Class not found: "com.wei.oa.utils.MybatisUtilsTestor"

总是找不到类

我的代码如下：

<?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>
<!--    驼峰命名转换-->
    <settings>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>

    <!--    设置默认的指向的数据库-->
    <environments default="dev">
        <!--        配置环境，不用的环境不同的ID名字-->
        <environment id="dev">
            <!-- 采用jdbc方式对数据库事务进行commit和rollback-->
            <transactionManager type="JDBC"></transactionManager>
            <!--            采用连接数据池方式管理数据库的连接-->
            <!--            <dataSource type="POOLED">这个就不能用了，换成C3P0连接池和C3P0DataSourceFactory这个类配合使用-->
<!--            <dataSource type="com.wei.mybatis.datasource.C3P0DataSourceFactory">-->
<!--            mybatis和德鲁伊连接池整合-->
            <dataSource type="com.wei.oa.datasources.DruidDataSourceFactory">
                <!--                <property name="driver" value="com.mysql.cj.jdbc.Driver"/>-->
<!--                jdbc连接属性c3p0的name-->
<!--                <property name="driverClass" value="com.mysql.cj.jdbc.Driver"/>-->
<!--                德鲁伊的name-->
                <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/>
                <!--                <property name="url" value="jdbc:mysql://localhost:3306/babytun?useUnicode=true&amp;characterEncoding=UTF-8&amp;serverTimezone=Asia/Shanghai&amp;allowPublicKeyRetrieval=true"/>-->
                <property name="url" value="jdbc:mysql://localhost:3306/imooc-oa?useUnicode=true&amp;characterEncoding=UTF-8&amp;serverTimezone=Asia/Shanghai"/>
                <!--                <property name="username" value="root"/>-->
                <property name="username" value="root"/>
                <property name="password" value="root"/>
<!--                <property name="initialPoolSize" value="5"/>-->
<!--                <property name="maxPoolSize" value="20"/>-->
<!--                <property name="minPoolSize" value="5"/>-->

            </dataSource>
        </environment>
    </environments>

    <mappers>
        <mapper resource="mappers/test.xml"/>
    </mappers>
</configuration>

package com.wei.oa.utils;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import sun.misc.ExtensionInstallationException;

import java.io.IOException;
import java.io.Reader;
import java.util.function.Function;

public class MybatisUtils {
    //利用static 静态属于类不属于对象，且全局唯一
    private static SqlSessionFactory sqlSessionFactory=null;

    //利用静态块在初始化类时实例化sqlSessionFactory
    static {
        Reader reader=null;
        try{
            reader = Resources.getResourceAsReader("mybatis-config.xml");
        }
        catch (IOException e){
            //初始化错误时，通过抛出异常通知调用者
            throw new ExceptionInInitializerError(e);
        }
    }

    /**
     * 执行SELECT查询SQL
     * @param func 要执行查询语句的代码块
     * @return 查询结果
     */
    public static Object executeQuery(Function<SqlSession,Object> func){
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Object obj = func.apply(sqlSession);
            return obj;
        } finally {
            sqlSession.close();
        }
    }


    /**
     * 执行INSERT/UPDATE/DELETE写操作的SQL
     * @param func 要执行的写操作的代码块
     * @return 写操作后的返回的结果
     */
    public static Object executeUpdate(Function<SqlSession,Object> func){
        SqlSession sqlSession = sqlSessionFactory.openSession(false);
        try {
            Object obj = func.apply(sqlSession);
            sqlSession.commit();
            return obj;
        }catch (RuntimeException e){
            sqlSession.rollback();
            throw e;
        }finally {
            sqlSession.close();
        }
    }
}

​