iOS 上传multipart/form-data格式文件

AFHTTPSessionManager *session = [AFHTTPSessionManager manager];
[session.requestSerializer setValue:@"multipart/form-data" forHTTPHeaderField:@"Content-Type"];
[session POST:@"YOUR URL PATH" parameters:param constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData){
    NSData *data = [[NSData alloc] initWithContentsOfFile:path];
    [formData appendPartWithFileData :data name:@"content" fileName:@"928-1" mimeType:@"multipart/form-data"];
} progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nonnull responseObject){
    success();
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error){
    fail();
}];