使用七牛上传图片代码，导入文件常遇问题解决方法

http://kb.qiniu.com/5t06228o

七牛上传图片代码如下

QNUploadManager *upManager = [[QNUploadManager alloc] init];

//为七牛上所给的"链接 + / "

//_token 为七牛所给的token

NSMutableString *stringURL = [NSMutableString stringWithString:@""];

UIImage *image = info[@"UIImagePickerControllerEditedImage"];

/*info中包括选取的照片，视频的主要信息

NSString *const UIImagePickerControllerMediaType; 选取的类型 public.image public.movie

NSString *const UIImagePickerControllerOriginalImage; 修改前的UIImage object.

NSString *const UIImagePickerControllerEditedImage; 修改后的UIImage object.

NSString *const UIImagePickerControllerCropRect; 原始图片的尺寸NSValue object containing a CGRect data type

NSString *const UIImagePickerControllerMediaURL; 视频在文件系统中 的 NSURL地址

*/

NSString *fileName = [NSString stringWithFormat:@"%@_%@.jpg", [self getDateTimeString], [self randomStringWithLength:8]];

NSData *data = [image resizedAndReturnData];

[upManager putData:data

key:fileName

token:_token

complete: ^(QNResponseInfo *info, NSString *key, NSDictionary *resp) {

// NSLog(@" --->> Info: %@ ", info);

// NSLog(@" ---------------------");

// NSLog(@" --->> Response: %@, ", resp);

//拼接成返回的图片的外部链接

[stringURL appendString:key];

[_pictureButton sd_setBackgroundImageWithURL:[NSURL URLWithString:stringURL] forState:UIControlStateNormal];

[picker dismissViewControllerAnimated:YES completion:^{

}];

} option:nil];

#pragma mark - 获取上传时间 （拼接成图片名称）

- (NSString *)getDateTimeString

{

NSDateFormatter *formatter;

NSString *dateString;

formatter = [[NSDateFormatter alloc] init];

[formatter setDateFormat:@"yyyy-MM-dd_HH:mm:ss"];

dateString = [formatter stringFromDate:[NSDate date]];

return dateString;

}

- (NSString *)randomStringWithLength:(int)len

{

NSString *letters = @"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";

NSMutableString *randomString = [NSMutableString stringWithCapacity: len];

for (int i=0; i<len; i++) {

[randomString appendFormat: @"%C", [letters characterAtIndex: arc4random_uniform((int)[letters length])]];

}

return randomString;

}