XML Schemas util标签处理常见的公用配置， 类似配置集合，引用常量等。 要使用util，需要如下配置： <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd"> <!-- bean definitions here --> </beans> 这样就可以使用 <util:constant/> 对比一下使用前后： <bean id="..." class="..."> <property name="isolation"> <bean id="java.sql.Connection.TRANSACTION_SERIALIZABLE" class="org.springframework.beans.factory.config.FieldRetrievingFactoryBean" /> </property> </bean> <bean id="..." class="..."> <property name="isolation"> <util:constant static-field="java.sql.Connection.TRANSACTION_SERIALIZABLE"/> </property> </bean> 或者如下例子： <!-- creates a java.util.List instance with values loaded from the supplied 'sourceList' --> <bean id="emails" class="org.springframework.beans.factory.config.ListFactoryBean"> <property name="sourceList"> <list> <value>pechorin@hero.org</value> <value>raskolnikov@slums.org</value> <value>stavrogin@gov.org</value> <value>porfiry@gov.org</value> </list> </property> </bean> 使用后： <!-- creates a java.util.List instance with the supplied values --> <util:list id="emails"> <value>pechorin@hero.org</value> <value>raskolnikov@slums.org</value> <value>stavrogin@gov.org</value> <value>porfiry@gov.org</value> </util:list> aop 的Schedule aop标签包含所有在Spring的AOP的处理， 包括基于Spring本身的代理和与AspectJ AOP 框架整合的部分， 完整参考： Aspect Oriented Programming with Spring. 需要加入： <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"> <!-- bean definitions here --> </beans> 9.1.3 context的Schema context标签处理ApplicationContext 相关配置。也就是， 处理对终端用户不是很重要的但是是系统本身需要处理的很多繁琐工作的bean, 像BeanfactoryPostProcessors。 xml 配置： <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- bean definitions here --> </beans> <property-placeholder/> <annotation-config/> <component-scan/> <load-time-weaver/> <spring-configured/> <mbean-export/> 9.1.4 beans 的 schema <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="foo" class="x.y.Foo"> <meta key="cacheName" value="foo"/> <property name="name" value="Rick"/> </bean> </beans> 9.2 XML Schema 扩展