我在 JPA native 查询中传递 LocalDate。但是它是把它当做字符串来执行。
当我在 MySql Workbench 中和使用 native 查询从 Java 中执行相同的查询时,我得到了不同的结果。
在 MySQL Workbench 中:
select sum(expense_amount) from budgetreferee.br_expense where household_id=1 and next_due_date between 2018-08-01 and 2019-07-31 and category_id IN(41,51,58,70,74,83,94,2,20,10,9,22,28) OR is_bill=TRUE and expense_id IS NOT NULL;
结果是:58171.00
使用原生查询:
@Query(value = "select sum(expense_amount) from br_expense where household_id=:householdId and next_due_date between str_to_date(:startDate,'%Y-%m-%d') and str_to_date(:endDate,'%Y-%m-%d') and category_id IN(41,51,58,70,74,83,94,2,20,10,9,22,28) OR is_bill=TRUE and expense_id IS NOT NULL;",nativeQuery = true) BigDecimal getTotalExpenseAmount(@Param("householdId") Long householdId, @Param("startDate") LocalDate startDate, @Param("endDate") LocalDate endDate)
这导致了这个查询:
select sum(expense_amount) from budgetreferee.br_expense where household_id=1 and next_due_date between str_to_date ('2018-08-01','%Y- %m-%d') and str_to_date('2019-07-31','%Y-%m-%d') and category_id IN(41,51,58,70,74,83,94,2,20,10,9,22,28) OR is_bill=TRUE and expense_id IS NOT NULL;
结果为109871.00
我该如何解决这个差异? 当我从 Java 执行它时,我希望输出 58171.00。
最佳答案
JPA 2.1 在 Java 8 之前发布,这就是默认不支持 LocalDate 的原因。您可以使用 Converter
为您完成这项工作。
import java.sql.Date;
import java.time.LocalDate;
import javax.persistence.AttributeConverter;
import javax.persistence.Converter;
@Converter(autoApply = true)
public class LocalDateAttributeConverter implements AttributeConverter<LocalDate, Date> {
@Override
public Date convertToDatabaseColumn(LocalDate localDate) {
return (localDate == null ? null : Date.valueOf(localDate));
}
@Override
public LocalDate convertToEntityAttribute(Date sqlDate) {
return (sqlDate == null ? null : sqlDate.toLocalDate());
}
关于java - MySQL LocalDate 在 JPA Native Query 中作为 String 传递,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51835972/