SessionFactory sf = hibernateTemplate.getSessionFactory();
          //session不是从事务中获取的、自己新创个、
          Session session = sf.openSession();
          
          
          session.getTransaction().begin();
          long s = System.currentTimeMillis();
          //循环保存、累积一起提交事务 time++

          session.getTransaction().commit();
          
          long e = System.currentTimeMillis();
          System.out.println("共执行了"+time+"行数据用时："+(e-s)+"ms");
            
          session.flush();
          session.clear();
          session.close();

   

<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
        <property name="sessionFactory" ref="sessionFactory"/>
        <property name="cacheQueries" value="true"/>
        <property name="fetchSize" value="100"/>
        <property name="maxResults" value="10000"/>
    </bean>

    <bean id="dataSource"
          class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
        <property name="driverClass">
            <value>${c3p0.driverClass}</value>
        </property>
        <property name="jdbcUrl">
            <value>${c3p0.jdbcUrl}</value>
        </property>
        <property name="user">
            <value>${c3p0.user}</value>
        </property>
        <property name="password">
            <value>${c3p0.password}</value>
        </property>
        <property name="minPoolSize">
            <value>5</value>
        </property>
        <property name="maxPoolSize">
            <value>50</value>
        </property>
        <property name="initialPoolSize">
            <value>5</value>
        </property>
        <property name="maxIdleTime">
            <value>10</value>
        </property>
        <!--最大连接数后一次取多少-->
        <property name="acquireIncrement">
            <value>5</value>
        </property>
        <property name="acquireRetryAttempts">
            <value>30</value>
        </property>
        <property name="acquireRetryDelay">
            <value>1000</value>
        </property>
        <property name="testConnectionOnCheckin">
            <value>true</value>
        </property>
        <property name="automaticTestTable">
            <value>conn_test</value>
        </property>
        <property name="idleConnectionTestPeriod">
            <value>60</value>
        </property>
        <property name="checkoutTimeout">
            <value>100</value>
        </property>


        <property name="numHelperThreads">