android断点续传实现方案之三

URL url = new URL("http://www.sjtu.edu.cn/down.zip");
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection();   

// 设置 User-Agent
httpConnection.setRequestProperty("User-Agent","NetFox");
// 设置断点续传的开始位置
httpConnection.setRequestProperty("RANGE","bytes=2000070");
// 获得输入流
InputStream input = httpConnection.getInputStream();