搭建MyBatis基础环境(4)

}

​

//测试基础环境

private static void testBaseEnv() {

String resource = "mybatis-config.xml";

InputStream inputStream;

SqlSession sqlSession = null;

try {

//MyBatis 包含一个名叫 Resources 的工具类，它包含一些实用方法，可使从 classpath 或其他位置加载资源文件

inputStream = Resources.getResourceAsStream(resource);

//SqlSessionFactoryBuild来创建一个SqlSessionFactory实例

SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder()

.build(inputStream);

sqlSession = sqlSessionFactory.openSession();

int count = sqlSession.selectOne(

"com.test.xml.UserMapper.count");

System.out.print("count is " + count);

} catch (IOException e) {

e.printStackTrace();

}finally {

if(null!=sqlSession) {

sqlSession.close();

}

}

}

​

}

运行程序查看结果