mybatis 加载配置文件的方法（两种方式）

<!-- SessionFactory -->  <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" scope="singleton">  <property name="dataSource" ref="dataSource" />  <property name="configLocation" value="classpath:mybatis-config.xml" />  <!-- 映射文件路径,可以集中写到一个地方,也可以与dao写到一个地方,支持多个路径,支持通配符-->  <property name="mapperLocations" value="classpath:mapper/*.xml,classpath:com/sunny/shop/*/dao/*.xml"></property>  </bean> 

<!-- 扫描指定包下的所有接口,创建代理类,如果mysql的配置文件名与接口名相同的话,可以不用一一配置 -->  <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">   <property name="basePackage" value="com.sunny.shop" />   <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> 

<mappers>  <!-- 既可写映射文件, 也可写对应的接口 -->     <!--<mapper resource="com/mybatis/student/StudentMapper.xml" />   <mapper resource="com/mybatis/classes/ClassesMapper.xml" />    <mapper class="com.sunny.shop.user.dao.UserDao" />   -->  </mappers> 

package com.atguigu.day03_mybaits.test;import java.io.IOException;import java.io.InputStream;import java.io.Reader;import org.apache.ibatis.io.Resources;import org.apache.ibatis.session.SqlSession;import org.apache.ibatis.session.SqlSessionFactory;import org.apache.ibatis.session.SqlSessionFactoryBuilder;public class Test {public static void test1(){///加载mybatis的配置文件（它也加载关联的映射文件）String str="conf.xml";InputStream is=Test.class.getClassLoader().getResourceAsStream(str);//构建sqlSession的工厂SqlSessionFactory factory=new SqlSessionFactoryBuilder().build(is);SqlSession session=factory.openSession();//映射sql的标识字符串,是在影射文件中找到namespace+“”+select中的idString statement="com.atguigu.day03_mybaits.userMapper.getUser";//执行查询返回一个唯一user对象的sqlUser user=session.selectOne(statement, 1);System.out.println(user);}public static void test2() throws IOException{///加载mybatis的配置文件（它也加载关联的映射文件）String resource = "conf.xml"; //加载mybatis的配置文件（它也加载关联的映射文件）Reader reader = Resources.getResourceAsReader(resource); //构建sqlSession的工厂SqlSessionFactory factory=new SqlSessionFactoryBuilder().build(reader);SqlSession session=factory.openSession();//映射sql的标识字符串,是在影射文件中找到namespace+“”+select中的idString statement="com.atguigu.day03_mybaits.userMapper.getUser";//执行查询返回一个唯一user对象的sqlUser user=session.selectOne(statement, 2);System.out.println(user);}public static void main(String[] args) throws IOException {test1();test2();}}