NSURL *url = [[NSURL alloc] initFileURLWithPath:path];
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    [manager.requestSerializer setValue:@"multipart/form-data" forHTTPHeaderField:@"Content-Type"];
    
    [manager.requestSerializer setValue:@"" forHTTPHeaderField:@"User-Agent"];
    //2.上傳文件,在這里我們還要求傳別的參數(shù)坷牛，用字典保存一下很澄，不需要的童鞋可以省略此步驟
    
    NSString *urlString = UpLoadUrl;

    //    //post請求
    [manager POST:urlString parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {
        NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
        formatter.dateFormat   = @"yyyyMMddHHmmss";
        NSString *str = [formatter stringFromDate:[NSDate date]];
        NSString *fileName = [NSString stringWithFormat:@"%@.mp3", str];
        /*
         此方法參數(shù)
         1. 要上傳的[二進(jìn)制數(shù)據(jù)]
         2. 我這里的imgFile是對應(yīng)后臺給你url里面的圖片參數(shù)甩苛，別瞎帶。
         3. 要保存在服務(wù)器上的[文件名]
         4. 上傳文件的[mimeType]
         */
        [formData appendPartWithFileURL:url name:@"mfile"  fileName:fileName mimeType:@"application/octet-stream" error:nil];
    } progress:^(NSProgress * _Nonnull uploadProgress) {
        float progress =  1.0 * uploadProgress.completedUnitCount/uploadProgress.totalUnitCount;
        NSLog(@"上傳進(jìn)度%f",progress);
    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        NSString *mediaID = [responseObject objectForKey:@"mediaid"];
        NSString* urlStr= [NSString stringWithFormat:@"%@/%@",DownLoadUrl,mediaID];
        
        if (your.length <36) {
            [vc sendMessageWithContent:urlStr localUrl:path type:type realTime:timeStamp];
        }else{
            JFGroupChatController *groupVC = [[JFGroupChatController alloc]init];
            [groupVC sendMessageWithContent:urlStr localUrl:path type:type realTime:timeStamp];
        }
    }
          failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
              NSLog(@"請求失斁杵取：%@",error);
    }];