springboot项目整合dynamic-datasource实现多数据源并且实现事务

框架：springboot+mybatis
数据库：mysql5.7+sqlserver2012
dynamic-datasource3.5.0（实现多数据源）

添加dynamic-datasource的依赖

	           com.baomidou
	            dynamic-datasource-spring-boot-starter
	            3.5.0

配置数据源

server:
  port: 8081

spring:
  #全局返回时间格式
  jackson:
    date-format: yyyy-MM-dd HH:mm:ss
    time-zone: Asia/Shanghai
  servlet:
    multipart:
      enabled: true
      file-size-threshold: 0B
      maxFileSize: 100MB
      maxRequestSize: 1000MB
  datasource:
    hikari:
      minimum-idle: 4
      maximum-pool-size: 16
      connection-timeout: 10000
      idle-timeout: 30000
      connection-init-sql: set names utf8mb4
    dynamic:
      primary: mysql
      datasource:
        mysql:
          driver-class-name: com.mysql.cj.jdbc.Driver
          url: jdbc:mysql://localhost:3306/crud?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8
          username: root
          password: root
        sqlserver:
          driver-class-name: com.microsoft.sqlserver.jdbc.SQLServerDriver
          url: jdbc:sqlserver://localhost:1433;Database=crud
          username: sa
          password: 123456
        mysql1:
          driver-class-name: com.mysql.cj.jdbc.Driver
          url: jdbc:mysql://localhost:3306/crudd?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8
          username: root
          password: root

mybatis:
  type-aliases-package: com.wz.demo.entity
  mapper-locations: classpath:*
public interface TransTestMapper {
    @DS("sqlserver")
    List selectLike(TransTest transTest);
    @DS("sqlserver")
    int insertUser(TransTest transTest);
}

package com.wz.demo.mapper;

import com.baomidou.dynamic.datasource.annotation.DS;
import com.wz.demo.entity.User;
import org.apache.ibatis.annotations.Mapper;

import java.util.List;


@Mapper
@DS("mysql")
public interface UserMapper {
    List getAll();
    int deleteId(int id);
    int insertUser(User user);
    int updateUser(User user);
    List selectLike(User user);
    @DS("sqlserver")
    List selectSql(User user);
    @DS("mysql1")
    int insertMysql1User(User user);
}

多数据源事务可以直接在方法上写这个@DSTransactional注解

	@Override
    @DSTransactional
    public int transInsert(TransTest transTest) {
        User user = new User();
        user.setId(transTest.getId());
        user.setPassword(transTest.getPassword());
        user.setAddress(transTest.getAddress());
        user.setName(transTest.getName());
        userMapper.insertUser(user);
        userMapper.insertMysql1User(user);
        transTestMapper.insertUser(transTest);
        return 1;
    }

注意：一开始我的dynamic-datasource pom依赖版本是2.5.4，发现这个版本用不了这个注解，换成3.5.0版本就可以用了

代码都已经上传至gitee上
https://gitee.com/wen-zhan/springboot