mybatis訪問數據庫

<?xml version="1.0" encoding="UTF-8"?>

<?xml version="1.0" encoding="UTF-8"?>

package com.china.bill.java.util;

import java.io.IOException;
import java.io.Reader;

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.china.bill.java.dao.ConfigMapper;
import com.china.bill.java.entity.Config;

public class MybatisUtils 
{
	private static SqlSessionFactory sessionFactory=null;
	static{
		try {
			Reader reader=Resources.getResourceAsReader("conf/mybatis.xml");
			sessionFactory=new SqlSessionFactoryBuilder().build(reader);
		} catch (IOException e) {
			e.printStackTrace();
		}
		
	}
	public static SqlSession getSession() 
	{
		return sessionFactory.openSession();
	}
	/*public static void main(String[] args) {
		SqlSession sqlSession = getSession();
		ConfigMapper configMapper = sqlSession.getMapper(ConfigMapper.class);
		Config config = configMapper.getConfig("1");
		System.out.println(config.getConfigValue());
	}*/
}