反照调用私有方法
反射调用私有方法
反射调用构造方法和私有方法
import java.lang.reflect.Constructor; import java.lang.reflect.Method; public class PrivateTest { public static void main(String[] args) throws Exception{ Class<?> clazz = Private.class; Constructor<?> constructor = clazz.getConstructor(new Class<?>[]{String.class,int.class}); Object obj = constructor.newInstance("star",23); Method method = clazz.getDeclaredMethod("doPrivate", new Class<?>[]{}); method.setAccessible(true); //压制访问修饰符的检查 String results = (String) method.invoke(obj); System.out.println(results); } } class Private{ private String name; private int age; public Private(String name,int age){ this.name = name; this.age = age; } private String doPrivate(){ return "name:"+name+" age:"+age; } }