mybatis-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC 
"-//mybatis.org//DTD Config 3.0//EN" 
"http://mybatis.org/dtd/mybatis-3-config.dtd"> 
<configuration>
	<settings>
	<!-- 给java 对象中的空属性 指定一个jdbc类型 varchar null -->
		<setting name="jdbcTypeForNull" value="NULL"/>
		<!-- 使二级缓存生效 -->
		<setting name="cacheEnabled" value="true" /> 
	</settings>
	
	<typeAliases>
		<!-- 给指定包下所有类起别名 ， 别名为类名，
			使用时不区分大小写  -->
		<package name="com.briup.bean"/>
	</typeAliases>
	<environments default="development">
	<!-- 一个environment对应一个数据库的连接信息
			和事务管理信息 -->
		<environment id="development">
		<!-- 事务管理机制 type值 为JDBC  
			MANAGED -->
			<transactionManager type="JDBC"></transactionManager>
			<!-- POOLED   使用连接池维护与数据库建立的连接
				UNPOOLED
			 -->
			<dataSource type="POOLED">
			<!-- driver url username password -->
				<property name="driver"
				value="oracle.jdbc.driver.OracleDriver"/>
				<property name="url" 
				value="jdbc:oracle:thin:@127.0.0.1:1521:orcltest"/>
				<property name="username" 
				value="briup"/>
				<property name="password" 
				value="briup"/>
			</dataSource>
		</environment>
		
	</environments>
	
	<mappers>
		<mapper resource="com/briup/bean/CustomerMapper.xml"/>
		<mapper resource="com/briup/bean/BookMapper.xml"/>
		<mapper resource="com/briup/bean/OrderformMapper.xml"/>
		<mapper resource="com/briup/bean/OrderLineMapper.xml"/>
	</mappers>
</configuration>