【发布时间】：2019-04-04 11:14:27
【问题描述】：
我有一个为 vue 网站提供服务的 c# 服务器。在服务器上，我有一个希望传输给客户端的文件。目前服务器托管在本地，但稍后将转移到 azure。
为了获取文件，我有以下 c# 函数：
[Microsoft.AspNetCore.Mvc.Route("api/BIM/GetModifiedRevitFile")]
public ActionResult GetModifiedRevitFile(string json)
{
//string tmppath = Path.GetTempPath();
string tmppath = "A:\\code\\Workspaces";
var FileVirtualPath = tmppath + "\\result.rvt";
var fileUri = new Uri(FileVirtualPath);
var referenceUri = new Uri(System.IO.Path.GetDirectoryName(Assembly.GetEntryAssembly().Location));
FileVirtualPath = referenceUri.MakeRelativeUri(fileUri).ToString();
generateFile(FileVirtualPath) //stores the file in FileVirtualPath
var res= File(FileVirtualPath, "text/plain", Path.GetFileName(FileVirtualPath));
return res;
}
为了请求文件，我在 vue 中有以下 javascript 函数：
GetFileFromServer: function() {
var self = this;
$.ajax({
type: "GET",
timeout: 12000000,
url: 'api/BIM/GetModifiedRevitFile',
contentType: "application/json",
dataType: "text",
success: function (data) {
self.AskToStoreFile(data, self);
},
error: function (data) {
alert("failed to load data" + JSON.stringify(data));
}
});
}
但是，当我调用此函数时，我收到以下错误（来自警报）：
failed to load data{"readyState":4,"responseText":"<!DOCTYPE html>\
\<html lang=\"en\" xmlns=\"http://www.w3.org/1999/xhtml\">\
\ <head>\
\ <meta charset=\"utf-8\" />\
\ <title>Internal Server Error</title>\
\ <style>\
\ body {\
\ font-family: 'Segoe UI', Tahoma, Arial, Helvetica, sans-serif;\
\ font-size: .813em;\
\ color: #222;\
\ background-color: #fff;\
\}\
\\
\h1, h2, h3, h4, h5 {\
\ /*font-family: 'Segoe UI',Tahoma,Arial,Helvetica,sans-serif;*/\
\ font-weight: 100;\
\}\
\\
\h1 {\
\ color: #44525e;\
\ margin: 15px 0 15px 0;\
\}\
\\
\h2 {\
\ margin: 10px 5px 0 0;\
\}\
\\
\h3 {\
\ color: #363636;\
\ margin: 5px 5px 0 0;\
\}\
\\
\code {\
\ font-family: Consolas, \"Courier New\", courier, monospace;\
\}\
\\
\body .titleerror {\
\ padding: 3px 3px 6px 3px;\
\ display: block;\
\ font-size: 1.5em;\
\ font-weight: 100;\
\}\
\\
\body .location {\
\ margin: 3px 0 10px 30px;\
\}\
\\
\#header {\
\ font-size: 18px;\
\ padding: 15px 0;\
\ border-top: 1px #ddd solid;\
\ border-bottom: 1px #ddd solid;\
\ margin-bottom: 0;\
\}\
\\
\ #header li {\
\ display: inline;\
\ margin: 5px;\
\ padding: 5px;\
\ color: #a0a0a0;\
\ cursor: pointer;\
\ }\
\\
\ #header .selected {\
\ background: #44c5f2;\
\ color: #fff;\
\ }\
\\
\#stackpage ul {\
\ list-style: none;\
\ padding-left: 0;\
\ margin: 0;\
\ /*border-bottom: 1px #ddd solid;*/\
\}\
\\
\#stackpage .details {\
\ font-size: 1.2em;\
\ padding: 3px;\
\ color: #000;\
\}\
\\
\#stackpage .stackerror {\
\ padding: 5px;\
\ border-bottom: 1px #ddd solid;\
\}\
\\
\\
\#stackpage .frame {\
\ padding: 0;\
\ margin: 0 0 0 30px;\
\}\
\\
\ #stackpage .frame h3 {\
\ padding: 2px;\
\ margin: 0;\
\ }\
\\
\#stackpage .source {\
\ padding: 0 0 0 30px;\
\}\
\\
\ #stackpage .source ol li {\
\ font-family: Consolas, \"Courier New\", courier, monospace;\
\ white-space: pre;\
\ background-color: #fbfbfb;\
\ }\
\\
\#stackpage .frame .source .highlight li span {\
\ color: #FF0000;\
\}\
\\
\#stackpage .source ol.collapsible li {\
\ color: #888;\
\}\
\\
\ #stackpage .source ol.collapsible li span {\
\ color: #606060;\
\ }\
\\
\.page table {\
\ border-collapse: separate;\
\ border-spacing: 0;\
\ margin: 0 0 20px;\
\}\
\\
\.page th {\
\ vertical-align: bottom;\
\ padding: 10px 5px 5px 5px;\
\ font-weight: 400;\
\ color: #a0a0a0;\
\ text-align: left;\
\}\
\\
\.page td {\
\ padding: 3px 10px;\
\}\
\\
\.page th, .page td {\
\ border-right: 1px #ddd solid;\
\ border-bottom: 1px #ddd solid;\
\ border-left: 1px transparent solid;\
\ border-top: 1px transparent solid;\
\ box-sizing: border-box;\
\}\
\\
\ .page th:last-child, .page td:last-child {\
\ border-right: 1px transparent solid;\
\ }\
\\
\.page .length {\
\ text-align: right;\
\}\
\\
\a {\
\ color: #1ba1e2;\
\ text-decoration: none;\
\}\
\\
\ a:hover {\
\ color: #13709e;\
\ text-decoration: underline;\
\ }\
\\
\.showRawException {\
\ cursor: pointer;\
\ color: #44c5f2;\
\ background-color: transparent;\
\ font-size: 1.2em;\
\ text-align: left;\
\ text-decoration: none;\
\ display: inline-block;\
\ border: 0;\
\ padding: 0;\
\}\
\\
\.rawExceptionStackTrace {\
\ font-size: 1.2em;\
\}\
\\
\.rawExceptionBlock {\
\ border-top: 1px #ddd solid;\
\ border-bottom: 1px #ddd solid;\
\}\
\\
\.showRawExceptionContainer {\
\ margin-top: 10px;\
\ margin-bottom: 10px;\
\}\
\\
\.expandCollapseButton {\
\ cursor: pointer;\
\ float: left;\
\ height: 16px;\
\ width: 16px;\
\ font-size: 10px;\
\ position: absolute;\
\ left: 10px;\
\ background-color: #eee;\
\ padding: 0;\
\ border: 0;\
\ margin: 0;\
\}\
\\
\ </style>\
\ </head>\
\ <body>\
\ <h1>An unhandled exception occurred while processing the request.</h1>\
\ <div class=\"titleerror\">FileNotFoundException: Could not find file: ../../../../result.rvt</div>\
\ <p class=\"location\">Microsoft.AspNetCore.Mvc.Infrastructure.VirtualFileResultExecutor.ExecuteAsync(ActionContext context, VirtualFileResult result)</p>\
\ <ul id=\"header\">\
\ <li id=\"stack\" tabindex=\"1\" class=\"selected\">\
\ Stack\
\ </li>\
\ <li id=\"query\" tabindex=\"2\">\
\ Query\
\ </li>\
\ <li id=\"cookies\" tabindex=\"3\">\
\ Cookies\
\ </li>\
\ <li id=\"headers\" tabindex=\"4\">\
\ Headers\
\ </li>\
\ </ul>\
\\
\ <div id=\"stackpage\" class=\"page\">\
\ <ul>\
\ <li>\
\ <h2 class=\"stackerror\">FileNotFoundException: Could not find file: ../../../../result.rvt</h2>\
\ <ul>\
\ <li class=\"frame\" id=\"frame1\">\
\ <h3>Microsoft.AspNetCore.Mvc.Infrastructure.VirtualFileResultExecutor.ExecuteAsync(ActionContext context, VirtualFileResult result)</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame2\">\
\ <h3>Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeResultAsync(IActionResult result)</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame3\">\
\ <h3>Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResultFilterAsync<TFilter, TFilterAsync>()</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame4\">\
\ <h3>Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResultExecutedContext context)</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame5\">\
\ <h3>Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.ResultNext<TFilter, TFilterAsync>(ref State next, ref Scope scope, ref object state, ref bool isCompleted)</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame6\">\
\ <h3>Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeResultFilters()</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame7\">\
\ <h3>Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame8\">\
\ <h3>Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame9\">\
\ <h3>Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted)</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame10\">\
\ <h3>Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame11\">\
\ <h3>Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame12\">\
\ <h3>Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame13\">\
\ <h3>Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame14\">\
\ <h3>Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame15\">\
\ <h3>Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame16\">\
\ <h3>Microsoft.AspNetCore.SpaServices.Webpack.ConditionalProxyMiddleware.Invoke(HttpContext context)</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame17\">\
\ <h3>Microsoft.AspNetCore.SpaServices.Webpack.ConditionalProxyMiddleware.Invoke(HttpContext context)</h3>\
\\
\ </li>\
\ <li class=\"frame\" id=\"frame18\">\
\ <h3>Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)</h3>\
\\
\ </li>\
\ </ul>\
\ </li>\
\ <li>\
\ <br/>\
\ <div class=\"rawExceptionBlock\">\
\ <div class=\"showRawExceptionContain
其中最重要的部分可能是FileNotFoundException: Could not find file: ../../../../result.rvt。我已经验证了该文件相对于 approot 位于该位置，并且还尝试查看如果我尝试用“result.rvt”替换整个 FileVirtualPath 会发生什么，但这实际上并没有任何区别。当我使用调试器时 res 最终包含一个文件但没有修改日期表明实际文件可能不存在？有人知道如何解决这个问题吗？
【问题讨论】：
-
能否请您粘贴 FileVirtualPath 的值
-
@CodeConstruct fileVirtualPath "../../../../result.rvt"
-
输出 -----../../../../result.rvt 不是预期位置。应该重新解决这个问题
-
@CodeConstruct 你是什么意思？程序集位于 A:\code\Workspaces\csa\App\bin\Debug\net461 中，result.rvt 比它高 4 级。
标签： javascript c# vue.js asp.net-core file-transfer