JAVA反射

public class T {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String s = "com.反射.Customer";
		T t = new T();
		t.getFields(s);
		t.getMethods(s);
		t.excMethods(s);
	}

	public void getFields(String className) {
		try {
			Class c = Class.forName(className);
			System.out.println("属性：");
			Field f[] = c.getDeclaredFields();
			for (int i = 0; i < f.length; i++) {
				System.out.println(f[i].getName());
			}

		} catch (Throwable e) {
			System.err.println(e);
		}
	}

	public void getMethods(String className) {
		try {
			Class c = Class.forName(className);

			System.out.println("方法：");
			Method m[] = c.getDeclaredMethods();
			for (int i = 0; i < m.length; i++) {
				System.out.println(m[i].toString());
			}

		} catch (Throwable e) {
			System.err.println(e);
		}
	}

	public void excMethods(String className) {
		try {
			Class c = Class.forName(className);

			Object o = c.getConstructor(new Class[] {}).newInstance(
					new Object[] {});
			Method sAge = c.getMethod("setAge", new Class[] { int.class });
			Method gAge = c.getMethod("getAge", null);
			Method sName = c.getMethod("setName", new Class[] { String.class });
			Object[] args1 = { new Integer(25) };
			sAge.invoke(o, args1);
			Integer AGE = (Integer) gAge.invoke(o, null);
			System.out.println("the Customer age is: " + AGE);
			Object[] args2 = { new String("李四") };
			sName.invoke(o, args2);

		} catch (Throwable e) {
			System.err.println(e);
		}
	}

}