支持自动代理数据源
1.1.0: seata-all取消属性配置，改由注解@EnableAutoDataSourceProxy开启，并可选择jdk proxy或者cglib proxy
1.0.0: client.support.spring.datasource.autoproxy=true
0.9.0: support.spring.datasource.autoproxy=true
- 手动配置可参考下方的例子
@Primary
@Bean("dataSource")
public DataSourceProxy dataSource(DataSource druidDataSource) {
//AT 代理 二选一
return new DataSourceProxy(druidDataSource);
//XA 代理
return new DataSourceProxyXA(druidDataSource)
}
步骤四：初始化GlobalTransactionScanner
- 手动
@Bean
public GlobalTransactionScanner globalTransactionScanner() {
String applicationName = this.applicationContext.getEnvironment().getProperty("spring.application.name");
String txServiceGroup = this.seataProperties.getTxServiceGroup();
if (StringUtils.isEmpty(txServiceGroup)) {
txServiceGroup = applicationName + "-fescar-service-group";
this.seataProperties.setTxServiceGroup(txServiceGroup);
}
return new GlobalTransactionScanner(applicationName, txServiceGroup);
}
- 自动，引入seata-spring-boot-starter、spring-cloud-starter-alibaba-seata等jar
步骤五：实现xid跨服务传递
-
手动 参考源码integration文件夹下的各种rpc实现 module
-
自动 springCloud用户可以引入spring-cloud-starter-alibaba-seata，内部已经实现xid传递
