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当当价格系统设计实现，王启军，当当网架构师。

断点续传java实现

java实现断点续传 private void setHeader(URLConnection con) { con .setRequestProperty( "User-Agent", "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.3) Gecko/2008092510 Ubuntu/8.04 (hardy) Firefox/3.0.3"); con.setRequestProperty("Accept-Language", "en-us,en;q=0.7,zh-cn;q=0.3"); con.setRequestProperty("Accept-Encoding", "aa"); con.setRequestProperty("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7"); con.setRequestProperty("Keep-Alive", "300"); con.setRequestProperty("Connection", "keep-alive"); con.setRequestProperty("If-Modified-Since", "Fri, 02 Jan 2009 17:00:05 GMT"); con.setRequestProperty("If-None-Match", "\"1261d8-4290-df64d224\""); con.setRequestProperty("Cache-Control", "max-age=0"); con.setRequestProperty("Referer", "http://www.skycn.com/soft/14857.html"); }