Java 实例 - 获取远程文件大小
Java 教程
· 2019-02-11 20:42:42
以下实例演示了如何获取远程文件的大小：
Main.java 文件
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();
}
}
以上代码运行输出结果为：
文件大小为：4261 bytes
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