<!-- - Application context definition for JPetStore’s business layer. - Contains bean references to the transaction manager and to the DAOs in - dataAccessContext-local/jta.xml (see web.xml’s "contextConfigLocation"). --> <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" xmlns:tx="http://www.springframework.org/schema/tx" 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 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> 這樣寫才對
2，配置文件可以使用多個屬性文件 <!-- Configurer that replaces ${...} placeholders with values from properties files --> <!-- (in this case, mail and JDBC related properties) --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>WEB-INF/mail.properties</value> <value>WEB-INF/jdbc.properties</value> </list> </property> </bean> 類是框架的。 里面包含兩個屬性文件，屬性文件里都是“key=value”這種形式的。這樣配置文件里就可以使用屬性文件里的key，使用方法 ${key},這樣轉(zhuǎn)移出屬性設(shè)置，維護起來比較方便。
