JavaNIO 下载文件保存本地报java.nio.file.AccessDeniedException:无权限操作
异常代码如下：
/**
* nio下载文件到本地并保存
* @param url
* @param filePath
* @param fileName
*/
public static void downloadByNIO(String url, String filePath, String fileName) {
try (InputStream in = new URL(url).openStream()) {
Path target = Paths.get(filePath, fileName);
Files.createDirectories(target.getParent());
Files.copy(in, target, StandardCopyOption.REPLACE_EXISTING);
} catch (IOException e) {
e.printStackTrace();
}
}
异常信息如下：
java.nio.file.AccessDeniedException:文件路径
解决方法：增加文件的读写权限
/**
* nio下载文件到本地并保存
* @param url
* @param filePath
* @param fileName
*/
public static void downloadByNIO(String url, String filePath, String fileName) {
try (InputStream ins = new URL(url).openStream()) {
Path target = Paths.get(filePath, fileName);
//设置获取全部权限
Set<PosixFilePermission> permissions = PosixFilePermissions.fromString("rwxrwxrwx");
FileAttribute<Set<PosixFilePermission>> fileAttributes = PosixFilePermissions.asFileAttribute(permissions);
Files.createDirectories(target.getParent(),fileAttributes);
Files.copy(ins, target, StandardCopyOption.REPLACE_EXISTING);
} catch (IOException e) {
e.printStackTrace();
}
}
