獲取Class對象方法的三種方式：
類名.class;
對象名.getClass();
Class.forName("類"); " com.wsq.UserBean"
public class A {
private String rubbish="1111";
public String rubbish1="2222";
}
import java.lang.reflect.Field;
public class B {
public static void main(String[] args) throws InstantiationException, IllegalAccessException, SecurityException, NoSuchFieldException {
Class clazz=A.class;
Field field=clazz.getDeclaredField("rubbish"); // 要是私有要用這個方法
Field field1=clazz.getDeclaredField("rubbish1");
Field field2=clazz.getField("rubbish1"); //只能訪問public
field.setAccessible(true);//要是私有這個很重要
A obj=(A)clazz.newInstance();
System.out.println("私有"+field.get((obj)));
System.out.println("公有"+field1.get((obj)));
System.out.println(“公有"+field2.get((obj)));
}
}
posted on 2008-01-24 14:15
Crying 閱讀(1831)
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java反射機制