Java反射小例

Java 目录：https://blog.youkuaiyun.com/dkbnull/article/details/87932486

 

package cn.wbnull.reflect;

import java.lang.reflect.Constructor;
import java.lang.reflect.Method;

public class Reflect {

	public static void main(String[] args) {
		try {
			Class<?> methodClass = Class.forName("cn.wbnull.reflect.Reflect");
			Constructor con = methodClass.getConstructor();
			Object obj = con.newInstance();
			Method method = methodClass.getMethod("reflect", String.class);
			String str = (String) method.invoke(obj, "test");

			System.out.println("main:" + str);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public String reflect(String str) {
		String strReturn = "reflect:" + str;
		System.out.println(strReturn);

		return strReturn;
	}
}

输出：

reflect:test
main:reflect:test