一、先在\src\main\java下建立一個包，包名為com.hgc.inter,然後在該包下建立UserInterface.java，該檔案程式碼如下

package com.hgc.inter;

import com.hgc.pojo.User;
import org.apache.ibatis.annotations.Select;

/**
 * Created by 47500 on 2017/9/7.
 */
public interface UserInterface {
    @Select("SELECT * FROM user WHERE id=#{id}")
    public
 
 User selectUserByID(int id);
}

二、在src\main下建立test資料夾，然後在該資料夾下建立UserTest.java，程式碼如下

import com.hgc.inter.UserInterface;
import com.hgc.pojo.User;
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
 
 org.junit.Test;

import java.io.Reader;



/**
 * Created by 47500 on 2017/9/7.
 */
public class UserTest {
    /**
     * 根據介面及註釋獲取資料
     */
    @Test
    public void findByIdByInter() throws Exception{
        String resource ="mybatis-config.xml";
        Reader reader = null;
        reader = Resources.getResourceAsReader(resource);
        SqlSessionFactory sqlSessionFactory = new
 
 SqlSessionFactoryBuilder().build(reader);
        //註冊該介面
        sqlSessionFactory.getConfiguration().addMapper(UserInterface.class);
        //
        SqlSession session = sqlSessionFactory.openSession();
        UserInterface userInterface = session.getMapper(UserInterface.class);
        User user = userInterface.selectUserByID(1);
        System.out.println(user.getName());
    }
}