C# winform post 请求指定 url

亦凉 2024-02-18 21:41 53阅读 0赞

using System;  
using System.Collections.Generic;  
using System.IO;  
using System.Linq;  
using System.Net;  
using System.Text;

namespace Tt.KD100.Initiative.WinService  
\{  
/// <summary>  
/// 请求信息帮助  
/// </summary>  
public class HttpHelper  
\{  
/// <summary>  
/// post 请求指定地址返回响应数据  
/// </summary>  
/// <param name="url">请求地址</param>  
/// <param name="postData">请求数据</param>  
/// <param name="timeout">请求超时时间（毫秒）</param>  
/// <param name="requestCoding">请求编码</param>  
/// <param name="responseCoding">响应编码</param>  
/// <returns></returns>  
public string PostRequest(string url, Dictionary<string, string> postData, int timeout,Encoding requestCoding, Encoding responseCoding)  
\{  
string postStr = string.Empty;  
if (postData!=null)  
\{  
postData.All(o =>  
\{  
if (string.IsNullOrEmpty(postStr))  
postStr = string.Format("\{0\}=\{1\}", o.Key, o.Value);  
else  
postStr += string.Format("&\{0\}=\{1\}", o.Key, o.Value);

return true;  
\});  
\}  
return PostRequest(url, postStr,timeout, requestCoding, responseCoding);  
\}  
/// <summary>  
/// post 请求指定地址返回响应数据  
/// </summary>  
/// <param name="url">请求地址</param>  
/// <param name="postData">请求数据</param>  
/// <param name="timeout">请求超时时间（毫秒）</param>  
/// <param name="requestCoding">请求编码</param>  
/// <param name="responseCoding">响应编码</param>  
/// <returns></returns>  
public string PostRequest(string url, string postData,int timeout, Encoding requestCoding,Encoding responseCoding)  
\{  
string postUrl = VerifyUrl(url);  
try  
\{  
//写入POSTDATE里  
byte\[\] byteArray = requestCoding.GetBytes(postData);  
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(new Uri(postUrl));  
webRequest.Method = "POST";  
webRequest.Timeout = timeout;  
webRequest.ContentType = "application/x-www-form-urlencoded";  
webRequest.ContentLength = byteArray.Length;  
Stream newStream = webRequest.GetRequestStream();  
newStream.Write(byteArray, 0, byteArray.Length);  
newStream.Close();  
//接收返回信息：  
HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse();  
StreamReader php = new StreamReader(response.GetResponseStream(), responseCoding);  
string result = php.ReadToEnd();  
return result;  
\}  
catch (Exception ex)  
\{  
Grass.Log.ExceptionsStack.RegisterError(ex);  
return string.Empty;  
\}  
\}  
/// <summary>  
/// 验证URL  
/// </summary>  
/// <param name="url">待验证 URL</param>  
/// <returns></returns>  
private string VerifyUrl(string url)  
\{  
if(string.IsNullOrEmpty(url))  
throw new Exception("URL 地址不可以为空！");

if (url.StartsWith("http://", StringComparison.CurrentCultureIgnoreCase))  
return url;

return string.Format("[http://\{1][http_1]\}", url);  
\}  
\}  
\}

[http_1]: http://%7b1