MyBatis的工具类SqlSession

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这是一个生产SqlSession的工具类，其他的我就不多说了，看代码就行

package util;

import java.io.IOException;
import java.io.InputStream;

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

public class MySessionFactory {
   private static SqlSessionFactory sqlSessionFactory=null;
   private static SqlSession MySqlSession;

   private static MySessionFactory sessionFactory = new MySessionFactory();

   private MySessionFactory(){

   }
   //加载文件
   static{

       try {
           String resource = "mybatis-config.xml";
           InputStream inputStream = Resources.getResourceAsStream(resource);

           sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
           //sqlSessionFactory
           System.out.println("创建sessionfactory工厂："+sqlSessionFactory);
       } catch (IOException e) {
           System.out.println("加载文件失败");
           e.printStackTrace();
       }


   }

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

   public static void close(){
       if(MySqlSession != null){
           MySqlSession.close();
       }
   }

}