通过JPA运行查询时获取MissingTokenException

时间:2013-09-14 10:47:09

标签: java mysql jpa jpa-2.0 spring-data-jpa

我正在使用JPA运行以下查询并获得下面提到的异常:

JPA代码:

int count = em.createQuery(QueryCollections.getSoldProductUpdateQuery(billGuid).toString()).executeUpdate();

以下是查询:

Query:  
 UPDATE at_product currentproduct
            JOIN
        (SELECT 
            atbillfields.billeditemguid AS productguid,
                COUNT(*) AS number_of_people_bought,
                SUM(atbillfields.billeditemqty) AS soldquantity
        FROM
            jtbillingtest.at_salesbill atsalesbill
        JOIN jtbillingtest.at_billfields atbillfields ON atsalesbill.billbatchguid = atbillfields.billbatchguid
        WHERE
            atsalesbill.billguid = '41'
        GROUP BY atbillfields.billeditemguid) soldproductdetails ON soldproductdetails.productguid = currentproduct.productguid 
    SET 
        currentproduct.productQuantity = currentproduct.productQuantity - soldproductdetails.soldquantity

jpa引发的异常。

> Exception , line 1, column 34: syntax error at [JOIN]. Internal
> Exception: MissingTokenException(inserted [@-1,0:0='<missing
> SET>',<62>,1:34] at JOIN)     at
> org.eclipse.persistence.internal.jpa.EntityManagerImpl.createQuery(EntityManagerImpl.java:1477)
>   at myjavfxapp.dal.ProductDal.updateSoldProducts(ProductDal.java:46)
>   at
> myjavfxapp.controller.BillingController$6.handle(BillingController.java:421)
>   at

但是,如果我直接在MySQL服务器中运行此查询,它会正常运行。 如果我遗漏了任何东西,请指出。

1 个答案:

答案 0 :(得分:0)

JPQL和SQL不是同一种语言。您正在尝试使用executeQuery()执行SQL查询,该查询需要JPQL查询。

使用em.createNativeQuery()