SpringBoot Mybatisplus 多数据源使用

文章目录

• ​​一、mybatisplus3.x​​

• ​​1. 依赖​​
• ​​2. 启动类添加注解​​
• ​​3. 添加多数据源注解​​
• ​​4. yml​​
• ​​5. 测试类​​
• ​​6. 源码地址​​

为了适配新的需求，需要同时支持mysql和oracle数据库操作多数据源，因此项目中集成​​dynamic-datasource-spring-boot-starter​​​,支持很多场景。
例如：在不配置注解​​​@DS("oracle")​​​的场景，默认加载master主数据源，如果配置了​​@DS("oracle")​​则会加载配置的数据源。

一、mybatisplus3.x

1. 依赖

<!--整合Knife4j-->
        <dependency>
            <groupId>com.github.xiaoymin</groupId>
            <artifactId>knife4j-spring-boot-starter</artifactId>
            <version>2.0.4</version>
        </dependency>
        <!--mybatis-plus-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.3.0</version>
        </dependency>
        <!--多数据源  以下版本任选其一-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>dynamic-datasource-spring-boot-starter</artifactId>
            <version>3.2.0</version>
        </dependency>
        <!--oracle 数据库驱动-->
        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc6</artifactId>
            <version>11.2.0.3</version>
        </dependency>
        <!--druid 监控-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.13</version>
        </dependency>
        <!--mysql 数据库驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.21</version>
        </dependency>
        <!--lombok 代码工具-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <!--devtools热部署-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
            <scope>true</scope>
        </dependency>
        <!--springMVC 启动器-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

2. 启动类添加注解

3. 添加多数据源注解

4. yml

spring:
  datasource:
    dynamic:
      primary: master #设置默认的数据源或者数据源组,默认值即为master
      strict: false
      datasource:
        master:
          username: root
          password: root
          url: jdbc:mysql://127.0.0.1:3306/test?autoReconnect=true&useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=CONVERT_TO_NULL&useSSL=false&serverTimezone=CTT
          driver-class-name: com.mysql.cj.jdbc.Driver
        slave_1:
          username: root
          password: root
          url: jdbc:mysql://127.0.0.1:3306/test1?autoReconnect=true&useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=CONVERT_TO_NULL&useSSL=false&serverTimezone=CTT
          driver-class-name: com.mysql.cj.jdbc.Driver
        slave_2:
          username: root
          password: root
          url: jdbc:mysql://127.0.0.1:3306/test2?autoReconnect=true&useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=CONVERT_TO_NULL&useSSL=false&serverTimezone=CTT
          driver-class-name: com.mysql.cj.jdbc.Driver
        oracle:
          driver-class-name: oracle.jdbc.OracleDriver
          url: jdbc:oracle:thin:@127.0.0.1:1521:orcl
          username: orcl
          password: orcl
          filters: wall,mergeStat
logging:
  level:
    com.gblfy:

5. 测试类

在浏览器访问：​​http://localhost:8080/doc.html​​ 咱们写的接口就会显示，依次测试即可！

6. 源码地址

​​https://gitee.com/gb_90/dynamic-datasource​​

具体详细：请参考官网​​https://mybatis.plus/guide/dynamic-datasource.html​​