C# 模拟Http请求

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所属分类:.NET技术
摘要

使用原因:在我们服务端调用第三方接口时,如:支付宝,微信支付,我们服务端需要模拟http请求并加上一些自己的逻辑响应给前端最终达到我们想要的效果

使用原因:

在我们服务端调用第三方接口时,如:支付宝,微信支付,我们服务端需要模拟http请求并加上一些自己的逻辑响应给前端最终达到我们想要的效果

1.使用WebClient

引用命名空间

using System.Net; using System.Collections.Specialized;

Post发送请求

public void TestRequest()         {             using (var client = new WebClient())             {                 var values = new NameValueCollection();                 values["school_name"] = "南轩中学";                 values["httpWithoutRpc"] = "1";                 var response = client.UploadValues("接口地址", values);                 var responseString = Encoding.Default.GetString(response);             }         }

Get发送请求

using (var client = new WebClient()) {     var responseString = client.DownloadString("接口地址"); }

 2.使用WebRequest

我封装两个方法,用于处理post数据传输方式,Post Body form-data 传值形式专用,  application/json 这两种常用的,话不多说直接上代码

引用命名空间:

using HttpWebRequest using System.IO

方法封装:

        /// <summary>         /// Http请求数据         /// </summary>         /// <typeparam name="T">返回类型</typeparam>         /// <param name="reqUrl">Url地址</param>         /// <param name="method">Get/Post</param>         /// <param name="paraObject">Http参数</param>         /// <param name="headerValue">HttpHeader</param>         /// <param name="timeOut">超时时间(毫秒)</param>         /// <returns></returns>         private T ReqUrlJson<T>(string reqUrl, string method, object paraObject, Dictionary<string, string> headerValue = null, int timeOut = 50000)         {             var paramData = JsonConvert.SerializeObject(paraObject);              var request = WebRequest.Create(reqUrl) as HttpWebRequest;             request.Timeout = timeOut;             request.Method = method.ToUpperInvariant(); //http method             //request.Headers.Add("source", "test"); //headers             if (headerValue != null && headerValue.Count > 0)             {                 foreach (var item in headerValue)                 {                     if (!string.IsNullOrEmpty(item.Key) && !string.IsNullOrEmpty(item.Value))                     {                         request.Headers.Add(item.Key, item.Value);                     }                 }             }             //处理post请求             if (request.Method != "GET" && !string.IsNullOrEmpty(paramData) && paramData.Length > 0) //request data             {                 request.ContentType = "application/json";                 byte[] buffer = Encoding.UTF8.GetBytes(paramData.Replace("rn", ""));                 request.ContentLength = buffer.Length;                 request.GetRequestStream().Write(buffer, 0, buffer.Length);             }             using (var resp = request.GetResponse() as HttpWebResponse)             {                 using (var stream = new StreamReader(resp.GetResponseStream(), Encoding.UTF8))                 {                     string result = stream.ReadToEnd();                     return JsonConvert.DeserializeObject<T>(result); ;                 }             }         }          /// <summary>         /// Http请求数据(Post Body form-data 传值形式专用)         /// </summary>         /// <typeparam name="T">返回类型</typeparam>         /// <param name="reqUrl">Url地址</param>         /// <param name="headerValue">HttpHeader</param>         /// <param name="timeOut">超时时间(毫秒)</param>         /// <returns></returns>         private T ReqUrlJson<T>(string reqUrl, Dictionary<string, string> headerValue, int timeOut = 50000)         {             var client = new System.Net.Http.HttpClient();             client.Timeout = TimeSpan.FromMilliseconds(timeOut);             var postContent = new MultipartFormDataContent();             string boundary = string.Format("--{0}", DateTime.Now.Ticks.ToString("x"));             postContent.Headers.Add("ContentType", $"multipart/form-data, boundary={boundary}");             //postContent.Headers.Add("source", "test");             if (headerValue != null && headerValue.Count > 0)             {                 foreach (var key in headerValue.Keys)                 {                     postContent.Add(new StringContent(headerValue[key]?.ToString() ?? string.Empty), key);                 }             }             HttpResponseMessage response = client.PostAsync(reqUrl, postContent).Result;             var result = response.Content.ReadAsStringAsync().Result;             return JsonConvert.DeserializeObject<T>(result);         }

使用方法:

var response = new MZSABL().ReqUrlJson<MZSAResultModel<MZSASchoolListModel>>("第三方接口地址", "Post", JsonConvert.DeserializeObject<Dictionary<string, string>>(JsonConvert.SerializeObject(new MZWASerialNumberModel() { school_name = "南轩中学" })));

 篇尾:

因为本人用的是WebRequest,所以可能WebRequest那写的较详细,封装的两个方法基本上大多数场景都通用哦,如有疑问可以直接私信哦,这里我也推荐大家可以去了解下Post的几种数据传输方式方便更好的理解本片文章哦~,那本章就到此结束啦