这是什么错误

UserService:
package com.mooc.mybatis.service;
import com.mooc.mybatis.bean.Person;


import java.util.List;
public interface UserService {
	public  List<Person> getAllUsersBypageHelper() ;
		
	
}

UserServiceImpl:
package com.mooc.mybatis.service.Impl;
import com.mooc.mybatis.dao.PersonMapper;

import com.mooc.mybatis.bean.Person;
import com.mooc.mybatis.service.UserService;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

import java.io.IOException;
import java.io.Reader;
import java.util.List;
public class UserServiceImpl implements UserService{

	
	    public static SqlSessionFactory sqlSessionFactory = null;

	    public static SqlSessionFactory getSqlSessionFactory() {
	        if (sqlSessionFactory == null) {
	            String resource = "mybatis-config.xml";
	            try {
	                Reader reader = Resources.getResourceAsReader(resource);
	                sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
	            } catch (IOException e) {
	                e.printStackTrace();
	            }
	        }
	        return sqlSessionFactory;
	    }

       @Override
	    public List<Person> getAllUsersBypageHelper() {

	        SqlSession sqlSession=this.getSqlSessionFactory().openSession();

	        PersonMapper personMapper=sqlSession.getMapper(PersonMapper.class);

	        List<Person> persons=personMapper.getAllPersons();


	        return persons;
	    }

}

同学你好，提示去掉@Override，问一下同学该类是否继承了UserService。如果没有继承，需要继承一下UserService类。建议同学检查一下。

如果我的回答解决了你的疑惑，请采纳。祝：学习愉快~