下载文件阻塞的问题

[a5114122]

用这段代码，想下载文件，但是下了几kb就不下了,求大神解答

public static void downloadFile(String remoteFilePath, String localFilePath){
URL urlfile = null;
HttpURLConnection httpUrl = null;
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
File f = new File(localFilePath);
try
{
urlfile = new URL(remoteFilePath);
httpUrl = (HttpURLConnection)urlfile.openConnection();
httpUrl.connect();

bis = new BufferedInputStream(httpUrl.getInputStream());
bos = new BufferedOutputStream(new FileOutputStream(f));
int len = 1024;
byte[] b = new byte[len];
while ((len = bis.read(b)) != -1)
{
bos.write(b, 0, len);
}
System.out.println("上传成功");
bos.flush();
bis.close();
httpUrl.disconnect();
}
catch (Exception e)
{
e.printStackTrace();
}
finally
{
try
{
bis.close();
bos.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
}

public static void main(String[] args) {
String remoteFilePath="http://admin.geely.com/videoFile/geelyxingxiang.flv";
String localFilePath="d:/c.flv";
downloadFile(remoteFilePath,localFilePath);
}

[sjjk]

int len = 1024; byte[] b = new byte[len]; while ((len = bis.read(b)) != -1) { bos.write(b, 0, len); } 这段有问题，改成 int content = -1; int len = 1024; byte[] b = new byte[len]; while ((content = bis.read(b)) != -1) { bos.write(b, 0, content ); }