Question

我有一个存储过程，它将游标作为参数。我在hibernate映射中定义了一个namedquery来调用存储过程... 我需要使用hibernateTemplate（spring，hibernate）从DAO调用它

我就是这样做的。

Query q =  (Query) hibernateTemplate.findByNamedQuery("getFromGTT", OracleTypes.CURSOR);

但它给了我一些例外......

org.springframework.dao.InvalidDataAccessResourceUsageException: could not execute query; nested exception is org.hibernate.exception.SQLGrammarException: could not execute query
Caused by: org.hibernate.exception.SQLGrammarException: could not execute query
    at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67)
    at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
    at org.hibernate.loader.Loader.doList(Loader.java:2214)
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2095)
    at org.hibernate.loader.Loader.list(Loader.java:2090)
    at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:289)
    at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1695)
    at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:142)
    at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:150)
    at org.springframework.orm.hibernate3.HibernateTemplate$32.doInHibernate(HibernateTemplate.java:916)
    at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:372)
    at org.springframework.orm.hibernate3.HibernateTemplate.findByNamedQuery(HibernateTemplate.java:907)
    at dao.GTTDaoImpl$1.doInHibernate(GTTDaoImpl.java:27)
    at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:372)
    at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:338)
    at dao.GTTDaoImpl.getDataFromGTT(GTTDaoImpl.java:23)
    at test.TestOracleProcedures.test(TestOracleProcedures.java:28)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.junit.internal.runners.TestMethodRunner.executeMethodBody(TestMethodRunner.java:99)
    at org.junit.internal.runners.TestMethodRunner.runUnprotected(TestMethodRunner.java:81)
    at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
    at org.junit.internal.runners.TestMethodRunner.runMethod(TestMethodRunner.java:75)
    at org.junit.internal.runners.TestMethodRunner.run(TestMethodRunner.java:45)
    at org.junit.internal.runners.TestClassMethodsRunner.invokeTestMethod(TestClassMethodsRunner.java:71)
    at org.junit.internal.runners.TestClassMethodsRunner.run(TestClassMethodsRunner.java:35)
    at org.junit.internal.runners.TestClassRunner$1.runUnprotected(TestClassRunner.java:42)
    at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
    at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.sql.SQLException: ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'GET_FROM_GTT'

需要一个解决方案.. 感谢

Answer 1

你应该为人们发布你的程序规范以便更好地帮助你，但是既然你提到传入游标，你应该知道有restrictions on calling stored procedures from Hibernate：

对于Oracle，以下规则适用：

函数必须返回结果集。 a的第一个参数   procedure必须是返回结果集的OUT。这是通过   在Oracle 9或10中使用SYS_REFCURSOR类型。在Oracle中，您需要   定义REF CURSOR类型。请参阅Oracle文献   信息。

如果您无法满足这些要求，您仍然可以通过调用本机JDBC调用来调用该过程。

此外，OracleTypes.CURSOR是JDBC类型，它不是绑定变量。如果您的过程需要执行值，则需要将该实际值传递给findByNamedQuery。

使用hibernate查询对象将Cursor作为参数传递给存储过程

1 个答案: