Java 实例 - 获取 URL响应头的日期信息
以下实例演示了如何使用 HttpURLConnection 的 httpCon.getDate() 方法来获取 URL响应头的日期信息:
/*
author by voidme.com
Main.java
*/
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Date;
public class Main{
public static void main(String args[])
throws Exception {
URL url = new URL("http://www.voidme.com");
HttpURLConnection httpCon =
(HttpURLConnection) url.openConnection();
long date = httpCon.getDate();
if (date == 0)
System.out.println("无法获取信息。");
else
System.out.println("Date: " + new Date(date));
}
}
以上代码运行输出结果为:
Date: Mon May 04 11:57:06 CST 2015