Question

我有从服务器下载图像数组的问题，如果我在服务器上有100张图像意味着我应该使用“AFImageRequestOperation”下载所有图像，而下载过程中一些图像下载成功但很多图像因为“ TimeOut“来自服务器的错误，

我使用以下方式下载图像：

 NSURL *url = [NSURL URLWithString:kBaseURLString];
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
[httpClient setAuthorizationHeaderWithUsername:[[NSUserDefaults standardUserDefaults] stringForKey:kUserDefaultKeyUsername]
                                      password:[[NSUserDefaults standardUserDefaults] stringForKey:kUserDefaultKeyPassword]];

for( int i = 0; i < [self.downloadImageList count]; i++ ) {

    NSString *filename = [[NSString alloc] initWithString:[self.downloadImageList objectAtIndex:i]];
    NSMutableURLRequest *urlRequest = [httpClient multipartFormRequestWithMethod:@"POST"
                                                                            path:@"/xxx/yyyyyyyyyy/getImage"
                                                                      parameters:nil
                                                       constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {

                                                           [formData appendPartWithFormData:[filename dataUsingEncoding:NSUTF8StringEncoding]
                                                                                       name:kFormNameFile];

                                                       }];

    AFImageRequestOperation *requestOperation = [[AFImageRequestOperation alloc] initWithRequest:urlRequest];
    [requestOperation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {

        [self updateSyncClientUIDelegateProgress:(totalBytesRead/totalBytesExpectedToRead) andLabel:@"Downloading Images"];
    }];

    [requestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {


        if( [[urlRequest URL] isEqual:[[operation request] URL]] ) {

            dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
                UIImage *image = responseObject;
                NSLog(@"Downloading  image %@",image);

                [UIImagePNGRepresentation(image) writeToFile:[syncedImagesPath stringByAppendingPathComponent:filename] atomically:YES];
            });

        }
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

        if( [[operation response] statusCode] == 404 ) {
            return;
        }
        NSLog(@"failure BLOCK %@",error);
        NSLog(@"failure error code %ld",(long)[error code]);



        if( [error code] != NSURLErrorCannotDecodeContentData ) {

            [self cancelSyncFromFailure];
        }

    }];

最后我收到许多图像请求的错误（NSURLErrorDomain Code = -1001“请求超时。”），

Error Report:   Domain=NSURLErrorDomain Code=-1001 "The request timed out." UserInfo=0x155ef3b0 {NSErrorFailingURLStringKey=http://integration.xxx.com/yyy/zzz/getImage, NSErrorFailingURLKey=http://xxxx.yyy.com/xxx/yyyyy/getImage, NSLocalizedDescription=The request timed out., NSUnderlyingError=0x1683e130 "The request timed out."}

请帮我解决这个问题，以及我应该如何解决这个问题，谢谢

Answer 1

如果钢铁有问题，请尝试增加超时值，在创建requestOperation

之前添加此行

[urlRequest setTimeoutInterval:120]; // increase if use slow network/server

AFImageRequestOperation获取“请求超时”。错误

1 个答案: