首页 > 代码库 > 实体类与数据库字段的映射常见错误(at org.hibernate.property.BasicPropertyAccessor$BasicSetter.set)
实体类与数据库字段的映射常见错误(at org.hibernate.property.BasicPropertyAccessor$BasicSetter.set)
严重: Servlet.service() for servlet springMVC threw exception java.lang.IllegalArgumentException 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.hibernate.property.BasicPropertyAccessor$BasicSetter.set(BasicPropertyAccessor.java:66) at org.hibernate.tuple.entity.AbstractEntityTuplizer.setPropertyValues(AbstractEntityTuplizer.java:583) at org.hibernate.tuple.entity.PojoEntityTuplizer.setPropertyValues(PojoEntityTuplizer.java:229) at org.hibernate.persister.entity.AbstractEntityPersister.setPropertyValues(AbstractEntityPersister.java:3822) at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:152) at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:982) at org.hibernate.loader.Loader.doQuery(Loader.java:857) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274) at org.hibernate.loader.Loader.doList(Loader.java:2533) at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276) at org.hibernate.loader.Loader.list(Loader.java:2271) at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:316) at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1842) at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:165) at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:157)
原因:数据库字段值为NULL,int 类型不能赋值为NULL,只能为0,但有些实际应用中,如学生分数,0表示0分,NULL,则表示暂无分数所以,要不设数据字段不为NULL,要不就是用Integer.
实体类与数据库字段的映射常见错误(at org.hibernate.property.BasicPropertyAccessor$BasicSetter.set)
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