java - 使用 UTF-8 编码创建并写入文件

Question

这是我的 Java 代码。

File file = new File(path);
StringWriter sw = new StringWriter();
//Do something.
out.println(sw.toString()); //Works fine; prints.
try {
        FileUtils.writeStringToFile(file, sw.toString(), "UTF-8");
    } catch (IOException e) {
        throw new RuntimeException( e );
    }

我还没有创建文件，执行后也没有创建它。我怎样才能做到这一点？

Answer 1

参见File.createNewFile() .

Atomically creates a new, empty file named by this abstract pathname if and only if a file with this name does not yet exist. ..

正如@JohnWatts 在评论中提到的:

..both PrintWriter and your code create the file, but pre-1.3 FileUtils.writeStringToFile does not.