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SpringBoot中的雙數(shù)據(jù)源配置過程

更新時間：2026年01月10日 15:23:36 作者：DXIANGH

文章介紹了如何配置Oracle和PostgreSQL數(shù)據(jù)源,并使用JdbcTemplate進(jìn)行數(shù)據(jù)庫操作,重點包括數(shù)據(jù)源配置、JdbcTemplate配置以及不同數(shù)據(jù)源的包路徑設(shè)置

1.引入使用的數(shù)據(jù)源類型(mysql oracle sqlserver等)依賴

本文配置為oracel和postgresql

        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc6</artifactId>
            <version>11.2.0.3</version>
        </dependency>
         <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
        </dependency>

2.yml中配置數(shù)據(jù)源

3.數(shù)據(jù)源的配合

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;

/**
 * 多數(shù)據(jù)源配置
 */
@Configuration
public class DataSourceConfig {

    //主數(shù)據(jù)源配置 ds1數(shù)據(jù)源
    @Primary
    @Bean(name = "ds1DataSourceProperties")
    @ConfigurationProperties(prefix = "spring.datasource.ds1")
    public DataSourceProperties ds1DataSourceProperties() {
        return new DataSourceProperties();
    }

    //主數(shù)據(jù)源 ds1數(shù)據(jù)源
    @Primary
    @Bean(name = "ds1DataSource")
    public DataSource ds1DataSource(@Qualifier("ds1DataSourceProperties") DataSourceProperties dataSourceProperties) {
        return dataSourceProperties.initializeDataSourceBuilder().build();
    }

    //第二個ds2數(shù)據(jù)源配置
    @Bean(name = "ds2DataSourceProperties")
    @ConfigurationProperties(prefix = "spring.datasource.ds2")
    public DataSourceProperties ds2DataSourceProperties() {
        return new DataSourceProperties();
    }

    //第二個ds2數(shù)據(jù)源
    @Bean("ds2DataSource")
    public DataSource ds2DataSource(@Qualifier("ds2DataSourceProperties") DataSourceProperties dataSourceProperties) {
        return dataSourceProperties.initializeDataSourceBuilder().build();
    }

}

4.JdbcTemplate的配置

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多數(shù)據(jù)源配置
 * 依賴于數(shù)據(jù)源配置
 *
 * @see DataSourceConfig
 */
@Configuration
public class JdbcTemplateDataSourceConfig {

    //JdbcTemplate主數(shù)據(jù)源ds1數(shù)據(jù)源
    @Primary
    @Bean(name = "ds1JdbcTemplate")
    public JdbcTemplate ds1JdbcTemplate(@Qualifier("ds1DataSource") DataSource dataSource) {
        return new JdbcTemplate(dataSource);
    }

    //JdbcTemplate第二個ds2數(shù)據(jù)源
    @Bean(name = "ds2JdbcTemplate")
    public JdbcTemplate ds2JdbcTemplate(@Qualifier("ds2DataSource") DataSource dataSource) {
        return new JdbcTemplate(dataSource);
    }
}

5.分別配置兩個數(shù)據(jù)源的使用的包路徑

（注意換為自己的包路徑）

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主數(shù)據(jù)源ds1配置
 * 多數(shù)據(jù)源配置依賴數(shù)據(jù)源配置
 * @see  DataSourceConfig
 */
@Configuration
@MapperScan(basePackages ="com.cbd.findig.data.process.mapper.**", sqlSessionTemplateRef  = "ds1SqlSessionTemplate")
public class MybatisPlusConfig4ds1 {

    //主數(shù)據(jù)源 ds1數(shù)據(jù)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);
    }

}

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  第二個ds2數(shù)據(jù)源配置
 * 多數(shù)據(jù)源配置依賴數(shù)據(jù)源配置
 * @see  DataSourceConfig
 */
@Configuration
@MapperScan(basePackages ="com.cbd.findig.data.process.mapperds2.**", sqlSessionTemplateRef  = "ds2SqlSessionTemplate")
public class MybatisPlusConfig4ds2 {

    //ds2數(shù)據(jù)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();
    }

//事務(wù)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);
    }

}