java - 尝试写入文件夹时出现 "java.nio.file.AccessDeniedException"

Question

由于某种原因，每次尝试使用 Tomcat 上的 java webapp 写入计算机上的文件夹时，我都会不断收到 java.nio.file.AccessDeniedException。此文件夹的权限设置为对我计算机上的每个人 (Windows) 进行完全控制。有人知道我为什么会得到这个异常吗？

这是我的代码:

public void saveDocument(String name, String siteID, byte doc[]) {
    try {
        Path path = Paths.get(rootDirectory + siteID);
        if (Files.exists(path)) {
            System.out.println("Exists: " + path.toString());
            Files.write(path, doc);
        } else {
            System.out.println("DOesn't exist");
            throw new Exception("Directory for Site with ID " + siteID + "doesn't exist");
        }
    } catch (FileSystemException e) {
        System.out.println("Exception: " + e);
        e.printStackTrace();
    } catch (IOException e ) {
        System.out.println("Exception: " + e);
        e.printStackTrace();
    } catch (Exception e) {
        System.out.println("Exception: " + e);
        e.printStackTrace();
    }

这是错误:

Exception: java.nio.file.AccessDeniedException: C:\safesite_documents\site1 java.nio.file.AccessDeniedException: C:\safesite_documents\site1 at sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:83) at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:97) at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:102) at sun.nio.fs.WindowsFileSystemProvider.newByteChannel(WindowsFileSystemProvider.java:230) at java.nio.file.spi.FileSystemProvider.newOutputStream(FileSystemProvider.java:430) at java.nio.file.Files.newOutputStream(Files.java:172) at java.nio.file.Files.write(Files.java:3092)

可能的原因:See my post on supersuser about how I can't uncheck 'Read Only' for any of my folders on windows 7. Even though all the folders aren't read only to anything but java.

Answer 1

好吧，事实证明我在做一些愚蠢的事情。我没有将新文件名附加到路径中。

我有

rootDirectory = "C:\\safesite_documents"

但应该是的

rootDirectory = "C:\\safesite_documents\\newFile.jpg" 

对不起，这是一个愚蠢的错误。