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[英]Cannot mix JPA positional parameters and native Hibernate positional/ordinal parameters
[英]Hibernate native query with positional parameters
我寫了本機sql查詢而不是使用hql並面臨roblem
位置超出聲明的序數參數的數量。 請記住,序數參數是基於1的! 職位:1
<sql-query name="GET_ARRAY_MAX_POINT_QUESTION">
<![CDATA[
select TEST.TEST_ID as testId, TEST.VERSION_ID as versionId,
PASSED_TEST.RESULT as userResult,
PASSED_TEST.TIME_COMPLITED as timeComplited,
sum(COMPLEXITY) as maxTestResult from QUESTION
JOIN TEST_QUESTION ON QUESTION.QUESTION_ID = TEST_QUESTION.QUESTION_ID
JOIN TEST ON TEST.TEST_ID=TEST_QUESTION.TEST_ID
JOIN PASSED_TEST ON TEST.TEST_ID=PASSED_TEST.TEST_ID
AND TEST.VERSION_ID=PASSED_TEST.VERSION_ID
WHERE TEST.SUBJECT_ID = ?
AND PASSED_TEST.USER_ID = ?
GROUP BY PASSED_TEST.TEST_EVENT_ID
]]>
</sql-query>
和DAO
return session
.createSQLQuery(GET_ARRAY_MAX_POINT_QUESTION_NAME_QUERY)
.addScalar(TEST_ID_RESULT_PARAM, StandardBasicTypes.LONG)
.addScalar(VERSION_ID_RESULT_PARAM, StandardBasicTypes.LONG)
.addScalar(USER_RESULT_PARAM, StandardBasicTypes.DOUBLE)
.addScalar(MAX_TEST_RESULT_PARAM, StandardBasicTypes.DOUBLE)
.addScalar(TIME_COMPLITED_RESULT_PARAM, StandardBasicTypes.DATE)
.setParameter(0, subjectId)
.setParameter(1, userId)
.setResultTransformer(
Transformers.aliasToBean(PassedTestStatistic.class))
.list();
我讀了//JPA specification. Only positional parameter binding may be portably used for native queries.
//JPA specification. Only positional parameter binding may be portably used for native queries.
那個hibernate使用0作為第一個索引。
堆棧跟蹤
Caused by: org.hibernate.QueryParameterException: Position beyond number of declared ordinal parameters. Remember that ordinal parameters are 1-based! Position: 1
at org.hibernate.engine.query.spi.ParameterMetadata.getOrdinalParameterDescriptor(ParameterMetadata.java:80)
at org.hibernate.engine.query.spi.ParameterMetadata.getOrdinalParameterExpectedType(ParameterMetadata.java:86)
at org.hibernate.internal.AbstractQueryImpl.determineType(AbstractQueryImpl.java:444)
at org.hibernate.internal.AbstractQueryImpl.setParameter(AbstractQueryImpl.java:416)
at by.bsuir.testapp.database.hibernate.PassedTestHibernateDAO.getDataForPassedTestStatisticGraph(PassedTestHibernateDAO.java:73)
at by.bsuir.testapp.service.PassedTestServiceImpl.getDataForPassedTestStatisticGraph(PassedTestServiceImpl.java:58)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:319)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at $Proxy28.getDataForPassedTestStatisticGraph(Unknown Source)
at by.bsuir.testapp.controller.StatisticPassedTest.createLinearModel(StatisticPassedTest.java:61)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.apache.el.parser.AstValue.invoke(AstValue.java:262)
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
// UPDATE
有趣的是,當我設置查詢數值時
WHERE TEST.SUBJECT_ID = 1
AND PASSED_TEST.USER_ID = 1
我明白了
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'GET_ARRAY_MAX_POINT_QUESTION' at line 1
但在MySQL中我得到了成功的結果。
我怎么決定這個問題?
你打電話
session.createSQLQuery
但我相信你需要打電話
session.getNamedQuery
使用命名查詢時。
請檢查
.setParameter(1, subjectId)
.setParameter(2, userId)
因為異常跟蹤表示序數參數是基於1的!
您可以嘗試使用命名參數而不是提供位置參數。
例如。
session
.createSQLQuery("update table1 set variable = variable + 1 where id = :id")
.setParameter("id", someId)
.executeUpdate();
本機SQL查詢支持位置和命名參數。
請閱讀以下命名的SQL查詢: http : //docs.jboss.org/hibernate/orm/3.3/reference/en/html/querysql.html#d0e13930
看着你的來源
createSQLQuery(GET_ARRAY_MAX_POINT_QUESTION_NAME_QUERY)
你必須有一個變量指向一個包含本機查詢的實際名稱的字符串,如下所示:
GET_ARRAY_MAX_POINT_QUESTION_NAME_QUERY = "GET_ARRAY_MAX_POINT_QUESTION"
你在這里得到的錯誤:
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'GET_ARRAY_MAX_POINT_QUESTION' at line 1
表示createSqlQuery沒有按名稱查找本機查詢,而是嘗試將名稱“GET_ARRAY_MAX_POINT_QUESTION”作為原始SQL執行,就像您輸入s.createSqlQuery(“Select * from ...”)一樣在這里的文檔中,您將看到為了查找命名查詢,即使是本地查詢,您仍然必須使用getNamedQuery。
對於那些用Google搜索錯誤消息的人:當我沒有任何感興趣的類的映射時出現此錯誤。 映射解決了問題。
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