🚧 数据库相关功能
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README.md
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README.md
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# Springboot3和JDK17的基础脚手架
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# Springboot3和JDK17的基础脚手架 - 数据库分支
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## 基础依赖
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- MySQL
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- MyBatis-Plus 3.5.15 这个版本是SpringBoot3支持的最高版本
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- jsqlparser 在MyBatis-Plus 3.5.9以后的版本,插件部分开始修改为可选依赖,所以这里手动增加。
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> 引入 MyBatis-Plus 之后请不要再次引入 MyBatis 以及 mybatis-spring-boot-starter和MyBatis-Spring,以避免因版本差异导致的问题。
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```xml
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<dependency>
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<groupId>com.mysql</groupId>
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<artifactId>mysql-connector-j</artifactId>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>com.baomidou</groupId>
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<artifactId>mybatis-plus-spring-boot3-starter</artifactId>
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<version>3.5.15</version>
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</dependency>
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<dependency>
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<groupId>com.baomidou</groupId>
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<artifactId>mybatis-plus-jsqlparser</artifactId>
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<version>3.5.14</version>
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<scope>compile</scope>
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</dependency>
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```
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## Druid数据源配置详解
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- [官方WIKI](https://github.com/alibaba/druid/wiki/%E9%A6%96%E9%A1%B5)
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### Druid多数据源说明
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添加配置
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```properties
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spring.datasource.url=
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spring.datasource.username=
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spring.datasource.password=
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# Druid 数据源配置,继承spring.datasource.* 配置,相同则覆盖
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spring.datasource.druid.initial-size=5
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spring.datasource.druid.max-active=5
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# Druid 数据源 1 配置,继承spring.datasource.druid.* 配置,相同则覆盖
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spring.datasource.druid.one.max-active=10
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spring.datasource.druid.one.max-wait=10000
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# Druid 数据源 2 配置,继承spring.datasource.druid.* 配置,相同则覆盖
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spring.datasource.druid.two.max-active=20
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spring.datasource.druid.two.max-wait=20000
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```
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# Druid 数据源配置,继承spring.datasource.* 配置,相同则覆盖
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```properties
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spring.datasource.druid.initial-size=5
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spring.datasource.druid.max-active=5
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```
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# Druid 数据源 1 配置,继承spring.datasource.druid.* 配置,相同则覆盖
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```properties
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spring.datasource.druid.one.max-active=10
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spring.datasource.druid.one.max-wait=10000
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```
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# Druid 数据源 2 配置,继承spring.datasource.druid.* 配置,相同则覆盖
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```properties
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spring.datasource.druid.two.max-active=20
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spring.datasource.druid.two.max-wait=20000
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```
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强烈注意:**Spring Boot 2.X** 版本不再支持配置继承,多数据源的话每个数据源的所有配置都需要单独配置,否则配置不会生效
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## MyBatis-Plus配置详解
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- [官网文档](https://baomidou.com/introduce/)
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