C# POST与Get数据
引用DLL
普通Get数据和Post数据
1 public static string Get(string URL) 2 { 3 String ReCode = string.Empty; 4 try 5 { 6 HttpWebRequest wNetr = (HttpWebRequest)HttpWebRequest.Create(URL); 7 HttpWebResponse wNetp = (HttpWebResponse)wNetr.GetResponse(); 8 wNetr.ContentType = "text/html"; 9 wNetr.Method = "Get"; 10 Stream Streams = wNetp.GetResponseStream(); 11 StreamReader Reads = new StreamReader(Streams, Encoding.UTF8); 12 ReCode = Reads.ReadToEnd(); 13 14 //封闭临时不实用的资料 15 Reads.Dispose(); 16 Streams.Dispose(); 17 wNetp.Close(); 18 } 19 catch (Exception ex) { throw ex; } 20 21 return ReCode; 22 23 } 24 25 public static string Post(string url, string data) 26 { 27 string returnData = null; 28 try 29 { 30 //byte[] buffer = Encoding.UTF8.GetBytes(data); 31 //HttpWebRequest webReq = (HttpWebRequest)WebRequest.Create(url); 32 //webReq.Method = "POST"; 33 //webReq.ContentType = "application/x-www-form-urlencoded"; 34 //webReq.ContentLength = buffer.Length; 35 //Stream postData = webReq.GetRequestStream(); 36 //webReq.Timeout = 99999999; 37 ////webReq.ReadWriteTimeout = 99999999; 38 //postData.Write(buffer, 0, buffer.Length); 39 //postData.Close(); 40 //HttpWebResponse webResp = (HttpWebResponse)webReq.GetResponse(); 41 //Stream answer = webResp.GetResponseStream(); 42 //StreamReader answerData = new StreamReader(answer); 43 //returnData = answerData.ReadToEnd(); 44 45 string strURL = url; 46 System.Net.HttpWebRequest request; 47 request = (System.Net.HttpWebRequest)WebRequest.Create(strURL); 48 request.Method = "POST"; 49 request.ContentType = "application/json;charset=UTF-8"; 50 string paraUrlCoded = data; 51 byte[] payload; 52 payload = System.Text.Encoding.UTF8.GetBytes(paraUrlCoded); 53 request.ContentLength = payload.Length; 54 Stream writer = request.GetRequestStream(); 55 writer.Write(payload, 0, payload.Length); 56 writer.Close(); 57 System.Net.HttpWebResponse response; 58 response = (System.Net.HttpWebResponse)request.GetResponse(); 59 System.IO.Stream s; 60 s = response.GetResponseStream(); 61 string StrDate = ""; 62 string strValue = ""; 63 StreamReader Reader = new StreamReader(s, Encoding.UTF8); 64 while ((StrDate = Reader.ReadLine()) != null) 65 { 66 strValue += StrDate + " "; 67 } 68 returnData = strValue; 69 } 70 catch 71 { 72 return "获取错误"; 73 } 74 return returnData.Trim() + " "; 75 } 76 /// <summary> 77 /// 将json数据反序列化为Dictionary 78 /// </summary> 79 /// <param name="jsonData">json数据</param> 80 /// <returns></returns> 81 public static Dictionary<string, object> JsonToDictionary(string jsonData) 82 { 83 //实例化JavaScriptSerializer类的新实例。。。需要添加 System.Web.Extensions引用 84 JavaScriptSerializer jss = new JavaScriptSerializer(); 85 try 86 { 87 //将指定的 JSON 字符串转换为 Dictionary<string, object> 类型的对象 88 return jss.Deserialize<Dictionary<string, object>>(jsonData); 89 } 90 catch (Exception ex) 91 { 92 throw new Exception(ex.Message); 93 } 94 }
HTTPS POST
class ProgramTest { static void Main(string[] args) { string url = "https://www.test.com"; string result = PostUrl(url, "key=123"); // key=4da4193e-384b-44d8-8a7f-2dd8b076d784 Console.WriteLine(result); Console.WriteLine("OVER"); Console.ReadLine(); } private static string PostUrl(string url, string postData) { HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest; if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase)) { ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); request.ProtocolVersion = HttpVersion.Version11; // 这里设置了协议类型。 ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;// SecurityProtocolType.Tls1.2; request.KeepAlive = false; ServicePointManager.CheckCertificateRevocationList = true; ServicePointManager.DefaultConnectionLimit = 100; ServicePointManager.Expect100Continue = false; } request.Method = "POST"; //使用get方式发送数据 request.ContentType = "application/x-www-form-urlencoded"; request.Referer = null; request.AllowAutoRedirect = true; request.UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727)"; request.Accept = "*/*"; byte[] data = Encoding.UTF8.GetBytes(postData); Stream newStream = request.GetRequestStream(); newStream.Write(data, 0, data.Length); newStream.Close(); //获取网页响应结果 HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream stream = response.GetResponseStream(); //client.Headers.Add("Content-Type", "application/x-www-form-urlencoded"); string result = string.Empty; using (StreamReader sr = new StreamReader(stream)) { result = sr.ReadToEnd(); } return result; } private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { return true; //总是接受 } }
附.另外一个Post
public void Post() { var d = new SendNews(); d.touser = touser; d.agentid = "7"; d.Description = wxmsg; HttpClient client = new HttpClient(); client.BaseAddress = new Uri("http://localhost:47870/"); client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); HttpResponseMessage response = client.PostAsJsonAsync("api/SendMsg/SendNews", d).Result; } public class SendNews { /// <summary> /// UserID列表（消息接收者，多个接收者用‘|’分隔）。特殊情况：指定为@all，则向关注该企业应用的全部成员发送 /// </summary> public string touser { get; set; } /// <summary> /// PartyID列表，多个接受者用‘|’分隔。当touser为@all时忽略本参数 /// </summary> public string toparty { get; set; } /// <summary> /// TagID列表，多个接受者用‘|’分隔。当touser为@all时忽略本参数 /// </summary> public string totag { get; set; } /// <summary> /// 消息类型 /// </summary> public string msgtype { get; set; } /// <summary> /// 企业应用的id，整型。可在应用的设置页面查看 /// </summary> public string agentid { get; set; } /// <summary> /// 表示是否是保密消息，0表示否，1表示是，默认0 /// </summary> public string safe { get; set; } /// <summary> /// 文章标题 /// </summary> public string Title { get; set; } /// <summary> /// 文章描述 /// </summary> public string Description { get; set; } /// <summary> /// 图片链接，支持JPG、PNG格式，较好的效果为大图360*200，小图200*200 /// </summary> public string PicUrl { get; set; } /// <summary> /// 点击图文消息跳转链接 /// </summary> public string Url { get; set; } }
键值对提交
//重点！！ 成功 利用Webclient Post 按字段的方式提交每个字段的内容给服务器端 public string WebClientPost(string url, System.Collections.Specialized.NameValueCollection PostVars) { try { System.Net.WebClient WebClientObj = new System.Net.WebClient(); byte[] byRemoteInfo = WebClientObj.UploadValues(url, "POST", PostVars); //下面都没用啦，就上面一句话就可以了 string sRemoteInfo = System.Text.Encoding.Default.GetString(byRemoteInfo); return sRemoteInfo; } catch { return ""; } } public void test() { System.Collections.Specialized.NameValueCollection PostVars = new System.Collections.Specialized.NameValueCollection(); PostVars.Add("test", "value"); PostVars.Add("cmd", "value"); PostVars.Add("token", "value"); WebClientPost("url", PostVars); }