java - 我应该关闭使用 java.nio.file.Files.newInputStream 创建的 Streams 吗？

Question

在流教程中，没有提到关闭从 Files.newInputStream(path) 获得的流。只有一些晦涩:

Whether the returned stream is asynchronously closeable and/or interruptible is highly file system provider specific and therefore not specified.

在这种情况下，什么是“异步”？如果我显式关闭流，或者另一个线程异步关闭流？

Answer 1

您绝对必须关闭获得的InputStream，就像所有其他的一样。术语“可异步关闭”指的是在另一个线程因 I/O 操作而阻塞时关闭流的能力。

来自 InterruptibleChannel文档:

A channel that implements this interface is asynchronously closeable: If a thread is blocked in an I/O operation on an interruptible channel then another thread may invoke the channel's close method. This will cause the blocked thread to receive an AsynchronousCloseException.