我正在使用.NET的HttpClient向WebAPI发出请求,该请求返回一些需要在客户端进行一些自定义反序列化的JSON数据。为此,我已经创建了自己的JsonConverter
,但我无法弄清楚如何让ReadAsAsync<T>
方法获得转换器的存在。
我现在已经通过使用ReadAsStringAsync
来读取响应,然后将该字符串传递给JsonConvert.DeserializeObject
来解决我的问题,但似乎应该有一个更优雅的解决方案。
这是我的代码:
public PrefsResponse GetAllPrefs(string sid) {
HttpClient client = CreateHttpClient(null, sid);
var response = client.GetAsync("api/sites/" + sid).Result;
// TODO : find a way to hook custom converters to this...
// return response.Content.ReadAsAsync<PrefsResponse>().Result;
var stringResult = response.Content.ReadAsStringAsync().Result;
return JsonConvert.DeserializeObject<PrefsResponse>(stringResult, new PrefClassJsonConverter());
}
这是我能做的最好的,还是有更优雅的方式?
这也是我正在创建HttpClient的地方,如果那是我需要连接的地方:
private HttpClient CreateHttpClient(CommandContext ctx, string sid) {
var cookies = new CookieContainer();
var handler = new HttpClientHandler {
CookieContainer = cookies,
UseCookies = true,
UseDefaultCredentials = false
};
// Add identity cookies:
if (ctx != null && !ctx.UserExecuting.IsAnonymous) {
string userName = String.Format("{0} ({1})", ctx.RequestingUser.UserName, ctx.UserExecuting.Key);
cookies.Add(new Cookie(__userIdCookieName, userName));
cookies.Add(new Cookie(__sidCookieName, sid));
cookies.Add(new Cookie(__hashCookieName,
GenerateHash(userName, Prefs.Instance.UrlPrefs.SharedSecret)));
}
var client = new HttpClient(handler) {
BaseAddress = _prefServerBaseUrl
};
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
return client;
}
答案 0 :(得分:15)
您可以将包含转换器列表的JsonSerializerSettings
传递给JsonMediaTypeFormatter
使用的ReadAsAsync<T>
:
即
var obj = await result.Content.ReadAsAsync<refsResponse>(
new[] {new JsonMediaTypeFormatter {
SerializerSettings = new JsonSerializerSettings {
Converters = new List<JsonConverter> {
//list of your converters
}
}
}
});
答案 1 :(得分:1)
您可能希望使用HttpClient.GetStringAsync Method (String)
var response = client.GetStringAsync("api/sites/" + sid);
return JsonConvert.DeserializeObject<PrefsResponse>(response.Result, new PrefClassJsonConverter());
或者你想要更优雅的是什么?
答案 2 :(得分:1)
我能够使用以下内容将自定义JsonConverter添加到HttpClient的默认格式化程序中:
MediaTypeFormatterCollection formatters = new MediaTypeFormatterCollection();
formatters.JsonFormatter.SerializerSettings.Converters.Add(new MyCustomConverter());
var result = response.Content.ReadAsAsync<T>(formatters).Result;
这似乎允许您只将自定义转换器添加到默认转换器。