WebAPI的AuthorizeAttribute擴展類中獲取POST提交的數據

在WEBAPI中，AuthorizeAttribute類重寫時，如何獲取post數據是個難題，網上找資料也不好使，只能自己研究，通過研究發現，WEBAPI給了我們獲取POST數據的可能，下麵介紹一下：

//將POST數據以字元串的形式讀取，例如post的json數據，就可以以這種方式讀取 
actionContext.Request.Content.ReadAsStringAsync();

//將POST數據以內容流的形式讀取 
actionContext.Request.Content.ReadAsStreamAsync();

//將POST數據以FORM鍵值對的形式讀取，但是提交的數據須得是FORM提交的才可以 
actionContext.Request.Content.ReadAsFormDataAsync();

代碼具體如下：

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Net.Http;
 5 using System.Web;
 6 using System.Web.Http;
 7 using System.Web.Http.Controllers;
 8 using BoxSecurity;
 9 
10 namespace BoxWebApiFilter
11 {
12     [AttributeUsage(AttributeTargets.Interface | AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
13     public class ApiAuthorizeFilter : AuthorizeAttribute
14     {
15         private static List<string> PublicCmds = new List<string>()
16         {
17             "XXXX"
18         };
19         protected override bool IsAuthorized(HttpActionContext actionContext)
20         {
21             // 驗證token
22             //var token = actionContext.Request.Headers.Authorization;
23             var ts = actionContext.Request.Headers.Where(c => c.Key.ToLower() == "tokenxxx").FirstOrDefault().Value;
24             var requestContent = actionContext.Request.Content.ReadAsStringAsync();//讀取post提交的json數據
25             requestContent.Wait();//等待非同步讀取結束
26             var inputJson = requestContent.Result;
27             //此介面無需token驗證
28             BoxCommand.CmdRequest request =
29                 Newtonsoft.Json.JsonConvert.DeserializeObject<BoxCommand.CmdRequest>(inputJson);
30             if (PublicCmds.Contains(request.Cmd))
31             {
32                 return true;
33             }
34 
35             if (ts != null && ts.Count() > 0)
36             {
37                 var token = ts.First<string>();
38                 // 驗證token
39                 return TokenHelper.IsExistToken(token);
40             }
41 
42             if (actionContext.Request.Method == HttpMethod.Options)
43                 return true;
44             return false;
45 
46         }
47     }
48 }