WebApi实现代理Http请求

h5调用第三方api时候经常遇到不允许跨域的问题，用webapi实现一个代理http接口，方便进行跨域请求。

      using Newtonsoft.Json;
      using Newtonsoft.Json.Linq;
      using System;
      using System.Collections.Generic;
      using System.IO;
      using System.Linq;
      using System.Net;
      using System.Net.Http;
      using System.Net.Http.Headers;
      using System.Web.Http;
      using YFAPICommon.Models;
      namespace YFAPICommon.Controllers
      {
         public class HttpInput
          {
             public string url { set; get; }
             public Dictionary<string,object> param { set; get; }
          }
         public class HttpProxyController : ApiController
          {
             public object doPost(HttpInput input)
              {
                 if (string.IsNullOrWhiteSpace(input.url))
                     return ReturnNode.ReturnError("url不能为空");
                 if (input.param == null)
                      input.param = new Dictionary<string, object>();
                 string result = Post(input.url,input.param);
                 if (result != null)
                  {
                     try
                      {
                          JObject obj = JsonConvert.DeserializeObject<JObject>(result);
                         return obj;
                      }
                     catch (Exception ex)
                      {
                      }
                  }
                 return result;
              }
             public object doGet(HttpInput input)
              {
                 if (string.IsNullOrWhiteSpace(input.url))
                     return ReturnNode.ReturnError("url不能为空");
                 if (input.param == null)
                      input.param = new Dictionary<string, object>();
                 string result = Get(input.url);
                 if (result != null)
                  {
                     try
                      {
                          JObject obj = JsonConvert.DeserializeObject<JObject>(result);
                         return obj;
                      }
                     catch (Exception ex)
                      {
                      }
                  }
                 return result;
              }
             private static string Post(string url, Dictionary<string, object> param)
              {
                 using (HttpClient client = new HttpClient())
                  {
                     //请求超时
                     //client.Timeout = new TimeSpan(5000);
                     var httpContent = new StringContent(JsonConvert.SerializeObject(param));
                      httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
                     var response = client.PostAsync(url, httpContent).Result;
                     var responseValue = response.Content.ReadAsStringAsync().Result;
                     if (response.StatusCode == System.Net.HttpStatusCode.OK)
                      {
                         return responseValue;
                      }
                     return null;
                  }
              }
             private static string Get(string url)
              {
                 var request = (HttpWebRequest)WebRequest.Create(url);
                 var response = (HttpWebResponse)request.GetResponse();
                 var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
                 if (response.StatusCode == System.Net.HttpStatusCode.OK)
                  {
                     return responseString;
                  }
                 return null;
              }
          }
      }
  
 

  
 
 

文章来源: zzzili.blog.csdn.net，作者：清雨小竹，版权归原作者所有，如需转载，请联系作者。

原文链接：zzzili.blog.csdn.net/article/details/101421833