close是否会抛出IOException？ [英] Does close ever throw an IOException?

问题描述

在这里提供了一些答案并阅读了一些评论之后，实际上似乎IOException永远不会在文件I / O关闭时抛出。

After providing some answers here, and reading some comments, it would seem that, in practice IOException is never thrown on close for file I/O.

是否有在Stream / Reader / Writer上调用close实际抛出IOException的任何情况？

Are there any cases in which calling close on a Stream/Reader/Writer actually throws an IOException?

如果实际抛出异常，应如何处理？

If an exception is actually thrown, how should it be dealt with?

推荐答案

对于文件，你可能看不到关闭（）经常抛出的IOException，但你肯定会看到非文件I / O喜欢关闭网络套接字。

For files, you may not see IOException thrown often on close(), but you'll definitely see it for non-File I/O like closing sockets to the network.

这是一个Java错误的示例，其中关闭UDP套接字最终导致抛出IOException。

Here's an example of a Java bug where closing a UDP socket eventually caused an IOException to be thrown.

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