1. The configuration database master-slave synchronization reference https://blog.csdn.net/YYpawn/article/details/87808107
2. Introduction of dependence
<?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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.mysql</groupId>
<artifactId>masterslave</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>masterslave</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- mybatis-plus begin -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatisplus-spring-boot-starter</artifactId>
<version>1.0.5</version>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus</artifactId>
<version>2.1.8</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<!-- mybatis-plus end -->
<!--mysql-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.34</version>
<scope>runtime</scope>
</dependency>
<!-- 模板引擎 -->
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity-engine-core</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.1</version>
</dependency>
<!--主从配置依赖-->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>dynamic-datasource-spring-boot-starter</artifactId>
<version>2.4.2</version>
</dependency>
<!--主从end-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
3. Database Configuration
server:
port: 8555
spring:
datasource:
dynamic:
primary: master
datasource:
master:
username: root
password: root
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://192.168.0.252:3306/istest?useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC
slave_1:
username: root
password: root
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://192.168.0.65:3306/istest?useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC
logging:
config: classpath:logback-spring.xml
level:
root: debug
mybatis-plus:
mapper-locations: classpath:/mapper/*.xml
typeAliasesPackage: com.mysql.masterslave.model.entity
4.mybatisplus Configuration
5. Write the test class
6. Test access localhost: 8555 / user / add, the data are written to the main library from the library, the console display
Access query interface, localhost: 8555 / user / list, the console display
This process is critical to introduce dynamic-datasource-spring-boot-starter depend, in service use @RS () notes, do not pass parameters to use the main library default, @ DS ( "slave_1") using slave_1 library.
demo Institute Add: Https://Github.Com/YYpawns/springboot-mybatis.Git