个人认为,JSP程序是不可以实现的.
因为对xxx.blogcn.com的处理并不是由www.blogcn.com来完成的.你可以看一下我ping这几个地址时,产生的结果:
Microsoft Windows [版本 5.2.3790]
(C) 版权所有 1985-2003 Microsoft Corp.
C:\Documents and Settings\Administrator>ping xiaowang.blogcn.com
Pinging b.blogcn.z.cdn20.com [125.221.46.209] with 32 bytes of data:
Reply from 125.221.46.209: bytes=32 time=17ms TTL=51
Reply from 125.221.46.209: bytes=32 time=17ms TTL=51
Reply from 125.221.46.209: bytes=32 time=17ms TTL=51
Reply from 125.221.46.209: bytes=32 time=17ms TTL=51
Ping statistics for 125.221.46.209:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 17ms, Maximum = 17ms, Average = 17ms
C:\Documents and Settings\Administrator>ping xiaoli.blogcn.com
Pinging b.blogcn.z.cdn20.com [125.221.46.210] with 32 bytes of data:
Reply from 125.221.46.210: bytes=32 time=17ms TTL=51
Reply from 125.221.46.210: bytes=32 time=17ms TTL=51
Reply from 125.221.46.210: bytes=32 time=17ms TTL=51
Reply from 125.221.46.210: bytes=32 time=17ms TTL=51
Ping statistics for 125.221.46.210:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 17ms, Maximum = 17ms, Average = 17ms
C:\Documents and Settings\Administrator>tracert www.blogcn.com
Tracing route to www.blogcn.z.cdn20.com [125.221.46.209]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 219.228.125.254
2 1 ms <1 ms <1 ms 10.19.68.249
3 1 ms 1 ms 1 ms 10.3.2.73
4 1 ms 1 ms 1 ms 10.3.2.41
5 1 ms 1 ms 1 ms 10.3.0.10
6 1 ms 2 ms 1 ms 202.120.201.205
7 2 ms 2 ms 1 ms 202.120.201.198
8 2 ms 1 ms 1 ms 202.112.53.189
9 8 ms 7 ms 7 ms 202.112.53.137
10 8 ms 8 ms 7 ms 202.112.36.250
11 18 ms 18 ms 17 ms 202.112.53.109
12 17 ms 45 ms 40 ms 202.112.53.110
13 18 ms 17 ms 17 ms 125.221.46.253
14 18 ms 17 ms 17 ms 125.221.46.209
HTTP/1.0 400 Bad Request
Server: Cdn Cache Server V2.0
Date: Tue, 22 Jul 2008 10:03:02 GMT
Content-Type: text/html
Content-Length: 1405
Expires: Tue, 22 Jul 2008 10:03:02 GMT
Via: 1.0 hzkd209:80 (Cdn Cache Server V2.0)
Proxy-Connection: close
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML> <HEAD>
<META
HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=gb2312">
...省略