mybatis加载配置文件测试

一、 Inputstream

public static void test1(){///加载mybatis的配置文件String str="conf.xml";InputStream is=Test.class.getClassLoader().getResourceAsStream(str);//构建sqlSession的工厂SqlSessionFactory factory=new SqlSessionFactoryBuilder().build(is);SqlSession session=factory.openSession();//映射sql的标识字符串,是在影射文件中找到namespace+“”+select中的idString statement="com.atguigu.day03_mybaits.userMapper.getUser";//执行查询返回一个唯一user对象的sqlUser user=session.selectOne(statement, 1);System.out.println(user);}

二、 Reader

public static void test2() throws IOException{     String resource = "conf.xml";     //加载mybatis的配置文件    Reader reader = Resources.getResourceAsReader(resource);     //构建sqlSession的工厂    SqlSessionFactory factory=new SqlSessionFactoryBuilder().build(reader);    SqlSession session=factory.openSession();    //映射sql的标识字符串,是在影射文件中找到namespace+“”+select中的id    String statement="com.atguigu.day03_mybaits.userMapper.getUser";    //执行查询返回一个唯一user对象的sql    User user=session.selectOne(statement, 2);    System.out.println(user);    }

三、junit4注解

@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration(locations={"classpath:conf/app-context.xml"})public class StudentDaoMybatisTest { @Resource private StudentDao dao;     @Test    public void testAddStudent() {     System.out.println("test"); //student_id,name,sex,honor,create_time,create_user Student stu=new Student(); stu.setStudentId(1234L); stu.setName("abc"); stu.setSex(1L); stu.setHonor("unknow"); stu.setCreateTime(new Date()); stu.setCreateUser(null); dao.add(stu);         }