如何使用java从磁力链接创建torrent文件？ [英] How to create torrent file from magnet link using java?
问题描述
所以我想开发一个新的Java项目，将磁体URI转换成.torrent文件，但是我找不到办法，基本上我把磁铁URI分成几块：
So I wanted to work on a new Java project that converts magnet URIs into .torrent files, however I can't find a way to do that, basically I broke a magnet URI into pieces :
使用的URI：
magnet:?xt=urn:btih:d2474e86c95b19b8bcfdb92bc12c9d44667cfa36&dn=Leaves+of+Grass+by+Walt+Whitman.epub&tr=udp%3A%2F%2Ftracker.example4.com%3A80&tr=udp%3A%2F%2Ftracker.example5.com%3A80&tr=udp%3A%2F%2Ftracker.example3.com%3A6969&tr=udp%3A%2F%2Ftracker.example2.com%3A80&tr=udp%3A%2F%2Ftracker.example1.com%3A1337
分解：
磁铁：？
magnet:?
xt = urn：btih：d2474e86c95b19b8bcfdb92bc12c9d44667cfa36
xt=urn:btih:d2474e86c95b19b8bcfdb92bc12c9d44667cfa36
dn = + + + + + + + + Walt + Whitman .epub
dn=Leaves+of+Grass+by+Walt+Whitman.epub
tr = udp％3A％2F％2Ftracker.example4.com％3A80
tr=udp%3A%2F%2Ftracker.example4.com%3A80
tr = udp ％3A％2F％2Ftracker.example5.com％3A80
tr=udp%3A%2F%2Ftracker.example5.com%3A80
tr = udp％3A％2F％2Ftracker.example3.com％3A6969
tr=udp%3A%2F%2Ftracker.example3.com%3A6969
tr = udp％3A％2F％2Ftracker.example2.com％3A80
tr=udp%3A%2F%2Ftracker.example2.com%3A80
tr = udp％3A ％2F％2Ftracker.example1.com％3A1337
tr=udp%3A%2F%2Ftracker.example1.com%3A1337
来自我收集的此链接，torrent文件包含所需文件的文件，长度和路径，但我似乎无法从磁体URI获取。
from what I gathered using this link, The torrent file contains the files , lengths and paths of the required files but I can't seem to get that from the magnet URI.
提前致谢。
推荐答案
重建不可能仅来自磁铁链接的.torrent文件。
It's impossible to recreate the .torrent file from the magnet link alone.
torrent客户从磁力链接获取.torrent文件的方式是：
The way torrent clients gets the .torrent file from a magnet link is:
- 从跟踪器和/或DHT获取对等列表。
- 使用
BEP9 - 对等方发送元数据文件的扩展。
- Get a peer list from the tracker(s) and/or from the DHT.
- Connect to peers and download the .torrent metadata using
BEP9 - Extension for Peers to Send Metadata Files.
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