写入新文件时自动创建整个路径 [英] Create whole path automatically when writing to a new file

问题描述

我想用 FileWriter.我是这样用的:

I want to write a new file with the FileWriter. I use it like this:

FileWriter newJsp = new FileWriter("C:\userDesktopdir1dir2filename.txt");

现在 dir1 和 dir2 当前不存在.如果它们不存在，我希望 Java 自动创建它们.实际上Java应该设置完整的文件路径，如果不存在的话.

Now dir1 and dir2 currently don't exist. I want Java to create them automatically if they aren't already there. Actually Java should set up the whole file path if not already existing.

我怎样才能做到这一点?

How can I achieve this?

推荐答案

类似:

File file = new File("C:\user\Desktop\dir1\dir2\filename.txt");
file.getParentFile().mkdirs();
FileWriter writer = new FileWriter(file);

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