import java.net.URL;import java.net.URLConnection; public class Main { public static void main(String[] args) throws Exception { int size; URL url = new URL("http://www.codercto.com/wp-content/themes/codercto/assets/img/newlogo.png"); URLConnection conn = url.openConnection(); size = conn.getContentLength(); if (size < 0) System.out.println("无法获取文件大小。"); else System.out.println("文件大小为：" + size + " bytes"); conn.getInputStream().close(); }}
