日期:2014-05-17  浏览次数:20585 次

求救???org.hibernate.TransactionException: Transaction not successfully started
在学习Hibernate
有个car的数据库,只有一个表basiccar
四个字段:
id,name,factory,date
我编写了POJO文件,也映射了,也写了Hibernate配置文件
POJO:
Java code

package basicCar.bean;

import java.util.Date;

public class BasicCar implements java.io.Serializable{
    private long id;
    private String name;
    private String factory;
    private Date date;
    public BasicCar(){
        
    }
    public BasicCar(String name,String factory,Date date){
        this.name = name;
        this.factory = factory;
        this.date = date;
    }
    public long getId() {
        return id;
    }
    public void setId(long id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getFactory() {
        return factory;
    }
    public void setFactory(String factory) {
        this.factory = factory;
    }
    public Date getDate() {
        return date;
    }
    public void setDate(Date date) {
        this.date = date;
    }
    
}




映射文件:
XML code

<hibernate-mapping>

<class name="basicCar.bean.BasicCar" table="basiccar">

    <id
        name="id"
        type="long"
        column="id"
    >
        <generator class="increment" />
    </id>

    <property name="name" type="java.lang.String" column="name" />
    <property name="factory" type="java.lang.String" column="factory" />
    <property name="date" type="date" column="date" />
    

</class>
</hibernate-mapping>


Hibernate;
XML code

<hibernate-configuration>

    <session-factory>
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.username">root</property>
        <property name="connection.password">1119</property> 
        <property name="connection.url">jdbc:mysql://localhost:3306/car</property>
        <property name="show_sql">true</property>
        
        <mapping resource="basicCar/bean/BasicCar.hbm.xml" />

    </session-factory>
</hibernate-configuration>



util:
Java code

package com.chuanjie56.util;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.cfg.Configuration;

public class HibernateSessionFactory {

    private static String CONFIG_FILE_LOCATION = "/hibernate.cfg.xml";

    @SuppressWarnings("unchecked")
    private static final ThreadLocal threadLocal = new ThreadLocal();

    private static final Configuration cfg = new Configuration();

    private static org.hibernate.SessionFactory sessionFactory;

    @SuppressWarnings