springboot+vue 架构 （三） springboot 多数据源配置

springboot里配置多数据源

写2个数据源配置类，分别指到不同的DAO操作数据库文件

mysql的

@Configuration
@MapperScan(basePackages = {"com.heeexy.example.dao.mysql"},sqlSessionFactoryRef = "mysqlsqlSessionFactory")
public class MyBatisMysqlAConfig {

   @Autowired
    @Qualifier("mysqlDataSource")
    private DataSource dataSource;
   
   @Bean
    public SqlSessionFactory mysqlsqlSessionFactory() throws Exception{
        SqlSessionFactoryBean sqlSessionFactoryBean=new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setDataSource(dataSource);
 
        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        Resource[] resource=resolver.getResources("classpath:mapper/mysql/*.xml");//对应的mybatis的文件目录
        sqlSessionFactoryBean.setMapperLocations(resource);
 
        return sqlSessionFactoryBean.getObject();
    }
   
   @Bean
    public SqlSessionTemplate mysqlsqlSession() throws Exception{
        SqlSessionTemplate sqlSessionTemplate=new SqlSessionTemplate(mysqlsqlSessionFactory());
 
        return sqlSessionTemplate;
    }
}

sqlService的类

@Configuration
@MapperScan(basePackages = {"com.heeexy.example.dao.paiban"},sqlSessionFactoryRef = "paibansqlSessionFactory")
public class MyBatisPaibanAConfig {

   @Autowired
    @Qualifier("paibanDataSource")
    private DataSource dataSource;
   
   @Bean
    public SqlSessionFactory paibansqlSessionFactory() throws Exception{
        SqlSessionFactoryBean sqlSessionFactoryBean=new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setDataSource(dataSource);
 
        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        Resource[] resource=resolver.getResources("classpath:mapper/paiban/*.xml");//对应的mybatis的文件目录
        sqlSessionFactoryBean.setMapperLocations(resource);
 
        return sqlSessionFactoryBean.getObject();
    }
   
   @Bean
    public SqlSessionTemplate paibansqlSession() throws Exception{
        SqlSessionTemplate sqlSessionTemplate=new SqlSessionTemplate(paibansqlSessionFactory());
 
        return sqlSessionTemplate;
    }
}

增加一个DataSourceConfig类

@Configuration
public class DataSourceConfig {
   
   
   @Primary
    @Bean(name="mysqlDataSource")
    @ConfigurationProperties(prefix = "spring.datasource.mysql")
    public DataSource readDataSource(){
        return DataSourceBuilder.create().build();
    }
   

    @Bean(name="paibanDataSource")
    @ConfigurationProperties(prefix = "spring.datasource.sqlservice")
    public DataSource paibanDataSource(){
        return DataSourceBuilder.create().build();
    }

}

配置文件配置不同数据源的配置

在操作DAO类的时候，会根据配置获取对应的dataSource，

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这样就可以操作不同的数据库了