. NET Core Read Appsettings.json

{  "Logging": {    "Includescopes":false,    "LogLevel": {      "Default":"Warning"    }  },  "AppSettings": {    "sqlserverconnection":"Server=127.0.0.1;database=demo; User Id=sa; Password=sa;",    "rediscaching": {      "Enabled":true,      "ConnectionString":"127.0.0.1:6379"    }  }}

1. Initial injection mode

Startup.cs under Configureservices method:

Services. AddOptions (); services. Configure<AppSettings> (configuration.getsection ("AppSettings"));

 Public classappsettings{ PublicRediscaching rediscaching {Get;Set; }} Public classrediscaching{/// <summary>     ///is enabled/// </summary>      Public BOOLEnabled {Get;Set; } /// <summary>     ///Link Information/// </summary>      Public stringConnectionString {Get;Set; }}

Then call in the controller:

 Public ReadOnly Ioptions<appsettings> Setting;  Public HomeController (ioptions<appsettings> setting) {    = setting;}  Public Iactionresult Index () {    var s = Setting.Value.RedisCaching.ConnectionString;    viewdata["ABC"] = s;     return View ();}

2. Read Appsettings.json mode (this method is required to reference Microsoft.Extensions.Options.ConfigurationExtensions in a separate class library)

1) First set the Appsettings.json file to the root directory. Right-Appsettings.json advanced copy to the output directory, select Always copy.

　　　　

2)

 Public T get<t> (string  key)        {            new  Configurationbuilder (). Setbasepath (Directory.GetCurrentDirectory ())                . Addjsonfile ("appsettings.json"truetrue). Build ();            return config. GetSection (Key). Get<t>();        }

 Public iactionresult Index ()        {            var s = new getappsetting (). Get<string> ("Appsettings:sqlserverconnection");              viewdata["ABC"] = s;             return View ();        }

The first method in other class library can also be called, more convenient, just do the core project, with the first method when the class library is not good call, checked for half a day with the second kind of can.

. NET Core Read Appsettings.json