Hibernate 支持 c3p0 连接池

<property name="hibernateProperties">
            <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
            <prop key="hibernate.show_sql">false</prop>
            <prop key="hibernate.connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</prop>
            <prop key="hibernate.c3p0.max_size">20</prop>
            <prop key="hibernate.c3p0.min_size">5</prop>
            <prop key="hibernate.c3p0.timeout">15000</prop>
            <prop key="hibernate.c3p0.max_statements">100</prop>
            <prop key="hibernate.c3p0.idle_test_period">120</prop>
            <prop key="hibernate.c3p0.acquire_increment">2</prop>
        </props>
</property>