初级反射

[sinat_37677711]

package fanshe;

public class Dog {
	public String str="Hello";
public void Dog(){}
public void Dog (String name){
	System.out.println(name);
}
}



package fanshe;

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;

public class Test {

	public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException, NoSuchMethodException, SecurityException, IllegalArgumentException, InvocationTargetException {
		Class clzz=Class.forName("/demon/src/fanshe/Dog");
		Constructor c= clzz.getConstructor(String.class);
		Dog dog=(Dog) c.newInstance("Li");
		System.out.println(dog.str);

	}

}

怎么控制台没显示呢，感觉没什么错啊

[天涯共明月]

 Class clzz=Class.forName("/demon/src/fanshe/Dog");

这句有错，应该写类的包全路径 如： Class clzz=Class.forName("fanshe.Dog");

[天涯共明月]

比如 加载mysql驱动时就是： Class.forName("com.mysql.jdbc.driver");

[sinat_37677711]

Exception in thread "main" java.lang.NoSuchMethodException: fanshe.Dog.<init>(int)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.getConstructor(Unknown Source)
at fanshe.Reflect.main(Reflect.java:10)

[sinat_37677711]

老铁，还是不行啊。。。#24

[lyn584238910]

class.forName("包名+类名")