获取也不是没有积极的交易有效(Get is not valid without active tra

我有一个无法打开的Hibernate事务。

这是配置：

    <context:annotation-config />
    <context:component-scan base-package="com.cinebot" />
    <mvc:annotation-driven />
    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="packagesToScan">
            <list>
                <value>com.cinebot.db.entity</value>
            </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.HSQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
            </props>
        </property>
    </bean>

    <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

<tx:annotation-driven />

这是故障代码：

@Transactional
public static <T> T get(Class<T> classe, Serializable id) throws Exception {
    if(id==null) return null;
    T obj = (T) HibernateUtil.getSessionFactory().getCurrentSession().get(classe, id);
    return obj;
}

这是个例外：

org.hibernate.HibernateException: get is not valid without active transaction

这是一个例子entitiy：

package com.cinebot.db.entity;

// Generated 3-lug-2012 10.31.04 by Hibernate Tools 3.4.0.CR1

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

/**
 * Dettagli generated by hbm2java
 */
@Entity
@Table(name = "dettagli", catalog = "cinebot")
public class Dettagli implements java.io.Serializable {

    private static final long serialVersionUID = 1L;
    private String nome;
    private String valore;

    public Dettagli() {
    }

    public Dettagli(String nome) {
        this.nome = nome;
    }

    public Dettagli(String nome, String valore) {
        this.nome = nome;
        this.valore = valore;
    }

    @Id
    @Column(name = "nome", unique = true, nullable = false, length = 32)
    public String getNome() {
        return this.nome;
    }

    public void setNome(String nome) {
        this.nome = nome;
    }

    @Column(name = "valore", length = 65535)
    public String getValore() {
        return this.valore;
    }

    public void setValore(String valore) {
        this.valore = valore;
    }

}

我不明白为什么没有足够多的@Transactional注解为自动打开事务。我错过了什么？

谢谢

Answer 1:

根据该意见，您可以重新检查以下点（虽然我不建议使用相同）