Mybaitis配置模板

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/emp
jdbc.username=root
jdbc.password=123456

        resources中不能用“.“表示下级目录，会报错。

    
        
        
        
        
    
    
        select id, username, jobs, phone from tb_customer;
    

MybatisUtils

package util;

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;

public class MybatisUtils {
    private static SqlSessionFactory sqlSessionFactory = null;

    static {
        try {
            Reader reader = org.apache.ibatis.io.Resources.getResourceAsReader("mybatis-config.xml");
            sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static SqlSession getSession() {
        return sqlSessionFactory.openSession();
    }
}

        
          src/main/java
          
            **/*.xml