C# 后台处理http POST请求类

最新推荐文章于 2025-05-27 11:09:04 发布

dannywj1371

最新推荐文章于 2025-05-27 11:09:04 发布

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分类专栏： .NET 文章标签： c# string exception url stream .net

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本文介绍了一个简单的HTTP POST请求实现方法，使用C#语言通过指定URL发送POST请求，并附带了请求体数据。该方法首先创建WebRequest对象，设置必要的请求属性如Content-Type、User-Agent等，然后写入请求体数据并获取响应。

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using System;
using System.IO;
using System.Net;
using System.Text;

namespace com.hooyes.lms
{
    public class http
    {
        private const string sContentType = "application/x-www-form-urlencoded";
        private const string sUserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727)";
        private static NLog.Logger log = NLog.LogManager.GetCurrentClassLogger();
        public static string Send(string data, string url)
        {
            return Send(Encoding.GetEncoding("UTF-8").GetBytes(data), url);
        }

        public static string Send(byte[] data, string url)
        {
            Stream responseStream;
            HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
            if (request == null)
            {
                log.Fatal(string.Format("Invalid url string: {0}", url));
                throw new ApplicationException(string.Format("Invalid url string: {0}", url));
            }
            // request.UserAgent = sUserAgent;
            request.ContentType = sContentType;
            request.Method = "POST";
            request.ContentLength = data.Length;
            Stream requestStream = request.GetRequestStream();
            requestStream.Write(data, 0, data.Length);
            requestStream.Close();
            try
            {
                responseStream = request.GetResponse().GetResponseStream();
            }
            catch (Exception exception)
            {
                log.Fatal("{0},{1}",exception.Message,exception.StackTrace);
                throw exception;
            }
            string str = string.Empty;
            using (StreamReader reader = new StreamReader(responseStream, Encoding.GetEncoding("UTF-8")))
            {
                str = reader.ReadToEnd();
            }
            responseStream.Close();
            return str;
        }
    }
}