没什么所谓 發表於 2026-1-10 15:23:36

SpringBoot中的双数据源配置过程

<div id="navCategory"><h5 class="catalogue">目录</h5><ul class="first_class_ul"><li>1.引入使用的数据源类型(mysql oracle sqlserver等)依赖</li><li>2.yml中配置数据源</li><li>3.数据源的配合</li><li>4.JdbcTemplate的配置</li><li>5.分别配置两个数据源的使用的包路径</li><li>总结</li></ul></div><p class="maodian"></p><h2>1.引入使用的数据源类型(mysql oracle sqlserver等)依赖</h2>
<p>本文配置为oracel和postgresql</p>
<div class="jb51code"><pre class="brush:xml;">      &lt;dependency&gt;
            &lt;groupId&gt;com.oracle&lt;/groupId&gt;
            &lt;artifactId&gt;ojdbc6&lt;/artifactId&gt;
            &lt;version&gt;11.2.0.3&lt;/version&gt;
      &lt;/dependency&gt;
         &lt;dependency&gt;
            &lt;groupId&gt;org.postgresql&lt;/groupId&gt;
            &lt;artifactId&gt;postgresql&lt;/artifactId&gt;
      &lt;/dependency&gt;
      
</pre></div>
<p class="maodian"></p><h2>2.yml中配置数据源</h2>
<p style="text-align:center"><img alt="" src="https://img.jbzj.com/file_images/article/202601/2026011015243640.png" /></p>
<p class="maodian"></p><h2>3.数据源的配合</h2>
<div class="jb51code"><pre class="brush:java;">package com.cbd.findig.data.process.config;

import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;

import javax.sql.DataSource;

/**
* 多数据源配置
*/
@Configuration
public class DataSourceConfig {

    //主数据源配置 ds1数据源
    @Primary
    @Bean(name = "ds1DataSourceProperties")
    @ConfigurationProperties(prefix = "spring.datasource.ds1")
    public DataSourceProperties ds1DataSourceProperties() {
      return new DataSourceProperties();
    }

    //主数据源 ds1数据源
    @Primary
    @Bean(name = "ds1DataSource")
    public DataSource ds1DataSource(@Qualifier("ds1DataSourceProperties") DataSourceProperties dataSourceProperties) {
      return dataSourceProperties.initializeDataSourceBuilder().build();
    }

    //第二个ds2数据源配置
    @Bean(name = "ds2DataSourceProperties")
    @ConfigurationProperties(prefix = "spring.datasource.ds2")
    public DataSourceProperties ds2DataSourceProperties() {
      return new DataSourceProperties();
    }

    //第二个ds2数据源
    @Bean("ds2DataSource")
    public DataSource ds2DataSource(@Qualifier("ds2DataSourceProperties") DataSourceProperties dataSourceProperties) {
      return dataSourceProperties.initializeDataSourceBuilder().build();
    }

}

</pre></div>
<p class="maodian"></p><h2>4.JdbcTemplate的配置</h2>
<div class="jb51code"><pre class="brush:java;">package com.cbd.findig.data.process.config;

import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.jdbc.core.JdbcTemplate;

import javax.sql.DataSource;

/**
* JdbcTemplate多数据源配置
* 依赖于数据源配置
*
* @see DataSourceConfig
*/
@Configuration
public class JdbcTemplateDataSourceConfig {

    //JdbcTemplate主数据源ds1数据源
    @Primary
    @Bean(name = "ds1JdbcTemplate")
    public JdbcTemplate ds1JdbcTemplate(@Qualifier("ds1DataSource") DataSource dataSource) {
      return new JdbcTemplate(dataSource);
    }

    //JdbcTemplate第二个ds2数据源
    @Bean(name = "ds2JdbcTemplate")
    public JdbcTemplate ds2JdbcTemplate(@Qualifier("ds2DataSource") DataSource dataSource) {
      return new JdbcTemplate(dataSource);
    }
}
</pre></div>
<p class="maodian"></p><h2>5.分别配置两个数据源的使用的包路径</h2>
<p>（注意换为自己的包路径）</p>
<div class="jb51code"><pre class="brush:java;">package com.cbd.findig.data.process.config;

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.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;

/**
* Mybatis主数据源ds1配置
* 多数据源配置依赖数据源配置
* @seeDataSourceConfig
*/
@Configuration
@MapperScan(basePackages ="com.cbd.findig.data.process.mapper.**", sqlSessionTemplateRef= "ds1SqlSessionTemplate")
public class MybatisPlusConfig4ds1 {

    //主数据源 ds1数据源
    @Primary
    @Bean("ds1SqlSessionFactory")
    public SqlSessionFactory ds1SqlSessionFactory(@Qualifier("ds1DataSource") DataSource dataSource) throws Exception {
       SqlSessionFactoryBean sqlSessionFactory = new SqlSessionFactoryBean();
      sqlSessionFactory.setDataSource(dataSource);
      sqlSessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver().
                        getResources("classpath*:com/cbd/findig/data/process/mapper/**/*.xml"));
      return sqlSessionFactory.getObject();
    }

    @Primary
    @Bean(name = "ds1TransactionManager")
    public DataSourceTransactionManager ds1TransactionManager(@Qualifier("ds1DataSource") DataSource dataSource) {
      return new DataSourceTransactionManager(dataSource);
    }

    @Primary
    @Bean(name = "ds1SqlSessionTemplate")
    public SqlSessionTemplate ds1SqlSessionTemplate(@Qualifier("ds1SqlSessionFactory") SqlSessionFactory sqlSessionFactory) {
      return new SqlSessionTemplate(sqlSessionFactory);
    }

}
</pre></div>
<div class="jb51code"><pre class="brush:java;">package com.cbd.findig.data.process.config;

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.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;

/**
* Mybatis第二个ds2数据源配置
* 多数据源配置依赖数据源配置
* @seeDataSourceConfig
*/
@Configuration
@MapperScan(basePackages ="com.cbd.findig.data.process.mapperds2.**", sqlSessionTemplateRef= "ds2SqlSessionTemplate")
public class MybatisPlusConfig4ds2 {

    //ds2数据源
    @Bean("ds2SqlSessionFactory")
    public SqlSessionFactory ds2SqlSessionFactory(@Qualifier("ds2DataSource") DataSource dataSource) throws Exception {
      SqlSessionFactoryBean sqlSessionFactory = new SqlSessionFactoryBean();
      sqlSessionFactory.setDataSource(dataSource);
      sqlSessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver().
                getResources("classpath*:com/cbd/findig/data/process/mapperds2/**/*.xml"));
      return sqlSessionFactory.getObject();
    }

//事务支持
    @Bean(name = "ds2TransactionManager")
    public DataSourceTransactionManager ds2TransactionManager(@Qualifier("ds2DataSource") DataSource dataSource) {
      return new DataSourceTransactionManager(dataSource);
    }

    @Bean(name = "ds2SqlSessionTemplate")
    public SqlSessionTemplate ds2SqlSessionTemplate(@Qualifier("ds2SqlSessionFactory") SqlSessionFactory sqlSessionFactory) {
      return new SqlSessionTemplate(sqlSessionFactory);
    }

}
</pre></div>
<p class="maodian"></p><h2>总结</h2>
<p>以上为个人经验，希望能给大家一个参考，也希望大家多多支持琼殿技术社区。</p>
                           
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