在实现RowMapper的类中实现Spring管理的bean注入

Question

我有一个类BusinessRowMapper，它实现了将PostGres JSONB对象转换为Java对象的RowMapper。

BusinessRowMapper implements RowMapper<PersonDetails>

它覆盖mapRow

   public class BusinessRowMapper implements RowMapper<PersonDetails> {

    private PersonUtility utils;

    public BusinessRowMapper(PersonUtility utils) {
        super();
        this.utils = utils;
    }


    public PersonDetails mapRow(final ResultSet rs, final int rowNum) throws SQLException {
        PersonDetails personDetail = utils.unMarshallAndConvertData(rs
                .getString(ConstantsV4.COLUMN_CUST_DTLS_JSON_DOC));
        return personDetail;
    }
}

现在，我如何在这个BusinessRowMapper Bean中进行PersonUtility Bean的Spring管理注入，而不是将实用程序Bean作为构造函数参数传递给BusinessRowMapper？

getNamedParameterJdbcTemplate().query(
                        ConstantsV4.RETRIEVE_PERSON_DETAIL_QUERY, params,
                        new BusinessRowMapper(utility));

Answer 1

您可以将PersonUtility类定义为Springbean，在类上添加组件。

然后您可以在BusinessRowMapper中自动装配字段

@Component 
    public class BusinessRowMapper implements RowMapper<PersonDetails> { 

    @Autowired 
    private PersonUtility utils; 


    ... 


    }