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使用HTTPClient使用RestKit 0.20上传文件(File uploads with RestKit 0.20 using HTTPClient)

 我目前正在使用以下代码发布到我的服务器：  
[[[RKObjectManager sharedManager] HTTPClient] postPath:[NSString stringWithFormat:@"%@%@", baseURL, @"/api/v2/track-it/rack/individual"]
                                                    parameters:params
                                                       success:^(AFHTTPRequestOperation *operation, id responseObject) {
                                                           // handle success                                                               
                                                           if([[responseObject[@"result"] lowercaseString] isEqualToString:@"success"]){
                                                               // Entry was added
                                                               UIViewController *otherVC = [[UIStoryboard storyboardWithName:@"App" bundle:nil] instantiateViewControllerWithIdentifier:@"Dashboard"];
                                                               [self presentViewController:otherVC animated:YES completion:nil];

                                                               [self alertWithTitle:@"Track It Entry" message:@"The entry was uploaded successfully"];
                                                           } else {
                                                               // Couldn't add entry
                                                               [self alertWithTitle:@"Track It Entry" message:@"An error occured. Saving entry to upload later."];
                                                           }
                                                       }
                                                       failure:^(AFHTTPRequestOperation *operation, NSError *error) {
                                                           // response code is in operation.response.statusCode
                                                           NSLog(@"ERROR");
                                                       }];
 
 params是值的NSDictionary 。  
 如何上传文件？ 
 我在任何没有使用托管对象的地方都找不到任何示例。 

I am currently using the following code to post to my server: 
[[[RKObjectManager sharedManager] HTTPClient] postPath:[NSString stringWithFormat:@"%@%@", baseURL, @"/api/v2/track-it/rack/individual"]
                                                    parameters:params
                                                       success:^(AFHTTPRequestOperation *operation, id responseObject) {
                                                           // handle success                                                               
                                                           if([[responseObject[@"result"] lowercaseString] isEqualToString:@"success"]){
                                                               // Entry was added
                                                               UIViewController *otherVC = [[UIStoryboard storyboardWithName:@"App" bundle:nil] instantiateViewControllerWithIdentifier:@"Dashboard"];
                                                               [self presentViewController:otherVC animated:YES completion:nil];

                                                               [self alertWithTitle:@"Track It Entry" message:@"The entry was uploaded successfully"];
                                                           } else {
                                                               // Couldn't add entry
                                                               [self alertWithTitle:@"Track It Entry" message:@"An error occured. Saving entry to upload later."];
                                                           }
                                                       }
                                                       failure:^(AFHTTPRequestOperation *operation, NSError *error) {
                                                           // response code is in operation.response.statusCode
                                                           NSLog(@"ERROR");
                                                       }];
 
params is an NSDictionary of values. 
How can I upload files with this?
 I can't find any examples anywhere that aren't using a Managed Object.

原文：https://stackoverflow.com/questions/31865535

更新时间：2022-03-10 06:03

最满意答案

 您需要自定义模型联编程序才能正常工作。 这是您可以开始使用的简化版本：  
public class CsvIntModelBinder : IModelBinder
{
    public bool BindModel(HttpActionContext actionContext, ModelBindingContext bindingContext)
    {
        var key = bindingContext.ModelName;
        var valueProviderResult = bindingContext.ValueProvider.GetValue(key);
        if (valueProviderResult == null)
        {
            return false;
        }

        var attemptedValue = valueProviderResult.AttemptedValue;
        if (attemptedValue != null)
        {
            var list = attemptedValue.Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries).
                       Select(v => int.Parse(v.Trim())).ToList();

            bindingContext.Model = list;
        }
        else
        {
            bindingContext.Model = new List<int>();
        }
        return true;
    }
}
 
 并以这种方式使用它（从路由中删除{ids} ）：  
[HttpGet]
[Route("api/NewHotelData")]
public HttpResponseMessage Get([ModelBinder(typeof(CsvIntModelBinder))] List<int> ids)
 
 如果您想保留{ids}的路线，您应该将客户端请求更改为：  
api/NewHotelData/1,2,3,4
 
 
 另一个选项（ 没有自定义模型绑定）正在将获取请求更改为：  
?ids=1&ids=2&ids=3

You'll need custom model binder to get this working. Here's simplified version you can start work with: 
public class CsvIntModelBinder : IModelBinder
{
    public bool BindModel(HttpActionContext actionContext, ModelBindingContext bindingContext)
    {
        var key = bindingContext.ModelName;
        var valueProviderResult = bindingContext.ValueProvider.GetValue(key);
        if (valueProviderResult == null)
        {
            return false;
        }

        var attemptedValue = valueProviderResult.AttemptedValue;
        if (attemptedValue != null)
        {
            var list = attemptedValue.Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries).
                       Select(v => int.Parse(v.Trim())).ToList();

            bindingContext.Model = list;
        }
        else
        {
            bindingContext.Model = new List<int>();
        }
        return true;
    }
}
 
And use it this way (remove {ids} from route): 
[HttpGet]
[Route("api/NewHotelData")]
public HttpResponseMessage Get([ModelBinder(typeof(CsvIntModelBinder))] List<int> ids)
 
If you want to keep {ids} in route, you should change client request to: 
api/NewHotelData/1,2,3,4
 
 
Another option (without custom model binder) is changing get request to: 
?ids=1&ids=2&ids=3

使用HTTPClient使用RestKit 0.20上传文件(File uploads with RestKit 0.20 using HTTPClient)

最满意答案

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