实在是没有办法了，就是找不到哪里出错了！！！求大神！！！！
本人菜鸟，看张龙老师的视频学习hibernate。
按照视频写的代码，结果只对了一半。
我是用sql server 2005+tomcat 7.0+hibernate 4.10+struts 2.3 搭建的。
代码比较杂，还请各位耐心点。
注册页面代码，register.jsp
<form action="savePerson.action">
username:<input type="text" name="username" size="20"><br>
password:<input type="password" name="password" size="20"><br>
age:<input type="text" name="age" size="20"><br>
<input type="submit" value="submit">
</form>
struts.xml 代码
<package name="hibernate" extends="struts-default">
<action name="savePerson" class="com.shengsiyuan.action.PsersonAction" method="savePerson">
<result name="success">/result.jsp</result>
</action>
PsersonAction.java 代码
package com.shengsiyuan.action;
import com.opensymphony.xwork2.ActionSupport;
import com.shengsiyuan.modle.Person;
import com.shengsiyuan.service.PersonService;
import com.shengsiyuan.service.PersonServiceImpl;
public class PsersonAction extends ActionSupport {
/**
*
*/
private static final long serialVersionUID = 1L;
private String username;
private String password;
private int age;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String savePerson() throws Exception{
Person person=new Person();
person.setUsername(username);
person.setPassword(password);
person.setAge(age);
java.sql.Date registerDate=new java.sql.Date(new java.util.Date().getTime());
person.setRegisterDate(registerDate);
PersonService personService=new PersonServiceImpl();
personService.savePerson(person);
return SUCCESS;
}
}
Person.java 代码
package com.shengsiyuan.modle;
import java.util.Date;
public class Person {
private Integer id;
private String username;
private String password;
private Integer age;
private Date registerDate;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public Date getRegisterDate() {
return registerDate;
}
public void setRegisterDate(Date registerDate) {
this.registerDate = registerDate;
}
PersonServiceImpl.java 代码
package com.shengsiyuan.service;
import com.shengsiyuan.dao.PersonDAO;
import com.shengsiyuan.modle.Person;
import com.shengsiyuan.dao.PersonDAOImpl;
public class PersonServiceImpl implements PersonService
{
@Override
public void savePerson(Person person)
{
PersonDAO personDAO=new PersonDAOImpl();
personDAO.savePerson(person);
}
}
PersonDAOImpl.java 代码
package com.shengsiyuan.dao;
import org.hibernate.Session;
import org.hibernate.Transaction;
import com.shengsiyuan.modle.Person;
import com.shengsiyuan.util.HibernateUtil;
import com.shengsiyuan.dao.PersonDAO;
public class PersonDAOImpl implements PersonDAO
{
@Override
public void savePerson(Person person)
{
Session session=HibernateUtil.openSession();
Transaction tx=session.beginTransaction();
try
{
session.save(person);
}
catch(Exception ex)
{
if(null!=tx)
{
tx.rollback();
}
}
finally
{
HibernateUtil.close(session);
}
}
}
HibernateUtil.java 代码
package com.shengsiyuan.util;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
@SuppressWarnings("deprecation")
public class HibernateUtil
{
private static SessionFactory sessionFactory;
static
{
try
{
sessionFactory=new Configuration().configure().buildSessionFactory();
}
catch(Exception ex)
{
ex.printStackTrace();
}
}
public static Session openSession()
{
Session session =sessionFactory.openSession();
return session;
}
public static void close(Session session)
{
if(null!=session)
{
session.close();
}
}
}
服务器端输出如下代码
八月 09, 2012 3:13:20 下午 org.apache.catalina.startup.SetContextPropertiesRule begin
警告: [SetContextPropertiesRule]{Context} Setting property 'source' to 'org.eclipse.jst.jee.server:webDemo' did not find a matching property.
八月 09, 2012 3:13:20 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["http-bio-8080"]
八月 09, 2012 3:13:20 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["ajp-bio-8009"]
八月 09, 2012 3:13:20 下午 org.apache.catalina.startup.Catalina start
信息: Server startup in 2807 ms
八月 09, 2012 3:13:31 下午 org.hibernate.annotations.common.Version <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {4.0.1.Final}
八月 09, 2012 3:13:31 下午 org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.1.0.Final}
八月 09, 2012 3:13:31 下午 org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
八月 09, 2012 3:13:31 下午 org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
八月 09, 2012 3:13:31 下午 org.hibernate.cfg.Configuration configure
INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml
八月 09, 2012 3:13:31 下午 org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: HHH000040: Configuration resource: /hibernate.cfg.xml
八月 09, 2012 3:13:31 下午 org.hibernate.cfg.Configuration addResource
INFO: HHH000221: Reading mappings from resource: Person.hbm.xml
八月 09, 2012 3:13:33 下午 org.hibernate.cfg.Configuration doConfigure
INFO: HHH000041: Configured SessionFactory: null
八月 09, 2012 3:13:34 下午 org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator c3p0ProviderPresent
WARN: HHH000022: c3p0 properties were encountered, but the org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider provider class was not found on the classpath; these properties are going to be ignored.
八月 09, 2012 3:13:34 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000402: Using Hibernate built-in connection pool (not for production use!)
八月 09, 2012 3:13:34 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 20
八月 09, 2012 3:13:34 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000006: Autocommit mode: false
八月 09, 2012 3:13:34 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000401: using driver [com.microsoft.sqlserver.jdbc.SQLServerDriver] at URL [jdbc:sqlserver://localhost:1433;DatabaseName=hibernate]
八月 09, 2012 3:13:34 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000046: Connection properties: {user=sa, password=****}
八月 09, 2012 3:13:34 下午 org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.SQLServerDialect
八月 09, 2012 3:13:34 下午 org.hibernate.engine.jdbc.internal.LobCreatorBuilder useContextualLobCreation
INFO: HHH000423: Disabling contextual LOB creation as JDBC driver reported JDBC version [3] less than 4
八月 09, 2012 3:13:34 下午 org.hibernate.engine.transaction.internal.TransactionFactoryInitiator initiateService
INFO: HHH000399: Using default transaction strategy (direct JDBC transactions)
八月 09, 2012 3:13:34 下午 org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory <init>
INFO: HHH000397: Using ASTQueryTranslatorFactory
Hibernate: select max(id) from person
少了插入语句，数据库了没有数据
[解决办法]
事务好像没有提交吧
[解决办法]
断点调试下 看看在哪部出问题了、
首先看看 person这个对象里面的属性为空吗？
然后具体看看执行到哪个方法出现异常、
[解决办法]
构造方法没有，事务没有commit。
[解决办法]
在session.save(object)后调用transaction.commit()！！
[解决办法]
Transaction tx=session.beginTransaction();
try
{
session.save(person);
}
catch(Exception ex)
{
if(null!=tx)
{
tx.rollback();
}
}
finally
{
HibernateUtil.close(session);
}
首先你开启了事务但是在save的时候你没有提交事务，所以不能正常存储数据。事务是默认自动提交的，当你手动开始事务的时候要记得提交事务。
[解决办法]
建议你在学习hibernate之前先学习一下jdbc，这样能帮助你对框架的理解
