配置我的第一个hibernate程序时遇到问题，但是我在这个过程的最后一步陷入困境。 这是堆栈跟踪：
JCheckBoxMenuItem我的映射文件（Student.hbm.xml）：
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.MouseEvent;
import javax.swing.Action;
import javax.swing.Icon;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class Test {
public static void main(String[] args) {
new Test();
}
public Test() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
JMenuBar mb = new JMenuBar();
JMenu menu = new JMenu("Lots-o-stuff");
mb.add(menu);
menu.add(new MyMenuItem("Apples"));
menu.add(new MyMenuItem("Pears"));
menu.add(new MyMenuItem("Bananas"));
JFrame frame = new JFrame("Testing");
frame.setJMenuBar(mb);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class TestPane extends JPanel {
public TestPane() {
}
@Override
public Dimension getPreferredSize() {
return new Dimension(200, 200);
}
}
public class MyMenuItem extends JCheckBoxMenuItem {
public MyMenuItem() {
}
public MyMenuItem(Icon icon) {
super(icon);
}
public MyMenuItem(String text) {
super(text);
}
public MyMenuItem(Action a) {
super(a);
}
public MyMenuItem(String text, Icon icon) {
super(text, icon);
}
public MyMenuItem(String text, boolean b) {
super(text, b);
}
public MyMenuItem(String text, Icon icon, boolean b) {
super(text, icon, b);
}
@Override
protected void processMouseEvent(MouseEvent evt) {
if (evt.getID() == MouseEvent.MOUSE_RELEASED && contains(evt.getPoint())) {
doClick();
setArmed(true);
} else {
super.processMouseEvent(evt);
}
}
}
}
我的hibernate配置文件（hibernate.cfg.xml）：
Dec 01, 2015 6:54:34 PM org.hibernate.cfg.Environment <clinit>
INFO: Hibernate 3.5.6-Final
Dec 01, 2015 6:54:34 PM org.hibernate.cfg.Environment <clinit>
INFO: hibernate.properties not found
Dec 01, 2015 6:54:34 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: Bytecode provider name : javassist
Dec 01, 2015 6:54:34 PM org.hibernate.cfg.Environment <clinit>
INFO: using JDK 1.4 java.sql.Timestamp handling
Dec 01, 2015 6:54:34 PM org.hibernate.cfg.Configuration configure
INFO: configuring from resource: hibernate.cfg.xml
Dec 01, 2015 6:54:34 PM org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: Configuration resource: hibernate.cfg.xml
Dec 01, 2015 6:54:34 PM org.hibernate.cfg.Configuration addResource
INFO: Reading mappings from resource : edu/aspire/li/Student.hbm.xml
Dec 01, 2015 6:54:34 PM org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues
INFO: Mapping class: edu.aspire.li.Student -> STUDENT
Dec 01, 2015 6:54:34 PM org.hibernate.cfg.Configuration doConfigure
INFO: Configured SessionFactory: null
Dec 01, 2015 6:54:34 PM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: Using Hibernate built-in connection pool (not for production use!)
Dec 01, 2015 6:54:34 PM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: Hibernate connection pool size: 20
Dec 01, 2015 6:54:34 PM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: autocommit mode: false
Dec 01, 2015 6:54:34 PM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: using driver: oracle.jdbc.OracleDriver at URL: jdbc:oracle:thin:@localhost:1521:XE
Dec 01, 2015 6:54:34 PM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: connection properties: {user=system, password=****, autocommit=false}
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: RDBMS: Oracle, version: Oracle Database 11g Release 11.1.0.0.0 - Production
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JDBC driver: Oracle JDBC driver, version: 10.2.0.1.0XE
Dec 01, 2015 6:54:35 PM org.hibernate.dialect.resolver.StandardDialectResolver resolveDialectInternal
WARNING: Oracle 11g is not yet fully supported; using 10g dialect
Dec 01, 2015 6:54:35 PM org.hibernate.dialect.Dialect <init>
INFO: Using dialect: org.hibernate.dialect.Oracle10gDialect
Dec 01, 2015 6:54:35 PM org.hibernate.engine.jdbc.JdbcSupportLoader useContextualLobCreation
INFO: Disabling contextual LOB creation as createClob() method threw error : java.lang.reflect.InvocationTargetException
Dec 01, 2015 6:54:35 PM org.hibernate.transaction.TransactionFactoryFactory buildTransactionFactory
INFO: Transaction strategy: org.hibernate.transaction.JDBCTransactionFactory
Dec 01, 2015 6:54:35 PM org.hibernate.transaction.TransactionManagerLookupFactory getTransactionManagerLookup
INFO: No TransactionManagerLookup configured (in JTA environment, use of read-write or transactional second-level cache is not recommended)
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Automatic flush during beforeCompletion(): disabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Automatic session close at end of transaction: disabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JDBC batch size: 15
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JDBC batch updates for versioned data: disabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Scrollable result sets: enabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JDBC3 getGeneratedKeys(): disabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Connection release mode: auto
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Default batch fetch size: 1
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Generate SQL with comments: enabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Order SQL updates by primary key: disabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Order SQL inserts for batching: disabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory createQueryTranslatorFactory
INFO: Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory
Dec 01, 2015 6:54:35 PM org.hibernate.hql.ast.ASTQueryTranslatorFactory <init>
INFO: Using ASTQueryTranslatorFactory
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Query language substitutions: {}
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JPA-QL strict compliance: disabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Second-level cache: enabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Query cache: disabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory createRegionFactory
INFO: Cache region factory : org.hibernate.cache.impl.NoCachingRegionFactory
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Optimize cache for minimal puts: disabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Structured second-level cache entries: disabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Echoing all SQL to stdout
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Statistics: disabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Deleted entity synthetic identifier rollback: disabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Default entity-mode: pojo
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Named query checking : enabled
Dec 01, 2015 6:54:35 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Check Nullability in Core (should be disabled when Bean Validation is on): enabled
Dec 01, 2015 6:54:35 PM org.hibernate.impl.SessionFactoryImpl <init>
INFO: building session factory
Exception in thread "main" org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
at org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:110)
at org.hibernate.tuple.entity.EntityTuplizerFactory.constructDefaultTuplizer(EntityTuplizerFactory.java:135)
at org.hibernate.tuple.entity.EntityEntityModeToTuplizerMapping.<init>(EntityEntityModeToTuplizerMapping.java:80)
at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:323)
at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:475)
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:297)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1385)
at edu.aspire.daos.InsertStudent.main(InsertStudent.java:15)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:107)
... 9 more
Caused by: org.hibernate.PropertyNotFoundException: Could not find a getter for sname in class edu.aspire.li.Student
at org.hibernate.property.BasicPropertyAccessor.createGetter(BasicPropertyAccessor.java:328)
at org.hibernate.property.BasicPropertyAccessor.getGetter(BasicPropertyAccessor.java:321)
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:158)
at org.hibernate.tuple.entity.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:77)
... 14 more
和我的InsertStudent类：
<?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="edu.aspire.li.Student" table="STUDENT">
<!-- id property -->
<id name="sno" column="SNO" type="integer" >
<!-- Primary key generator class -->
<generator class="assigned"/>
</id>
<!-- common properties -->
<property name ="sname" column="SNAME" type="string" length="100"/>
<property name ="email" column="EMAIL" type="string" length="100"/>
<property name ="mobile" column="MOBILE" type="long" not-null="true"/>
</class>
</hibernate-mapping>
我将我的学生班，student.hbm.xml放在edu.aspire.li中，我的插入学生班在edu.aspire.daos中，我的hibernate.cfg.xml放在默认包中。
提前致谢。
答案 0 :(得分：2)
使用JDK11运行Spring Boot 2.0.5时出现此错误。要修复它，我必须更新javassist库版本（Gradle是我的构建工具）：
compile('org.javassist:javassist:3.23.1-GA') {force = true}
有关迁移到JDK11的更多信息，我发现this博客文章很有用。或者，upgrading to Spring Boot to 2.1 will fix this issue。
答案 1 :(得分：1)
您是否在JDK 11上运行Spring Boot？ 当我切换到JDK 11时遇到了同样的问题。 我通过更改Spring Boot版本来解决它。
答案 2 :(得分：0)
感谢@ cpierceworld，我宣布我的学生为
package edu.aspire.li;
import java.io.Serializable;
public class Student implements Serializable{
private int sno;
private String name;
private String email;
private long mobile;
public Student(){
System.out.println("This is to construct student");
}
public int getSno() {
return sno;
}
public void setSno(int sno) {
this.sno = sno;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public long getMobile() {
return mobile;
}
public void setMobile(long mobile) {
this.mobile = mobile;
}
}
与student.hbm.xml存在名称冲突
<property name ="sname" column="SNAME" type="string" length="100"/>