Spring与Mybatis整合 将SqlSessionFactory的创建交给spring完成

1导入jar文件
导入spring相关的jar；
导入mybatis相关的jar
导入mybatis-spring-XXXX.jar
如果使用连接池，导入连接池的jar文件，如druid
使用mysql数据库，导入mysql的驱动jar文件


org.springframework
spring-context
5.1.5.RELEASE

	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-aop</artifactId>
		<version>5.1.5.RELEASE</version>
	</dependency>
	<!-- 事务会自动引入 -->
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-jdbc</artifactId>
		<version>5.1.5.RELEASE</version>
	</dependency>

	<dependency>
		<groupId>org.aspectj</groupId>
		<artifactId>aspectjrt</artifactId>
		<version>1.8.2</version>
	</dependency>
	<dependency>
		<groupId>org.aspectj</groupId>
		<artifactId>aspectjweaver</artifactId>
		<version>1.8.2</version>
	</dependency>
	<dependency>
		<groupId>aopalliance</groupId>
		<artifactId>aopalliance</artifactId>
		<version>1.0</version>
	</dependency>

	<dependency>
		<groupId>org.mybatis</groupId>
		<artifactId>mybatis</artifactId>
		<version>3.4.5</version>
	</dependency>
	
	<dependency>
		<groupId>org.mybatis</groupId>
		<artifactId>mybatis-spring</artifactId>
		<version>1.3.2</version>
	</dependency>
	<dependency>
		<groupId>log4j</groupId>
		<artifactId>log4j</artifactId>
		<version>1.2.17</version>
	</dependency>
	<dependency>
		<groupId>com.alibaba</groupId>
		<artifactId>druid</artifactId>
		<version>1.0.18</version>
	</dependency>
	
	<dependency>
		<groupId>mysql</groupId>
		<artifactId>mysql-connector-java</artifactId>
		<version>5.1.39</version>
	</dependency>
</dependencies>

2 配置

<?xml version="1.0" encoding="UTF-8"?>

    <!-- 扫描相关注解 -->  
<context:component-scan base-package="com.qianfeng.sm"></context:component-scan>        

<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
	  init-method="init" destroy-method="close">
	<property name="driverClassName" value="com.mysql.jdbc.Driver" />
	<property name="url" value="jdbc:mysql://localhost:3306/j1806" />
	<property name="username" value="root" />
	<property name="password" value="root" />
	<!-- 配置初始化大小、最小、最大 -->
	<property name="initialSize" value="1" />
	<property name="minIdle" value="1" />
	<property name="maxActive" value="10" />
	<!-- 配置获取连接等待超时的时间 -->
	<property name="maxWait" value="10000" />
	<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
	<property name="timeBetweenEvictionRunsMillis" value="60000" />
	<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
	<property name="minEvictableIdleTimeMillis" value="300000" />
	<property name="testWhileIdle" value="true" />
	<!-- 这里建议配置为TRUE，防止取到的连接不可用 -->
	<property name="testOnBorrow" value="true" />
	<property name="testOnReturn" value="false" />
	
</bean>

<!-- 2 创建Mybatis的工厂对象 -->
<bean id="sqlSessionFactory"
	class="org.mybatis.spring.SqlSessionFactoryBean">
	<!--设置数据库连接池 -->
	<property name="dataSource" ref="dataSource"></property>
	<!-- 加载mybatis主配置文件 -->
	<property name="configLocation" value="classpath:mybatis2.xml"/>
	<!-- 加载映射文件 -->
	<property name="mapperLocations" value="classpath:com/qianfeng/sm/*.xml"/>
</bean>
<!--3设置Mybatis的映射接口 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
	<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
	<!-- 设置映射文件所在包 -->
	<property name="basePackage" value="com.qianfeng.sm"></property>
</bean>

3 web.xml的配置
如果使用web应用，需要在web.xml中引入如下配置

  <context-param>
    <param-name>contextConfigLocation</param-name>
    <!-- classpath相当于/WEB-INF/classes -->
    <param-value>classpath:spring-bean.xml</param-value>
<!--     <param-value>/WEB-INF/classes/bean.xml</param-value> -->
  </context-param>

  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

注：servlet中注入的处理
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
SpringBeanAutowiringSupport.processInjectionBasedOnServletContext(this);
}