export_dao
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(1)數字庫 表字段 與類的成員變量 不一緻
》》1:sql語句 使用
》》2:mybatis裡面使用 resultMapas
辦法 1:sql别名
<select id="findAll" resultType="company">
select
id,
name ,
expiration_date as expirationDate ,
address,
license_id as licenseId ,
representative ,
phone ,
company_size as companySize ,
industry ,
remarks ,
state,
balance ,
city
from ss_company
</select>
辦法2: resultMap标簽
<resultMap id="companyMap" type="company">
<id column="id" property="id"/>
<result column="expiration_date" property="expirationDate"/>
<result column="license_id" property="licenseId"/>
<result column="company_size" property="companySize"/>
</resultMap>
<select id="findAll" resultMap="companyMap">
select
*
from ss_company
</select>