Http的帮助类

HttpRequestHelper

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

namespace MPS.Utils
{
    public class HttpResquestHelper
    {
        public string GetWebContent(string url)
        {
            Stream outstream = null;
            Stream instream = null;
            StreamReader sr = null;
            HttpWebResponse response = null;
            HttpWebRequest request = null;
            // 要注意的这是这个编码方式，还有内容的Xml内容的编码方式
            Encoding encoding = Encoding.GetEncoding("UTF-8");
            byte[] data = encoding.GetBytes(url);

            // 准备请求,设置参数
            request = WebRequest.Create(url) as HttpWebRequest;
            request.Method = "POST";
            request.ContentType = "text/xml";
            //request.ContentLength = data.Length;

            outstream = request.GetRequestStream();
            outstream.Write(data, 0, data.Length);
            outstream.Flush();
            outstream.Close();
            //发送请求并获取相应回应数据

            response = request.GetResponse() as HttpWebResponse;
            //直到request.GetResponse()程序才开始向目标网页发送Post请求
            instream = response.GetResponseStream();

            sr = new StreamReader(instream, encoding);
            //返回结果网页(html)代码

            string content = sr.ReadToEnd();
            return content;
        }
        public string PostXml(string url, string strPost)
        {
            string result = "";

            StreamWriter myWriter = null;
            HttpWebRequest objRequest = (HttpWebRequest)WebRequest.Create(url);
            objRequest.Method = "POST";
            //objRequest.ContentLength = strPost.Length;
            objRequest.ContentType = "text/xml";//提交xml 
            //objRequest.ContentType = "application/x-www-form-urlencoded";//提交表单
            try
            {
                myWriter = new StreamWriter(objRequest.GetRequestStream());
                myWriter.Write(strPost);
            }
            catch (Exception e)
            {
                return e.Message;
            }
            finally
            {
                myWriter.Close();
            }

            HttpWebResponse objResponse = (HttpWebResponse)objRequest.GetResponse();
            using (StreamReader sr = new StreamReader(objResponse.GetResponseStream()))
            {
                result = sr.ReadToEnd();
                sr.Close();
            }
            return result;
        }

        /// <summary>
        /// 提交数据请求  方法一
        /// </summary>
        /// <param name="POSTURL">请求提交的地址 如：http://xxx.xxx.xxx/interface/TestPostRequest</param>
        /// <param name="PostData">提交的数据(字符串)</param>
        /// <returns></returns>
        public static string RequestData(string POSTURL, string PostData)
        {
            //发送请求的数据
            WebRequest myHttpWebRequest = WebRequest.Create(POSTURL);
            myHttpWebRequest.Method = "POST";
            UTF8Encoding encoding = new UTF8Encoding();
            byte[] byte1 = encoding.GetBytes(PostData);
            myHttpWebRequest.ContentType = "application/x-www-form-urlencoded";
            myHttpWebRequest.ContentLength = byte1.Length;
            Stream newStream = myHttpWebRequest.GetRequestStream();
            newStream.Write(byte1, 0, byte1.Length);
            newStream.Close();

            //发送成功后接收返回的XML信息
            HttpWebResponse response = (HttpWebResponse)myHttpWebRequest.GetResponse();
            string lcHtml = string.Empty;
            Encoding enc = Encoding.GetEncoding("UTF-8");
            Stream stream = response.GetResponseStream();
            StreamReader streamReader = new StreamReader(stream, enc);
            lcHtml = streamReader.ReadToEnd();
            return lcHtml;
        }


        /// <summary>
        /// 通过接口提交请求的公用方法   方法二
        /// </summary>
        /// <param name="url">请求的接口地址  如：http://xxx.xxx.xxx/interface/TestPostRequest</param>
        /// <param name="senddata">要发送的报文</param>
        /// <returns></returns>
        public string GetPostStr(string url, string senddata)
        {
            System.Net.WebClient webc = new System.Net.WebClient();
            var apiurl = new Uri(url);
            string sendstr = senddata;
            webc.Headers.Add("Content-Type", "text/xml");
            //webc.Headers["Content-Type"] = "application/stream;charset=utf-8";//OK  
            var arr = webc.UploadData(apiurl, Encoding.UTF8.GetBytes(sendstr));
            return Encoding.UTF8.GetString(arr);
        }


        CookieContainer cookie = new CookieContainer();

        private string HttpPost(string Url, string postDataStr)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
            request.Method = "POST";
            request.ContentType = "application/x-www-form-urlencoded";
            request.ContentLength = Encoding.UTF8.GetByteCount(postDataStr);
            request.CookieContainer = cookie;
            Stream myRequestStream = request.GetRequestStream();
            StreamWriter myStreamWriter = new StreamWriter(myRequestStream, Encoding.GetEncoding("gb2312"));
            myStreamWriter.Write(postDataStr);
            myStreamWriter.Close();

            HttpWebResponse response = (HttpWebResponse)request.GetResponse();

            response.Cookies = cookie.GetCookies(response.ResponseUri);
            Stream myResponseStream = response.GetResponseStream();
            StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
            string retString = myStreamReader.ReadToEnd();
            myStreamReader.Close();
            myResponseStream.Close();

            return retString;
        }

        public string HttpGet(string Url, string postDataStr)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (postDataStr == "" ? "" : "?") + postDataStr);
            request.Method = "GET";
            request.ContentType = "text/html;charset=UTF-8";

            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream myResponseStream = response.GetResponseStream();
            StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
            string retString = myStreamReader.ReadToEnd();
            myStreamReader.Close();
            myResponseStream.Close();

            return retString;
        }
    }
}

HttpPostHelper

 

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

namespace MPS.Utils
{
    public class PostHelp
    {
        public string GetWebContent(string url)
        {
            Stream outstream = null;
            Stream instream = null;
            StreamReader sr = null;
            HttpWebResponse response = null;
            HttpWebRequest request = null;
            // 要注意的这是这个编码方式，还有内容的Xml内容的编码方式
            Encoding encoding = Encoding.GetEncoding("UTF-8");
            byte[] data = encoding.GetBytes(url);

            // 准备请求,设置参数
            request = WebRequest.Create(url) as HttpWebRequest;
            request.Method = "POST";
            request.ContentType = "text/xml";
            //request.ContentLength = data.Length;

            outstream = request.GetRequestStream();
            outstream.Write(data, 0, data.Length);
            outstream.Flush();
            outstream.Close();
            //发送请求并获取相应回应数据

            response = request.GetResponse() as HttpWebResponse;
            //直到request.GetResponse()程序才开始向目标网页发送Post请求
            instream = response.GetResponseStream();

            sr = new StreamReader(instream, encoding);
            //返回结果网页(html)代码

            string content = sr.ReadToEnd();
            return content;
        }
        public string PostXml(string url, string strPost)
        {
            string result = "";

            StreamWriter myWriter = null;
            HttpWebRequest objRequest = (HttpWebRequest)WebRequest.Create(url);
            objRequest.Method = "POST";
            //objRequest.ContentLength = strPost.Length;
            objRequest.ContentType = "text/xml";//提交xml 
            //objRequest.ContentType = "application/x-www-form-urlencoded";//提交表单
            try
            {
                myWriter = new StreamWriter(objRequest.GetRequestStream());
                myWriter.Write(strPost);
            }
            catch (Exception e)
            {
                return e.Message;
            }
            finally
            {
                myWriter.Close();
            }

            HttpWebResponse objResponse = (HttpWebResponse)objRequest.GetResponse();
            using (StreamReader sr = new StreamReader(objResponse.GetResponseStream()))
            {
                result = sr.ReadToEnd();
                sr.Close();
            }
            return result;
        }

        /// <summary>
        /// 提交数据请求  方法一
        /// </summary>
        /// <param name="POSTURL">请求提交的地址 如：http://xxx.xxx.xxx/interface/TestPostRequest</param>
        /// <param name="PostData">提交的数据(字符串)</param>
        /// <returns></returns>
        public static string RequestData(string POSTURL, string PostData)
        {
            //发送请求的数据
            WebRequest myHttpWebRequest = WebRequest.Create(POSTURL);
            myHttpWebRequest.Method = "POST";
            UTF8Encoding encoding = new UTF8Encoding();
            byte[] byte1 = encoding.GetBytes(PostData);
            myHttpWebRequest.ContentType = "application/x-www-form-urlencoded";
            myHttpWebRequest.ContentLength = byte1.Length;
            Stream newStream = myHttpWebRequest.GetRequestStream();
            newStream.Write(byte1, 0, byte1.Length);
            newStream.Close();

            //发送成功后接收返回的XML信息
            HttpWebResponse response = (HttpWebResponse)myHttpWebRequest.GetResponse();
            string lcHtml = string.Empty;
            Encoding enc = Encoding.GetEncoding("UTF-8");
            Stream stream = response.GetResponseStream();
            StreamReader streamReader = new StreamReader(stream, enc);
            lcHtml = streamReader.ReadToEnd();
            return lcHtml;
        }


        /// <summary>
        /// 通过接口提交请求的公用方法   方法二
        /// </summary>
        /// <param name="url">请求的接口地址  如：http://xxx.xxx.xxx/interface/TestPostRequest</param>
        /// <param name="senddata">要发送的报文</param>
        /// <returns></returns>
        public string GetPostStr(string url, string senddata)
        {
            System.Net.WebClient webc = new System.Net.WebClient();
            var apiurl = new Uri(url);
            string sendstr = senddata;
            webc.Headers.Add("Content-Type", "text/xml");
            //webc.Headers["Content-Type"] = "application/stream;charset=utf-8";//OK  
            var arr = webc.UploadData(apiurl, Encoding.UTF8.GetBytes(sendstr));
            return Encoding.UTF8.GetString(arr);
        }
    }
}