Objective c copyItemAtPath始终失败,文件存在错误
我正在尝试使用copyItemAtPath复制目录,但每次复制失败时都会出现“操作无法完成。文件存在”错误 这是我正在使用的代码Objective c copyItemAtPath始终失败,文件存在错误,objective-c,cocoa,nsfilemanager,Objective C,Cocoa,Nsfilemanager,我正在尝试使用copyItemAtPath复制目录,但每次复制失败时都会出现“操作无法完成。文件存在”错误 这是我正在使用的代码 NSLog(@"Copying from: %@ to: %@", [[NSUserDefaults standardUserDefaults] objectForKey:@"template_1_path"], path); if(![file_manager copyItemAtPath:[NSString stringWithFormat:@"%@", [[NS
NSLog(@"Copying from: %@ to: %@", [[NSUserDefaults standardUserDefaults] objectForKey:@"template_1_path"], path);
if(![file_manager copyItemAtPath:[NSString stringWithFormat:@"%@", [[NSUserDefaults standardUserDefaults] objectForKey:@"template_1_path"]] toPath:[NSString stringWithFormat:@"%@", path] error:&error]) {
NSLog(@"%@" [error localizedDescription]);
}
日志示例-
"Copying from: /Users/testuser/Sites/example_site to: /Users/testuser/Desktop"
"The operation couldn’t be completed. File exists"
你知道我做错了什么吗
提前谢谢 您似乎试图将文件“/Users/testuser/Sites/example\u site”复制到文件“/Users/testuser/Desktop/example\u site”,假设您只需指定目标目录,它将使用源文件名。这是行不通的。引述: 复制文件时,目标路径必须以文件名结尾,因为源文件名没有隐式采用
您正在尝试复制具有相同文件名的内容。试着这样做:
- (BOOL)copyFolderAtPath:(NSString *)sourceFolder toDestinationFolderAtPath:(NSString*)destinationFolder {
//including root folder.
//Just remove it if you just want to copy the contents of the source folder.
destinationFolder = [destinationFolder stringByAppendingPathComponent:[sourceFolder lastPathComponent]];
NSFileManager * fileManager = [ NSFileManager defaultManager];
NSError * error = nil;
//check if destinationFolder exists
if ([ fileManager fileExistsAtPath:destinationFolder])
{
//removing destination, so soucer may be copied
if (![fileManager removeItemAtPath:destinationFolder error:&error])
{
NSLog(@"Could not remove old files. Error:%@",error);
[error release];
return NO;
}
}
error = nil;
//copying destination
if ( !( [ fileManager copyItemAtPath:sourceFolder toPath:destinationFolder error:&error ]) )
{
NSLog(@"Could not copy report at path %@ to path %@. error %@",sourceFolder, destinationFolder, error);
[error release];
return NO;
}
return YES;
}