用maven整合spring-mybatis时找不到beans.xml

求大神们帮忙看看错误在哪，已经找了一上午了。。不知道beans.xml到底哪里错了

UserDao：

@Repository
public interface UserDao {
    public List<User> selectUser();
}

UserDaoImpl：

public class UserDaoImpl implements UserDao {
    private SqlSessionTemplate sqlSession;

    public void setSqlSession(SqlSessionTemplate sqlSession) {
        this.sqlSession = sqlSession;
    }
    @Override
    public List<User> selectUser() {

        return sqlSession.selectList("com.entity.user.mapper.selectAll");
    }
}

user.mapper.xml:

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.entity.user.mapper">

    <select id="selectAll" resultType="com.entity.User">
        select * from user
    </select>

test:

public class Test {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
        UserDao userDao = (UserDao)context.getBean("userDao");
        System.out.println(userDao.selectUser().size());
    }
}

beans.xml：

       <!--配置SqlSessionFactory对象-->
       <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
              <property name="dataSource" ref="dataSource" />
              <!--绑定mybatis配置文件-->
              <property name="configLocation" value="classpath:mybatis-config.xml"/>
<!--              <property name="mapperLocations" value="classpath:com/entity/user.mapper.xml"/>-->
       </bean>
       <bean id="SqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
       <constructor-arg index="0" ref="sqlSessionFactory"></constructor-arg>
</bean>
       <bean id="userDao" class="com.dao.impl.UserDaoImpl">
       <property name="sqlSession" ref="SqlSessionTemplate"></property>
</bean>

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>
    <typeAliases>
        <package name="com.entity" />
    </typeAliases>

</configuration>

我不会