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

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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;}}