如何从由ServiceHost托管的IIS Web服务访问文件

Question

In my IIS application I open a file located in the wwwroot directory that way:

File.ReadAllText("ConfigFile.json");

IISExpress tries to open the file in C:\\Program Files (x86)\\IIS Express\\ConfigFile.json

I thought the wwwroot directory was the working directory but apparently it's not the case.

Log4net log files are written relatively to the working directory, and configuration manager files also. So I don't understand why opening a file with System.IO.File I have C:\\Program Files (x86)\\IIS Express as the working directory.

What's the best solution for that problem ? I suppose I don't have to touch the Current defined working directory.

Answer 1

You will need to inject IHostingEnvironment into your class to have access to the ApplicationBasePath property value

Suppose IHostingEnvironment type is env then you can use

File.ReadAllText(env.WebRootPath + "/ConfigFile.json");

like you have a function named Read then you can use

public void Read(IHostingEnvironment env)
{
   File.ReadAllText(env.WebRootPath + "/ConfigFile.json");
}

Answer 2

Ok, the solution that works in a IIS WCF Service, hosted by a ServiceHost class is:

AppDomain.CurrentDomain.BaseDirectory + "/ConfigFile.json"

It gives the full absolute path that is valid in my IIS Express environment and in the deployed IIS environment.