springboot + mybatis 查询结果为null字段不显示

@Primary
@Bean(name = "sysSqlSessionFactory")
public SqlSessionFactory setSqlSessionFactory(@Qualifier("sysDataSource") DataSource dataSource) throws Exception {
    SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
    bean.setDataSource(dataSource);
　　//设置为true 为null字段也会查询出来
    bean.getObject().getConfiguration().setCallSettersOnNulls(true);
    org.apache.ibatis.session.Configuration configuration = new org.apache.ibatis.session.Configuration();
    configuration.setMapUnderscoreToCamelCase(true);
    bean.setConfiguration(configuration);
    bean.setMapperLocations(resolveMapperLocations());
    bean.setConfigurationProperties(resolveMapperProperties());
    return bean.getObject();
}