如何在Windows通用应用程序中发布json字符串以及一些参数c＃

Question

在通用窗口应用程序中发布json值和参数

示例：

交 http://sampleurl?param=1&param2=1 json body：[{＆＃34; key＆＃34;：＆＃34; value＆＃34;，＆＃34; key2＆＃34;：＆＃34; value2＆＃34;}]

Answer 1

我们可以将参数创建为字典并将其发布为formcontent

  public static async Task<string> postdataAsync(Uri posturl, Dictionary<string, string> pairs)
    {
        string response = "";
        try
        {
            var filter = new HttpBaseProtocolFilter();
            filter.IgnorableServerCertificateErrors.Add(ChainValidationResult.Expired);
            filter.IgnorableServerCertificateErrors.Add(ChainValidationResult.Untrusted);
            filter.IgnorableServerCertificateErrors.Add(ChainValidationResult.InvalidName);
            HttpClient httpClient = new HttpClient(filter);
            Windows.Web.Http.HttpFormUrlEncodedContent formContent = new Windows.Web.Http.HttpFormUrlEncodedContent(pairs);
            HttpResponseMessage httpresponse = await httpClient.PostAsync(posturl, formContent);
            response = await httpresponse.Content.ReadAsStringAsync();
        }
        catch
        {
            return null;

        }
        return response;

    }