java - 本地文件的 java.io.InputStream 何时会在关闭时抛出异常？

Question

大家下午好。我知道如果我们 close()一个java.io.OutputStream , it may throw an IOException当有硬盘错误时。

至于java.io.InputStream , Javamex指出:

A normal closure of a network socket actually involves a closure request (TCP/IP FIN packet) being sent over the connection and waiting for the other end to acknowledge this closure request. (In fact, the other end of the connection then in turn sends a closure request, which the closing end acknowledges.) So in the case of a socket input stream, a closure operation actually involves sending traffic over the connection and the closure can thus fail with an error.

现在我想知道在什么情况下 java.io.InputStream 会(或子类)本地文件(网络访问不需要)曾经在我们调用close()时抛出异常？

Answer 1

这是一种情况:

• 应用程序的另一部分错误地关闭了与 InputStream 关​​联的基础文件描述符。当 Java 运行时调用系统 close() 函数时，它可能会得到一个 EBADF 错误，表明文件句柄无效。

上述情况可能表明应用程序的其他地方存在严重错误。