类加载器加载配置文件

@RunWith(SpringRunner.class)
@SpringBootTest
public class JestTest {


    @Test
    public void getProperties() throws IOException {
        //通过2种方式获取类加载器,然后可以将配置文件加载进行进来,一个是Thread类获取,另一个是字节码对象获取
        ClassLoader loader = Thread.currentThread().getContextClassLoader();
        //ClassLoader loader = JestTest.class.getClassLoader();
        InputStream inputStream = loader.getResourceAsStream("db.properties"); //读取文件转成输入流
        Properties p = new Properties();
        p.load(inputStream);
        System.out.println(p.get("name")); //test
        System.out.println(p.get("url"));//127.0.0.1
        System.out.println(p.get("password"));//null

    }
}