分布式事务TX-LCN之服务端搭建

原创

Jarvan_IV 2023-08-08 19:36:49 ©著作权

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随着互联化的蔓延，各种项目都逐渐向分布式服务做转换。如今微服务已经普遍存在，本地事务已经无法满足分布式的要求，由此分布式事务问题诞生。分布式事务被称为世界性的难题，目前分布式事务存在两大理论依据：CAP定律 BASE理论。

准备工作

jdk1.8、mysql、redis、idea

1、数据库脚本

tx-manager脚本

CREATE DATABASE IF NOT EXISTS `tx-manager` DEFAULT CHARACTER SET = utf8;
Use `tx-manager`;

CREATE TABLE IF NOT EXISTS `t_tx_exception`(
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `group_id` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
  `unit_id` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
  `mod_id` varchar(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
  `transaction_state` tinyint(4) NULL DEFAULT NULL,
  `registrar` tinyint(4) NULL DEFAULT NULL,
  `remark` varchar(4096) NULL DEFAULT  NULL,
  `ex_state` tinyint(4) NULL DEFAULT NULL COMMENT '0 未解决 1已解决',
  `create_time` datetime(0) NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = Dynamic;

tx_logger脚本

CREATE DATABASE IF NOT EXISTS `tx_logger` DEFAULT CHARACTER SET = utf8;
Use `tx_logger`;

CREATE TABLE IF NOT EXISTS `t_logger`(
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `group_id` varchar(64) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `unit_id` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `tag` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `content` varchar(1024) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `create_time` varchar(30) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `app_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 19 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

2、相关pom文件

父pom

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>tx-lcn-demo</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>txlcn-tm</module>
        <module>txlcn-client-demo</module>
    </modules>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.7.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

</project>

Txlcn-tm的pom

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>tx-lcn-demo</artifactId>
        <groupId>org.example</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>


    <artifactId>txlcn-tm</artifactId>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.codingapi.txlcn</groupId>
            <artifactId>txlcn-tm</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

    </dependencies>

</project>

3、配置文件

spring.application.name=TX-Manager
server.port=7970

######
# ## 你可以在 https://txlcn.org/zh-cn/docs/setting/manager.html 看到所有配置
### 官网好像挂好久啦 哈哈 — —
spring.profiles.active=dev

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://192.168.1.180:3306/tx-manager?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&useSSL=false&zeroDateTimeBehavior=convertToNull
spring.datasource.username=【你的数据库账号】
spring.datasource.password=【你的数据库密码】
spring.jpa.database-platform=org.hibernate.dialect.MySQL5InnoDBDialect
spring.jpa.hibernate.ddl-auto=update

tx-lcn.logger.enabled=true
tx-lcn.logger.driver-class-name=com.mysql.cj.jdbc.Driver
tx-lcn.logger.jdbc-url=jdbc:mysql://192.168.1.180:3306/tx_logger?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&useSSL=false&zeroDateTimeBehavior=convertToNull
tx-lcn.logger.username=【你的数据库账号】
tx-lcn.logger.password=【你的数据库密码】

# redis信息
spring.redis.host=【redis地址】
spring.redis.port=6379
spring.redis.password=123456

# TM后台登录密码，默认值 codingapi
tx-lcn.manager.admin-key=shuhai@123
tx-lcn.manager.host=127.0.0.1
tx-lcn.manager.port=8070

# 分布式事务执行总时间(ms). 默认为8000
tx-lcn.manager.dtx-time=15000

4、启动类

@SpringBootApplication
@EnableTransactionManagerServer
public class TransactionManagerApp {
    public static void main(String[] args) {
        SpringApplication.run(TransactionManagerApp.class, args);
    }
}