cvc-complex-type.3.2.2: Attribute 'singleton' is n

spring2與spring1的單例模式的配置區別
Spring 1.*
<bean id="hibernateSessionFactory" class="org.hibernate.admin.component.HibernateSessionFactory" init-method="init" destroy-method="dispose" singleton="true">


Spring 2.0
spring-beans-2.0.dtd/xsd does not support singleton="true"/"false" anymore. Use scope="singleton/"prototype" instead!

<bean id="hibernateSessionFactory" class="org.hibernate.admin.component.HibernateSessionFactory" init-method="init" destroy-method="dispose" scope="singleton">

如果在spring2.0中使用spring1.*的單例屬性即會報錯:org.xml.sax.SAXParseException: cvc-complex-type.3.2.2: Attribute 'singleton' is not allowed to appear in element 'bean'.


在spring2.0中,bean没有“singleton”这个属性,而是在“scope”中对它进行设定。“scope”可以设定为 “singleton”和“prototype”默认情况下是“singleton”即和原先的“singleton=true”性质一样,如果要实现单例模式则将“scope”设定为“prototype”,即和原先版本的“singleton=false”一样。

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