SpringMVC + MyBatis 配置文件

　　web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring.xml</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>*.action</url-pattern>
    </servlet-mapping>
</web-app>

　　

　　spring.xml

<?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"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc.xsd
       ">

       <!--扫描注解,目的就是对相关的javabean实例化-->
       <context:component-scan base-package="com.iotek"/>

       <!--启用springmvc的注解模式-->
       <mvc:annotation-driven />

       <!--DataSource-->
       <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
              <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
              <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/newsdb"></property>
              <property name="user" value="root"></property>
              <property name="password" value="root"></property>
              <!--连接池启动的时候默认创建的连接数量-->
              <property name="initialPoolSize" value="3"></property>
              <!--连接池最多可以管理的连接对象个数-->
              <property name="maxPoolSize" value="100"></property>
              <!--连接池中最多能够管理的statement对象-->
              <property name="maxStatements" value="1000"></property>
              <!--一旦连接池中现有的连接数量不够，每次增长的连接数目：5  ，但是连接池中的连接数量-->
              <!--最多不可超过maxPoolSize中设置的连接数目-->
              <property name="acquireIncrement" value="5"></property>
       </bean>

       <!--Factory-->
       <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
              <property name="dataSource" ref="dataSource"/>
              <!--配置mapper中使用的实体类别名-->
              <property name="typeAliasesPackage" value="com.iotek.entity"/>
              <!--mapper文件的路径
              classpath*:com/iotek/mapper/**/*.xml  : classpath,从源文件角度就是src，实际上是运行时候的classes目录
                     com.iotek.mapper包，以及它所有的子包里面的xml文件，都会认为是mapper文件
              -->
              <property name="mapperLocations" value="classpath*:com/iotek/mapper/**/*.xml"/>
       </bean>

       <!--
              DAO层位置的确定
       -->
       <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
              <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
              <!--指定dao接口的位置-->
              <property name="basePackage" value="com.iotek.dao"/>
       </bean>

       <!--TransactionManager-->
       <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
              <property name="dataSource" ref="dataSource"></property>
       </bean>

       <!--注解或AOP的方式使用声明式事务-->
       <tx:annotation-driven transaction-manager="txManager"></tx:annotation-driven>


</beans>

　　　　<tx:advice id="txAdvice" transaction-manager="transactionManager">
              <tx:attributes>
                     <tx:method name="create*"/>
                     <tx:method name="query*"/>
                     <tx:method name="update*"/>
                     <tx:method name="delete*"/>
              </tx:attributes>
       </tx:advice>

       <aop:config>
              <!--切面的配置 id表示切面的唯一id，ref表示切面的支持类-->
              <aop:pointcut id="operate" expression="execution(* com.iotek.service.*.*(..))"/><!--切点( 切入点)-->
              <aop:advisor advice-ref="txAdvice" pointcut-ref="operate"/>
       </aop:config>