Mybatis多数据源开启驼峰转换

mybatis多数据源开启驼峰转换

复制
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;
/**
 * @Author LiGuangLong
 * @Date 2022-02-28 16:22
 **/
@Configuration
@MapperScan(basePackages = "com.eagle.opd.management.dao", sqlSessionTemplateRef  = "businessSqlSessionTemplate")
public class DataSourceConfig {

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

    @Bean(name = "businessSqlSessionFactory")
    @Primary
    public SqlSessionFactory businessSqlSessionFactory(@Qualifier("businessDataSource") DataSource dataSource) throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource);
        bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/business/*.xml"));
        //开启驼峰命名
        org.apache.ibatis.session.Configuration configuration = new org.apache.ibatis.session.Configuration();
        configuration.setMapUnderscoreToCamelCase(true);
        bean.setConfiguration(configuration);

        return bean.getObject();
    }

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

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

在 businessSqlSessionFactory 中加入以下代码就可以了

复制//开启驼峰命名
org.apache.ibatis.session.Configuration configuration = new org.apache.ibatis.session.Configuration();
configuration.setMapUnderscoreToCamelCase(true);
sqlSessionFactoryBean.setConfiguration(configuration);