MVC4 路由参数带点 文件名后缀导致错误

错误描述

最近在研究office在线预览,用到mvc4  apicontroller 需要传参是文件名,如test.docx导致错误“指定的目录或文件在 Web 服务器上不存在”,

请求的路径如:api/wopi/files/test.docx?access_token=access_token。如下截图:

image

项目中路由配置:

public static class WebApiConfig

    {

        public static void Register(HttpConfiguration config)

        {

            //office web apps

            config.Routes.MapHttpRoute(

                 name: "Contents",

                 routeTemplate: "wopi/files/{name}/contents",

                 defaults: new { controller = "files", action = "GetFile" }

             );

            config.Routes.MapHttpRoute(

                name: "FileInfo",

                routeTemplate: "api/wopi/files/{name}",

                defaults: new { controller = "files", action = "GetFileInfo", name = RouteParameter.Optional }

            );

            config.Routes.MapHttpRoute(

                name: "DefaultApi",

                routeTemplate: "api/{controller}/{id}",

                defaults: new { id = RouteParameter.Optional }

            );



            // 取消注释下面的代码行可对具有 IQueryable 或 IQueryable<T> 返回类型的操作启用查询支持。

            // 若要避免处理意外查询或恶意查询,请使用 QueryableAttribute 上的验证设置来验证传入查询。

            // 有关详细信息,请访问 http://go.microsoft.com/fwlink/?LinkId=279712//config.EnableQuerySupport();

        }

    }

控制器方法,注意这里是apicontroller

public class filesController : ApiController

    {

        public CheckFileInfo GetFileInfo(string name, string access_token)

        {



            string _access_token = access_token;



            var file = HostingEnvironment.MapPath("~/App_Data/" + name);//从硬盘中获取name文件



            FileInfo info = new FileInfo(file);

            if (!info.Exists) return null;//不存在返回

            var hasher = SHA256.Create();

            byte[] hashValue;

            using (Stream s = File.OpenRead(file))

            {

                hashValue = hasher.ComputeHash(s);

            }

            string sha256 = Convert.ToBase64String(hashValue);

            var json = new CheckFileInfo



            {



                BaseFileName = info.Name,//"test.docx",



                OwnerId = "admin",



                Size = info.Length,



                SHA256 = "+17lwXXN0TMwtVJVs4Ll+gDHEIO06l+hXK6zWTUiYms=",



                Version = "GIYDCMRNGEYC2MJREAZDCORQGA5DKNZOGIZTQMBQGAVTAMB2GAYA===="



            };



            return json;



        }

        public HttpResponseMessage GetFile(string name, string access_token)

        {



            try

            {



                string _access_token = access_token;



                var file = HostingEnvironment.MapPath("~/App_Data/" + name);//name是文件名



                var rv = new HttpResponseMessage(HttpStatusCode.OK);



                var stream = new FileStream(file, FileMode.Open, FileAccess.Read);



                rv.Content = new StreamContent(stream);



                rv.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");



                return rv;



            }



            catch (Exception ex)

            {



                var rv = new HttpResponseMessage(HttpStatusCode.InternalServerError);



                var stream = new MemoryStream(UTF8Encoding.Default.GetBytes(ex.Message ?? ""));



                rv.Content = new StreamContent(stream);



                return rv;



            }



        }

    }

解决办法

在webconfig中节点system.webserver节点下添加节点<modules runAllManagedModulesForAllRequests="true" />,并将iis模式设置成集成模式(iis->应用程序池->找到你的网站右键“高级设置”,设置成集成模式)。

因为只有iis在集成模式下,system.webserver的设置才会生效。

<system.webServer>

    <handlers>

      <remove name="ExtensionlessUrlHandler-Integrated-4.0" />

      <remove name="OPTIONSVerbHandler" />

      <remove name="TRACEVerbHandler" />

      <add name="ExtensionlessUrlHandler-Integrated-4.0"

           path="*."

           verb="*"

           type="System.Web.Handlers.TransferRequestHandler"

           preCondition="integratedMode,runtimeVersionv4.0" />

    </handlers>

    <modules runAllManagedModulesForAllRequests="true" />

  </system.webServer>

image


参考资源:

博问:http://q.cnblogs.com/q/54613/

如何:为 IIS 7.0 配置 <system.webServer> 节:http://msdn.microsoft.com/zh-cn/library/bb763179.aspx
IIS配置.html的映射问题:http://blog.csdn.net/songz210/article/details/3216101


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