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本文共计468个文字，预计阅读时间需要2分钟。

目录

1.WebRequest 方式

2.HttpClient 方式

1. WebRequest 方式

csharpprivate void button1_Click(object sender, EventArgs e){ string ss=HttpPost(http://localhost:41558/api/Demo/PostXXX, {\Code\:\test089\,\Name\:\te\});}

2. HttpClient 方式csharpprivate void button1_Click(object sender, EventArgs e){ string ss=HttpPost(http://localhost:41558/api/Demo/PostXXX, {\Code\:\test089\,\Name\:\te\});}

目录

• 1.WebRequest方式
• 2.HttpClient 方式

1.WebRequest方式

private void button1_Click(object sender, EventArgs e)         {            string ss= HttpPost("localhost:41558/api/Demo/PostXXX", "{Code:\"test089\",Name:\"test1\"}");         }         public static string HttpPost(string url, string body)         {             //ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);             Encoding encoding = Encoding.UTF8;             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);             request.Method = "POST";             request.Accept = "text/html, application/xhtml+xml, */*";             request.ContentType = "application/json";                     byte[] buffer = encoding.GetBytes(body);             request.ContentLength = buffer.Length;             request.GetRequestStream().Write(buffer, 0, buffer.Length);             HttpWebResponse response = (HttpWebResponse)request.GetResponse();             using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))             {                 return reader.ReadToEnd();             }         }

Get：

private void button1_Click(object sender, EventArgs e)         {             string ss = HttpGet("localhost:41558/api/Demo/GetXXX?Name=北京");         }         public static string HttpGet(string url)         {             //ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);             Encoding encoding = Encoding.UTF8;             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);             request.Method = "GET";             request.Accept = "text/html, application/xhtml+xml, */*";             request.ContentType = "application/json";                         HttpWebResponse response = (HttpWebResponse)request.GetResponse();             using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))             {                 return reader.ReadToEnd();             }         }

2.HttpClient 方式

Post:

private async void button2_Click(object sender, EventArgs e) {      HttpClient client = new HttpClient();      //由HttpClient发出Delete Method      HttpResponseMessage response = await client.DeleteAsync("localhost:41558/api/Demo"+"/1");      if (response.IsSuccessStatusCode)          MessageBox.Show("成功"); } private async void button3_Click(object sender, EventArgs e) {      //创建一个处理序列化的DataContractJsonSerializer      DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(People));      MemoryStream ms = new MemoryStream();      //将资料写入MemoryStream      serializer.WriteObject(ms, new People() { Id = 1, Name = "Hello ni" });      //一定要在这设定Position      ms.Position = 0;      HttpContent content = new StreamContent(ms);//将MemoryStream转成HttpContent      content.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/json");      HttpClient client = new HttpClient();      //由HttpClient发出Put Method      HttpResponseMessage response = await client.PutAsync("localhost:41558/api/Demo"+ "/1", content);      if (response.IsSuccessStatusCode)          MessageBox.Show("成功"); }

Get:

using (WebClient client = new WebClient()) { client.Headers["Type"] = "GET"; client.Headers["Accept"] = "application/json"; client.Encoding = Encoding.UTF8; client.DownloadStringCompleted += (senderobj, es) => { var obj = es.Result; }; client.DownloadStringAsync("localhost:41558/api/Demo"); }

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