Using an array in Azure web app settings

问题

In my ASP.NET 5 (RC1) code I have an appsetting.json that looks something like this:

{
    "SomeSettings": {
        "PropA": "ValueA",
        "PropB": [
            "ValueB1",
            "ValueB2"
        ]
    }
}

These value are used when a run the code on my dev machine (ie. localhost). If I want to overwrite the "SomeSettings" in Azure's Application settings for the wep app, how would I specify the "PropB" array?

The SomeSettings.cs class that I want to store the information in looks like this:

public class SomeSettings
{
    public string PropA { get; set; }
    public List<string> PropB { get; set; }
}

The problem is "PropB" - how to I specify an array or List as a string in Azure - is this even possible?

In my Startup class's constructor I have:

var builder = new ConfigurationBuilder()
    .AddJsonFile("appsettings.json")
    .AddEnvironmentVariables();

And in my Startup class's Configure methods I have:

var someSettings = configuration.GetSection("SomeSettings").Get<SomeSettings>();

回答1:

Adding the settings under "App settings" like this will do the trick... Notice the ":0" and ":1" below

Format: Key -> Value

SomeSettings:PropA -> AzureValueA
SomeSettings:PropB:0 -> AzureValueB1
SomeSettings:PropB:1 -> AzureValueB2

If you aren't running on Windows, replace the colon : with double underscore __ to get your app to see the settings. So instead of e.g. SomeSettings:PropA, you'd use SomeSettings__PropA.

回答2:

Simple approach is store the JSON as string in AppSetting, and de-serialize by yourself

var serializer = new JavaScriptSerializer();
var settings = serializer.Deserialize<SomeSettings>(configuration.GetSection("SomeSettings"));

or you will have to create your own customer configuration i believe. https://msdn.microsoft.com/en-us/library/2tw134k3.aspx

来源：https://stackoverflow.com/questions/34063167/using-an-array-in-azure-web-app-settings