XML Schemas util標簽處理常見的公用配置， 類似配置集合，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> 這樣就可以使用 <util:constant/> 對比一下使用前后： <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標簽包含所有在Spring的AOP的處理， 包括基于Spring本身的代理和與AspectJ AOP 框架整合的部分， 完整參考： 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標簽處理ApplicationContext?相關配置。也就是， 處理對終端用戶不是很重要的但是是系統本身需要處理的很多繁瑣工作的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 擴展