public class ReflectionTest {
    @Test
    public void testClassLoader() throws FileNotFoundException{
        //src目錄下，直接載入
        InputStream in1 = null;
        in1 = this.getClass().getClassLoader().getResourceAsStream("test1.txt");
        
        //放在內部資料夾，要寫全路徑
        InputStream in2 = null;
        in2 = this.getClass().getClassLoader().getResourceAsStream("com/atguigu/java/fanshe/test2.txt");
    }
}