maven工程web层的spring-mybatis配置文档

1、配置数据库的链接

2、扫描mapper文件

3、spring与mybatis整合配置，扫描所有dao

4、对数据源进行事务管理

下面是例子：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-4.1.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-4.1.xsd
    http://www.springframework.org/schema/util
    http://www.springframework.org/schema/util/spring-util-4.1.xsd">

    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
        init-method="init" destroy-method="close">
        <property name="driverClassName">
            <value>${jdbc_driverClassName}</value>
        </property>
        <property name="url">
            <value>${jdbc_url}</value>
        </property>
        <property name="username">
            <value>${jdbc_username}</value>
        </property>
        <property name="password">
            <value>${jdbc_password}</value>
        </property>

        <!-- 连接池最大使用连接数 -->
        <property name="maxActive">
            <value>20</value>
        </property>
        <!-- 初始化连接大小 -->
        <property name="initialSize">
            <value>1</value>
        </property>
        <!-- 获取连接最大等待时间 -->
        <property name="maxWait">
            <value>60000</value>
        </property>
        <!-- 连接池最大空闲 -->
        <property name="maxIdle">
            <value>20</value>
        </property>
        <!-- 连接池最小空闲 -->
        <property name="minIdle">
            <value>3</value>
        </property>
        <!-- 自动清除无用连接 -->
        <property name="removeAbandoned">
            <value>true</value>
        </property>
        <!-- 清除无用连接的等待时间 -->
        <property name="removeAbandonedTimeout">
            <value>180</value>
        </property>
        <!-- 连接属性 -->
        <property name="connectionProperties">
            <value>clientEncoding=UTF-8</value>
        </property>
    </bean>

    <!-- mybatis文件配置，扫描所有mapper文件 -->
    <!-- <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"
        p:dataSource-ref="dataSource" p:configLocation="classpath:xml/mybatis-config.xml"
        p:mapperLocations="com/mmc/d4alc/dao/mapper/*.xml" /> -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="mapperLocations" value="classpath*:com/mmc/d4alc/dao/mapper/*.xml" />
        <property name="typeAliasesPackage" value="com.mmc.d4alc.domain" />
    </bean>
    <!-- configLocation为mybatis属性mapperLocations为所有mapper -->

    <!-- spring与mybatis整合配置，扫描所有dao -->
    <!-- <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer" p:basePackage="com.mmc.d4alc.dao"
        p:sqlSessionFactoryBeanName="sqlSessionFactory" /> -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.mmc.d4alc.dao" />
    </bean>

    <!-- 对数据源进行事务管理 -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
    <tx:annotation-driven transaction-manager="transactionManager" />
</beans>