web.config 配置代理访问

<!-- web.config 配置代理访问  -->
<system.net>
  <defaultProxy >
    <proxy usesystemdefault="True" proxyaddress="http://192.168.102.3"  bypassonlocal="True"/>
  </defaultProxy>
  <settings>
    <servicePointManager expect100Continue="false" />
  </settings>
</system.net>

原文链接

http://msdn.microsoft.com/en-us/library/aa903369(v=VS.71).aspx