java传输文件暂停_java – 在文件下载中实现暂停/恢复
我試圖在我的下載管理器中實現暫停/恢復，我搜索網頁并閱讀幾篇文章，并根據他們修改代碼，但恢復似乎無法正常工作，任何想法？
if (!downloadPath.exists())
downloadPath.mkdirs();
if (outputFileCache.exists())
{
downloadedSize = outputFileCache.length();
connection.setAllowUserInteraction(true);
connection.setRequestProperty("Range", "bytes=" + downloadedSize + "-");
connection.setConnectTimeout(14000);
connection.connect();
input = new BufferedInputStream(connection.getInputStream());
output = new FileOutputStream(outputFileCache, true);
input.skip(downloadedSize); //Skip downloaded size
}
else
{
connection.setConnectTimeout(14000);
connection.connect();
input = new BufferedInputStream(url.openStream());
output = new FileOutputStream(outputFileCache);
}
fileLength = connection.getContentLength();
byte data[] = new byte[1024];
int count = 0;
int __progress = 0;
long total = downloadedSize;
while ((count = input.read(data)) != -1 && !this.isInterrupted())
{
total += count;
output.write(data, 0, count);
__progress = (int) (total * 100 / fileLength);
}
output.flush();
output.close();
input.close();
總結
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