1、pom.xml
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.linjb</groupId>
<artifactId>springboot-mybatis-multi-datasource</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>springboot-mybatis-multi-datasource Maven Webapp</name>
<url>http://maven.apache.org</url>
<!-- Spring Boot 啟動父依賴 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.1.RELEASE</version>
</parent>
<properties>
<mybatis-spring-boot>1.2.0</mybatis-spring-boot>
<mysql-connector>5.1.39</mysql-connector>
<druid>1.0.18</druid>
</properties>
<dependencies>
<!-- Spring Boot Web 依賴 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- Spring Boot Test 依賴 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- Spring Boot Mybatis 依賴 -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>${mybatis-spring-boot}</version>
</dependency>
<!-- MySQL 連接配接驅動依賴 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!-- Druid 資料連接配接池依賴 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid}</version>
</dependency>
<!-- Junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
</dependencies>
<build>
<finalName>springboot-mybatis-multi-datasource</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
</project>
2、application.properties
## master 資料源配置
master.datasource.url=jdbc:mysql://localhost:3306/springbootdb?useUnicode=true&characterEncoding=utf8
master.datasource.username=root
master.datasource.password=bgsn
master.datasource.driverClassName=com.mysql.jdbc.Driver
## cluster 資料源配置
cluster.datasource.url=jdbc:mysql://localhost:3306/springbootdb_cluster?useUnicode=true&characterEncoding=utf8
cluster.datasource.username=root
cluster.datasource.password=bgsn
cluster.datasource.driverClassName=com.mysql.jdbc.Driver
3、資料源配置
多資料源配置的時候注意，必須要有一個主資料源，即 MasterDataSourceConfig 配置：
package com.linjb.config;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import com.alibaba.druid.pool.DruidDataSource;
import javax.sql.DataSource;
@Configuration
// 掃描 Mapper 接口并容器管理
@MapperScan(basePackages = MasterDataSourceConfig.PACKAGE, sqlSessionFactoryRef = "masterSqlSessionFactory")
public class MasterDataSourceConfig {
// 精确到 master 目錄，以便跟其他資料源隔離
static final String PACKAGE = "com.linjb.dao.master";
static final String MAPPER_LOCATION = "classpath:mapper/master
// Spring Boot 應用的辨別
@SpringBootApplication
public class Application {
public static void main(String[] args) {
// 程式啟動入口
// 啟動嵌入式的 Tomcat 并初始化 Spring 環境及其各 Spring 元件
SpringApplication.run(Application.class,args);
}
}