<bean id="UserService" class="service.UserService">
<property name="userDAO">
<ref bean="UsersDAO"/>
</property>
</bean>
<bean name="/login" class="org.spell.action.LoginAction" singleton="false">
<property name="userService">
<ref bean="UserService"/>
</property>
</bean>
<bean name="/register" class="org.spell.action.RegisterAction" singleton="false">
<property name="userService">
<ref bean="UserService"/>
</property>
</bean>
</beans>
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在配置的時候 cp30的屬性的名字必須是 ''driverClass' , 'jdbcUrl', 'user' , 'password' 而 <property name="properties">的名字也必須是“properties”,另外cp30配置文件的屬性名也都是諸如:"c3p0.minPoolSize"、"hc3p0.maxPoolSize"等等