SpringBoot：结合Mybatis plus 配置Mysql多数据源

主题：SpringBoot结合Mybatis plus 配置多数据源

示例：下面通过Mysql多个库，各查询一张表来演示。

1 整体工程结构，如下图：

          

2 详细类说明

2.1  创建Maven工程

• pom.xml配置内容如下：

<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>com.test.datasource</groupId>
	<artifactId>springboot-multy-datasource-demo</artifactId>
	<version>0.0.1-SNAPSHOT</version>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.1.1.RELEASE</version>
	</parent>

	<properties>
		<java.version>1.8</java.version>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

		<shiro-spring.version>1.4.0</shiro-spring.version>
		<jedis.version>2.9.0</jedis.version>
		<druid.version>1.1.16</druid.version>
		<thymeleaf-extras-shiro.viersion>2.0.0</thymeleaf-extras-shiro.viersion>
	</properties>

	<dependencies>
		<!-- springboot core jar -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

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

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

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-configuration-processor</artifactId>
			<optional>true</optional>
		</dependency>

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

		<!-- SpringBoot Test -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>

		<!-- jackson-annotations -->
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-annotations</artifactId>
		</dependency>

		<!-- Mysql DB -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>m