一直以来，遇到的POST接口请求都是 键值对的json格式，最近对接了不少公安，发现body 的请求体都是直接放置字符串，虽然postman 中会报红，但是仍然可请求成功
using (HttpClientHandler handle = new HttpClientHandler()) using (HttpClient httpClient = new HttpClient(handle)) { HttpRequestMessage httpRequestMessage = new HttpRequestMessage(HttpMethod.Post, url); string appKey = "xxxx"; //构造签名相关 string timeStamp = ""; string sign = GetSign(ref timeStamp, appKey); httpRequestMessage.Headers.Add("sign", sign); httpRequestMessage.Headers.Add("参数1", timeStamp); httpRequestMessage.Headers.Add("参数2", "xxxx"); //var requestData = new { sign = args }; 取消键值对，直接放body值 StringContent content = new StringContent(args, Encoding.UTF8, "application/json"); httpRequestMessage.Content = content; var httpResponseMessage = httpClient.SendAsync(httpRequestMessage); string result = httpResponseMessage.Result.Content.ReadAsStringAsync().Result; return JsonConvert.DeserializeObject<dynamic>(result); }
在通过 https 请求时，有时候会遇到过安全验证问题，比如什么SSL， TLS啥的， 不得不说AI确实方便，一键输入，直接对话出结果，虽然时常不怎么靠谱，但是也提供了很多好思路，很适合比较社交恐惧的马龙， 需要设置一下证书回调，安全协议
if (url.StartsWith("https"))
{
//设置证书，设置安全协议， 低版本二选一
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
ServicePointManager.SecurityProtocol = (SecurityProtocolType)192 | (SecurityProtocolType)768 | (SecurityProtocolType)3072;
//锦绣
ServicePointManager.ServerCertificateValidationCallback = ValidateServerCertificate;
}
using (HttpClientHandler handle = new HttpClientHandler())
using (HttpClient httpClient = new HttpClient(handle))
{
HttpRequestMessage httpRequestMessage = new HttpRequestMessage(HttpMethod.Post, url);
string appKey = "xxxx";
//构造签名相关
string timeStamp = "";
string sign = GetSign(ref timeStamp, appKey);
httpRequestMessage.Headers.Add("sign", sign);
httpRequestMessage.Headers.Add("参数1", timeStamp);
httpRequestMessage.Headers.Add("参数2", "xxxx");
//var requestData = new { sign = args }; 取消键值对，直接放body值
StringContent content = new StringContent(args, Encoding.UTF8, "application/json");
httpRequestMessage.Content = content;
var httpResponseMessage = httpClient.SendAsync(httpRequestMessage);
string result = httpResponseMessage.Result.Content.ReadAsStringAsync().Result;
return JsonConvert.DeserializeObject<dynamic>(result);
}
回调方法的实现
private bool ValidateServerCertificate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) { return true; }
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