<select id="getFselection" parameterType="java.lang.String" resultType="com.college.collegesystem.pojo.DO.CollegeScoreFselectionSheet"> SELECT username, provinceId, referenceYear, batch, subject, score FROM college_score_fselection_sheet where username = #{username} and province_id = #{provinceId} and reference_year = #{referenceYear} and batch = #{batch} and subject = #{subject} and score = #{score} </select>怎样改正确

根据错误信息，参数`provinceId`的类型为`String`，但是在设置参数时出现了类型转换异常，尝试将一个`Integer`类型的值强制转换为`String`类型。因此，建议将该SQL语句中的`provinceId`参数的类型改为`Integer`，并且在调用该SQL语句时，传入的参数也应该是`Integer`类型的。

修改后的SQL语句如下所示：

<select id="getFselection" parameterType="com.college.collegesystem.pojo.DO.CollegeScoreFselectionSheet" resultType="com.college.collegesystem.pojo.DO.CollegeScoreFselectionSheet">
    SELECT username, provinceId, referenceYear, batch, subject, score 
    FROM college_score_fselection_sheet 
    WHERE username = #{username} 
        AND provinceId = #{provinceId} 
        AND referenceYear = #{referenceYear} 
        AND batch = #{batch} 
        AND subject = #{subject} 
        AND score = #{score} 
</select>

同时，在调用该SQL语句时，传入的参数`provinceId`应该是`Integer`类型的。