<proxy>
<id>optional</id>
<active>true</active>
<protocol>http</protocol>
<!-- <username>proxyuser</username>
<password>proxypass</password> -->
<host>ip</host>
<port>port</port>
<nonProxyHosts>localhost</nonProxyHosts>
</proxy>
原文：http://www.cnblogs.com/drizzlewithwind/p/5524050.html