在线等hibernate+struts2

Question

错误信息：
%%%% Error Creating SessionFactory %%%%
org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
at org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:108)
at org.hibernate.tuple.entity.EntityTuplizerFactory.constructDefaultTuplizer(EntityTuplizerFactory.java:133)
at org.hibernate.tuple.entity.EntityEntityModeToTuplizerMapping.<init>(EntityEntityModeToTuplizerMapping.java:80)
at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:322)
at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:473)
at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:133)
at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:84)
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:284)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1910)
at com.util.HibernateSessionFactory.<clinit>(HibernateSessionFactory.java:31)
at com.Test.main(Test.java:19)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:105)
... 10 more
Caused by: org.hibernate.PropertyNotFoundException: Could not find a getter for delFlg in class com.entity.User
at org.hibernate.property.BasicPropertyAccessor.createGetter(BasicPropertyAccessor.java:326)
at org.hibernate.property.BasicPropertyAccessor.getGetter(BasicPropertyAccessor.java:320)
at org.hibernate.mapping.Property.getGetter(Property.java:304)
at org.hibernate.tuple.entity.PojoEntityTuplizer.buildPropertyGetter(PojoEntityTuplizer.java:299)
at org.hibernate.tuple.entity.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:155)
at org.hibernate.tuple.entity.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:77)
... 15 more
%%%% Error Creating SessionFactory %%%%
org.hibernate.InvalidMappingException: Could not parse mapping document from resource com/entity/User.hbm.xml
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXml(Configuration.java:4006)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXmlQueue(Configuration.java:3995)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3983)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1436)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1894)
at com.util.HibernateSessionFactory.rebuildSessionFactory(HibernateSessionFactory.java:70)
at com.util.HibernateSessionFactory.getSession(HibernateSessionFactory.java:53)
at com.Test.main(Test.java:19)
Caused by: org.hibernate.DuplicateMappingException: Duplicate class/entity mapping com.entity.User
at org.hibernate.cfg.Configuration$MappingsImpl.addClass(Configuration.java:3189)
at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:176)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXml(Configuration.java:4003)
... 7 more
Exception in thread "main" java.lang.NullPointerException
at com.Test.main(Test.java:20)hibernate.cfg.xml:<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"><hibernate-configuration><session-factory> <!-- Database connection settings -->
<property name="connection.driver_class">
com.mysql.jdbc.Driver
</property>
<property name="connection.url">
jdbc:mysql://127.0.0.1:3306/hibernate
</property>
<property name="connection.username">root</property>
<property name="connection.password">111111</property>
<property name="dialect">
org.hibernate.dialect.MySQLDialect
</property> <property name="show_sql">true</property>
<mapping resource="com/entity/User.hbm.xml" />
</session-factory></hibernate-configuration>User.hbm.xml:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
    <class name="com.entity.User" table="user">
        <id name="userid" type="java.lang.Integer">
            <column name="userid" />
            <generator class="native" />
        </id>
        <property name="username" type="java.lang.String">
            <column name="username" />
        </property>
        <property name="password" type="java.lang.String">
            <column name="password" />
        </property>
        <property name="truename" type="java.lang.String">
            <column name="truename" />
        </property>
        <property name="age" type="java.lang.Integer">
            <column name="age" />
        </property>
        <property name="telephone" type="java.lang.String">
            <column name="telephone" />
        </property>
        <property name="mobilephone" type="java.lang.String">
            <column name="mobilephone" />
        </property>
        <property name="address" type="java.lang.String">
            <column name="address" />
        </property>
        <property name="email" type="java.lang.String">
            <column name="email" />
        </property>
        <property name="suggest" type="java.lang.String">
            <column name="suggest" />
        </property>
        <property name="qqnum" type="java.lang.String">
            <column name="qqnum" />
        </property>
        <property name="birthday" type="java.sql.Timestamp">
            <column name="birthday" length="19" />
        </property>
        <property name="regtime" type="java.sql.Timestamp">
            <column name="regtime" length="19" />
        </property>
        <property name="updatetime" type="java.sql.Timestamp">
            <column name="updatetime" length="19" />
        </property>
        <property name="delFlg" type="java.lang.String">
            <column name="del_flg" />
        </property>
    </class>
</hibernate-mapping>

Answer 1

错误信息很细致啊：
Caused by: org.hibernate.PropertyNotFoundException: Could not find a getter for delFlg in class com.entity.UserCaused by: org.hibernate.DuplicateMappingException: Duplicate class/entity mapping com.entity.Userorg.hibernate.InvalidMappingException: Could not parse mapping document from resource com/entity/User.hbm.xml

Answer 2

user.bhm.xml配置有问题，user类的一个属性没有get方法。

Answer 3

应该是你创建sSessionFactory 的时候出错了，

Answer 4

2楼说的是对的.
1.Caused by: org.hibernate.PropertyNotFoundException: Could not find a getter for delFlg in class com.entity.User
这个表示你的User类中没有该属性delFlg的get方法
2.Caused by: org.hibernate.DuplicateMappingException: Duplicate class/entity mapping com.entity.Userorg.hibernate.InvalidMappingException: Could not parse mapping document from resource com/entity/User.hbm.xml
表示你 User.bhm.xml的class的位置配错了，或者是写错了
更改一下就没问题了