无法从App.Config中提取设置-返回值始终为null [英] Can't Pull settings from App.Config - Return is always null

问题描述

大家好，

我想以此作为开头，我已经在互联网上搜索了数小时的解决方案. Azure Cloud Configuration Manager可以为我提取连接字符串，但是我不能提取标准应用程序设置.返回的值始终为".

I want to preface this with, I have searched the internet for hours for a solution.  Azure Cloud Configuration Manager is able to pull connection strings for me, however I can not pull standard app settings.  The value returned is always "".

这是应用程序配置文件:

Here is the app config file:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
  </startup>
    <appSettings>
      <add key="StorageConnectionString" value="DefaultEndpointsProtocol=https;AccountName=YOURNAME;AccountKey=YOURKEY"></add>
      <add key="TwitterConsumerKey" value="YOURCONSUMERKEY"></add>
      <add key="TwitterConsumerSecret" value="YOURCONSUMERSECRET"></add>
      <add key="TwitterAccessToken" value="YOURACCESSTOKEN"></add>
      <add key="TwitterAccessSecret" value="YOURACCESSSECRET"></add>
    </appSettings>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

这是代码:

module OAuthProvider

open System.Configuration
open System.Security.Cryptography
open System
open System.Text
open System.Net.Http
//sample requestUri: "https://stream.twitter.com/1.1/statuses/filter.json"
//sample requestType: "POST"
let GetOAuthResponse (requestUri: string) (requestType: string) =
    //Get OAuth Tokens
    let token = ConfigurationManager.AppSettings.Item("TwitterAccessToken")
    let tokenSecret = ConfigurationManager.AppSettings.Item("TwitterAccessSecret")
    let consumer = ConfigurationManager.AppSettings.Item("TwitterConsumerKey")
    let consumerSecret = ConfigurationManager.AppSettings.Item("TwitterConsumerSecret")

这只是函数的开始，它会继续构建流，您现在可以返回0，或演示一个设置值.

That's just the beginning of the function, it goes on to build a stream, you can return 0 for now, or a setting value to demonstrate.

我正在使用Visual Studio 2013 Community Edition和F#控制台应用程序.

I am using Visual Studio 2013 Community Edition and a F# console application.

非常感谢您的帮助.

谢谢

〜大卫

推荐答案

我只是整理了一个普通的F#控制台应用程序(在VS2010中，用于.net 4，但带有4.5.2  ；已安装)；根据您的示例:-

I just put together a vanilla F# console application (in VS2010, for .net 4, but with 4.5.2  installed) based on your sample: --

open System.Configuration

let token = ConfigurationManager.AppSettings.["TwitterAccessToken"] // more idiomatic
let tokenSecret = ConfigurationManager.AppSettings.Item("TwitterAccessSecret")
let consumer = ConfigurationManager.AppSettings.Item("TwitterConsumerKey")
let consumerSecret = ConfigurationManager.AppSettings.Item("TwitterConsumerSecret")

[ token; tokenSecret; consumer; consumerSecret ] |> List.iter (printfn "%A")

ConfigurationManager.AppSettings
|> (printfn "%A")

printfn "%A" <| ConfigurationManager.AppSettings.Item("Extra")

printfn "Done"

并获得输出

"YOURACCESSTOKEN"
"YOURACCESSSECRET"
"YOURCONSUMERKEY"
"YOURCONSUMERSECRET"
seq
  ["StorageConnectionString"; "TwitterConsumerKey"; "TwitterConsumerSecret";
   "TwitterAccessToken"; ...]
<null>
</null>

我要检查的第一件事是验证.exe.config与.exe在同一位置.

The first thing I'd check is to verify that the .exe.config is co-located with the .exe.

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