c# - 在 ASP.NET MVC Action 中使用 HttpClient 调用 SSRS

Question

我似乎无法使用 HttpClient 向报告服务器发送请求，因为结果总是 401(未经授权)。

Action 是

public async Task<FileStreamResult> SSRSTest()
            {

                //set credentials
                using (var handler = new HttpClientHandler { 
                    Credentials = new NetworkCredential("userName", "password"),
                    UseDefaultCredentials = false
                })

                using (var httpClient = new HttpClient(handler))
                {
                    //get *.pdf from report server
                    var response = await httpClient                      .GetStreamAsync("http://someip/ReportServer/Pages/ReportViewer.aspx?TheRemainingPartOfURL");


                    var contentDisposition = new ContentDisposition
                    {
                        FileName = "SomeReport.pdf",
                        Inline = false
                    };

                    //set content disposition
                    Response.AppendHeader("Content-Disposition", contentDisposition.ToString());

                    //return the file
                    return File(response, "application/pdf");
                }
            }

附加:

Pass a Report Parameter Within a URL

Export a Report Using URL Access

Export Formats

Generate Data Feeds from a Report

Answer 1

我已经使用 Fiddler 查看当我使用浏览器登录时发生了什么

Auth 标签是

WWW-Authenticate Header is present: Negotiate    
WWW-Authenticate Header is present: NTLM

所以即使有人告诉我身份验证是基本的，我也需要使用以下内容

 CredentialCache credentialCache = new CredentialCache();
            credentialCache.Add(new Uri("http://youruri"),"NTLM",new NetworkCredential(username, password));

            using (var handler = new HttpClientHandler
            {
                Credentials = credentialCache
            })

HttpClient 的其余代码是相同的。

附加:

Authentication with the Report Server

Selecting a Credential Type

Understanding SQL Server Reporting Services Authentication

Configure Basic Authentication on the Report Server