请问URLConnection如何使用proxy?

Question

System.getProperties().put( "proxySet", "true" );
System.getProperties().put( "proxyHost", "myProxyMachineName" );
System.getProperties().put( "proxyPort", "1080" );

Answer 1

System.setProperties( "proxySet", "true" );
System.setProperties( "proxyHost", "myProxyMachineName" );
System.setProperties( "proxyPort", "1080" );

Answer 2

System.setProperty( "proxySet", "true" );
System.setProperty( "proxyHost", "myProxyMachineName" );
System.setProperty( "proxyPort", "1080" );

Answer 3

http://www.csdn.net/expert/topic/1011/1011329.xml?temp=.8813745