http://www.androidla.net/index.php/2011/05/19/android-socket-tcpudp/

http://www.cnblogs.com/harrisonpc/archive/2011/03/31/2001565.html

http://hi.baidu.com/gk14/blog/item/a25c0e463fbc1a056a63e52c.html

http://blog.xuite.net/ffc99a3b/ooxx/42960121-%5B%E8%BD%89%E8%BC%89%5DAndroid+UDP+Broadcast+Socket

http://blog.sina.com.cn/s/blog_6c0a8fbb0100s3k5.html#