java反射测试

测试类

public class T {/** * @param args * @throws ClassNotFoundException  * @throws NoSuchMethodException  * @throws SecurityException  * @throws InvocationTargetException  * @throws IllegalAccessException  * @throws IllegalArgumentException  */@SuppressWarnings("unchecked")public static void main(String[] args) throws ClassNotFoundException, SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException {// TODO Auto-generated method stubClassLoader cl = T.class.getClassLoader();Class<StaticTest> staticTest = (Class<StaticTest>) cl.loadClass("com.study.StaticTest");Method startup = staticTest.getMethod("startup", Integer.class);startup.invoke(staticTest, 13);System.out.println(staticTest);}}

被测试类

public class StaticTest {static {System.out.println("I'm static");}public StaticTest() {System.out.println("I'm constructor ");}public static void startup(Integer time) {System.out.println(time);}}

输出结果：

I'm static13class com.study.StaticTest