以下实例演示了如何获取远程文件的大小:
- /*
- author by shouce.ren
- Main.java
- */
- import java.net.URL;
- import java.net.URLConnection;
- public class Main {
- public static void main(String[] argv)
- throws Exception {
- int size;
- URL url = new URL("http://www.shouce.ren/wp-content/themes/shouce.ren/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();
- }
- }
以上代码运行输出结果为:
- 文件大小为:4261 bytes