java - 如何从远程服务器下载文件到本地

Question

比如说我有一个系统，这个系统会每天定点从另一个服务器端下载一个txt文件下来，请大神给条思路，我该用哪些API。刚步入IT的菜鸟不知如何下手

Answer 1

I have seen a friend write a small example using non-blocking I/O before, and I thought it was very cool:

URL website = new URL("http://下载地址");
ReadableByteChannel rbc = Channels.newChannel(website.openStream());
FileOutputStream fos = new FileOutputStream("本地要存储的文件地址");//例如：test.txt
fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);

Although I haven’t tried it, it should be OK.

If it’s timed, it shouldn’t be hard to catch you, right? java.util.Timer should help you