C# HTTP请求 GET&POST
2021-01-20 19:14
标签：TBase get请求 tty mamicode create bytes creat com enc 超文本传输协议（HTTP）的设计目的是保证客户端与服务器之间的通信。 HTTP 的工作方式是客户端与服务器之间的请求-应答协议。 web 浏览器可能是客户端，而计算机上的网络应用程序也可能作为服务器端。 举例：客户端（浏览器）向服务器提交 HTTP 请求；服务器向客户端返回响应。响应包含关于请求的状态信息以及可能被请求的内容。 两种最常用的 HTTP 方法是：GET 和 POST。 一. GET请求 参数是通过Url来传输，接在Url后面中间用?分开，不同参数之间用&分开，也可不带参数，直接从服务器拉取数据。 请注意，查询字符串（名称/值对）是在 POST 请求的 HTTP 消息主体中发送的。 1. ContentType = "application/x-www-form-urlencoded" WebApi 获取请求参数： 2. ContentType = "application/json" WebApi 获取请求参数： C# HTTP请求 GET&POST 标签：TBase get请求 tty mamicode create bytes creat com enc 原文地址：https://www.cnblogs.com/lu-yuan/p/12122234.html什么是 HTTP ？
GET - 从指定的资源请求数据。
POST - 向指定的资源提交要被处理的数据。
GET 请求可被缓存
GET 请求保留在浏览器历史记录中
GET 请求可被收藏为书签
GET 请求不应在处理敏感数据时使用
GET 请求有长度限制
GET 请求只应当用于取回数据
1 string result = String.Empty;
2 string url = $"http://localhost:52307/API/CommonAPI/GetTest1?param1={100}¶m2={200}";
3 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
4 request.Method = "GET";
5 HttpWebResponse response = (HttpWebResponse)request.GetResponse();
6 Stream stream = response.GetResponseStream();
7 if (stream != null)
8 {
9 using (StreamReader reader = new StreamReader(stream, Encoding.Default))
10 {
11 result = reader.ReadToEnd();
12 reader.Close();
13 }
14 }
15
16 Console.WriteLine($"result={result}");
17 Console.ReadKey();
一. POST请求
POST 请求不会被缓存
POST 请求不会保留在浏览器历史记录中
POST 不能被收藏为书签
POST 请求对数据长度没有要求
1 string result = String.Empty;
2
3 string data = $"param1={100}¶m2={200}";
4 byte[] bytes = Encoding.Default.GetBytes(data);
5
6 string url = $"http://localhost:52307/API/CommonAPI/PostTest2";
7 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
8 request.Method = "POST";
9 request.ContentType = "application/x-www-form-urlencoded";
10 request.ContentLength = bytes.Length;
11 Stream requestStream = request.GetRequestStream();
12 requestStream.Write(bytes, 0, bytes.Length);
13 HttpWebResponse response = (HttpWebResponse)request.GetResponse();
14 Stream responseStream = response.GetResponseStream();
15 if (responseStream != null)
16 {
17 using (StreamReader reader = new StreamReader(responseStream, Encoding.Default))
18 {
19 result = reader.ReadToEnd();
20 reader.Close();
21 }
22 }
23
24 Console.WriteLine($"result={result}");
25 Console.ReadKey();
1 try
2 {
3 HttpContextBase httpContextBase = (HttpContextBase)Request.Properties["MS_HttpContext"];
4 HttpRequestBase httpRequestBase = httpContextBase.Request;
5
6 string param1 = httpRequestBase.Form["param1"];
7 string param2 = httpRequestBase.Form["param2"];
8 PrintLog.WriteLog(LogType.DEBUG, "CommonAPIController", "PostTest2", $"param1={param1},param2={param2}");
9
10 return JsonConvert.SerializeObject(new { param1, param2 });
11 }
12 catch (Exception)
13 {
14
15 throw;
16 }
1 public string PostTest1([FromBody]AClass p)
2 {
3 try
4 {
5 PrintLog.WriteLog(LogType.DEBUG, "CommonAPIController", "PostTest1", $"param1={p.Param1},param2={p.Param2}");
6
7 return JsonConvert.SerializeObject(new { p.Param1, p.Param2 });
8 }
9 catch (Exception)
10 {
11
12 throw;
13 }
14 }
15 public class AClass
16 {
17 public string Param1 { get; set; }
18 public string Param2 { get; set; }
19 }
1 string result = String.Empty;
2
3 string data = "{\"param1\":100,\"param2\":200}";
4 byte[] bytes = Encoding.Default.GetBytes(data);
5
6 string url = $"http://localhost:52307/API/CommonAPI/PostTest1";
7 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
8 request.Method = "POST";
9 request.ContentType = "application/json";
10 request.ContentLength = bytes.Length;
11 Stream requestStream = request.GetRequestStream();
12 requestStream.Write(bytes, 0, bytes.Length);
13 HttpWebResponse response = (HttpWebResponse)request.GetResponse();
14 Stream responseStream = response.GetResponseStream();
15 if (responseStream != null)
16 {
17 using (StreamReader reader = new StreamReader(responseStream, Encoding.Default))
18 {
19 result = reader.ReadToEnd();
20 reader.Close();
21 }
22 }
23
24 Console.WriteLine($"result={result}");
25 Console.ReadKey();
1 [HttpPost]
2 public string PostTest1([FromBody]AClass p)
3 {
4 try
5 {
6 PrintLog.WriteLog(LogType.DEBUG, "CommonAPIController", "PostTest1", $"param1={p.Param1},param2={p.Param2}");
7
8 return JsonConvert.SerializeObject(new { p.Param1, p.Param2 });
9 }
10 catch (Exception)
11 {
12
13 throw;
14 }
15 }
16 public class AClass
17 {
18 public string Param1 { get; set; }
19 public string Param2 { get; set; }
20 }
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文章标题：C# HTTP请求 GET&POST
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