import java.io.IOException;import java.io.Reader;import org.apache.ibatis.io.Resources;import org.apache.ibatis.session.SqlSessionFactory;import org.apache.ibatis.session.SqlSessionFactoryBuilder;public class GetSqlSessionFactory {    private static SqlSessionFactory sqlSessionFactory;        static{        String rs="mybatis-config.xml";        try {            Reader reader=Resources.getResourceAsReader(rs);            SqlSessionFactoryBuilder builder=new SqlSessionFactoryBuilder();            sqlSessionFactory=builder.build(reader);            //sqlSessionFactory.getConfiguration().addMappers("com.hengtian.mapper");        } catch (IOException e) {            e.printStackTrace();        }    }        public  static SqlSessionFactory getInstance(){        return sqlSessionFactory;    }    }