hibernate问题

Question

环境：struts2、hibernate、spring
在用hibernate建表 要求实体文件要继承他的抽象类和实现java.io.Serializable 
（配置已经好了，就是写实体类和hbm.xml配置文件要怎么写  谁给个这样的代码参考下  要写注释哦  谢谢了） 

Answer 1

用myeclipse执行hibernate反向工程，里面有个选项，是否生成抽象类。
你的要求完全可以用工具做，你看看工具生成的就明白了。

Answer 2

MyEclipse 有自带反向工程的工具.只需要配置数据库JDBC即可.

Answer 3

我没想要什么工具生成啊  我这里有个项目 里面的实体都是abstract的  而且都继承java.io.Serializable    现在我想在这个项目里面在用hibernate生成一个表  java文件和.hbm.xml文件都写好了 但是重启tomcat时候报错  说不能读取我的。hbm.xml文件   我想可能是因为我现在写的和原来的不一样了   
  注：原来实体文件中有：AbstractUser.java、User.java、User.hbm.xml  我实在是看不明白啊 

Answer 4

把你的User.java、User.hbm.xml 发过来，我给你看看！ 

Answer 5

mport java.util.Date;/**
 * AbstractTcard entity provides the base persistence definition of the Tcard
 * entity.
 * 
 * @author MyEclipse Persistence Tools
 */public abstract class AbstractTcard implements java.io.Serializable {
private static final long serialVersionUID = 1L;

private Integer fid;
private String fuserId;
private String fcardName;
private Integer flabelId;
private String fdrawXml;
private String fdisk;
private String fimgPath;
private Date flastSaveTime;
private Byte sendToWeb;
private Integer sendToMail;
private Integer sendToUser;
private Integer sendToPost;
private Byte sendToPic;
private Integer deleted; // Constructors /** default constructor */
public AbstractTcard() {
} /** full constructor */
public AbstractTcard(Integer fid, String fuserId, String fcardName,
Integer flabelId, String fdrawXml, String fdisk, String fimgPath,
Date flastSaveTime, Byte sendToWeb, Integer sendToMail,
Integer sendToUser, Integer sendToPost, Byte sendToPic,
Integer deleted) {
this.fid = fid;
this.fuserId = fuserId;
this.fcardName = fcardName;
this.flabelId = flabelId;
this.fdrawXml = fdrawXml;
this.fdisk = fdisk;
this.fimgPath = fimgPath;
this.flastSaveTime = flastSaveTime;
this.sendToWeb = sendToWeb;
this.sendToMail = sendToMail;
this.sendToUser = sendToUser;
this.sendToPost = sendToPost;
this.sendToPic = sendToPic;
this.deleted = deleted;
} // Property accessors public Integer getFid() {
return this.fid;
} public void setFid(Integer fid) {
this.fid = fid;
} public String getFuserId() {
return this.fuserId;
} public void setFuserId(String fuserId) {
this.fuserId = fuserId;
} public String getFcardName() {
return this.fcardName;
} public void setFcardName(String fcardName) {
this.fcardName = fcardName;
} public Integer getFlabelId() {
return this.flabelId;
} public void setFlabelId(Integer flabelId) {
this.flabelId = flabelId;
} public String getFdrawXml() {
return this.fdrawXml;
} public void setFdrawXml(String fdrawXml) {
this.fdrawXml = fdrawXml;
} public String getFdisk() {
return this.fdisk;
} public void setFdisk(String fdisk) {
this.fdisk = fdisk;
} public String getFimgPath() {
return this.fimgPath;
} public void setFimgPath(String fimgPath) {
this.fimgPath = fimgPath;
} public Date getFlastSaveTime() {
return this.flastSaveTime;
} public void setFlastSaveTime(Date flastSaveTime) {
this.flastSaveTime = flastSaveTime;
} public Byte getSendToWeb() {
return this.sendToWeb;
} public void setSendToWeb(Byte sendToWeb) {
this.sendToWeb = sendToWeb;
} public Integer getSendToMail() {
return this.sendToMail;
} public void setSendToMail(Integer sendToMail) {
this.sendToMail = sendToMail;
} public Integer getSendToUser() {
return this.sendToUser;
} public void setSendToUser(Integer sendToUser) {
this.sendToUser = sendToUser;
} public Integer getSendToPost() {
return this.sendToPost;
} public void setSendToPost(Integer sendToPost) {
this.sendToPost = sendToPost;
} public Byte getSendToPic() {
return this.sendToPic;
} public void setSendToPic(Byte sendToPic) {
this.sendToPic = sendToPic;
} public Integer getDeleted() {
return this.deleted;
} public void setDeleted(Integer deleted) {
this.deleted = deleted;
}}

Answer 6

<hibernate-mapping schema="dbo" catalog="hxwdb">
    <class name="com.hxw.card.entity.Tcard" table="TCard" schema="dbo" catalog="hxwdb">
        <id name="fid" type="java.lang.Integer">
            <column name="fID" />
            <generator class="increment" />
        </id>
        
        <property name="fuserId" type="java.lang.String">
            <column name="fUserID" length="50" not-null="true" />
        </property>
        <property name="fcardName" type="java.lang.String">
            <column name="fCardName" length="50" not-null="true" />
        </property>
        <property name="flabelId" type="java.lang.Integer">
            <column name="fLabelID" not-null="true" />
        </property>
        <property name="fdrawXml" type="java.lang.String">
            <column name="fDrawXml" length="50" not-null="true" />
        </property>
        <property name="fdisk" type="java.lang.String">
            <column name="fDisk" length="50" not-null="true" />
        </property>
        <property name="fimgPath" type="java.lang.String">
            <column name="fImgPath" not-null="true" />
        </property>
        <property name="flastSaveTime" type="java.util.Date">
            <column name="fLastSaveTime" length="16" not-null="true" />
        </property>
        <property name="sendToWeb" type="java.lang.Byte">
            <column name="sendToWeb" not-null="true" />
        </property>
        <property name="sendToMail" type="java.lang.Integer">
            <column name="sendToMail" not-null="true" />
        </property>
        <property name="sendToUser" type="java.lang.Integer">
            <column name="sendToUser" not-null="true" />
        </property>
        <property name="sendToPost" type="java.lang.Integer">
            <column name="sendToPost" not-null="true" />
        </property>
        <property name="sendToPic" type="java.lang.Byte">
            <column name="sendToPic" not-null="true" />
        </property>
        <property name="deleted" type="java.lang.Integer">
            <column name="deleted" not-null="true" />
        </property>
    </class>
</hibernate-mapping>

Answer 7

import java.util.Date;/**
 * Tcard entity.
 * 
 * @author MyEclipse Persistence Tools
 */
public class Tcard extends AbstractTcard implements java.io.Serializable { private static final long serialVersionUID = 1L;
private TcardWeb tcardWeb; /** default constructor */
public Tcard() {
} /** full constructor */
public Tcard(Integer fid, String fuserId, String fcardName,
Integer flabelId, String fdrawXml, String fdisk, String fimgPath,
Date flastSaveTime, Byte sendToWeb, Integer sendToMail,
Integer sendToUser, Integer sendToPost, Byte sendToPic,
Integer deleted,TcardWeb tcardWeb) {
super(fid, fuserId, fcardName, flabelId, fdrawXml, fdisk, fimgPath,
flastSaveTime, sendToWeb, sendToMail, sendToUser, sendToPost,
sendToPic, deleted);
this.tcardWeb=tcardWeb;
} public TcardWeb getTcardWeb() {
return tcardWeb;
} public void setTcardWeb(TcardWeb tcardWeb) {
this.tcardWeb = tcardWeb;
}}

Answer 8

都是普通类型属性没有什么难的！<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><hibernate-mapping>
  <class table="表名" name="包.AbstractTcard">
    <id name="fid" column="字段">
      <generator class="native"/>
    </id>
<property name="fuserId" length="长度" column="字段"/>
<property name="fcardName" length="长度" column="字段"/>
<property name="flabelId" column="字段"/>
<property name="fdrawXml" length="长度" column="字段"/>
<property name="fdisk" length="长度" column="字段"/>
<property name="fimgPath" length="长度" column="字段"/>
<property name="flastSaveTime" column="字段"/>
<property name="sendToWeb" column="字段"/>
<property name="sendToMail" column="字段"/>
<property name="sendToUser" column="字段"/>
<property name="sendToPost" column="字段"/>
<property name="sendToPic" column="字段"/>
<property name="deleted" column="字段"/>  </class>
</hibernate-mapping>

Answer 9

 但是重启tomcat时候报错
报的什么错误！把异常信息发过来

Answer 10

009-09-10 03:54 ERROR o.s.w.c.ContextLoader - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.transaction.interceptor.TransactionInterceptor#0': Cannot resolve reference to bean 'txManager' while setting bean property 'transactionManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'txManager' defined in class path resource [applicationContext.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.InvalidMappingException: Could not parse mapping document from file E:\Tomcat 6.0\webapps\hxw\WEB-INF\classes\com\hxw\card\entity\OilMessage.hbm.xml
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:275) [spring-beans-2.5.6.jar:2.5.6]
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:104) [spring-beans-2.5.6.jar:2.5.6]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1245) [spring-beans-2.5.6.jar:2.5.6]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010) [spring-beans-2.5.6.jar:2.5.6]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472) [spring-beans-2.5.6.jar:2.5.6]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) [spring-beans-2.5.6.jar:2.5.6]
at java.security.AccessController.doPrivileged(Native Method) [na:1.6.0_13]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) [spring-beans-2.5.6.jar:2.5.6]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) [spring-beans-2.5.6.jar:2.5.6]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) [spring-beans-2.5.6.jar:2.5.6]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) [spring-beans-2.5.6.jar:2.5.6]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) [spring-beans-2.5.6.jar:2.5.6]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) [spring-beans-2.5.6.jar:2.5.6]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429) [spring-beans-2.5.6.jar:2.5.6]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728) [spring-context-2.5.6.jar:2.5.6]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380) [spring-context-2.5.6.jar:2.5.6]
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255) [spring-web-2.5.6.jar:2.5.6]
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199) [spring-web-2.5.6.jar:2.5.6]
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45) [spring-web-2.5.6.jar:2.5.6]
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843) [catalina.jar:na]
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342) [catalina.jar:na]
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791) [catalina.jar:na]
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771) [catalina.jar:na]
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525) [catalina.jar:na]
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926) [catalina.jar:na]
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889) [catalina.jar:na]
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492) [catalina.jar:na]
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149) [catalina.jar:na]
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) [catalina.jar:na]
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117) [catalina.jar:na]
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) [catalina.jar:na]
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) [catalina.jar:na]
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) [catalina.jar:na]
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) [catalina.jar:na]
at org.apache.catalina.core.StandardService.start(StandardService.java:516) [catalina.jar:na]
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) [catalina.jar:na]
at org.apache.catalina.startup.Catalina.start(Catalina.java:578) [catalina.jar:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [na:1.6.0_13]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [na:1.6.0_13]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [na:1.6.0_13]
at java.lang.reflect.Method.invoke(Method.java:597) [na:1.6.0_13]
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) [bootstrap.jar:na]
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) [bootstrap.jar:na]

Answer 11

这个项目他连hibernate.cfg.xml都没有 直接注入spring的   我感觉他用的方法就跟1楼说的一样  用了反向工程 但我不知道怎么用反向工程啊 

Answer 12

Could not parse mapping document from file E:\Tomcat 6.0\webapps\hxw\WEB-INF\classes\com\hxw\card\entity\OilMessage.hbm.xml是这个OilMessage.hbm.xml文件有错！
而不是AbstractUser.java、User.java、User.hbm.xml  
自己好好看看异常堆栈信息吧！

Answer 13

哎  大哥 上面我跟你说了是我的报错啊    我就想知道如果我要按照他那种方式写要怎么写才不会出错 我看不明白他这样写的用意  这是最主要的哦   为什么要实现java.io.Serializable  干吗要弄个抽象类来 直接写个实体的不久可以了么  
我写了一个实体类  没用抽象类和实现java.io.Serializable 接口  。hbm。xml文件和你的写法一样  结果报错   不明白哦