java.lang.IllegalArgumentException: Positional parameter does not exist: 1 in query解决
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环境
Eclipse Indigo + Hibernate3.2 + Oracle 11gR2 + SQLPlus
问题
运行Hibernate程序,报如下异常
java.lang.IllegalArgumentException: Positional parameter does not exist: 1 in query: select id from contactor where name = ?at org.hibernate.impl.AbstractQueryImpl.setParameter(AbstractQueryImpl.java:359)at org.hibernate.impl.AbstractQueryImpl.setInteger(AbstractQueryImpl.java:508)at com.addbook.dao.impl.ContactorDaoImpl.updateRecordByName(ContactorDaoImpl.java:75)at com.addbook.service.impl.ContactorServiceImpl.updateRecordByName(ContactorServiceImpl.java:50)at com.addbook.dao.impl.TestContactor.testUpdateRecordByName(TestContactor.java:67)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.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)at org.junit.runners.ParentRunner.run(ParentRunner.java:236)at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)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)
解决
1. 一个语句里有多个赋值时采用引用占位符。
2. 要更新的id是从以前的名字里查询得到,不建议通过名字查询id,再通过id update,而是直接在update语句里使用子查询。
//改成子查询public int updateRecordByName(String originName, String newName){sql = "update contactor set name=:n where id=(select id from contactor where name=:na)";session = ConnUtil.getSession();session.beginTransaction();query = session.createSQLQuery(sql);query.setString("n", newName);query.setString("na", originName);int num = query.executeUpdate();session.getTransaction().commit();session.close();return num;}
参考资料
http://txlaijava.iteye.com/blog/1032745
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