测试了没有问题。。。
2007-07-19 11:56:21.671 正在连接 dl4.ohshare.com:80
2007-07-19 11:56:21.671 正在连接 66.45.255.227:80
2007-07-19 11:56:22.171 已连接
2007-07-19 11:56:22.171 GET /d/209878/1184817549/_12298_21464_24418_37329_21018_12299_20154_29289_26723_26696_652.pdf HTTP/1.1
2007-07-19 11:56:22.171 Host: dl4.ohshare.com
2007-07-19 11:56:22.171 Accept: */*
2007-07-19 11:56:22.171 User-Agent: Mozilla/4.0 (compatible; MSIE 5.00; Windows 98)
2007-07-19 11:56:22.171 Connection: Keep-Alive
2007-07-19 11:56:24.703 HTTP/1.1 200 OK
2007-07-19 11:56:24.703 Date: Thu, 19 Jul 2007 03:59:16 GMT
2007-07-19 11:56:24.703 Server: Apache/1.3.37 (Unix) PHP/4.3.11 mod_ssl/2.8.28 OpenSSL/0.9.7a
2007-07-19 11:56:24.703 X-Powered-By: PHP/4.3.11
2007-07-19 11:56:24.703 Set-Cookie: PHPSESSID=a99c7e75a4d0c056c3f7c7ecf5770fbb; path=/
2007-07-19 11:56:24.703 Expires: Thu, 19 Nov 1981 08:52:00 GMT
2007-07-19 11:56:24.703 Cache-Control: must-revalidate, post-check=0, pre-check=0
2007-07-19 11:56:24.703 Pragma: no-cache
2007-07-19 11:56:24.703 Content-Length: 20366756
2007-07-19 11:56:24.703 Content-Disposition: attachment; filename=_12298_21464_24418_37329_21018_12299_20154_29289_26723_26696_652.pdf
2007-07-19 11:56:24.703 Keep-Alive: timeout=1, max=500
2007-07-19 11:56:24.703 Connection: Keep-Alive
2007-07-19 11:56:24.703 Content-Type: application/octet-stream
2007-07-19 11:56:24.718 开始接收数据