springboot+MyBatis-Plus多数据源（mysql和oracle）xml方式

参考：https://blog.csdn.net/u012075383/article/details/79304178

1.项目整体结构：

2.项目运行测试：

3.pom.xml文件：

<?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>
   <!--版本控制中心-->
   <parent>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-parent</artifactId>
      <version>2.1.4.RELEASE</version>
      <relativePath/>
   </parent>
   <groupId>com.xxxx</groupId>
   <artifactId>meeting</artifactId>
   <version>0.0.1-SNAPSHOT</version>
   <name>meeting</name>
   <description>Demo project for Spring Boot</description>

   <properties>
      <java.version>1.8</java.version>
   </properties>

   <dependencies>
      <!--Spring Boot的核心启动器，包含了自动配置、日志和YAML-->
      <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter</artifactId>
      </dependency>
      <!--springboot程序测试依赖，如果是自动创建项目默认添加-->
      <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-test</artifactId>
         <scope>test</scope>
      </dependency>
      <!--springboot web模块支持，自动帮我们引入了web模块开发需要的相关jar包-->
      <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-web</artifactId>
      </dependency>
      <!--MySQL 连接驱动依赖-->
      <dependency>
         <groupId>mysql</groupId>
         <artifactId>mysql-connector-java</artifactId>
         <scope>runtime</scope>
      </dependency>
      <!-- MyBatis-Plus -->
      <dependency>
         <groupId>com.baomidou</groupId>
         <artifactId>mybatis-plus-boot-starter</artifactId>
         <version>3.0.5</version>
      </dependency>
      <dependency>
         <groupId>com.baomidou</groupId>
         <artifactId>mybatis-plus</artifactId>
         <version>3.0.5</version>
      </dependency>

      <!--lombok-->
      <dependency>
         <groupId>org.projectlombok</groupId>
         <artifactId>lombok</artifactId>
         <version>1.18.0</version>
      </dependency>
      <!--阿里巴巴json库-->
      <dependency>
         <groupId>com.alibaba</groupId>
         <artifactId>fastjson</artifactId>
         <version>1.2.15</version>
      </dependency>
      <!--阿里巴巴druid-->
      <dependency>
         <groupId>com.alibaba</groupId>
         <artifactId>druid-spring-boot-starter</artifactId>
         <version>1.1.10</version>
      </dependency>
      <!--orcale数据库依赖-->
      <dependency>
         <groupId>com.oracle</groupId>
         <artifactId>ojdbc6</artifactId>
         <version>11.2.0.3</version>
      </dependency>
      <!--aop-->
      <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-aop</artifactId>
      </dependency>
      <!--google.guava-->
      <dependency>
         <groupId>com.google.guava</groupId>
         <artifactId>guava</artifactId>
         <version>23.6-jre</version>
      </dependency>
   </dependencies>

   <!--maven构建-->
   <build>
      <plugins>
         <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
         </plugin>
      </plugins>
   </build>

</project>

4.application.yml文件：

server:
  port: 9002
  servlet:
    context-path: /meeting

spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    druid:
      db1:
        url: jdbc:mysql://localhost:3306/meeting?serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=utf8&useSSL=true
        username: root
        password: root
        driverClassName: com.mysql.cj.jdbc.Driver
      db2:
        url: jdbc:oracle:thin:@xxx.xxx.xx.xxx:xxxx:数据库名字
        username: test
        password: 123456
        driverClassName: oracle.jdbc.driver.OracleDriver
5.启动类：MeetingApplication

@SpringBootApplication
@MapperScan("com.xxxx.meeting.mapper")
public class MeetingApplication {

   public static void main(String[] args) {
      SpringApplication.run(MeetingApplication.class, args);
   }

}

6.