无法读取数据，因为它的格式不正确。”

Question

]2我正在使用 AFNetworking 将数据发送到 server.Below 是我的代码：

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
    [manager setRequestSerializer:[AFJSONRequestSerializer serializer]];
    [manager setResponseSerializer:[AFJSONResponseSerializer serializer]];
    [manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];


    NSMutableDictionary *dict = [[NSMutableDictionary alloc]init];

    [dict setValue:[[arrLoginDetails objectAtIndex:0] objectForKey:@"id"] forKey:@"user_id"];

    [dict setValue:[[arrLoginDetails objectAtIndex:0] objectForKey:@"id"] forKey:@"shipper_id"];

    [dict setValue:strUuid forKey:@"imageOrderId"];

    [dict setValue:@"1" forKey:@"type"];

    NSData * imageData = UIImageJPEGRepresentation([aryImages objectAtIndex:0], 0.7);


   if([imageData length]>0){
    NSString *base64String = [imageData base64EncodedStringWithOptions:0];


    if([base64String length]>0){
    [dict setValue:base64String forKey:@"file_path"];

       NSString * reqFormat= [NSString stringWithFormat:@"%@&email=%@&dev_id=%@",UploadImage,[[arrLoginDetails objectAtIndex:0] objectForKey:@"email"],APP_DELEGATE.stringDeviceID];

 [manager POST:reqFormat parameters:dict1 success:^(AFHTTPRequestOperation *operation, id responseObject)
     {
  }failure:^(AFHTTPRequestOperation *operation, NSError *error)
     {
         NSLog(@"error:%@",error.debugDescription);

 }

以下是我收到的错误：

数据格式不正确，无法读取。

错误:

错误：错误域=NSCocoaErrorDomain 代码=3840 "No value." UserInfo={NSDebugDescription=无值。}

如果我 nslog error.debugdescription 我得到 "The data couldn't be read because it isn't in the correct format."

请帮我解决这个错误。

谢谢。

Answer 1

试试下面的代码：

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

AFJSONRequestSerializer *serializer = [AFJSONRequestSerializer serializer];
[serializer setStringEncoding:NSUTF8StringEncoding];

manager.requestSerializer=serializer;
manager.responseSerializer.acceptableContentTypes= [NSSet setWithObjects:@"text/html",@"application/json", nil];

 [manager POST:reqFormat parameters:dict1 progress:nil success:^(NSURLSessionTask *task, id responseObject)
     {
         //Print response
     } failure:^(NSURLSessionTask *operation, NSError *error) {
         //Print error
     }];

在 AFNetworking 3.0 中，AFHTTPRequestOperationManager 被替换为 AFHTTPSessionManager。

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Answer 2

其实出现这个问题主要有两个原因

当你的参数错误时。表示错误的值或缺少参数。
检查你的 URL。有时它发生的原因是你的错误 URL.

我出于同样的原因两次遇到同样的问题。

无法读取数据，因为它的格式不正确。”

The data couldn't be read because it isn't in the correct format."

iphone

objective-c

nsdata

ios

afnetworking-3