使用NSData数据流传图片
- 使用数据流上传单张图片 使用的是AFHTTPRequestOperationManager
//上传图片(单张)
+(void)uploadPhotoAndController:(UIViewController *)controller WithSize:(CGSize)size Image:(UIImage*)image AndFinish:(void (^)(NSDictionary *, NSError *))finish
{
//加载提示菊花
MBProgressHUD *hud;
if(controller){
hud = [MBProgressHUD showHUDAddedTo:controller.view animated:YES];
hud.label.text = NSLocalizedString(@"加载中...", @"HUD loading title");
}
//1. 存放图片的服务器地址，这里我用的宏定义
NSString * url = [NSString stringWithFormat:@"%@%@",Hx_Main_heard_API,IMAGE_UPLOAD_URL_API];
//2. 利用时间戳当做图片名字
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
formatter.dateFormat = @"yyyyMMddHHmmss";
NSString *imageName = [formatter stringFromDate:[NSDate date]];
NSString *fileName = [NSString stringWithFormat:@"%@.jpg",imageName];
//3. 图片二进制文件
NSData *imageData = UIImageJPEGRepresentation(image, 0.7f);
NSLog(@"upload image size: %ld k", (long)(imageData.length / 1024));
//4. 发起网络请求
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.requestSerializer = [AFHTTPRequestSerializer serializer];
manager.responseSerializer = [AFJSONResponseSerializer serializer];
[manager POST:url parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
// 上传图片，以文件流的格式，这里注意：name是指服务器端的文件夹名字
[formData appendPartWithFileData:imageData name:@"file" fileName:fileName mimeType:@"image/jpeg"];
} success:^(AFHTTPRequestOperation *operation, id responseObject) {
//上传成功时的回调
[hud hideAnimated:YES];
NSLog(@"%@",responseObject);
finish(responseObject,nil);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
//失败时的回调
[hud hideAnimated:YES];
finish(nil,error);
}];
}
- 使用数据流上传多张图片
// 上传图片（多张）
+(void)uploadPhotoAndController:(UIViewController *)controller WithSize:(CGSize)size Image:(UIImage*)image AndFinish:(void (^)(NSDictionary *, NSError *))finish
{
//加载提示菊花
MBProgressHUD *hud;
if(controller){
hud = [MBProgressHUD showHUDAddedTo:controller.view animated:YES];
hud.label.text = NSLocalizedString(@"加载中...", @"HUD loading title");
}
//1. 存放图片的服务器地址，这里我用的宏定义
NSString * url = [NSString stringWithFormat:@"%@%@",Hx_Main_heard_API,IMAGE_UPLOAD_URL_API];
//2. 发起网络请求
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.requestSerializer = [AFHTTPRequestSerializer serializer];
manager.responseSerializer = [AFJSONResponseSerializer serializer];
[manager POST:url parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData)
{
// 上传多张图片
for(NSInteger i = 0; i < self.imageDataArray.count; i++)
{
//取出单张图片二进制数据
NSData * imageData = self.imageDataArray[i];
// 上传的参数名，在服务器端保存文件的文件夹名
NSString * Name = [NSString stringWithFormat:@"%@%ld", Image_Name, i+1];
// 上传filename
NSString * fileName = [NSString stringWithFormat:@"%@.jpg", Name];
[formData appendPartWithFileData:imageData name:Name fileName:fileName mimeType:@"image/jpeg"];
}
}
success:^(AFHTTPRequestOperation *operation, id responseObject)
{
//上传成功时的回调
[hud hideAnimated:YES];
NSLog(@"%@",responseObject);
finish(responseObject,nil);
}
failure:^(AFHTTPRequestOperation *operation, NSError *error)
{
//失败时的回调
[hud hideAnimated:YES];
finish(nil,error);
}];
}
----分割线-----
使用Base64字符串传图片 使用 AFHTTPSessionManager
NSString *photoString = [_imageDictionary objectForKey:@"图片"];
NSString *urlString = [NSString stringWithFormat:@"上传路径url"];
[_manager POST:urlString parameters:@{@"headImage":photoString} progress:^(NSProgress * _Nonnull uploadProgress) {
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
// 上传成功后把图片保存到本地 也可以不保存 如果直接在这里设置imageview的图片也可以不保存
NSLog(@"上传成功");
// 设置一个图片的存储路径
// NSString *path_sandox = NSHomeDirectory();
//NSString *imagePath = [path_sandox stringByAppendingString:@"/Documents/test.png"];
// 把图片保存到指定路径
NSData *photoData = [[NSData alloc] initWithBase64EncodedString:photoString options:NSDataBase64DecodingIgnoreUnknownCharacters];
UIImage *image = [UIImage imageWithData:photoData];
_imageView.image = image;
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
}];
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{
// 在这里我们可以进行图片的修改,保存,或者视频的保存
UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
// 压缩图片
UIImage *photoIamge = [self resetSizeOfImageData:image maxSize:400];
NSData *data = UIImageJPEGRepresentation(photoIamge, 1.0f);
NSString *photoString = [data base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
[_imageDictionary setObject:photoString forKey:@"图片"];
[self dismissViewControllerAnimated:YES completion:nil];
}
- 压缩图片
- (UIImage *)resetSizeOfImageData:(UIImage *)source_image maxSize:(NSInteger)maxSize
{
//先调整分辨率
CGSize newSize = CGSizeMake(source_image.size.width, source_image.size.height);
CGFloat tempHeight = newSize.height / 1024;
CGFloat tempWidth = newSize.width / 1024;
if (tempWidth > 1.0 && tempWidth > tempHeight) {
newSize = CGSizeMake(source_image.size.width / tempWidth, source_image.size.height / tempWidth);
}
else if (tempHeight > 1.0 && tempWidth < tempHeight){
newSize = CGSizeMake(source_image.size.width / tempHeight, source_image.size.height / tempHeight);
}
UIGraphicsBeginImageContext(newSize);
[source_image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
//调整大小
NSData *imageData = UIImageJPEGRepresentation(newImage,1.0);
// NSUInteger sizeOrigin = [imageData length];
// NSUInteger sizeOriginKB = sizeOrigin / 1024;
while ([imageData length]/1024 > maxSize)
{
imageData = UIImageJPEGRepresentation ([UIImage imageWithData:imageData], 0.50);
}
return [UIImage imageWithData:imageData];
}
参考