欧美bbbwbbbw肥妇,免费乱码人妻系列日韩,一级黄片

解析C#網(wǎng)絡(luò)編程中的Http請求

 更新時(shí)間:2022年03月31日 09:52:27   作者:坦蕩  
這篇文章主要介紹了C#網(wǎng)絡(luò)編程中的Http請求,不過這次也使我對(duì)C#網(wǎng)絡(luò)編程了解的更多,算是一次學(xué)習(xí)經(jīng)歷吧,文章結(jié)合示例代碼給大家介紹的非常詳細(xì),需要的朋友可以參考下

本篇分享簡單介紹C#中的Http請求,前幾天幫朋友的項(xiàng)目封裝ApiHelper,我粗糙的結(jié)果就如下,想想我真的是差的太遠(yuǎn)了。還有一位架構(gòu)師也在封裝這個(gè)Helper , 所以最后的結(jié)果當(dāng)然是使用大牛的封裝,這篇分享后,準(zhǔn)備學(xué)習(xí)下他的封裝,配置,錯(cuò)誤處理機(jī)制等思想。不過這次也使我對(duì)C#網(wǎng)絡(luò)編程了解的更多,算是一次學(xué)習(xí)經(jīng)歷吧。真心喜歡和老司機(jī)合作,下一階段將會(huì)持續(xù)跟這位朋友學(xué)習(xí)項(xiàng)目底層的封裝,和他謙虛的態(tài)度,有這樣的機(jī)會(huì)也是幸運(yùn)的。

你可以將其封裝成自己的HttpHelper,經(jīng)朋友建議,統(tǒng)一Http請求的入?yún)⒑统鰠?。在HttpClient方面也參考了dudu的關(guān)于httpclient預(yù)熱的文章。C#中HttpClient使用注意:預(yù)熱與長連接。

為了做到統(tǒng)一入?yún)⒑统鰠?,定義了Req<T>泛型類和Resp<T>泛型類。你可以根據(jù)自己的需要進(jìn)行拓展。

public class Req<T>
    {
        /// <summary>
        /// 傳入數(shù)據(jù)
        /// </summary>
        public T Input { get; set; }
        /// <summary>
        /// 請求地址
        /// </summary>
        public string Url { get; set; }
    }
public class Resp<T>
    {
        /// <summary>
        /// 錯(cuò)誤消息
        /// </summary>
        public string ErrorMsg { get; set; }
        /// <summary>
        /// 狀態(tài)碼
        /// </summary>
        public int StatusCode { get; set; }
        /// <summary>
        /// 返回?cái)?shù)據(jù)
        /// </summary>
        public T RespData { get; set; }
    }

雖然保持了httpClient對(duì)象復(fù)用,但需要注意的是,在設(shè)置了httpClient,并且發(fā)生了一次請求之后,不能再對(duì)其屬性進(jìn)行重新設(shè)置。這也正是我又定義了一個(gè)fileClient的理由。

  #region HttpClient版本
         private static readonly string _baseAddress = ConfigurationManager.AppSettings["api-server"];//配置BaseUrl eg.http://localhost:1234
        private static readonly HttpClient _httpClient;
       private static readonly HttpClient _fileClient;
         static ApiHelper()
         {
              #region 初始化和預(yù)熱 httpClient
             _httpClient = new HttpClient();
            _httpClient.BaseAddress = new Uri(_baseAddress);
             _httpClient.Timeout = TimeSpan.FromMilliseconds(2000);
            _httpClient.DefaultRequestHeaders.Add("Accept", "application/json");//application/xml  想Accept的數(shù)據(jù)格式
            _httpClient.SendAsync(new HttpRequestMessage
            {
                Method = new HttpMethod("HEAD"),
                 RequestUri = new Uri(_baseAddress + "/api/test/HttpClientHot")
             })
             .Result.EnsureSuccessStatusCode();
             #endregion
 
            #region 初始化和預(yù)熱 fileClient
            _fileClient = new HttpClient();
             _fileClient.BaseAddress = new Uri(_baseAddress + "/api/test/HttpClientHot");
            _fileClient.MaxResponseContentBufferSize = 256000;
            #endregion
        }
         /// <summary>
         /// http Get請求
        /// </summary>
         /// <typeparam name="T">入?yún)㈩愋?lt;/typeparam>
        /// <typeparam name="TResult">出參類型</typeparam>
        /// <param name="req">入?yún)?duì)象</param>
        /// <returns></returns>
         public static async Task<Resp<TResult>> GetAsync<T, TResult>(Req<T> req)
        {
            try
                var result =await _httpClient.GetAsync(req.Url).Result.Content.ReadAsStringAsync();
                return new Resp<TResult>() { Data = JsonHelper.JsonDeserialize<TResult>(result) };
             }
            catch(Exception ex)
              }
                 return new Resp<TResult>() { Data = JsonHelper.JsonDeserialize<TResult>("") };
            
       }
          /// <summary>
          ///  http Post請求
          /// </summary>
          /// <typeparam name="T">入?yún)㈩愋?lt;/typeparam>
          /// <typeparam name="TResult">出參類型</typeparam>
          /// <param name="req">入?yún)?duì)象</param>
          /// <returns></returns>
          public static async Task<Resp<TResult>> PostAsJsonAsync<T, TResult>(Req<T> req)
              var result = await _httpClient.PostAsJsonAsync(req.Url, req.Input).Result.Content.ReadAsStringAsync();
              return new Resp<TResult>() { Data = JsonHelper.JsonDeserialize<TResult>(result) };
          }
         /// 上傳文件
         /// <typeparam name="T"></typeparam>
         /// <typeparam name="TResult"></typeparam>
         /// <param name="req"></param>
         /// <param name="filePath"></param>
        public static async Task<Resp<TResult>> SendFile<T, TResult>(Req<T> req, string filePath)//D:\\white.jpg
             //_fileClient.DefaultRequestHeaders.Add("user-agent", "User-Agent    Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; Touch; MALNJS; rv:11.0) like Gecko");//設(shè)置請求頭
            // 讀文件流
             FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read);
              HttpContent fileContent = new StreamContent(fs);//為文件流提供的HTTP容器
             fileContent.Headers.ContentType = MediaTypeHeaderValue.Parse("multipart/form-data");//設(shè)置媒體類型
            MultipartFormDataContent mulContent = new MultipartFormDataContent("----");//創(chuàng)建用于可傳遞文件的容器
              string fileName = filePath.Substring(filePath.LastIndexOf("/") + 1);
             mulContent.Add(fileContent, "form", fileName);//第二個(gè)參數(shù)是表單名,第三個(gè)是文件名。
              HttpResponseMessage response = await _fileClient.PostAsync(req.Url, mulContent);
             response.EnsureSuccessStatusCode();
             string result = await response.Content.ReadAsStringAsync();
             return new Resp<TResult>() { Data = JsonHelper.JsonDeserialize<TResult>(result) };
         }
         /// 下載
        /// <param name="url"></param>
         /// <returns></returns>
        public static async Task<Resp<byte[]>> HttpDownloadData<T>(Req<T> req)
             var byteres = await _fileClient.GetByteArrayAsync(req.Url);
             return new Resp<byte[]>() { Data = byteres };
        #endregion
 }

另外分享下HttpWebRequest來實(shí)現(xiàn)的請求。HttpWebRequest需要你自行設(shè)置很多內(nèi)容,當(dāng)然這也證明其內(nèi)容豐富。下面代碼包含了post,get,以及上傳。

/// <summary>
        /// Post Http請求
        /// </summary>
        /// <param name="url">請求地址</param>
        /// <param name="postData">傳輸數(shù)據(jù)</param>
        /// <param name="timeout">超時(shí)時(shí)間</param>
        /// <param name="contentType">媒體格式</param>
        /// <param name="encode">編碼</param>
        /// <returns>泛型集合</returns>
        public static List<T> PostAndRespList<T>(string url, string postData, int timeout = 5000, string contentType = "application/json;", string encode = "UTF-8")
        {
            if (!string.IsNullOrEmpty(url) && !string.IsNullOrEmpty(encode) && !string.IsNullOrEmpty(contentType) && postData != null)
            {
                // webRequest.Headers.Add("Authorization", "Bearer " + "SportApiAuthData");
                HttpWebResponse webResponse = null;
                Stream responseStream = null;
                Stream requestStream = null;
                StreamReader streamReader = null;
                try
                {
                    string respstr = GetStreamReader(url, responseStream, requestStream, streamReader, webResponse, timeout, encode, postData, contentType);
                    return JsonHelper.JsonDeserialize<List<T>>(respstr);

                }
                catch (Exception ex)
                {

                }
                finally
                {
                    if (responseStream != null) responseStream.Dispose();
                    if (webResponse != null) webResponse.Dispose();
                    if (requestStream != null) requestStream.Dispose();
                    if (streamReader != null) streamReader.Dispose();
                }
            }
            return null;
        }

        /// <summary>
        /// Post Http請求
        /// </summary>
        /// <param name="url">請求地址</param>
        /// <param name="postData">傳輸數(shù)據(jù)</param>
        /// <param name="timeout">超時(shí)時(shí)間</param>
        /// <param name="contentType">媒體格式</param>
        /// <param name="encode">編碼</param>
        /// <returns>泛型集合</returns>
        public static T PostAndRespSignle<T>(string url, int timeout = 5000, string postData = "", string contentType = "application/json;", string encode = "UTF-8")
        {
            if (!string.IsNullOrEmpty(url) && !string.IsNullOrEmpty(encode) && !string.IsNullOrEmpty(contentType) && postData != null)
            {
                // webRequest.Headers.Add("Authorization", "Bearer " + "SportApiAuthData");
                HttpWebResponse webResponse = null;
                Stream responseStream = null;
                Stream requestStream = null;
                StreamReader streamReader = null;
                try
                {
                    string respstr = GetStreamReader(url, responseStream, requestStream, streamReader, webResponse, timeout, encode, postData, contentType);
                    return JsonHelper.JsonDeserialize<T>(respstr);
                }
                catch (Exception ex)
                {

                }
                finally
                {
                    if (responseStream != null) responseStream.Dispose();
                    if (webResponse != null) webResponse.Dispose();
                    if (requestStream != null) requestStream.Dispose();
                    if (streamReader != null) streamReader.Dispose();
                }
            }
            return default(T);
        }

        /// <summary>
        /// Post Http請求
        /// </summary>
        /// <param name="url"></param>
        /// <param name="postData"></param>
        /// <param name="timeout"></param>
        /// <param name="contentType"></param>
        /// <param name="encode"></param>
        /// <returns>響應(yīng)流字符串</returns>
        public static string PostAndRespStr(string url, int timeout = 5000, string postData = "", string contentType = "application/json;", string encode = "UTF-8")
        {
            if (!string.IsNullOrEmpty(url) && !string.IsNullOrEmpty(encode) && !string.IsNullOrEmpty(contentType) && postData != null)
            {
                HttpWebResponse webResponse = null;
                Stream responseStream = null;
                Stream requestStream = null;
                StreamReader streamReader = null;
                try
                {

                    return GetStreamReader(url, responseStream, requestStream, streamReader, webResponse, timeout, encode, postData, contentType);
                }
                catch (Exception ex)
                {

                }
                finally
                {
                    if (responseStream != null) responseStream.Dispose();
                    if (webResponse != null) webResponse.Dispose();
                    if (requestStream != null) requestStream.Dispose();
                    if (streamReader != null) streamReader.Dispose();
                }
            }
            return null;
        }

        private static string GetStreamReader(string url, Stream responseStream, Stream requestStream, StreamReader streamReader, WebResponse webResponse, int timeout, string encode, string postData, string contentType)
        {
            byte[] data = Encoding.GetEncoding(encode).GetBytes(postData);
            HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(url);
            SetAuth(webRequest);
            webRequest.Method = "POST";
            webRequest.ContentType = contentType + ";" + encode;
            webRequest.ContentLength = data.Length;
            webRequest.Timeout = timeout;
            requestStream = webRequest.GetRequestStream();
            requestStream.Write(data, 0, data.Length);
            webResponse = (HttpWebResponse)webRequest.GetResponse();
            responseStream = webResponse.GetResponseStream();
            if (responseStream == null) { return ""; }
            streamReader = new StreamReader(responseStream, Encoding.GetEncoding(encode));
            return streamReader.ReadToEnd();
        }

        /// <summary>
        /// Post文件流給指定Url
        /// </summary>
        /// <param name="url">url</param>
        /// <param name="filePath">文件路徑</param>
        /// <returns>響應(yīng)流字符串</returns>
        public static string PostFile(string url, string filePath, string contentType = "application/octet-stream", string encode = "UTF-8")
        {
            if (!string.IsNullOrEmpty(url) && !string.IsNullOrEmpty(encode) && !string.IsNullOrEmpty(contentType) && !string.IsNullOrEmpty(filePath))
            {

                Stream requestStream = null;
                Stream responseStream = null;
                StreamReader streamReader = null;
                FileStream fileStream = null;
                try
                {
                    // 設(shè)置參數(shù)
                    HttpWebRequest webRequest = WebRequest.Create(url) as HttpWebRequest;
                    SetAuth(webRequest);
                    webRequest.AllowAutoRedirect = true;
                    webRequest.Method = "POST";
                    string boundary = DateTime.Now.Ticks.ToString("X"); // 隨機(jī)分隔線
                    webRequest.ContentType = "multipart/form-data;charset=" + encode + ";boundary=" + boundary;
                    byte[] itemBoundaryBytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "\r\n");//消息開始
                    byte[] endBoundaryBytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");//消息結(jié)尾
                    var fileName = filePath.Substring(filePath.LastIndexOf("/") + 1);
                    //請求頭部信息
                    string postHeader = string.Format("Content-Disposition:form-data;name=\"media\";filename=\"{0}\"\r\nContent-Type:{1}\r\n\r\n", fileName, contentType);
                    byte[] postHeaderBytes = Encoding.UTF8.GetBytes(postHeader);
                    fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
                    byte[] fileByteArr = new byte[fileStream.Length];
                    fileStream.Read(fileByteArr, 0, fileByteArr.Length);
                    fileStream.Close();
                    requestStream = webRequest.GetRequestStream();
                    requestStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
                    requestStream.Write(postHeaderBytes, 0, postHeaderBytes.Length);
                    requestStream.Write(fileByteArr, 0, fileByteArr.Length);
                    requestStream.Write(endBoundaryBytes, 0, endBoundaryBytes.Length);
                    requestStream.Close();
                    responseStream = webRequest.GetResponse().GetResponseStream();//發(fā)送請求,得到響應(yīng)流
                    if (responseStream == null) return string.Empty;
                    streamReader = new StreamReader(responseStream, Encoding.UTF8);
                    return streamReader.ReadToEnd();
                }
                catch (Exception ex)
                {

                }
                finally
                {

                }
            }
            return null;

        }

        /// <summary>
        /// Get http請求
        /// </summary>
        /// <param name="url">請求地址</param>
        /// <param name="timeout">超時(shí)時(shí)間</param>
        /// <param name="encode">編碼</param>
        /// <returns>返回單個(gè)實(shí)體</returns>
        public static T GetSingle<T>(string url, int timeout = 5000, string encode = "UTF-8")
        {
            //HttpWebRequest對(duì)象
            //HttpClient->dudu 調(diào)用預(yù)熱處理
            //Stream—>Model

            if (!string.IsNullOrEmpty(url) && !string.IsNullOrEmpty(encode))
            {
                Stream responseStream = null;
                StreamReader streamReader = null;
                WebResponse webResponse = null;
                try
                {
                    string respStr = GetRespStr(url, responseStream, streamReader, webResponse, timeout, encode);
                    return JsonHelper.JsonDeserialize<T>(respStr);
                }
                catch (Exception ex)
                {

                }
                finally
                {
                    if (responseStream != null) responseStream.Dispose();
                    if (streamReader != null) streamReader.Dispose();
                    if (webResponse != null) webResponse.Dispose();
                }
            }
            return default(T);
        }

        /// <summary>
        ///  Get http請求
        /// </summary>
        /// <param name="url"></param>
        /// <param name="timeout"></param>
        /// <param name="encode"></param>
        /// <returns>響應(yīng)流字符串</returns>
        public static string GetResponseString(string url, int timeout = 5000, string encode = "UTF-8")
        {
            if (!string.IsNullOrEmpty(url) && !string.IsNullOrEmpty(encode))
            {
                Stream responseStream = null;
                StreamReader streamReader = null;
                WebResponse webResponse = null;
                try
                {
                    return GetRespStr(url, responseStream, streamReader, webResponse, timeout, encode);
                }
                catch (Exception ex)
                {

                }
                finally
                {
                    if (responseStream != null) responseStream.Dispose();
                    if (streamReader != null) streamReader.Dispose();
                    if (webResponse != null) webResponse.Dispose();
                }
            }
            return null;
        }

        private static string GetRespStr(string url, Stream responseStream, StreamReader streamReader, WebResponse webResponse, int timeout, string encode)
        {
            HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(url);
            webRequest.Method = "GET";
            webRequest.Timeout = timeout;
            webResponse = webRequest.GetResponse();
            responseStream = webResponse.GetResponseStream();
            if (responseStream == null) { return ""; }
            streamReader = new StreamReader(responseStream, Encoding.GetEncoding(encode));
            return streamReader.ReadToEnd();
         }

到此這篇關(guān)于C#網(wǎng)絡(luò)編程中的Http請求的文章就介紹到這了,更多相關(guān)C#網(wǎng)絡(luò)編程Http請求內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家!

相關(guān)文章

  • C# 對(duì)XML基本操作代碼總結(jié)

    C# 對(duì)XML基本操作代碼總結(jié)

    C# 對(duì)XML基本操作包括讀取節(jié)點(diǎn)的數(shù)據(jù),添加節(jié)點(diǎn)。讀取節(jié)點(diǎn)屬性,修改節(jié)點(diǎn)屬性等
    2011-10-10
  • C# cefSharep控件的使用詳情

    C# cefSharep控件的使用詳情

    本文主要介紹了C# cefSharep控件的使用,文中通過示例代碼介紹的非常詳細(xì),對(duì)大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價(jià)值,需要的朋友們下面隨著小編來一起學(xué)習(xí)學(xué)習(xí)吧
    2023-01-01
  • C#基于Socket的網(wǎng)絡(luò)通信類你了解嗎

    C#基于Socket的網(wǎng)絡(luò)通信類你了解嗎

    這篇文章主要為大家詳細(xì)介紹了C#基于Socket的網(wǎng)絡(luò)通信類,文中示例代碼介紹的非常詳細(xì),具有一定的參考價(jià)值,感興趣的小伙伴們可以參考一下,希望能夠給你帶來幫助
    2022-03-03
  • C# 腳本引擎RulesEngine的使用詳解

    C# 腳本引擎RulesEngine的使用詳解

    這篇文章主要介紹了C# 腳本引擎RulesEngine的使用方法,幫助大家更好的理解和使用c#,感興趣的朋友可以了解下
    2021-02-02
  • 基于C#編寫一個(gè)遠(yuǎn)程桌面應(yīng)用

    基于C#編寫一個(gè)遠(yuǎn)程桌面應(yīng)用

    封閉環(huán)境無法拷貝外來的遠(yuǎn)程桌面軟件,所以這篇文章小編就來帶大家用C#編寫一個(gè)簡單的遠(yuǎn)程桌面應(yīng)用,感興趣的小伙伴可以跟隨小編一起學(xué)習(xí)一下
    2023-10-10
  • c++指針使用形參改變實(shí)參的方法

    c++指針使用形參改變實(shí)參的方法

    下面小編就為大家?guī)硪黄猚++指針使用形參改變實(shí)參的方法。小編覺得挺不錯(cuò)的,現(xiàn)在就分享給大家,也給大家做個(gè)參考。一起跟隨小編過來看看吧
    2017-03-03
  • WPF使用WinSCP實(shí)現(xiàn)FTP下載

    WPF使用WinSCP實(shí)現(xiàn)FTP下載

    這篇文章主要為大家詳細(xì)介紹了WPF如何使用WinSCP實(shí)現(xiàn)FTP下載,文中的示例代碼講解詳細(xì),對(duì)我們學(xué)習(xí)或工作有一定幫助,感興趣的小伙伴可以了解一下
    2023-01-01
  • 深入理解C#之接口

    深入理解C#之接口

    這篇文章主要介紹了C#接口(Interface)用法,較為詳細(xì)的分析了C#中接口的功能、實(shí)現(xiàn)及使用技巧,具有一定參考借鑒價(jià)值,需要的朋友可以參考下
    2021-07-07
  • C#遍歷文件夾后上傳文件夾中所有文件錯(cuò)誤案例分析

    C#遍歷文件夾后上傳文件夾中所有文件錯(cuò)誤案例分析

    這篇文章主要介紹了C#遍歷文件夾后上傳文件夾中所有文件的實(shí)現(xiàn)方法,需要的朋友可以參考下
    2015-10-10
  • C# Socket連接請求超時(shí)機(jī)制實(shí)現(xiàn)代碼分享

    C# Socket連接請求超時(shí)機(jī)制實(shí)現(xiàn)代碼分享

    這篇文章主要介紹了C# Socket連接請求超時(shí)機(jī)制實(shí)現(xiàn),下面提供代碼分享,大家可以參考使用
    2013-12-12

最新評(píng)論