部门门户网站建设的目的/全自动推广软件

      前言：最近公司项目与外部api接口对接较多 ，写下自己的代码总结。介绍两种访问方式（HttpClient、HttpWebRequest）

一、HttpWebRequest 访问Api

 private static string webPost(string url, string obj = null){string param = (obj);//参数byte[] bs = Encoding.Default.GetBytes(param);HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);req.Method = "POST";req.ContentType = "application/json";req.ContentLength = bs.Length;using (Stream reqStream = req.GetRequestStream()){reqStream.Write(bs, 0, bs.Length);reqStream.Close();HttpWebResponse response2 = (HttpWebResponse)req.GetResponse();StreamReader sr2 = new StreamReader(response2.GetResponseStream(), Encoding.UTF8);string result = sr2.ReadToEnd();return result;}}

 

二、HttpClient访问Api

 /// <summary>
/// Get请求
/// </summary>

public string GetToken()

{

            try{HttpClient myHttpClient = new HttpClient();var urlstring = "https://oapi.dingtalk.com/gettoken?appkey=APPKEY&appsecret=APPSECRET";urlstring = urlstring.Replace("APPKEY", appkey);urlstring = urlstring.Replace("APPSECRET", appsecret);HttpResponseMessage response = myHttpClient.GetAsync(urlstring).Result;var content = response.Content.ReadAsAsync<object>().Result;return content；}catch (Exception ex){return ex.Message；}
}

 

/// <summary>
/// Post请求
/// </summary>public string getList(long unixstart, long unixend, int cursor, bool start) {try{HttpClient myHttpClient = new HttpClient();var urlstring = "https://oapi.dingtalk.com/topapi/processinstance/listids?access_token=ACCESS_TOKEN";urlstring = urlstring.Replace("ACCESS_TOKEN", access_token);var content = new FormUrlEncodedContent(new Dictionary<string, string>() {{"process_code",""},{"start_time", },{"end_time" ,},{"size" ,"10"},{"cursor" ,)}});HttpResponseMessage response = myHttpClient.PostAsync(urlstring, content).Result;var jsonlist = response.Content.ReadAsAsync<object>().Result;return jsonlist;}catch (Exception ex){return e.Message; 
            }
 }

 

三、时间戳与DateTime互转

 /// <summary>/// 将c# DateTime时间格式转换为Unix时间戳格式/// </summary>/// <param name="time"></param>/// <returns></returns>public  long ConvertDateTimeInt(DateTime time){DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1, 0, 0, 0, 0));long t = (time.Ticks - startTime.Ticks) / 10000;return t;}/// <summary>/// c# Unix时间戳格式转换成DateTime/// </summary>/// <param name="d"></param>/// <returns></returns>public  System.DateTime ConvertIntDateTime(long d){System.DateTime time = System.DateTime.MinValue;System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));time = startTime.AddMilliseconds(d);return time;}