Spring分散配置

web.xml

<!-- 监听Log4j -->
	<listener>
		<listener-class>
			org.springframework.web.util.Log4jConfigListener
		</listener-class>
	</listener>
	<context-param>
		<param-name>log4jConfigLocation</param-name>
		<param-value>WEB-INF/log4j.properties</param-value>
	</context-param>
	<context-param>
		<param-name>webAppRootKey</param-name>
		<param-value>netctoss.root</param-value>
	</context-param>
	 <!-- 监听Spring文件 -->
	<listener>
		<listener-class>
			org.springframework.web.context.ContextLoaderListener
		</listener-class>
	</listener>

 <!-- 在这里import其他的Spring配置文件,那么在web.xml中只监听本文件就可以了 -->
   <import resource="springController.xml" />

	<bean id="propertyPlaceholderConfigurer"
		class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<property name="order" value="1"/>
		<property name="locations">
			<list>
                  <!-- 
                     当database.properties放在src目录 下就像下面那样写
                     classpath:/database.properties
                   --> 			
				<value> classpath:/com/huanglq/properties/database.properties</value>
			</list>
		</property>
	</bean>
	
	<!-- destroy-method="close"一用完就释放资源 -->
	<bean id="dataSource"
		class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
		<property name="driverClassName" value="${db.driver}">
		</property>
		<property name="url" value="${db.url}"></property>
		<property name="username" value="${db.username}"></property>
		<property name="password" value="${db.password}"></property>
	</bean>

spring配置文件把hibernate.cfg.xml整合进来(eg):

  <bean id="sessionFactory"  
        class="org.springframework.orm.hibernate.LocalSessionFactoryBean">  
     <property name="mappingLocations">  
        <value>classpath*:/**/*.hbm.xml</value>  
      </property>  
       <property name="mappingJarLocations">  
            <list>  
             <value>WEB-INF/lib/xxx-core.jar</value>  
            <value>WEB-INF/lib/xxx-report.jar</value>  
          </list>  
    </property>  
  </bean>  

Spring的applicationContext.xml的例子：

<?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-2.0.xsd"
default-lazy-init="true">

	<!-- 在这里import其他的Spring配置文件,那么在web.xml中只监听本文件就可以了 -->
	<import resource="springController.xml" />
	<bean id="propertyPlaceholderConfigurer"
		class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<property name="order" value="1" />
		<property name="locations">
			<list>
				<!-- 
					当database.properties放在src目录 下就像下面那样写
					classpath:/database.properties
				-->
				<value>
					classpath:/com/huanglq/properties/database.properties
				</value>
			</list>
		</property>
	</bean>

	<!-- destroy-method="close"
BasicDataSource提供了close()方法关闭数据源，所以必须设定destroy-method=”close”属性， 以便Spring容器关闭时，数据源能够正常关闭 -->
	<bean id="dataSource"
		class="org.apache.commons.dbcp.BasicDataSource"
		destroy-method="close">
		<property name="driverClassName" value="${db.driver}">
		</property>
		<property name="url" value="${db.url}"></property>
		<property name="username" value="${db.username}"></property>
		<property name="password" value="${db.password}"></property>
	</bean>

	<!--  
		<bean id="dataSource"
		class="org.apache.commons.dbcp.BasicDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver">
		</property>
		<property name="url" value="jdbc:mysql://127.0.0.1:3306/springtrain"></property>
		<property name="username" value="root"></property>
		<property name="password" value="root"></property>
		</bean>
	-->
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<property name="dataSource">
			<ref bean="dataSource" />
		</property>
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.dialect">
					org.hibernate.dialect.MySQLDialect
				</prop>
				<prop key="hibernate.show_sql">true</prop>
			</props>
		</property>
		<!-- 解决过多的POJO -->
		<property name="mappingDirectoryLocations">
			<list>
				<value>classpath:/com/huanglq/model</value>
			</list>
		</property>
	</bean>

	<bean id="transactionManager"
		class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

	<!--在这里abstract="true"属性比较有用,他把target属性赋予了代理事务的目标类  -->
	<bean id="baseTransactionProxy"
		class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"
		abstract="true">
		<property name="transactionManager" ref="transactionManager" />
		<property name="transactionAttributes">
			<props>
				<prop key="add*">PROPAGATION_REQUIRED</prop>
				<prop key="update*">PROPAGATION_REQUIRED</prop>
				<prop key="modify*">PROPAGATION_REQUIRED</prop>
				<prop key="sel*">PROPAGATION_REQUIRED,readOnly</prop>
				<prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
				<prop key="find*">PROPAGATION_REQUIRED,readOnly</prop>
			</props>
		</property>
	</bean>

	<bean id="studentDao" class="com.huanglq.dao.StudentDaoImpl">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

	<bean id="studentService"
		class="com.huanglq.service.StudentServiceImpl">
		<property name="studentDao" ref="studentDao" />
	</bean>

	<!-- 在DAO级别的代理事务 -->
	<bean id="studentDaoTransactionProxy"
		parent="baseTransactionProxy">
		<property name="target" ref="studentDao" />
	</bean>

	<bean id="courseDao" class="com.huanglq.dao.CourseDaoImpl">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

	<bean id="courseService"
		class="com.huanglq.service.CourseServiceImpl">
		<property name="studentService" ref="studentService" />
		<property name="courseDao" ref="courseDao" />
	</bean>

	<bean id="courseDaoTransactionProxy"
		parent="baseTransactionProxy">
		<property name="target" ref="courseDao" />
	</bean>

	<bean id="instructorDao"
		class="com.huanglq.dao.InstructorDaoImpl">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

	<bean id="instructorService"
		class="com.huanglq.service.InstructorServiceImpl">
		<property name="instructorDao" ref="instructorDao" />
	</bean>

	<bean id="instructorDaoTransactionProxy"
		parent="baseTransactionProxy">
		<property name="target" ref="courseDao" />
	</bean>
</beans>

评论

2 楼 qsrock 2008-10-16  

mappingJarLocations：指定加载的映射文件在jar文件中 ，
当时也是看书的写的，现在看来好像没有用
具体可参考http://blog.csdn.net/yuansicau/archive/2008/09/03/2874165.aspx

1 楼 songjoyce 2008-09-23  

配置这个有什么作用 <property name="mappingJarLocations">