idea springboot 配置MySQL SQL server双数据库

首先导入相关的Jar包（其他最基本的就省略不写了）

		<dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

		<dependency>
            <groupId>com.microsoft.sqlserver</groupId>
            <artifactId>mssql-jdbc</artifactId>
            <version>6.2.2.jre8</version>
        </dependency>

然后配置 application.properties

在properties里面配置两个数据源 一个master 一个other并把相应的数据添加上

#注意classpath对应的位置 否则加载不到
mybatis.mapper-locations=classpath*:/*mapper/*.xml
spring.datasource.master.jdbc-url=jdbc:mysql://localhost:33051/plmss?useUnicode=true&characterEncoding=utf-8
spring.datasource.master.username=root
spring.datasource.master.password=root
spring.datasource.master.driver-class-name=com.mysql.jdbc.Driver

spring.datasource.other.jdbc-url=jdbc:sqlserver://localhost:1433;DatabaseName=user
spring.datasource.other.username=user
spring.datasource.other.password=user
spring.datasource.other.driver-class-name=com.microsoft.sqlserver.jdbc.SQLServerDriver

主数据库配置：

新建一个datasource 里面专门放置 如图下

MySQL 数据库配置

package com.lenovo.datasource;

import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
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 javax.sql.DataSource;

@Configuration
@MapperScan(basePackages ="com.lenovo.mapper", sqlSessionFactoryRef = "masterSqlSessionFactory")
public class MybatisDbMasterConfig {
    @Primary
    @Bean(name = "masterDataSource")
    @ConfigurationProperties(prefix = "spring.datasource.master")
    public DataSource dataSource() {
        return DataSourceBuilder.create().build();
    }

    @Primary
    @Bean(name = "masterSqlSessionFactory")
    public SqlSessionFactory sqlSessionFactory(@Qualifier("masterDataSource") DataSource dataSource) throws Exception {
        SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
        factoryBean.setDataSource(dataSource);
        factoryBean.setTypeAliasesPackage("com.lenovo.entity");
        factoryBean.setMapperLocations(
                new PathMatchingResourcePatternResolver().getResources("classpath:mapper/*.xml"));
        return factoryBean.getObject();
    }

    @Primary
    @Bean(name = "masterTransactionManager")
    public DataSourceTransactionManager transactionManager(@Qualifier("masterDataSource") DataSource dataSource) {
        return new DataSourceTransactionManager(dataSource);
    }

    @Bean(name = "masterSqlSessionTemplate")
    @Primary
    public SqlSessionTemplate testSqlSessionTemplate(
            @Qualifier("masterSqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
        return new SqlSessionTemplate(sqlSessionFactory);
    }
}

SQL server数据库配置

package com.lenovo.datasource;

import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import javax.sql.DataSource;

@Configuration
@MapperScan(basePackages = "com.lenovo.otherDB", sqlSessionFactoryRef = "otherSqlSessionFactory")
public class MybatisDbOtherConfig {
    @Bean(name = "otherDataSource")
    @ConfigurationProperties(prefix = "spring.datasource.other")
    public DataSource dataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean(name = "otherTransactionManager")
    public DataSourceTransactionManager transactionManager(@Qualifier("otherDataSource") DataSource dataSource) {
        return new DataSourceTransactionManager(dataSource);
    }

    @Bean(name = "otherSqlSessionFactory")
    public SqlSessionFactory basicSqlSessionFactory(@Qualifier("otherDataSource") DataSource basicDataSource) throws Exception {
        SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
        factoryBean.setDataSource(basicDataSource);
        factoryBean.setMapperLocations(
                new PathMatchingResourcePatternResolver().getResources("classpath:othermapper/*.xml"));
        return factoryBean.getObject();
    }

    @Bean(name = "otherSqlSessionTemplate")
    public SqlSessionTemplate testSqlSessionTemplate(
            @Qualifier("otherSqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
        return new SqlSessionTemplate(sqlSessionFactory);
    }
}

最后在启动类上添加注解启动即可

package com.lenovo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.web.servlet.MultipartConfigFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.scheduling.annotation.EnableScheduling;

import javax.servlet.MultipartConfigElement;

@SpringBootApplication
@EnableConfigurationProperties
@EnableScheduling
public class PlmselfserviceApplication{

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

 
}

调用在接口实现类上

 	@Autowired
    private OtherDBMapper otherDBMapper;

包结构总览

楼主亲测 并对其进行修改