Hibernate中SessionFactory创建失败出现ExceptionInInitializerError异常和

com.zel.domain.Result类没有getStudent和setStudent方法

你生成的Result.java里应该有个Students类型的对象才对呀，同事也该有个Course对象呀

我在Result类中加了getStudents和setStudents方法后,上面的问题解决了.但又出现了类似的问题.即使在Specialty.java类中加getStudents和setStudents方法后也解决不了:
org.hibernate.PropertyNotFoundException: Could not find a getter for students in class com.zel.domain.Specialty
org.hibernate.property.BasicPropertyAccessor.createGetter(BasicPropertyAccessor.java:282)
org.hibernate.property.BasicPropertyAccessor.getGetter(BasicPropertyAccessor.java:275)
org.hibernate.mapping.Property.getGetter(Property.java:260)
org.hibernate.tuple.PojoEntityTuplizer.buildPropertyGetter(PojoEntityTuplizer.java:255)
org.hibernate.tuple.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:121)
org.hibernate.tuple.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55)
org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64)
org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:257)
org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:412)
org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:108)
org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:216)
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1176)
com.zel.dao.hibernate.HibernateUtil.<clinit>(HibernateUtil.java:16)
com.zel.web.struts.action.LoginAction.execute(LoginAction.java:51)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)下面是我创建students表和specialty表的SQL语句：
*****************************************
       specialty表：
CREATE TABLE specialty(
speid varchar(32) NOT NULL,
spename varchar(50) NOT NULL,
PRIMARY KEY (spename)
)
       students表（用specialty表的spename作为外键）：
CREATE TABLE students(
name varchar(32) default NULL,
stunumber varchar(32) NOT NULL,
password varchar(32) default NULL,
spe_name varchar(32) NOT NULL,
PRIMARY KEY (stunumber),
CONSTRAINT specialty_namefk FOREIGN KEY(spe_name)REFERENCES specialty(spename))
*******************************************************************************************
下面是我的Specialty.hbm.xml文件:
******************************
<?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.zel.domain.Specialty" table="specialty" catalog="examesystem">
        <id name="spename" type="java.lang.String">
            <column name="spename" length="50" />
            <generator class="assigned" />
        </id>
        <property name="speid" type="java.lang.String">
            <column name="speid" length="32" not-null="true" />
        </property>
        <set name="students" inverse="true">
            <key>
                <column name="spe_name" length="32" not-null="true" />
            </key>
            <one-to-many class="com.zel.domain.Students" />
        </set>
    </class>
</hibernate-mapping>
*******************************************************************************************
下面是Students.hbm.xml文件:
**************************
<?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.zel.domain.Students" table="students" catalog="examesystem">
        <id name="stunumber" type="java.lang.String">
            <column name="stunumber" length="32" />
            <generator class="assigned" />
        </id>
        <many-to-one name="specialty" class="com.zel.domain.Specialty" fetch="select">
            <column name="spe_name" length="32" not-null="true" />
        </many-to-one>
        <property name="name" type="java.lang.String">
            <column name="name" length="32" />
        </property>
        <property name="password" type="java.lang.String">
            <column name="password" length="32" />
        </property>
        <set name="subjectivedones" inverse="true">
            <key>
                <column name="sd_stu_number" length="32" not-null="true" />
            </key>
            <one-to-many class="com.zel.domain.Subjectivedone" />
        </set>
        <set name="results" inverse="true">
            <key>
                <column name="res_stunumber" length="32" not-null="true" />
            </key>
            <one-to-many class="com.zel.domain.Result" />
        </set>
    </class>
</hibernate-mapping>
**************************************************************************************
下面是com.zel.domain包中的Students.java类:
****************************************
package com.zel.domain;
import com.zel.dao.DAOFactory;
import com.zel.dao.SpecialtyDAO;
public class Students {
private String stunumber;
private String name;
private String password;
private String spe_name;
Specialty specialty;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getSpe_name() {
return spe_name;
}
public void setSpe_name(String spe_name) {
SpecialtyDAO speDao=DAOFactory.getInstance().createSpecialtyDAO();
Specialty spe=speDao.getSpecialtyByID(spe_name);
this.spe_name = spe.getSpename();
}
public String getStunumber() {
return stunumber;
}
public void setStunumber(String stunumber) {
this.stunumber = stunumber;
}
public Specialty getSpecialty() {
return specialty;
}
public void setSpecialty(Specialty specialty) {
this.specialty = specialty;
}}

我在Result类中加了getStudents和setStudents方法后,上面的问题解决了.但又出现了类似的问题.即使在Specialty.java类中加getStudents和setStudents方法后也解决不了:
org.hibernate.PropertyNotFoundException: Could not find a getter for students in class com.zel.domain.Specialty
org.hibernate.property.BasicPropertyAccessor.createGetter(BasicPropertyAccessor.java:282)
org.hibernate.property.BasicPropertyAccessor.getGetter(BasicPropertyAccessor.java:275)
org.hibernate.mapping.Property.getGetter(Property.java:260)
org.hibernate.tuple.PojoEntityTuplizer.buildPropertyGetter(PojoEntityTuplizer.java:255)
org.hibernate.tuple.AbstractEntityTuplizer. <init>(AbstractEntityTuplizer.java:121)
org.hibernate.tuple.PojoEntityTuplizer. <init>(PojoEntityTuplizer.java:55)
org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64)
org.hibernate.tuple.EntityMetamodel. <init>(EntityMetamodel.java:257)
org.hibernate.persister.entity.AbstractEntityPersister. <init>(AbstractEntityPersister.java:412)
org.hibernate.persister.entity.SingleTableEntityPersister. <init>(SingleTableEntityPersister.java:108)
org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
org.hibernate.impl.SessionFactoryImpl. <init>(SessionFactoryImpl.java:216)
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1176)
com.zel.dao.hibernate.HibernateUtil. <clinit>(HibernateUtil.java:16)
com.zel.web.struts.action.LoginAction.execute(LoginAction.java:51)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803) 下面是我创建students表和specialty表的SQL语句：
*****************************************
       specialty表：
CREATE TABLE specialty(
speid varchar(32) NOT NULL,
spename varchar(50) NOT NULL,
PRIMARY KEY (spename)
)
       students表（用specialty表的spename作为外键）：
CREATE TABLE students(
name varchar(32) default NULL,
stunumber varchar(32) NOT NULL,
password varchar(32) default NULL,
spe_name varchar(32) NOT NULL,
PRIMARY KEY (stunumber),
CONSTRAINT specialty_namefk FOREIGN KEY(spe_name)REFERENCES specialty(spename))
*******************************************************************************************
下面是我的Specialty.hbm.xml文件:
******************************
<?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.zel.domain.Specialty" table="specialty" catalog="examesystem">
         <id name="spename" type="java.lang.String">
             <column name="spename" length="50" />
             <generator class="assigned" />
         </id>
         <property name="speid" type="java.lang.String">
             <column name="speid" length="32" not-null="true" />
         </property>
         <set name="students" inverse="true">
             <key>
                 <column name="spe_name" length="32" not-null="true" />
             </key>
             <one-to-many class="com.zel.domain.Students" />
         </set>
     </class>
</hibernate-mapping>
*******************************************************************************************
下面是Students.hbm.xml文件:
**************************
<?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.zel.domain.Students" table="students" catalog="examesystem">
         <id name="stunumber" type="java.lang.String">
             <column name="stunumber" length="32" />
             <generator class="assigned" />
         </id>
         <many-to-one name="specialty" class="com.zel.domain.Specialty" fetch="select">
             <column name="spe_name" length="32" not-null="true" />
         </many-to-one>
         <property name="name" type="java.lang.String">
             <column name="name" length="32" />
         </property>
         <property name="password" type="java.lang.String">
             <column name="password" length="32" />
         </property>
         <set name="subjectivedones" inverse="true">
             <key>
                 <column name="sd_stu_number" length="32" not-null="true" />
             </key>
             <one-to-many class="com.zel.domain.Subjectivedone" />
         </set>
         <set name="results" inverse="true">
             <key>
                 <column name="res_stunumber" length="32" not-null="true" />
             </key>
             <one-to-many class="com.zel.domain.Result" />
         </set>
     </class>
</hibernate-mapping>
**************************************************************************************
下面是com.zel.domain包中的Students.java类:
****************************************
package com.zel.domain;
import com.zel.dao.DAOFactory;
import com.zel.dao.SpecialtyDAO;
public class Students {
private String stunumber;
private String name;
private String password;
private String spe_name;
Specialty specialty;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getSpe_name() {
return spe_name;
}
public void setSpe_name(String spe_name) {
SpecialtyDAO speDao=DAOFactory.getInstance().createSpecialtyDAO();
Specialty spe=speDao.getSpecialtyByID(spe_name);
this.spe_name = spe.getSpename();
}
public String getStunumber() {
return stunumber;
}
public void setStunumber(String stunumber) {
this.stunumber = stunumber;
}
public Specialty getSpecialty() {
return specialty;
}
public void setSpecialty(Specialty specialty) {
this.specialty = specialty;
} }

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Hibernate中SessionFactory创建失败出现ExceptionInInitializerError异常和

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