使用AFNetworlk上传多张图片

-(void)uploadPictureFirst:(NSArray*)imgArray{

if ([imgArray count]>0) {

NSMutableDictionary*param=[NSMutableDictionary dictionary];

[param setValue:[NSNumber numberWithInteger:UPLOAD_FILE_TYPE_CAR] forKey:@"UploadPicType"];

NSString*urlStr=[NSString stringWithFormat:@"%@%@",BASE_API_URL,UPLOAD_PICTURE_INFO_API_URL];

NSMutableArray *mutableOperations = [NSMutableArray array];

for (UIImage*img in imgArray) {

NSURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:urlStr parameters:param constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

int random1=[util getOneRandomInteger];

int random2=[util getOneRandomInteger];

NSString*fileName=[NSString stringWithFormat:@"%d%d.jpg",random1,random2];

NSData*data=UIImageJPEGRepresentation(img, 0.5);

[formData appendPartWithFileData:data name:UPLOAD_FILE_NAME_KEY fileName:fileName mimeType:@"image/jpeg"];

}];

AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];

[mutableOperations addObject:operation];

}

NSArray *operations = [AFURLConnectionOperation batchOfRequestOperations:mutableOperations progressBlock:^(NSUInteger numberOfFinishedOperations, NSUInteger totalNumberOfOperations) {

} completionBlock:^(NSArray *operations) {

//以下是处理返回结果

for(AFHTTPRequestOperation*operation in operations){

NSDictionary*dict=[NSJSONSerialization JSONObjectWithData:operation.responseData options:NSJSONReadingMutableContainers error:nil];

NSArray*temp=[dict valueForKey:@"results"];

if (temp!=nil&&[temp count]>0) {

[imgPathArray addObject:[temp objectAtIndex:0]];

}

}

[self realSubmit];

}];

[[NSOperationQueue mainQueue] addOperations:operations waitUntilFinished:NO];

}

}