sql脚本:

-- Create table
drop table T_PERSON;
create table T_PERSON
(
id number(10) PRIMARY KEY,
name VARCHAR2(20),
password VARCHAR2(30),
registtime DATE,
userlevel VARCHAR2(10),
extend1 VARCHAR2(20),
extend2 VARCHAR2(20),
extend3 VARCHAR2(20)
)

hibernate.cfg.xml配置文件:

<?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"> <!-- Generated by MyEclipse Hibernate Tools. -->
<hibernate-configuration> <session-factory>
<property name="dialect">org.hibernate.dialect.Oracle9Dialect</property>
<property name="connection.url">jdbc:oracle:thin:@localhost:1521:xe</property>
<property name="connection.username">icdwf</property>
<property name="connection.password">icdwf</property>
<property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property> <mapping resource="com/study/hibernate/domain/Person.hbm.xml"/>
</session-factory> </hibernate-configuration>

hibernate映射文件:

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<!--
Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping >
<class name="com.study.hibernate.domain" table="t_person"> <id column="id" name="id" type="integer">
<generator class="sequence">
<param name="sequence">seq_person_id</param>
</generator>
</id>
<!--
<id column="id" name="id" type="integer">
<generator class="native">
</generator>
</id> <id column="id" name="id" type="integer">
<generator class="increment">
</generator>
</id>
--> <property name="name" column="name" type="string"></property>
<property name="password" column="password" type="string"></property>
<property name="userLevel" column="userLevel" type="string"></property>
<property name="registTime" column="registTime" type="date"></property>
<property name="extend1" column="extend1" type="string"></property>
<property name="extend2" column="extend2" type="string"></property>
<property name="extend3" column="extend3" type="string"></property>
<!--
<set name="address" table="address"> <key column="personId"></key>
<element column="address" type="string" length="50"></element> </set>
-->
</class>
</hibernate-mapping>

Person实体类:

package com.study.hibernate.domain;

import java.util.Date;

public class Person
{
private int id;
private String name;
private String password;
private String userLevel;
private Date registTime;
private String extend1;
private String extend2;
private String extend3; public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
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 getUserLevel() {
return userLevel;
}
public void setUserLevel(String userLevel) {
this.userLevel = userLevel;
}
public Date getRegistTime() {
return registTime;
}
public void setRegistTime(Date registTime) {
this.registTime = registTime;
}
public String getExtend1() {
return extend1;
}
public void setExtend1(String extend1) {
this.extend1 = extend1;
}
public String getExtend2() {
return extend2;
}
public void setExtend2(String extend2) {
this.extend2 = extend2;
}
public String getExtend3() {
return extend3;
}
public void setExtend3(String extend3) {
this.extend3 = extend3;
} }

HibernateSessionFactory获取Session的类:

package com.study.hibernate.util;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.cfg.Configuration;
import org.hibernate.SessionFactory; /**
* Configures and provides access to Hibernate sessions, tied to the
* current thread of execution. Follows the Thread Local Session
* pattern, see {@link http://hibernate.org/42.html }.
*/
public class HibernateSessionFactory { /**
* Location of hibernate.cfg.xml file.
* Location should be on the classpath as Hibernate uses
* #resourceAsStream style lookup for its configuration file.
* The default classpath location of the hibernate config file is
* in the default package. Use #setConfigFile() to update
* the location of the configuration file for the current session.
*/
private static String CONFIG_FILE_LOCATION = "/hibernate.cfg.xml";
private static final ThreadLocal<Session> threadLocal = new ThreadLocal<Session>();
private static Configuration configuration = new Configuration();
private static SessionFactory sessionFactory;
private static String configFile = CONFIG_FILE_LOCATION; static {
try {
System.out.println("静态初始块");
configuration.configure(configFile);
sessionFactory = configuration.buildSessionFactory();
} catch (Exception e) {
System.err
.println("%%%% Error Creating SessionFactory %%%%");
e.printStackTrace();
}
}
private HibernateSessionFactory() {
} /**
* Returns the ThreadLocal Session instance. Lazy initialize
* the <code>SessionFactory</code> if needed.
*
* @return Session
* @throws HibernateException
*/
public static Session getSession() throws HibernateException {
System.out.println("获取Session");
Session session = (Session) threadLocal.get(); if (session == null || !session.isOpen()) {
if (sessionFactory == null) {
rebuildSessionFactory();
}
session = (sessionFactory != null) ? sessionFactory.openSession()
: null;
threadLocal.set(session);
} return session;
} /**
* Rebuild hibernate session factory
*
*/
public static void rebuildSessionFactory() {
try {
configuration.configure(configFile);
sessionFactory = configuration.buildSessionFactory();
} catch (Exception e) {
System.err
.println("%%%% Error Creating SessionFactory %%%%");
e.printStackTrace();
}
} /**
* Close the single hibernate session instance.
*
* @throws HibernateException
*/
public static void closeSession() throws HibernateException {
Session session = (Session) threadLocal.get();
threadLocal.set(null); if (session != null) {
session.close();
}
} /**
* return session factory
*
*/
public static SessionFactory getSessionFactory() {
return sessionFactory;
} /**
* return session factory
*
* session factory will be rebuilded in the next call
*/
public static void setConfigFile(String configFile) {
HibernateSessionFactory.configFile = configFile;
sessionFactory = null;
} /**
* return hibernate configuration
*
*/
public static Configuration getConfiguration() {
return configuration;
} }

Test类:

package com.study.hibernate.text;

import java.util.Date;

import org.hibernate.Session;
import org.hibernate.Transaction; import com.study.hibernate.domain.Person;
import com.study.hibernate.util.HibernateSessionFactory; public class HibernateTest { public static void main(String[] args) { Session session = HibernateSessionFactory.getSession();
System.out.println(session);
Transaction transaction = session.beginTransaction();
//transaction.begin();
Person person = new Person();
person.setName("Ljb");
person.setPassword("456123");
person.setRegistTime(new Date());
person.setUserLevel("001"); session.save(person);
transaction.commit();
HibernateSessionFactory.closeSession();
} }

运行结果失败,报下面的错:

%%%% Error Creating SessionFactory %%%%
org.hibernate.InvalidMappingException: Could not parse mapping document from resource com/study/hibernate/domain/Person.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:616)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1635)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1603)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1582)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1556)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1476)
at com.study.hibernate.util.HibernateSessionFactory.rebuildSessionFactory(HibernateSessionFactory.java:72)
at com.study.hibernate.util.HibernateSessionFactory.getSession(HibernateSessionFactory.java:56)
at com.study.hibernate.text.HibernateTest.main(HibernateTest.java:15)
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from invalid mapping
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:549)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:613)
... 8 more
Caused by: org.xml.sax.SAXParseException: Document is invalid: no grammar found.
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:236)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:172)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:382)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:316)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:177)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(XMLNSDocumentScannerImpl.java:779)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1794)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1242)
at org.dom4j.io.SAXReader.read(SAXReader.java:465)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:546)
... 9 more

据说是*.hbm.xml文件里的:

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

需要网络方可访问,我这网络的确有限制!

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