SSM：application.xml的配置

头部

<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:p="http://www.springframework.org/schema/p"  
        xmlns:tx="http://www.springframework.org/schema/tx"  
        xmlns:context="http://www.springframework.org/schema/context"  
        xsi:schemaLocation="   
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd   
            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd   
            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd 
            http://www.springframework.org/schema/context 
            http://www.springframework.org/schema/context/spring-context.xsd">

1.扫描包Service

<!-- @Service扫描 -->
<context:component-scan base-package="cn.item.service"></context:component-scan>

 2.配置数据库连接池

    <!-- 加载配置文件 -->
	    <context:property-placeholder location="classpath:db.properties" />
	<!-- 数据库连接池 -->
	<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
		destroy-method="close">
		<property name="driverClassName" value="${jdbc.driver}" />
		<property name="url" value="${jdbc.url}" />
		<property name="username" value="${jdbc.username}" />
		<property name="password" value="${jdbc.password}" />
		<property name="maxActive" value="10" />
		<property name="maxIdle" value="5" />
	</bean>

3.配置SqlSessionFactoryBean

    <!-- mapper配置，mybatis的SqlSessionFactoryBean -->
	<!-- 让spring管理sqlsessionfactory 使用mybatis和spring整合包中的 -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- 数据库连接池 -->
		<property name="dataSource" ref="dataSource" />
		<!-- 加载mybatis的全局配置文件 -->
		<property name="configLocation" value="classpath:SqlMapConfig.xml" />
	</bean>

4.mapping（我平常习惯Dao），数据访问层，

        <!-- 配置Mapper扫描器 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="cn.item.dao"/>
	</bean>

5.事务管理器

        <!-- 事务管理器 -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<!-- 数据源 -->
		<property name="dataSource" ref="dataSource" />
	</bean>

6.通知

        <!-- 通知 -->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<!-- 传播行为 -->
			<tx:method name="save*" propagation="REQUIRED" />
			<tx:method name="insert*" propagation="REQUIRED" />
			<tx:method name="delete*" propagation="REQUIRED" />
			<tx:method name="update*" propagation="REQUIRED" />
			<tx:method name="find*" propagation="SUPPORTS" read-only="true" />
			<tx:method name="get*" propagation="SUPPORTS" read-only="true" />
		</tx:attributes>
	</tx:advice>

7.aop切面

        <!-- 切面 -->
	<aop:config>
		<aop:advisor advice-ref="txAdvice"
			pointcut="execution(* cn.item.service.*.*(..))" />
	</aop:config>

 8.文件上传需要用到的配置

<!-- 文件上传 -->
	<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
  		<!-- 上传文件大小上限，单位为字节（10MB） -->
  		<property name="maxUploadSize">
  			<value>10485760</value>
		</property>
		<!-- 请求的编码格式，必须和jSP的pageEncoding属性一致，以便正确读取表单的内容，默认为ISO-8859-1 -->
		<property name="defaultEncoding">
			<value>UTF-8</value>
		</property>
	</bean>