java - 为什么使用 FileUtils.forceMkdir？

Question

Apache commons-io 中的 FileUtils.forceMkdir 代替 JRE 中内置的 File.mkdirs 有何用途？

forceMkdir 的文档是

Makes a directory, including any necessary but nonexistent parent directories. If a file already exists with specified name but it is not a directory then an IOException is thrown. If the directory cannot be created (or does not already exist) then an IOException is thrown.

虽然 mkdirs 的文档是

Creates the directory named by this abstract pathname, including any necessary but nonexistent parent directories. Note that if this operation fails it may have succeeded in creating some of the necessary parent directories.

唯一的区别是抛出异常的类型吗？

Answer 1

看起来主要区别在于 Apache commons 的实现“更大声”:如果要创建的目录已经存在，但它实际上是一个文件，它将抛出异常。看起来这个想法是包装 JRE 实现，在目录创建失败的情况下返回 false 而不是异常。