1．错误：object references an unsaved transient instance - save the transient instance before flushing:

com.xxxx.bean.java.Sysblog; nested exception is org.hibernate.TransientObjectException: object references an unsaved

transient instance - save the transient instance before flushing: com.xxx.bean.java.Sysblog

解决方法：没有可预期的实例，当然就要实例化对象咯

2．错误：Exceptionobject references an unsaved transient instance - save the transient instance before flushing:

src.persistent.Product......

解决方法：原因没有为某对象进行set设置， 如上边的这个就是某对象没有调用setProduct

3.错误：Illegal attempt to associate a collection with two open sessions......

解决方法：(hibernate的session提供了一级缓存，每个session，对同一个id进行两次load，不会发送两条sql给数据库，但是session关闭的

时候，一级缓存就失效了。

sysblogarticle.setAmount(new Long(sysblogcommentService.selcom(
sysblogarticle.getArticleid().toString()).size()));//通过文章id获取文章评论数
sysblogarticle.setSysblogcomments(null);//关键
sysblogarticleService.saveOrUpdate(sysblogarticle);//将文章中评论条数修改
参考：http://javaflasher.iteye.com/blog/forum/17913

4.错误：Hbm映射文件都生成好后，改数据库增加了默认值（如：将某个字段值设为1），结果在插入的时候，数据库那边没有反应。

解决方法: 在sql-type里面定义数据库默认值，那么SchemeExport的时候，DDL就会加上default。然后hbm定义为dynamic-insert="true"和

dynamic-update="true"
<hibernate-mapping>
<class name="com.tom.hibernate.EbayItem" table="EBAY_ITEM" schema="API_USER" dynamic-insert="true" dynamic-update="true">
.......
........
<property name="viewData" not-null="true" type="boolean"> 
<column name="viewdata" sql-type="number(1) default 0"/> 
</property>

</class>
</hibernate-mapping>

5.错误：
2008-2-2 9:45:13 org.hibernate.util.JDBCExceptionReporter logExceptions
严重: Unknown column 'tjsaleresu0_.isupdate' in 'field list'
2008-2-2 9:45:13 org.hibernate.event.def.DefaultLoadEventListener onLoad
信息: Error performing load command
org.hibernate.exception.SQLGrammarException: could not load an entity: [ookj.domain.TjSaleResult#293]

--数据库中没有“isupdate”字段

6.错误：
2008-2-2 9:51:42 org.hibernate.util.JDBCExceptionReporter logExceptions
警告: SQL Error: 1052, SQLState: 23000
2008-2-2 9:51:42 org.hibernate.util.JDBCExceptionReporter logExceptions
严重: Column 'df' in where clause is ambiguous

————find("select tsr from TjSaleResult tsr, TjItemResult tir where tsr=tir.saleResultId and tir=? and df<>1", new Object

[]{tir});
————语句中的df不能确定是哪个表的

7.错误
org.springframework.orm.hibernate3.HibernateQueryException: could not resolve property: trackDate of:

ookj.domain.TjReagentTrack [from ookj.domain.TjReagentTrack trt where trt.trackStage=? and trt.trackDate=? and trt.userId=?

and trt.df<>1]; nested exception is org.hibernate.QueryException: could not resolve property: trackDate of:

ookj.domain.TjReagentTrack [from ookj.domain.TjReagentTrack trt where trt.trackStage=? and trt.trackDate=? and trt.userId=?

and trt.df<>1]
Caused by: org.hibernate.QueryException: could not resolve property: trackDate of: ookj.domain.TjReagentTrack [from

ookj.domain.TjReagentTrack trt where trt.trackStage=? and trt.trackDate=? and trt.userId=? and trt.df<>1]

————问题是配置中：
private static String[][] properties={ 
{"getReagentTrackId","reagent_trackid","0"},
{"getReagentId","reagentid","1"},
{"getUserId","userid","1"},
{"getGuideBookId","guidebookid","1"},
{"getTrackTime","tracktime","0"}, //这里名称不对
{"trackStage","trackstage","0"},
{"getDf","df","0"}
————还有nd trt.trackDate=? 语句中的值有误。

8.错误
java.lang.ClassCastException: ookj.domain.OokjDateTime

————基本的 类型转换错误

9.错误
org.springframework.dao.InvalidDataAccessApiUsageException: object references an unsaved transient instance - save the

transient instance before flushing: ookj.domain.SmDept; nested exception is org.hibernate.TransientObjectException: object

references an unsaved transient instance - save the transient instance before flushing: ookj.domain.SmDept
Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient

instance before flushing: ookj.domain.SmDept

————new了一个新对象，在未保存之前将它保存进了一个新new的对象。

10.错误
信息: could not read column value from result set: activep19_59_; could not deserialize
Exception in thread "main" org.springframework.orm.hibernate3.HibernateSystemException: could not deserialize; nested

exception is org.hibernate.type.SerializationException: could not deserialize
Caused by: org.hibernate.type.SerializationException: could not deserialize

我用的数据库是mysql，在通过pojo类自动生成的类中，未为字段指定type，hibernate对自动为其指定，如果它所生成的type不能被反序列化

，就会抛出java.util.ServilizableException

比如我产生异常的原因是我建立了一个string[]类型的字段，但在对应的.hbm.xml文件中我没有显式定义它的类型，hibernate自动为其指定了

类型，该类型不能被反序列化。

11.错误
严重: line 1:143: expecting IDENT, found '.'
2008-2-3 0:41:01 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet tijianServlet threw exception
org.springframework.orm.hibernate3.HibernateQueryException: expecting IDENT, found '.' near line 1, column 143 [select

t.saleItemId.medicalGroup from ookj.domain.TjSaleResult t where t.guideBookId=? and t.saleItemId.medicalGroup.block=? and

t.saleItemId..medicalGroup.df<>1];
nested exception is org.hibernate.hql.ast.QuerySyntaxException:
expecting IDENT, found '.'

near line 1, column 143 [select t.saleItemId.medicalGroup from ookj.domain.TjSaleResult t where t.guideBookId=? and

t.saleItemId.medicalGroup.block=? and t.saleItemId..medicalGroup.df<>1]
Caused by: org.hibernate.hql.ast.QuerySyntaxException: expecting IDENT, found '.' near line 1, column 143 [select

t.saleItemId.medicalGroup from ookj.domain.TjSaleResult t where t.guideBookId=? and t.saleItemId.medicalGroup.block=? and

t.saleItemId..medicalGroup.df<>1]

_____多了一个点

12.错误
java.net.SocketException: java.net.ConnectException: Connection refused: connect

————数据库未启动

13.错误
严重: Servlet.service() for servlet tijianServlet threw exception
java.lang.NoSuchMethodError: ookj.service.SendReagentService.saveTjSendReagent

(Lookj/domain/TjReagent;Lookj/domain/SaleGuideBook;)[Ljava/lang/String;

————Tomcat\Java虚拟集中代码未跟上，不能保持同步，重启虚拟机就好了。

偶嘀错误集合 [转贴 2007-03-04 15:19:00]

1. 做Hibernate多对一的时候遇到错误

(1)org.apache.jasper.JasperException: Error creating bean with name 'sf' defined in ServletContext resource [/WEB-

INF/applicationContext.xml]: Initialization of bean failed; nested exception is org.hibernate.PropertyNotFoundException:

Could not find a getter for person in class com.accp.vo.Course

因为配置文件中的一个 <many-to-one name="person" ../> 中的person属性名称写错了.

还有原因如下:
1)getter()方法写错了,没有按照javaBean的规则写.
2)*.hmb.xml中的属性名和pojo中的是否一致.注意:属性名是否多了空格.

(2).Hibernate多对一报错:

save the transient instance before flushing

具体错误为在one-to-many中，对many进行save时，由于没有加入one的外建，导致错误。
具体解决方法：
（1）、在one的hbm文件中 invest=true
（2）、在many保存前务必要求one的存在

2.spring+struts+hibernate 项目debug总结
(1) javax.servlet.ServletException: Cannot retrieve mapping for action /companyNews
struts-config.xml中没有写相关companyNews的action.

(2) 在myeclipse增加一个jar包时候，先打开项目properties,选择java build path --> libraries -->add external JARs 选择到需要的

jar包，加入后，发现，他这个包加载的是绝对路径，而我们的项目需要cvs共享，无法commit到cvs服务器。myeclipse有以下提示信息：
2 build path entries are missing.

解决办法是，关闭myeclipse,用notepad打开项目目录下的 .classpath, 手动修改成相对路径，并且检 查，指定的相对路径中是否真正添

加了jar包，启动myeclipse就可以上传新添加的jar包了。

(3) 在使用junit/StrutsTest时候，报错：
java.lang.UnsupportedClassVersionError: junit/framework/TestListener (Unsupported major.minor version 49.0)

原因是如果是jdk1.4的话，只能使用junit3.8以下版本，如果是使用jdk1.5的话，必须使用junit4.0 以上版本。

(4) Cannot find ActionMappings or ActionformBeans collection
原因是：web.xml文件中没有配置struts-config.xml的相关信息。

(5) org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jstl/core cannot be resolved in either web.xml

or the jar files deployed with this application

缺少jstl的相关jar和web.xml配置
jstl.jar
<taglib>
<taglib-uri>http://java.sun.com/jstl/fmt</taglib-uri>
<taglib-location>/WEB-INF/fmt.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/fmt-rt</taglib-uri>
<taglib-location>/WEB-INF/fmt-rt.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
<taglib-location>/WEB-INF/c.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/core-rt</taglib-uri>
<taglib-location>/WEB-INF/c-rt.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/sql</taglib-uri>
<taglib-location>/WEB-INF/sql.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/sql-rt</taglib-uri>
<taglib-location>/WEB-INF/sql-rt.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/x</taglib-uri>
<taglib-location>/WEB-INF/x.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/x-rt</taglib-uri>
<taglib-location>/WEB-INF/x-rt.tld</taglib-location>
</taglib>

(5) Failed to load or instantiate TagLibraryValidator class: org.apache.taglibs.standard.tlv.JstlCoreTLV
standard.jar没有放在lib里面

(6) 创建oracle表的时候，使用了，role和comment关键字，建议不要将这两个关键字作为表名和字段名。
建议用toad或plsql developer创建表，这样软件会提示关键字。

(7) [ERROR] XMLHelper - Error parsing XML: XML InputStream(18) Attribute name "column" associated with an element type "key"

must be followed by the ' = ' character.
[ERROR] Configuration - Could not configure datastore from input stream <org.dom4j.DocumentException: Error on line 18 of

document : Attribute name "column" associated with an element type "key"

must be followed by the ' = ' character. Nested exception: Attribute name "column" associated with an element type "key" must

be followed by the ' = ' character.>org.dom4j.DocumentException: Error

on line 18 of document : Attribute name "column" associated with an element type "key" must be followed by the ' = '

character. Nested exception: Attribute name "column" associated with an element

type "key" must be followed by the ' = ' character.

xml 语法错误，key语法中应该类似这样的写法 <key column="id">

(8) hibernate3,对象中一对多的one方，必须写private Set pays=new HashSet();，否则包错java.lang.NullPointerException ，
而hibernate2中private Set pays;却不报错；

(9) [DEBUG] AbstractSaveEventListener - generated identifier: 1, using strategy: org.hibernate.id.IncrementGenerator
org.hibernate.PropertyValueException: not-null property references a null or transient value: com.xxx.yyy.company
at org.hibernate.engine.Nullability.checkNullability(Nullability.java:72)

<many to one >中的设置应该设置为not-null="false" ，设置为not-null="true"则报以上错误

(10) org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance

before flushing: com.xxx.yyy.Company

在save的同时也需要save其他的表，然后再flush()

(11) Parse Fatal Error at line 12 column 1

struts-config.xml文件被修改，语法错误。检查语法。

(12)org.hibernate.QueryException: could not resolve property: userid of:

com.xxx.yyy.Pay

使用到外键userid的时候，必须使用userinfo.userid方法才能得到。

(13)javax.naming.NameNotFoundException: Name hibernate_connection_factory is not

bound in this Context 原因：hibernate的数据库映射.xml文件有配置错误，导致hibernate_connection_factory无法绑定数据库。
例如many-to-one设置了以后，仍然在其中设置相冲突的<property>属性。

(14) [WARN] RequestProcessor - Unhandled Exception thrown: class java.lang.NullPointerException
必须将使用到的对象new起来。

(15) GROUP BY 表达式的查询必须满足如下：
select 子句后的每一项必需出现在group by 子句中，除非该项使用了聚集函数。(16) org.hibernate.TransientObjectException: object references an unsaved transientinstance - save the transient instance before flushing: com.xxx.yyy.Company要级联保存，多次session.save()(17)java.lang.IllegalArgumentException: id to load is required for loading原因：session.load(Company.class,payForm.getCompanyId());load()方法第二个参数必须是searlizable,并且必须是和数据库映射类的属性值类型一致，即使强制转换都不行。(18) [INFO] DefaultLoadEventListener - Error performing load command <org.hibernate.ObjectNotFoundException: No row with thegiven identifier exists: [com.xxx.yyy.Company#0]>org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [com.xxx.yyy.Company#0]表示你现在查询的对象所关联的对象有问题，一般是因为数据的问题（该对象所关联的对象找不到）,数据的错误，影响了程序正常执行。(19)eclipse 3.1,myeclipse 4错误Deployment is out of date due to changes in the underlying project contents . You'll need to mannally 'Redeploy' the projectto update the deployed archive.原因tomcat 中部署的某个文件的拒绝访问影响了部署。重启后，去除tomcat中部署的文件。重新在eclipse中设置部署。为什么需要重启？因为：google desktop软件正在对我部署的一个300MB大文件进行索引，锁定了这个大文件，我估计google desktop需要对这个文件索引半个小时以上。因此，eclipse无法对过去部署的文件，做先删除后重新部署的工作。(20) ERROR LazyInitializationException:19 - could not initialize proxy - the owning Session was closedorg.hibernate.LazyInitializationException: could not initialize proxy - the owning Session was closed解决办法。cmpy=(CompanyEdit)ss.load(CompanyEdit.class,companyId1);Hibernate.initialize(cmpy);//强制初始化cmpy,否则ss.close()后,cmpy将消失.(21) javascript错误行: 56字符: 45错误: 未结束的字符串常量代码: 0是编码的问题！用ANSI编码另存后就好了。(22) [WARN] JDBCExceptionReporter - SQL Error: 904, SQLState: 42000[ERROR] JDBCExceptionReporter - ORA-00904: 无效列名 [INFO] DefaultLoadEventListener - Error performing load command<org.hibernate.exception.SQLGrammarException: could not load an entity: [com.xxx.yyy.Sellinfo#1]>org.hibernate.exception.SQLGrammarException: could not load an entity: [com.xxx.yyy.Sellinfo#1]***.hbm.xml文件中的某个列名和数据库中的不同。(23) ConnectionManager - unclosed connection, forgot to call close() on your session?原因：没有关闭hibernate的session的transaction。或者没有关闭session(24) [WARN] SellCommentDAO - org.hibernate.ObjectDeletedException: deleted object would be re-saved by cascade (removedeleted object from associations): [com.xxx.yyy.SellComment#7]原因：父亲对象（one方）设置cascade="save-update" 时，直接删除子对象时，会报错，处理方法：save信息需要级联操作，delete时候也要用相同的原理。SellComment sellComment=new SellComment();sellComment = (SellComment)session.load(SellComment.class,sellCommentId);//获取儿子对象Long sellInfoId=sellComment.getSellInfo().getSellId();//获取父亲idSellInfo sellinfo=(SellInfo)session.load(SellInfo.class,sellInfoId);//获取父亲对象sellInfo.getSellComments().remove(sellComment);//断绝父子关系sellComment.setSellInfo(null);//断绝子父关系session.delete(sellComment);//删除儿子session.flush();偶嘀错误集合 [转贴 2007-03-04 15:19:00] 1. 做Hibernate多对一的时候遇到错误(1)org.apache.jasper.JasperException: Error creating bean with name 'sf' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Initialization of bean failed; nested exception is org.hibernate.PropertyNotFoundException:Could not find a getter for person in class com.accp.vo.Course因为配置文件中的一个 <many-to-one name="person" ../> 中的person属性名称写错了.还有原因如下:1)getter()方法写错了,没有按照javaBean的规则写.2)*.hmb.xml中的属性名和pojo中的是否一致.注意:属性名是否多了空格.(2).Hibernate多对一报错:save the transient instance before flushing具体错误为在one-to-many中，对many进行save时，由于没有加入one的外建，导致错误。具体解决方法：（1）、在one的hbm文件中 invest=true（2）、在many保存前务必要求one的存在2.spring+struts+hibernate 项目debug总结(1) javax.servlet.ServletException: Cannot retrieve mapping for action /companyNewsstruts-config.xml中没有写相关companyNews的action.(2) 在myeclipse增加一个jar包时候，先打开项目properties,选择java build path --> libraries -->add external JARs 选择到需要的jar包，加入后，发现，他这个包加载的是绝对路径，而我们的项目需要cvs共享，无法commit到cvs服务器。myeclipse有以下提示信息：2 build path entries are missing.解决办法是，关闭myeclipse,用notepad打开项目目录下的 .classpath, 手动修改成相对路径，并且检 查，指定的相对路径中是否真正添加了jar包，启动myeclipse就可以上传新添加的jar包了。(3) 在使用junit/StrutsTest时候，报错：java.lang.UnsupportedClassVersionError: junit/framework/TestListener (Unsupported major.minor version 49.0)原因是如果是jdk1.4的话，只能使用junit3.8以下版本，如果是使用jdk1.5的话，必须使用junit4.0 以上版本。(4) Cannot find ActionMappings or ActionformBeans collection原因是：web.xml文件中没有配置struts-config.xml的相关信息。(5) org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jstl/core cannot be resolved in either web.xmlor the jar files deployed with this application缺少jstl的相关jar和web.xml配置jstl.jar<taglib><taglib-uri>http://java.sun.com/jstl/fmt</taglib-uri><taglib-location>/WEB-INF/fmt.tld</taglib-location></taglib><taglib><taglib-uri>http://java.sun.com/jstl/fmt-rt</taglib-uri><taglib-location>/WEB-INF/fmt-rt.tld</taglib-location></taglib><taglib><taglib-uri>http://java.sun.com/jstl/core</taglib-uri><taglib-location>/WEB-INF/c.tld</taglib-location></taglib><taglib><taglib-uri>http://java.sun.com/jstl/core-rt</taglib-uri><taglib-location>/WEB-INF/c-rt.tld</taglib-location></taglib><taglib><taglib-uri>http://java.sun.com/jstl/sql</taglib-uri><taglib-location>/WEB-INF/sql.tld</taglib-location></taglib><taglib><taglib-uri>http://java.sun.com/jstl/sql-rt</taglib-uri><taglib-location>/WEB-INF/sql-rt.tld</taglib-location></taglib><taglib><taglib-uri>http://java.sun.com/jstl/x</taglib-uri><taglib-location>/WEB-INF/x.tld</taglib-location></taglib><taglib><taglib-uri>http://java.sun.com/jstl/x-rt</taglib-uri><taglib-location>/WEB-INF/x-rt.tld</taglib-location></taglib>(5) Failed to load or instantiate TagLibraryValidator class: org.apache.taglibs.standard.tlv.JstlCoreTLVstandard.jar没有放在lib里面(6) 创建oracle表的时候，使用了，role和comment关键字，建议不要将这两个关键字作为表名和字段名。建议用toad或plsql developer创建表，这样软件会提示关键字。(7) [ERROR] XMLHelper - Error parsing XML: XML InputStream(18) Attribute name "column" associated with an element type "key"must be followed by the ' = ' character.[ERROR] Configuration - Could not configure datastore from input stream <org.dom4j.DocumentException: Error on line 18 ofdocument : Attribute name "column" associated with an element type "key"must be followed by the ' = ' character. Nested exception: Attribute name "column" associated with an element type "key" mustbe followed by the ' = ' character.>org.dom4j.DocumentException: Erroron line 18 of document : Attribute name "column" associated with an element type "key" must be followed by the ' = 'character. Nested exception: Attribute name "column" associated with an elementtype "key" must be followed by the ' = ' character.xml 语法错误，key语法中应该类似这样的写法 <key column="id">(8) hibernate3,对象中一对多的one方，必须写private Set pays=new HashSet();，否则包错java.lang.NullPointerException ，而hibernate2中private Set pays;却不报错；(9) [DEBUG] AbstractSaveEventListener - generated identifier: 1, using strategy: org.hibernate.id.IncrementGeneratororg.hibernate.PropertyValueException: not-null property references a null or transient value: com.xxx.yyy.companyat org.hibernate.engine.Nullability.checkNullability(Nullability.java:72)<many to one >中的设置应该设置为not-null="false" ，设置为not-null="true"则报以上错误(10) org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instancebefore flushing: com.xxx.yyy.Company在save的同时也需要save其他的表，然后再flush()(11) Parse Fatal Error at line 12 column 1struts-config.xml文件被修改，语法错误。检查语法。(12)org.hibernate.QueryException: could not resolve property: userid of:com.xxx.yyy.Pay使用到外键userid的时候，必须使用userinfo.userid方法才能得到。(13)javax.naming.NameNotFoundException: Name hibernate_connection_factory is notbound in this Context 原因：hibernate的数据库映射.xml文件有配置错误，导致hibernate_connection_factory无法绑定数据库。例如many-to-one设置了以后，仍然在其中设置相冲突的<property>属性。(14) [WARN] RequestProcessor - Unhandled Exception thrown: class java.lang.NullPointerException必须将使用到的对象new起来。(15) GROUP BY 表达式的查询必须满足如下：select 子句后的每一项必需出现在group by 子句中，除非该项使用了聚集函数。(16) org.hibernate.TransientObjectException: object references an unsaved transientinstance - save the transient instance before flushing: com.xxx.yyy.Company要级联保存，多次session.save()(17)java.lang.IllegalArgumentException: id to load is required for loading原因：session.load(Company.class,payForm.getCompanyId());load()方法第二个参数必须是searlizable,并且必须是和数据库映射类的属性值类型一致，即使强制转换都不行。(18) [INFO] DefaultLoadEventListener - Error performing load command <org.hibernate.ObjectNotFoundException: No row with thegiven identifier exists: [com.xxx.yyy.Company#0]>org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [com.xxx.yyy.Company#0]表示你现在查询的对象所关联的对象有问题，一般是因为数据的问题（该对象所关联的对象找不到）,数据的错误，影响了程序正常执行。(19)eclipse 3.1,myeclipse 4错误Deployment is out of date due to changes in the underlying project contents . You'll need to mannally 'Redeploy' the projectto update the deployed archive.原因tomcat 中部署的某个文件的拒绝访问影响了部署。重启后，去除tomcat中部署的文件。重新在eclipse中设置部署。为什么需要重启？因为：google desktop软件正在对我部署的一个300MB大文件进行索引，锁定了这个大文件，我估计google desktop需要对这个文件索引半个小时以上。因此，eclipse无法对过去部署的文件，做先删除后重新部署的工作。(20) ERROR LazyInitializationException:19 - could not initialize proxy - the owning Session was closedorg.hibernate.LazyInitializationException: could not initialize proxy - the owning Session was closed解决办法。cmpy=(CompanyEdit)ss.load(CompanyEdit.class,companyId1);Hibernate.initialize(cmpy);//强制初始化cmpy,否则ss.close()后,cmpy将消失.(21) javascript错误行: 56字符: 45错误: 未结束的字符串常量代码: 0是编码的问题！用ANSI编码另存后就好了。(22) [WARN] JDBCExceptionReporter - SQL Error: 904, SQLState: 42000[ERROR] JDBCExceptionReporter - ORA-00904: 无效列名 [INFO] DefaultLoadEventListener - Error performing load command<org.hibernate.exception.SQLGrammarException: could not load an entity: [com.xxx.yyy.Sellinfo#1]>org.hibernate.exception.SQLGrammarException: could not load an entity: [com.xxx.yyy.Sellinfo#1]***.hbm.xml文件中的某个列名和数据库中的不同。(23) ConnectionManager - unclosed connection, forgot to call close() on your session?原因：没有关闭hibernate的session的transaction。或者没有关闭session(24) [WARN] SellCommentDAO - org.hibernate.ObjectDeletedException: deleted object would be re-saved by cascade (removedeleted object from associations): [com.xxx.yyy.SellComment#7]原因：父亲对象（one方）设置cascade="save-update" 时，直接删除子对象时，会报错，处理方法：save信息需要级联操作，delete时候也要用相同的原理。SellComment sellComment=new SellComment();sellComment = (SellComment)session.load(SellComment.class,sellCommentId);//获取儿子对象Long sellInfoId=sellComment.getSellInfo().getSellId();//获取父亲idSellInfo sellinfo=(SellInfo)session.load(SellInfo.class,sellInfoId);//获取父亲对象sellInfo.getSellComments().remove(sellComment);//断绝父子关系sellComment.setSellInfo(null);//断绝子父关系session.delete(sellComment);//删除儿子session.flush();2008-2-2 9:45:13 org.hibernate.util.JDBCExceptionReporter logExceptions严重: Unknown column 'tjsaleresu0_.isupdate' in 'field list'2008-2-2 9:45:13 org.hibernate.event.def.DefaultLoadEventListener onLoad信息: Error performing load commandorg.hibernate.exception.SQLGrammarException: could not load an entity: [ookj.domain.TjSaleResult#293]--数据库中没有“isupdate”字段2008-2-2 9:51:42 org.hibernate.util.JDBCExceptionReporter logExceptions警告: SQL Error: 1052, SQLState: 230002008-2-2 9:51:42 org.hibernate.util.JDBCExceptionReporter logExceptions严重: Column 'df' in where clause is ambiguous————find("select
tsr from TjSaleResult tsr, TjItemResult tir where tsr=tir.saleResultId
and tir=? and df<>1", new Object[]{tir});————语句中的df不能确定是哪个表的org.springframework.orm.hibernate3.HibernateQueryException:
could not resolve property: trackDate of: ookj.domain.TjReagentTrack
[from ookj.domain.TjReagentTrack trt where trt.trackStage=? and
trt.trackDate=? and trt.userId=? and trt.df<>1]; nested exception
is org.hibernate.QueryException: could not resolve property: trackDate
of: ookj.domain.TjReagentTrack [from ookj.domain.TjReagentTrack trt
where trt.trackStage=? and trt.trackDate=? and trt.userId=? and
trt.df<>1]Caused by:
org.hibernate.QueryException: could not resolve property: trackDate of:
ookj.domain.TjReagentTrack [from ookj.domain.TjReagentTrack trt where
trt.trackStage=? and trt.trackDate=? and trt.userId=? and
trt.df<>1]————问题是配置中：       private static String[][] properties={           {"getReagentTrackId","reagent_trackid","0"},          {"getReagentId","reagentid","1"},          {"getUserId","userid","1"},          {"getGuideBookId","guidebookid","1"},          {"getTrackTime","tracktime","0"},                //这里名称不对          {"trackStage","trackstage","0"},          {"getDf","df","0"}————还有nd trt.trackDate=? 语句中的值有误。java.lang.ClassCastException: ookj.domain.OokjDateTime————基本的 类型转换错误   String sql = "from TjReagentTrack trt where trt.trackStage=? and trt.trackTime like ? and trt.userId=? and trt.df<>1";  
List<TjReagentTrack> list_reagenttrack = srs.find(sql, new
Object[]{TjReagentTrack.TRACKSTAGE_QU, "%"+new OokjDate(new
Date()).toString()+"%", su});   ApplicationInstance.getActive().setFocusedComponent(textField_Register);————Echo2焦点问题org.springframework.dao.InvalidDataAccessApiUsageException:
object references an unsaved transient instance - save the transient
instance before flushing: ookj.domain.SmDept; nested exception is
org.hibernate.TransientObjectException: object references an unsaved
transient instance - save the transient instance before flushing:
ookj.domain.SmDeptCaused by:
org.hibernate.TransientObjectException: object references an unsaved
transient instance - save the transient instance before flushing:
ookj.domain.SmDept————new了一个新对象，在未保存之前将它保存进了一个新new的对象。问题1，quartz 1.6 配置问题。需要使用common-collection-1.3.jar信息: could not read column value from result set: activep19_59_; could not deserializeException
in thread "main"
org.springframework.orm.hibernate3.HibernateSystemException: could not
deserialize; nested exception is
org.hibernate.type.SerializationException: could not deserializeCaused by: org.hibernate.type.SerializationException: could not deserializeat org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:217)at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:240)at org.hibernate.type.SerializableType.fromBytes(SerializableType.java:82)at org.hibernate.type.SerializableType.get(SerializableType.java:39)at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:163)at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:154)at org.hibernate.type.AbstractType.hydrate(AbstractType.java:81)at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:2096)at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1380)at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1308)at org.hibernate.loader.Loader.getRow(Loader.java:1206)at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:580)at org.hibernate.loader.Loader.doQuery(Loader.java:701)at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)at org.hibernate.loader.Loader.doList(Loader.java:2220)at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)at org.hibernate.loader.Loader.list(Loader.java:2099)at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378)at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)at org.springframework.orm.hibernate3.HibernateTemplate$29.doInHibernate(HibernateTemplate.java:849)at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:372)at org.springframework.orm.hibernate3.HibernateTemplate.find(HibernateTemplate.java:840)at ookj.dao.pub.impl.CommonDaoImpl.find(CommonDaoImpl.java:96)at ookj.service.impl.BasicServiceImpl.find(BasicServiceImpl.java:45)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.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:296)at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:177)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144)at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)at $Proxy1.find(Unknown Source)at ookj.ui.barcode.BarCodePerson.returnBookFromCode(BarCodePerson.java:63)at ookj.ui.barcode.BarCodePerson.getFengMian(BarCodePerson.java:44)at ookj.ui.barcode.BarCodePerson.main(BarCodePerson.java:28)Caused by: java.io.EOFExceptionat java.io.ObjectInputStream$PeekInputStream.readFully(Unknown Source)at java.io.ObjectInputStream$BlockDataInputStream.readShort(Unknown Source)at java.io.ObjectInputStream.readStreamHeader(Unknown Source)at java.io.ObjectInputStream.<init>(Unknown Source)at org.hibernate.util.SerializationHelper$CustomObjectInputStream.<init>(SerializationHelper.java:252)at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:209)... 40 more++++++<property column="sendfei" length="16" name="sendFei" type="java.math.BigDecimal"   />++++======<many-to-one column="activeplace" name="activePlace" class="ookj.domain.SmDept"   />======org.hibernate.type.SerializationException could not deserialize;我用的数据库是mysql，在通过pojo类自动生成的类中，未为字段指定type，hibernate对自动为其指定，如果它所生成的type不能被反序列化，就会抛出java.util.ServilizableException比如我产生异常的原因是我建立了一个string[]类型的字段，但在对应的.hbm.xml文件中我没有显式定义它的类型，hibernate自动为其指定了类型，该类型不能被反序列化。2008-1-29 14:06:31 org.hibernate.util.JDBCExceptionReporter logExceptions严重: Invalid value for getInt() - '2008-01-18 12:12:12' in column 242008-1-29 14:06:32 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from class path resource [org/springframework/jdbc/support/sql-error-codes.xml]2008-1-29 14:06:32 org.springframework.jdbc.support.SQLErrorCodesFactory <init>信息: SQLErrorCodes loaded: [DB2, Derby, H2, HSQL, Informix, MS-SQL, MySQL, Oracle, PostgreSQL, Sybase]++++<property column="prereportdate" length="6" name="preReportDate" type="java.lang.Integer"   />+++++====<property column="prereportdate" length="20" name="preReportDate" type="java.lang.String"   />===Expected
positional parameter count: 1, actual parameters: [] [select m from
TjMedicalName m, TjSaleResult s where s.guideBookId = ? and
s.df<>1 and s.saleItemId.medicalGroup.medicalId=m.medicalId]++++bs.find("select
m from TjMedicalName m, TjSaleResult s where s.guideBookId = ? and
s.df<>1 and s.saleItemId.medicalGroup.medicalId=m.medicalId");+++====bs.find("select
m from TjMedicalName m, TjSaleResult s where s.guideBookId = ? and
s.df<>1 and s.saleItemId.medicalGroup.medicalId=m.medicalId", new
Object[]{sgb});===严重: line 1:143: expecting IDENT, found '.'2008-2-3 0:41:01 org.apache.catalina.core.StandardWrapperValve invoke严重: Servlet.service() for servlet tijianServlet threw exceptionorg.springframework.orm.hibernate3.HibernateQueryException:
expecting IDENT, found '.' near line 1, column 143 [select
t.saleItemId.medicalGroup from ookj.domain.TjSaleResult t where
t.guideBookId=? and t.saleItemId.medicalGroup.block=? and
t.saleItemId..medicalGroup.df<>1]; nested exception is
org.hibernate.hql.ast.QuerySyntaxException: expecting IDENT, found '.'
near line 1, column 143 [select t.saleItemId.medicalGroup from
ookj.domain.TjSaleResult t where t.guideBookId=? and
t.saleItemId.medicalGroup.block=? and
t.saleItemId..medicalGroup.df<>1]Caused
by: org.hibernate.hql.ast.QuerySyntaxException: expecting IDENT, found
'.' near line 1, column 143 [select t.saleItemId.medicalGroup from
ookj.domain.TjSaleResult t where t.guideBookId=? and
t.saleItemId.medicalGroup.block=? and
t.saleItemId..medicalGroup.df<>1]_____多了一个点java.net.SocketException: java.net.ConnectException: Connection refused: connect————数据库未启动严重: Servlet.service() for servlet tijianServlet threw exceptionjava.lang.IndexOutOfBoundsException: Remember that ordinal parameters are 1-based!————忘了怎么解决的了，反正不是大问题。严重: Servlet.service() for servlet tijianServlet threw exceptionjava.lang.NoSuchMethodError:

ookj.service.SendReagentService.saveTjSendReagent(Lookj/domain/TjReagent;Lookj/domain/SaleGuideBook;)[Ljava/lang/String;————Tomcat\Java虚拟集中代码未跟上，不能保持同步，重启虚拟机就好了。严重: Unknown column 'tjsendreag0_.tj_sendreagent' in 'field list'org.springframework.dao.InvalidDataAccessResourceUsageException:
could not execute query; nested exception is
org.hibernate.exception.SQLGrammarException: could not execute queryCaused by: org.hibernate.exception.SQLGrammarException: could not execute queryCaused by: com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Unknown column 'tjsendreag0_.tj_sendreagent' in 'field list'————配置文件hbr.xml中写的tj_sendreagent字段，在数据库中找不到。1,TextField控件textField_Maker.setEnabled(false);为禁用true为可用。2,   GroupBox groupBox_GeRenJiHuo = new GroupBox();   groupBox_GeRenJiHuo.setWidth(new Extent(300, Extent.PX));   groupBox_GeRenJiHuo.setTitle("个人预约激活");   RowLayoutData groupBox_GeRenJiHuoLayoutData = new RowLayoutData();   groupBox_GeRenJiHuoLayoutData.setInsets(new Insets(new Extent(20,     Extent.PX)));   groupBox_GeRenJiHuo.setLayoutData(groupBox_GeRenJiHuoLayoutData);   row_JiHuo.add(groupBox_GeRenJiHuo);   GroupBox groupBox_TuanDuiJiHuo = new GroupBox();   groupBox_TuanDuiJiHuo.setWidth(new Extent(300, Extent.PX));   groupBox_TuanDuiJiHuo.setTitle("团队预约激活");   groupBox_TuanDuiJiHuo.setInsets(new Insets(new Extent(20, Extent.PX)));   row_JiHuo.add(groupBox_TuanDuiJiHuo);第二个是内部20的间隙。第一个没表现。