我的目標(biāo)是創(chuàng)建(或使用現(xiàn)有)一個(gè)InputStream實(shí)現(xiàn)(比如MergeInputStream)，它將嘗試從多個(gè)InputStream中讀取并返回第一個(gè)結(jié)果。 之后，它將釋放鎖定并停止從所有InputStreams讀取，直到下一次mergeInputStream.read()調(diào)用。 我很驚訝我沒有找到任何這樣的工具。 問題是：所有的源InputStream都不是很有限(例如，不是文件，而是System.in，socket等)，所以我不能使用SequenceInputReader。 我知道這可能需要一些多線程機(jī)制，但我完全不知道該怎么做。 我試著谷歌但沒有結(jié)果。

My goal is to create (or use existing) an InputStream implementation (say, MergeInputStream) that will try to read from a multiple InputStreams and return the first result. After that it will release lock and stop reading from all InputStreams until next mergeInputStream.read() call. I was quite surprised that I didn't found any such tool. The thing is: all of the source InputStreams are not quite finite (not a file, for example, but a System.in, socket or such), so I cannot use SequenceInputReader. I understand that this will probably require some multi-thread mechanism, but I have absolutely no idea how to do it. I tried to google it but with no result.

原文：https://stackoverflow.com/questions/3931199

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