hibernate char类型setter的异常情况

使用hibernate，出错如下：

[DEBUG] 2009-03-04 09:31:32 [http-8098-1] org.hibernate.jdbc.AbstractBatcher.log(AbstractBatcher.java:393) select this_.ASSET_ID as ASSET1_8_0_, this_.description as descript2_8_0_, this_.status as status8_0_, this_.ASSET_TYPE as ASSET4_8_0_, this_.ASSET_NAME as ASSET5_8_0_, this_.STORE_TYPE as STORE6_8_0_, this_.PROVIDER_NO as PROVIDER7_8_0_, this_.ASSET_CODING as ASSET8_8_0_, this_.ASTC_ATTRIBUTE_ID as ASTC9_8_0_, this_.ASTC_ATTRIBUTE_NAME as ASTC10_8_0_, this_.PRODUCT_TYPE as PRODUCT11_8_0_, this_.LANGUAGE_TYPE as LANGUAGE12_8_0_, this_.singer as singer8_0_, this_.IS_ENCRYPTION as IS14_8_0_, this_.ENCRYPTION_METHOD as ENCRYPTION15_8_0_, this_.PLAY_LENGTH as PLAY16_8_0_ from N_ASSET this_ [DEBUG] 2009-03-04 09:31:32 [http-8098-1] org.hibernate.jdbc.AbstractBatcher.log(AbstractBatcher.java:393) select this_.ASSET_ID as ASSET1_8_0_, this_.description as descript2_8_0_, this_.status as status8_0_, this_.ASSET_TYPE as ASSET4_8_0_, this_.ASSET_NAME as ASSET5_8_0_, this_.STORE_TYPE as STORE6_8_0_, this_.PROVIDER_NO as PROVIDER7_8_0_, this_.ASSET_CODING as ASSET8_8_0_, this_.ASTC_ATTRIBUTE_ID as ASTC9_8_0_, this_.ASTC_ATTRIBUTE_NAME as ASTC10_8_0_, this_.PRODUCT_TYPE as PRODUCT11_8_0_, this_.LANGUAGE_TYPE as LANGUAGE12_8_0_, this_.singer as singer8_0_, this_.IS_ENCRYPTION as IS14_8_0_, this_.ENCRYPTION_METHOD as ENCRYPTION15_8_0_, this_.PLAY_LENGTH as PLAY16_8_0_ from N_ASSET this_ [DEBUG] 2009-03-04 09:31:32 [http-8098-1] org.hibernate.jdbc.AbstractBatcher.log(AbstractBatcher.java:393) select this_.ASSET_ID as ASSET1_8_0_, this_.description as descript2_8_0_, this_.status as status8_0_, this_.ASSET_TYPE as ASSET4_8_0_, this_.ASSET_NAME as ASSET5_8_0_, this_.STORE_TYPE as STORE6_8_0_, this_.PROVIDER_NO as PROVIDER7_8_0_, this_.ASSET_CODING as ASSET8_8_0_, this_.ASTC_ATTRIBUTE_ID as ASTC9_8_0_, this_.ASTC_ATTRIBUTE_NAME as ASTC10_8_0_, this_.PRODUCT_TYPE as PRODUCT11_8_0_, this_.LANGUAGE_TYPE as LANGUAGE12_8_0_, this_.singer as singer8_0_, this_.IS_ENCRYPTION as IS14_8_0_, this_.ENCRYPTION_METHOD as ENCRYPTION15_8_0_, this_.PLAY_LENGTH as PLAY16_8_0_ from N_ASSET this_ Hibernate: select this_.ASSET_ID as ASSET1_8_0_, this_.description as descript2_8_0_, this_.status as status8_0_, this_.ASSET_TYPE as ASSET4_8_0_, this_.ASSET_NAME as ASSET5_8_0_, this_.STORE_TYPE as STORE6_8_0_, this_.PROVIDER_NO as PROVIDER7_8_0_, this_.ASSET_CODING as ASSET8_8_0_, this_.ASTC_ATTRIBUTE_ID as ASTC9_8_0_, this_.ASTC_ATTRIBUTE_NAME as ASTC10_8_0_, this_.PRODUCT_TYPE as PRODUCT11_8_0_, this_.LANGUAGE_TYPE as LANGUAGE12_8_0_, this_.singer as singer8_0_, this_.IS_ENCRYPTION as IS14_8_0_, this_.ENCRYPTION_METHOD as ENCRYPTION15_8_0_, this_.PLAY_LENGTH as PLAY16_8_0_ from N_ASSET this_ [WARN ] 2009-03-04 09:31:32 [http-8098-1] org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:528) Unhandled Exception thrown: class org.springframework.orm.hibernate3.HibernateSystemException 2009-3-4 9:31:32 org.apache.catalina.core.StandardWrapperValve invoke 严重: Servlet.service() for servlet action 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:42) at org.hibernate.tuple.entity.AbstractEntityTuplizer.setPropertyValues(AbstractEntityTuplizer.java:337) at org.hibernate.tuple.entity.PojoEntityTuplizer.setPropertyValues(PojoEntityTuplizer.java:200) at org.hibernate.persister.entity.AbstractEntityPersister.setPropertyValues(AbstractEntityPersister.java:3499) at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:129) at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:842) at org.hibernate.loader.Loader.doQuery(Loader.java:717) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224) at org.hibernate.loader.Loader.doList(Loader.java:2144) at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2028) at org.hibernate.loader.Loader.list(Loader.java:2023) at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:95) at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1569) at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:283) at org.springframework.orm.hibernate3.HibernateTemplate$5.doInHibernate(HibernateTemplate.java:539) at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:372) at org.springframework.orm.hibernate3.HibernateTemplate.loadAll(HibernateTemplate.java:535) at com.dtv.cdp.play.dao.AssetDAO.getAllAssets(AssetDAO.java:25) at com.dtv.cdp.play.service.AssetManager.getAllAssets(AssetManager.java:26) at com.dtv.cdp.play.service.AssetManager$$FastClassByCGLIB$$d6e3179c.invoke() at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149) at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:695) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:139) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:161) at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:630) at com.dtv.cdp.play.service.AssetManager$$EnhancerByCGLIB$$f8f384dc.getAllAssets() at com.dtv.cdp.play.action.AssetAction.list(AssetAction.java:45) at com.dtv.cdp.core.action.BaseAction.unspecified(BaseAction.java:111) at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:249) at com.dtv.cdp.core.action.BaseAction.dispatchMethod(BaseAction.java:102) at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187) at com.dtv.cdp.core.action.BaseAction.execute(BaseAction.java:91) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619) 

分析、处理：：
对于我的bean类，其属性类型含integer、string、char类型，用最笨的方法逐个删除检查，前两个都没问题，暂停；
再看bean类，含两个类型为char的属性，会不会是他们出了问题？（在前面的开发中，有过设置为char类型、并且存取都正常无误的，就没往这上面想）
删除两属性后，ok，找到问题所在。可是其他的bean怎么没问题呢？在于此bean对应的表数据是人为造就，char类型的字段有些没有设值，会不会和这有关呢？
Update所有char字段有值，通过。
Ft，这个东西搞了我一个小时。

//javaeye和Google关系真是好啊，几乎以最快的速度收录了javaeye所有及最新的内容，我也奉献一点点，希望能对遇到同样问题的朋友有些许帮助。