今天寫代碼，報(bào)錯(cuò)：遠(yuǎn)程服務(wù)器返回錯(cuò)誤: (500) 內(nèi)部服務(wù)器錯(cuò)誤，開始以為是服務(wù)器的問題，后來才發(fā)現(xiàn)是自己寫請(qǐng)求的時(shí)候的問題，出問題之前，我的HTTP請(qǐng)求是這么寫的：

public static HttpWebResponse CreatePostHttpResponse(string url, IDictionary<string, string> parameters, int timeout, string param){HttpWebRequest request = null;request = WebRequest.Create(url) as HttpWebRequest;request.Proxy = null;request.Method = "POST";request.ContentType = "application/x-www-form-urlencoded";if (timeout > 0)request.Timeout = timeout;if (!string.IsNullOrEmpty(param))request.Headers.Add("Authorization", param);//發(fā)送POST數(shù)據(jù) if (!(parameters == null || parameters.Count == 0)){StringBuilder buffer = new StringBuilder();int i = 0;foreach (string key in parameters.Keys){if (i > 0){buffer.AppendFormat("&{0}={1}", key, parameters[key]);}else{buffer.AppendFormat("{0}={1}", key, parameters[key]);i++;}}byte[] data = Encoding.UTF8.GetBytes(buffer.ToString());using (Stream stream = request.GetRequestStream()){stream.Write(data, 0, data.Length);}}string[] values = request.Headers.GetValues("Content-Type");return request.GetResponse() as HttpWebResponse;}

注意請(qǐng)求頭：request.ContentType = “application/x-www-form-urlencoded”;

然后我換了一種請(qǐng)求方式：

public static HttpWebResponse CreatePostHttpResponse(string url, string jsonParam){HttpWebRequest request = null;request = WebRequest.Create(url) as HttpWebRequest;request.Proxy = null;request.Method = "POST";request.ContentType = "application/json";byte[] data = Encoding.UTF8.GetBytes(jsonParam);request.ContentLength = data.Length;using (Stream stream = request.GetRequestStream()){stream.Write(data, 0, data.Length);}return request.GetResponse() as HttpWebResponse;}

注意請(qǐng)求頭 request.ContentType = “application/json”;

總結(jié)，因?yàn)樗麄冃枰恼?qǐng)求頭是標(biāo)準(zhǔn)的json格式，但是我發(fā)送的請(qǐng)求頭格式不是標(biāo)準(zhǔn)的json格式，所以報(bào)這個(gè)錯(cuò)了，改一下就OK了，

總結(jié)

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