【C# HttpContext(盗)】教程文章相关的互联网学习教程文章

C# 应用 - 使用 HttpClient 发起 Http 请求【代码】

1. 需要的库类 \Reference Assemblies\Microsoft\Framework\.NETFramework\v4.7.2\System.Net.Http.dllSystem.Net.Http.HttpClient2. 代码 public class HttpClientHelper {private static readonly object LockObj = new object();private static HttpClient client = null;public HttpClientHelper() {GetInstance();}public static HttpClient GetInstance(){if (client == null){lock (LockObj){if (client == null){client = ...

C# 应用 - 使用 HttpClient 发起上传文件、下载文件请求【代码】

1. 示例代码 using System; using System.IO; using System.Net.Http;/// <summary> /// 下载文件 /// </summary> /// <param name="serverFileName">服务器上文件名 如 close.png</param> /// <param name="localFileName">要保存到本地的路径全名 如:C://Download/close.png</param> /// <returns></returns> public static bool DownLoad(string uri, string localFileName) {var server = new Uri(uri);var p = Path.GetDirec...

【C#】HTTP post 上传图片及参数【代码】

一、具体代码 1 /// <summary>2 /// 通过http上传图片及传参数3 /// </summary>4 /// <param name="imgPath">图片地址(绝对路径:D:\demo\img\123.jpg)</param>5 public void UploadImage(string imgPath)6 {7 var uploadUrl = "http://localhost:3020/upload/imgup";8 var dic = new Dictionary<string, string>() {9 {"para1",1.ToString(...

c#-网络-HttpListener-简单实验【代码】【图】

服务端代码 using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Text; using System.Threading.Tasks;namespace HttpListener实验 {class Program{static HttpListener httpobj;static void Main(string[] args){//提供一个简单的、可通过编程方式控制的 HTTP 协议侦听器。此类不能被继承。httpobj = new HttpListener();//定义url及端口号,通常设置为配置文件httpobj.Prefixes...

c#_HttpClient_application/x-www-form-urlencoded【代码】【图】

导读: 仅供使用httpclient库模拟http请求,Post请求头 Content-Type:?application/x-www-form-urlencoded 遇到?非字母或数字的字符 时转义的问题 直接上code:https://github.com/dswyzx/forblogs及结果截图 1:问题:因对接接口,参数内存在字符"+",导致双方对参数进行确认时发生分歧 具体表现为:"+"字符在httpclient 为HttpRequestMessage 请求体封装HttpRequestMessage.Content时,全部参数默认被打包为byte数组,并没有像浏览器默认操...

C# httpget

using System.Net; using System.Web; public static string HttpGet(string Url) { try { System.Net.WebRequest wReq = System.Net.WebRequest.Create(Url); // Get the response instance. System.Net.WebResponse wResp = wReq.GetResponse(); System.IO.Stream respStream = wResp.GetResponseStream(); ...

C#调用HttpWebRequest请求的两种方式,application/json和multipart/form-data【代码】

using Newtonsoft.Json; using System; using System.Collections.Generic; using System.Collections.Specialized; using System.IO; using System.Linq; using System.Net; using System.Net.Security; using System.Security.Cryptography.X509Certificates; using System.Text; using System.Threading.Tasks;namespace Huinaozn.ASleepPC.Tools.Utils {public static class HttpWebResponseUtility{/// <summary>/// 通用请求...

C# 的 Path.GetFileName、Path.GetExtension、Path.GetDirectoryName千一网络 http://www.itpow.com/

http://www.itpow.com/ 千一网络Path.GetFileNamestring s1 = Path.GetFileName("D:\\dir\\asp.net\\readme.txt"); // readme.textstring s2 = Path.GetFileName("D:\\dir\\asp.net\\readme."); // readme.string s3 = Path.GetFileName("D:\\dir\\asp.net\\readme"); // readmestring s4 = Path.GetFileName("D:\\dir\\asp.net\\readme\\"); // 零长度字符串string s5 = Path.GetFileName("D:\\"); // 零长度字符串string s6 = P...

C# winform自托管WebApi及身份信息加密、Basic验证、Http Message Handler、跨域配置【代码】

目录1.介绍1.1功能需求及介绍1.2内容分布说明2.C# JS DES加密2.1C# DES加密2.1.1加密2.1.2解密2.1.3重要参数2.1.4格式编码统一2.2JS DES加密2.2.1crypto-js加密库2.2.2加密2.2.3解密2.2.4 base64转16进制2.2.5 16进制转base643.自托管WebAPI及Basic验证、HTTP Message Handler3.1自托管WebAPI3.1.1引用3.3.2建立服务3.3.3API控制器3.3.4注意3.2Basic验证3.2.1Basic验证方式3.2.2客户端构造3.2.3服务端解析3.3HTTP Message Handler3...

c#实现php的http_build_query功能

php的http_build_query不得不说很好用,用c#实现它,过程稍长 http_build_query方法: public static string http_build_query(Dictionary<string, string> dict = null) { if (dict == null) { return ""; } string QueryString=string.Empty;foreach (KeyValuePair<string, string> kvp in dict) { QueryString = QueryString + Ht...

C# winform在WebBrowser下获取完整的Cookies(包括含HTTPOnly属性的)【代码】

利用wininet获取网页Cookie 模拟post请求取数据,使用普通的Cookies无法获取完整的Cookies信息 只能获取了一部分 ,导致取回来的是重新登陆的页面。 后来经过不懈的精神,终于找到了方法实现获取HTTPOnly。 WinInet WinInet(“Windows Internet”)API帮助程序员使用三个常见的Internet协议,这三个协议是用于World Wide Web万维网的超文本传输协议(HTTP:Hypertext Transfer Protocol)、文件传输协议(FTP:File Transfer Prot...

C#用HttpWebRequest通过代理服务器验证后抓取网页内容【图】

内网用户或代理上网的用户使用 using System.IO; using System.Net; public string get_html() { string urlStr = "http://www.domain.com"; //設定要獲取的地址 HttpWebRequest hwr = (HttpWebRequest)HttpWebRequest.Create(urlStr); //建立HttpWebRequest對象 hwr.Timeout = 60000; //定義服務器超時時間 WebProxy proxy = new WebProxy(...

C# HttpPost 【ContentType:multipart/form-data】表单提交数据方法

var postContent = new MultipartFormDataContent(); postContent.Headers.Add("ContentType", $"multipart/form-data"); //这是【string : string】的键值对 postContent.Add(new StringContent(appConfig.apiName), "api_name"); //这是【string : Json】的键值对;param是一个类的对象 postContent.Add(new StringContent(param.ToJsonStr()), "content"); //form表单格式传参 string result = ""; strin...

C# HttpClient PostAsync with parameters【代码】

using System.Net.Http;static void Main(string[] args){var httpTask = Task<string>.Run<string>(() =>{return MainAsync();});httpTask.Wait(); Console.WriteLine(httpTask.Result);Console.ReadLine();}static async Task<string> MainAsync(){using (var client = new HttpClient()){ List<KeyValuePair<string, string>> kvpsList = new List<KeyValuePair<string, string>>();kvpsList.Add(new Key...

C# 模拟HTTP请求 GET POST + 文件上传【代码】

using System; using System.Collections.Generic; using System.IO; using System.Net; using System.Net.Security; using System.Security.Cryptography.X509Certificates; using System.Text; using System.Web; using System.Windows.Forms;namespace CadCoreApp {public static class HttpHelper{/// <summary>/// http/https请求响应/// </summary>/// <param name="getOrPost"></param>/// <param name="url">地址(要带上h...