mybatis的mapper包导入失败

为什么mapper包引入失败呀？
mapper接口

package com.benchuat.mapper;

import com.benchuat.pojo.User;
import org.apache.ibatis.annotations.Mapper;

@Mapper
public interface UserMapper {
    int insertUser(String name, int age);
    int  deleteUserbyId(int id);
    int updateUserbyId(int id, String name, int age);
    User selectUserbyId(int id);
}

mybatis.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>
    <properties resource="application.properties"></properties>
    <typeAliases>
        <package name="com.benchuat.pojo"/>
    </typeAliases>
    <!--设置连接数据库的环境-->
    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"/> <!--事务方式-->
            <dataSource type="POOLED">  <!--设置连接池-->
                <property name="driver" value="${spring.datasource.driver-class-name}"/>
                <property name="url" value="${spring.datasource.url}"/>
                <property name="username" value="${spring.datasource.username}"/>
                <property name="password" value="${spring.datasource.password}"/>
            </dataSource>
        </environment>
    </environments>
    <!--引入映射文件-->
    <mappers>
        <!--<mapper resource="mapper/UserMapper.xml"/>-->
        <!--使用包导入com/benchuat/mapper-->
        <package name="com.benchuat.mapper"/>
    </mappers>
</configuration>

测试方法

    @Test
    public void userTest() {
        Connation connation = new Connation();
        SqlSession session = connation.getSession();
        User user = session.selectOne("com.benchuat.mapper.UserMapper.selectUserbyId", 1);
        System.out.println(user);
        connation.closeSession(session);
    }

目录

使用资源导入没有问题

使用包导入就不行