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  • HttpClient PostAsync/GetAsync JSON Example

    PostAsync

    static readonly HttpClient Client = new HttpClient();
    public async Task<T> PostAsync<T>(string url, object data) where T : class, new()
    {
        try
        {
            string content = JsonConvert.SerializeObject(data);
            var buffer = Encoding.UTF8.GetBytes(content);
            var byteContent = new ByteArrayContent(buffer);
            byteContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
            var response = await Client.PostAsync(url, byteContent).ConfigureAwait(false);
            string result = await response.Content.ReadAsStringAsync();
            if (response.StatusCode != HttpStatusCode.OK)
            {
                logger.Error($"GetAsync End, url:{url}, HttpStatusCode:{response.StatusCode}, result:{result}");
                return new T();
            }
            logger.Info($"GetAsync End, url:{url}, result:{result}");
            return JsonConvert.DeserializeObject<T>(result);
        }
        catch (WebException ex)
        {
            if (ex.Response != null)
            {
                string responseContent = new StreamReader(ex.Response.GetResponseStream()).ReadToEnd();
                throw new System.Exception($"response :{responseContent}", ex);
            }
            throw;
        }
    }
    

      

    GetAsync

    static readonly HttpClient Client = new HttpClient();
    public async Task<string> GetAsync(string url, object data)
    {
        try
        {
            string requestUrl = $"{url}?{GetQueryString(data)}";
            logger.Info($"GetAsync Start, requestUrl:{requestUrl}");
            var response = await Client.GetAsync(requestUrl).ConfigureAwait(false);
            string result = await response.Content.ReadAsStringAsync();
            logger.Info($"GetAsync End, requestUrl:{requestUrl}, HttpStatusCode:{response.StatusCode}, result:{result}");
            return result;
        }
        catch (WebException ex)
        {
            if (ex.Response != null)
            {
                string responseContent = new StreamReader(ex.Response.GetResponseStream()).ReadToEnd();
                throw new Exception($"Response :{responseContent}", ex);
            }
            throw;
        }
    }
    
    private static string GetQueryString(object obj)
    {
        var properties = from p in obj.GetType().GetProperties()
                            where p.GetValue(obj, null) != null
                            select p.Name + "=" + HttpUtility.UrlEncode(p.GetValue(obj, null).ToString());
    
        return String.Join("&", properties.ToArray());
    }
    

      

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  • 原文地址:https://www.cnblogs.com/XuPengLB/p/10860949.html
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