夢(mèng)開(kāi)始的地方----

hibernate修改出錯(cuò)，

在訂單中ORDERS，把A部門為B部門，出現(xiàn)
identifier of an instance of com.kink.model.Department altered from 2 to 4; nested exception is org.hibernate.HibernateException: identifier of an instance of com.kink.model.Department altered from 2 to 4 ,是不是哪個(gè)地方?jīng)]設(shè)置好,2是A部門原來(lái)的值，4是要修改成的值。

注:Orders表的字段為 id(PK),dept_id(FK),remark,
Order_item 表的字段為id,order_id(FK),item_no,qty,price,
Department 表的字段為id(PK),code,name,
出現(xiàn)以上操作錯(cuò)誤是在對(duì)orders進(jìn)行UPDATE時(shí)出現(xiàn)的，步驟是取出Orders 然后把訂單中的A部門修改成B部門，就出現(xiàn)錯(cuò)誤，而我卻沒(méi)有對(duì)Department表進(jìn)行操作，不知道是怎么回事，請(qǐng)問(wèn)有人知道原因嗎

posted @ 2006-08-25 13:41 夢(mèng)延續(xù)的港灣----依然是藍(lán) 閱讀(1315) | 評(píng)論 (2) | 編輯 收藏

征集hibernate錯(cuò)誤答案

Q：identifier of an instance of com.lanhan.poos.vo.Ck was altered from 1 to 2; nested exception is org.hibernate.HibernateException: identifier of an instance of com.lanhan.poos.vo.Ck was altered from 1 to 2
Stack Trace is :

org.springframework.orm.hibernate3.HibernateSystemException: identifier of an instance of com.lanhan.poos.vo.Ck was altered from 1 to 2; nested exception is org.hibernate.HibernateException: identifier of an instance of com.lanhan.poos.vo.Ck was altered from 1 to 2
Caused by: org.hibernate.HibernateException: identifier of an instance of com.lanhan.poos.vo.Ck was altered from 1 to 2
?at org.hibernate.event.def.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:51)
?at org.hibernate.event.def.DefaultFlushEntityEventListener.getValues(DefaultFlushEntityEventListener.java:150)
?at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:106)
?at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:195)
?at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)
?at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
?at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1009)
?at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:356)
?at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
?at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:580)
?at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:539)
?at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:509)
?at org.springframework.transaction.interceptor.TransactionAspectSupport.doCommitTransactionAfterReturning(TransactionAspectSupport.java:275)
?at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
?at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
?at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:647)
?at com.lh.pos.dao.impl.BorrowDAOImpl$$EnhancerByCGLIB$$61171362.updateBorrow()
?at com.lh.pos.web.ck.BorrowController.update(BorrowController.java:152)
?at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
?at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
?at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
?at java.lang.reflect.Method.invoke(Unknown Source)
?at org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:216)
?at org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:162)
?at org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:114)
?at com.lh.pos.web.ck.BorrowController.handleRequest(BorrowController.java:67)
?at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:45)
?at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:798)
?at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:728)
?at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:396)
?at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:360)
?at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
?at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
?at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
?at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
?at org.extremecomponents.table.filter.AbstractExportFilter.doFilter(AbstractExportFilter.java:49)
?at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
?at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
?at filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:151)
?at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
?at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
?at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
?at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
?at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
?at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
?at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
?at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
?at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:833)
?at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:639)
?at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1285)
?at java.lang.Thread.run(Unknown Source)

更新記錄時(shí)出錯(cuò)以上錯(cuò)誤，有知道問(wèn)題的答案嗎，很想搞清楚問(wèn)題出在哪里

posted @ 2006-08-19 22:12 夢(mèng)延續(xù)的港灣----依然是藍(lán) 閱讀(2045) | 評(píng)論 (6) | 編輯 收藏

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posted @ 2006-06-04 22:29 夢(mèng)延續(xù)的港灣----依然是藍(lán) 閱讀(1230) | 評(píng)論 (1) | 編輯 收藏

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posted @ 2005-11-21 14:29 夢(mèng)延續(xù)的港灣----依然是藍(lán) 閱讀(2496) | 評(píng)論 (4) | 編輯 收藏

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posted @ 2005-11-14 13:19 夢(mèng)延續(xù)的港灣----依然是藍(lán) 閱讀(2108) | 評(píng)論 (0) | 編輯 收藏

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posted @ 2005-11-11 12:07 夢(mèng)延續(xù)的港灣----依然是藍(lán) 閱讀(657) | 評(píng)論 (1) | 編輯 收藏

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2、mysql 5.0安裝時(shí)如果選擇典型安裝是不是改變mysql 的安裝目錄的，不過(guò)有個(gè)辦法可以解決，先選擇自定義安裝，然后在下一部改變安裝目錄之后，再回到上一步選擇典型安裝就可以了。

3、其他功能暫時(shí)還沒(méi)有時(shí)間試，不知道效果怎么樣了。

4、mysql5.0下載地址http://dev.mysql.com/downloads/mysql/5.0.html

5、再續(xù)吧......

posted @ 2005-10-31 12:47 夢(mèng)延續(xù)的港灣----依然是藍(lán) 閱讀(458) | 評(píng)論 (0) | 編輯 收藏

當(dāng)field為空時(shí)如何不出現(xiàn)NULL，同時(shí)可以看到BORDER線?

忘了JASPERREPORT 里面怎么設(shè)置，當(dāng)field為空時(shí)不出現(xiàn)NULL，設(shè)置了BLANK WHEN NULL之后整個(gè)field都不出了，但連畫在field中的border線也不出現(xiàn)。

posted @ 2005-09-21 10:40 夢(mèng)延續(xù)的港灣----依然是藍(lán) 閱讀(799) | 評(píng)論 (1) | 編輯 收藏

ec種種

1、文檔不全，連個(gè)table的總合計(jì)都沒(méi)寫出來(lái);
2、格式化數(shù)字也寫得不明不白，如果不是看源碼還以為是EC有BUG;
3、不支持由兩個(gè)BEAN組成的COLLECTION;
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......
最后解決方法要用VIEW功能來(lái)解決，但代價(jià)太高，就是重寫程序。所以如果是升級(jí)項(xiàng)目的話就要考慮下了。

posted @ 2005-09-13 12:56 夢(mèng)延續(xù)的港灣----依然是藍(lán) 閱讀(489) | 評(píng)論 (1) | 編輯 收藏

jasperreport 能否根據(jù)報(bào)表數(shù)據(jù)長(zhǎng)度的多少而自定義報(bào)表的長(zhǎng)度?

 不知道jasperreport 能否根據(jù)報(bào)表數(shù)據(jù)長(zhǎng)度的多少而動(dòng)態(tài)自定義報(bào)表的長(zhǎng)度,比如記錄只一條時(shí)，報(bào)表的長(zhǎng)度就設(shè)短一點(diǎn)，動(dòng)態(tài)改變報(bào)表的長(zhǎng)度。

posted @ 2005-09-08 12:59 夢(mèng)延續(xù)的港灣----依然是藍(lán) 閱讀(2029) | 評(píng)論 (7) | 編輯 收藏