import java.lang.reflect.Method;
import java.util.Arrays;
public class Test
{
public static void main(String s[]) throws ClassNotFoundException
{
Class cls = Class.forName("Test");
System.out.println("Class is "+cls);
Method[] mtds = cls.getMethods();
System.out.println("Methods are "+Arrays.deepToString(mtds)); // not having all methods
}
void reflectionTestMethod()
{
System.out.println("test");
}
}
输出是
类是类测试方法是[public static void Test.main(java.lang.String [])throws java.lang.ClassNotFoundException,public final void java.lang.Object.wait()throws java.lang.InterruptedException,public final native void java.lang.Object.wait(long)throws java.lang.InterruptedException,public final void java.lang.Object.wait(long,int)throws java.lang.InterruptedException,public boolean java.lang.Object . equals(java.lang.Object),public java.lang.String java.lang.Object.toString(),public native int java.lang.Object.hashCode(),public final native java.lang.Class java.lang . Object.getClass(),public final native void java.lang.Object.notify(),public final native void java.lang.Object.notifyAll()]
为什么 reflectionTestMethod() 在输出中不可用?
2 回答
getMethods()
返回公共方法(因为它在Javadoc中声明)请尝试使用
getDeclaredMethods()
或将该方法设为公开 .顺便说一下,你可以这样做:
因为那种方法不公开 . javadoc states(强调我的):