<!-- SessionFactory --> 
 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" scope="singleton"> 
 <property name="dataSource" ref="dataSource" /> 
 <property name="configLocation" value="classpath:mybatis-config.xml" /> 
 <!-- 映射文件路徑,可以集中寫到一個(gè)地方,也可以與dao寫到一個(gè)地方,支持多個(gè)路徑,支持通配符--> 
 <property name="mapperLocations" value="classpath:mapper/*.xml,classpath:com/sunny/shop/*/dao/*.xml"></property> 
 </bean> 

<!-- 掃描指定包下的所有接口,創(chuàng)建代理類,如果MySQL的配置文件名與接口名相同的話,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> 
 <!-- 既可寫映射文件, 也可寫對(duì)應(yīng)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(){
///加載mybatis的配置文件（它也加載關(guān)聯(lián)的映射文件）
String str="conf.xml";
InputStream is=Test.class.getClassLoader().getResourceAsStream(str);
//構(gòu)建sqlSession的工廠
SqlSessionFactory factory=new SqlSessionFactoryBuilder().build(is);
SqlSession session=factory.openSession();
//映射sql的標(biāo)識(shí)字符串,是在影射文件中找到namespace+“”+select中的id
String statement="com.atguigu.day03_mybaits.userMapper.getUser";
//執(zhí)行查詢返回一個(gè)唯一user對(duì)象的sql
User user=session.selectOne(statement, 1);
System.out.println(user);
}
public static void test2() throws IOException{
///加載mybatis的配置文件（它也加載關(guān)聯(lián)的映射文件）
String resource = "conf.xml"; 
//加載mybatis的配置文件（它也加載關(guān)聯(lián)的映射文件）
Reader reader = Resources.getResourceAsReader(resource); 
//構(gòu)建sqlSession的工廠
SqlSessionFactory factory=new SqlSessionFactoryBuilder().build(reader);
SqlSession session=factory.openSession();
//映射sql的標(biāo)識(shí)字符串,是在影射文件中找到namespace+“”+select中的id
String statement="com.atguigu.day03_mybaits.userMapper.getUser";
//執(zhí)行查詢返回一個(gè)唯一user對(duì)象的sql
User user=session.selectOne(statement, 2);
System.out.println(user);
}
public static void main(String[] args) throws IOException {
test1();
test2();
}
}