java-mybatis instance

Reprinted from: https://www.jianshu.com/p/c2bab03484f4

Engineering structure

Main function content:

package javaMybatis;

import java.io.IOException;

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 com.freejoymybatis.entity.User;
import com.freejoymybatis.mapper.UserMapper;

public class MyBatisTest {
	private static SqlSessionFactory getSqlSessionFactory(){
		SqlSessionFactory sqlSessionFactory = null;
		String resource = "configuration.xml";
		try{
			sqlSessionFactory = new SqlSessionFactoryBuilder().build(Resources.getResourceAsReader(resource));
		}
		catch(IOException e){
			e.printStackTrace ();
		}
		return sqlSessionFactory;
	}
	
	public static void main(String[] args){
		try{
			SqlSession sqlSession = getSqlSessionFactory().openSession();
			UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
			
			User aUser = new User();
			aUser.setName("Oster");
			aUser.setAge(16);
			int result = userMapper.saveUser(aUser);
			System.out.println(result);
			
			User user = userMapper.findById("1");
			System.out.println(user.getName());
		}
		catch(Exception e){
			System.out.println("error---log");
			System.out.println(e.toString());			
		}
	}
}