获取HttpResponseHeader属性

/**

*

* @author Cache John

* @email 550595698@qq.com

*

*/

public class GetHttpResponseHeader

{

public static void main(String[] args)

{

try

{

URL obj = new URL("http://www.huawei.com");

URLConnection conn = obj.openConnection();

Map<String, List<String>> map = conn.getHeaderFields();

System.out.println("显示响应Header信息\n");

for (Map.Entry<String, List<String>> entry : map.entrySet())

{

System.out.println("Key : " + entry.getKey() + " ,Value : " + entry.getValue());

}

System.out.println("\n使用key获得响应Header信息 \n");

List<String> server = map.get("Server");

if (server == null)

{

System.out.println("Key 'Server' is not found!");

}

else

{

for (String values : server)

{

System.out.println(values);

}

}

}

catch (Exception e)

{

e.printStackTrace();

}

}

}