package com.bighai.forTest; import java.io.IOException; import java.net.URL; import java.net.URLConnection; import java.util.Map; import java.util.Set; public class CheckHttpResposneHeaders { public static void main(String[] args) throws IOException{ URL url = new URL("http://pic.qihoo.com/belle/belle182.html"); URLConnection conn = url.openConnection(); Map headers = conn.getHeaderFields(); Set<String> keys = headers.keySet(); for( String key : keys ){ String val = conn.getHeaderField(key); System.out.println(key+" "+val); } System.out.println( conn.getLastModified() ); } } |
URLConnection还有一些方法可以研究，跟http通信有关的。
