求 HttpURLConnection 使用说明

[lashzl]

小弟，最近用HttpURLConnection写程序，很是不爽。在用HttpURLConnection过程中，在用setRequestProper(),提示我aleady connected , 可是在这之前我已经用
disconnect()关闭过了。我用HttpURLConnection完全是根据方法名猜测其用途，可是，我发现很多方法都是不能随便使用的。
在此，向大家请教HttpURLConnection的使用说明。最好有完整的代码实例。

[qqbz]

看帮助！

[Philzzf]

http://www.ccw.com.cn/htm/center/prog/02_6_21_3_2.asp
http://www.yesky.com/SoftChannel/72342371961929728/20030826/1724151.shtml
http://www.yesky.com/SoftChannel/72342371961929728/20030830/1725013.shtml

[lashzl]

谢谢！谢谢！

[yuwangjiang]

各位 不好意思 我不知道在那里提问 有个关于URLCONNECTION的问题

urlconnection下载多框架网页

请问哪位专家 用urlconnection下载多框架网页 怎么实现
http请求头里有多框架设置么 jdk1.4支持么

[iversonxk]

A URLConnection with support for HTTP-specific features. See the spec for details.

Each HttpURLConnection instance is used to make a single request but the underlying network connection to the HTTP server may be transparently shared by other instances. Calling the close() methods on the InputStream or OutputStream of an HttpURLConnection after a request may free network resources associated with this instance but has no effect on any shared persistent connection. Calling the disconnect() method may close the underlying socket if a persistent connection is otherwise idle at that time.