Springboot整合mybatis配置下划线转驼峰

1、通过application.properties配置文件

mybatis.configuration.mapUnderscoreToCamelCase=true
mybatis.configuration.map-underscore-to-camel-case=true
#以上两种方式根据自己IDE版本选择其中一种进行配置即可

2、通过@configuration注解配置的方式

@Bean(name = "sqlSessionFactory")
public SqlSessionFactory sqlSessionFactoryBean() throws IOException {
    SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
    bean.setDataSource(dataSource);
    PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
    bean.setMapperLocations(resolver.getResources("classpath:/mapper//.xml"));
    try {
        //开启驼峰命名转换
        bean.getObject().getConfiguration().setMapUnderscoreToCamelCase(true);
        return bean.getObject();
    } catch (Exception e) {
        e.printStackTrace();
        throw new RuntimeException(e);
    }
}

以上两种方式均可实现下划线转驼峰的功能，具体怎么选择看个人喜好！