无言的苍凉的博客

import org.junit.Test; import java.io.*; import java.net.HttpURLConnection; import java.net.URL; /** * @Author: liuzhihu * @Date: 2019/6/10 8:55 */ public class DownLoadTest { /** * 从网...

map、list深拷贝同一方法： public static Object deepCopy(Object src) throws IOException, ClassNotFoundException { ByteArrayOutputStream byteOut = new ByteArrayOutputStream(); ObjectOutputStr...