public class UserMapperTest {
    
private ApplicationContext applicationContext;
    
    @Before
    public void init() throws Exception {
        //初始化spring容器
        applicationContext = new ClassPathXmlApplicationContext("classpath:spring/applicationContext.xml");
    }

    @Test
    public void testDeleteByPrimaryKey() {
        fail("Not yet implemented");
    }

    @Test
    public void testInsert() {
        UserMapper userMapper = applicationContext.getBean(UserMapper.class);
        User user = new User();
        user.setUsername("武大郎");
        user.setSex("1");
        user.setBirthday(new Date());
        user.setAddress("河北清河县");
        userMapper.insert(user);
    }

    @Test
    public void testSelectByExample() {
        UserMapper userMapper = applicationContext.getBean(UserMapper.class);
        UserExample example = new UserExample();
        //Criteria criteria = example.createCriteria();
        //criteria.andUsernameLike("%张%");
        //执行查询
        List<User> list = userMapper.selectByExample(example);
        for (User user : list) {
            System.out.println(user);
        }
    }

    @Test
    public void testSelectByPrimaryKey() {
        UserMapper userMapper = applicationContext.getBean(UserMapper.class);
        User user = userMapper.selectByPrimaryKey(10);
        System.out.println(user);
    }

    @Test
    public void testUpdateByPrimaryKey() {
        fail("Not yet implemented");
    }

}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
    <!-- 加载配置文件 -->
    <context:property-placeholder location="classpath:db.properties" />
    <!-- 数据库连接池 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <property name="driverClassName" value="${jdbc.driver}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
        <property name="maxActive" value="10" />
        <property name="maxIdle" value="5" />
    </bean>
    <!-- sqlSessonFactory的配置 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 配置数据库连接池 -->
        <property name="dataSource" ref="dataSource"></property>
        <!-- 加载配置文件 -->
        <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"></property>
    </bean>
    
    <!-- 传统dao的配置方法 -->
    <bean id="userDaoImpl" class="cn.itheima.mybatis.dao.impl.UserDaoImpl">
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactory" ref="sqlSessionFactory"/>
    </bean>
    <!-- mapper代理形式dao的配置 -->
    <!-- 第一种方法，配置代理对象 -->
    <!-- <bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
        设置代理的mapper接口
        <property name="mapperInterface" value="cn.itheima.mybatis.mapper.UserMapper"></property>
        注入sqlSessionFactory
        <property name="sqlSessionFactory" ref="sqlSessionFactory"/>
    </bean> -->
    <!-- 配置包扫描器 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 配置要扫描的包 ，如果扫描多个包使用半角逗号分隔-->
        <!-- <property name="basePackage" value="cn.itheima.mybatis.mapper,com.itheima.mybatis.mapper"/> -->
        <property name="basePackage" value="com.itheima.mybatis.mapper"/>
    </bean>
</beans>