AFNetworking with AFJSONRequestOperation and filedata never completes
我正在使用 AFNetworking 将 json 数据发布到我的网络服务并获得 json 响应。但是现在我还想将多部分表单数据添加到这些 POST 中。如果我这样做(即使没有我首先添加的参数),完成块永远不会触发。进度块确实触发,我可以看到文件正确上传。
有人有使用 AFNetworking 发布此类图像的经验吗?我正在使用最新的 AFNetworking 源/版本。
这是我发布带有 json 的字典的初始代码。这很好用。
1 2 3 4 5 6 7 8 9 10 | NSMutableDictionary *postdata = [[NSMutableDictionary alloc] init]; [postdata setObject:[postdictionary JSONString] forKey:@"request"]; NSMutableURLRequest *jsonRequest = [httpClient requestWithMethod:@"POST" path:path parameters:postdata]; AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:jsonRequest success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {// Success} failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {// Failure }]; [operation start]; |
这是提交图片的代码版本(不起作用)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | NSMutableURLRequest *jsonRequest jsonRequest = [httpClient multipartFormRequestWithMethod:@"POST" path:path parameters:postdata constructingBodyWithBlock: ^(id <AFMultipartFormData> formData) { [formData appendPartWithFileData:imageData name:@"photo" fileName:@"photo.jpg" mimeType:@"image/jpeg"]; [formData throttleBandwidthWithPacketSize:5000 delay:0.1]; }]; AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:jsonRequest]; [operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) { NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite); }]; [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"Upload succes"); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Upload failed"); }]; [operation start]; |
我在许多应用程序上使用此代码并且没有遇到任何问题(注意我使用的是 AFJSONRequestOperation 和 AFRestClient)
设置请求
1 2 3 4 5 6 7 8 9 | // I have a shared singleton in a separate file APIClient.h AFRESTClient *httpClient = [APIClient sharedClient]; NSURLRequest *request = [httpClient multipartFormRequestWithMethod:@"POST" path:method parameters:params constructingBodyWithBlock: ^(id <AFMultipartFormData> formData) {[formData appendPartWithFileData:imageData name:@"image" fileName:@"image.png" mimeType:@"image/png"]; }]; |
然后是操作,
1 | AFJSONRequestOperation *operation = [[AFJSONRequestOperation alloc] initWithRequest:request]; |
我的进度块
1 2 3 4 5 6 7 | [operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) { NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite); CGFloat progress = ((CGFloat)totalBytesWritten) / totalBytesExpectedToWrite * 100; [SVProgressHUD showProgress:50 status:[NSString stringWithFormat:@"%0.1f %%", progress]]; }]; |
成功块(我的 API 返回 stat -ok 或失败,然后是数据(与 flickr API 相同)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id response) { NSLog(@"response string: %@", operation.responseString); NSString *resultStat = [response objectForKey:@"stat"]; if ([resultStat isEqualToString:@"ok"]) { //success // do something with your data that is returned from the API } else { //error NSLog(@"Data Error: %@", response); } } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Error: %@", [error localizedDescription]); }]; [httpClient enqueueHTTPRequestOperation:operation]; |
看不到您的代码有任何问题,可能性很小:
尝试设置较短的超时间隔并检查请求是否完成
[请求 setTimeoutInterval:5];
还尝试注释掉节流线,看看它是否有任何改变