ASP. NET Core Configuration

The configuration system for ASP. NET core is different from previous versions of ASP. System.Configuration and XML configuration file Web. config, which now supports various formats, is much more flexible than before.

Support several:

Memoryconfigurationprovider

Environmentvariablesconfigurationprovider

Commandlineconfigurationprovider

Jsonconfigurationprovider

Xmlconfiguationprovider

Iniconfigurationprovider

Custom Configurationprovider

Today we look at the use of Jsonconfig file:

Confgurationsource: A data source equivalent to a accessory, which can be memory and can be a configuration file. Configurationbuilder: Accessory Data Source Assembly workshop, is responsible for removing the data source for configuration class consumption configurations. Configuration: A mapping configuration class definition for the data: Public classcompanyinfooptions{ Publiccompanyinfooptions (iconfiguration config) { This. name=config["name"]; This. address=config["Address"]; This. CreateDate = DateTime.Parse (config["CreateDate"]);} PublicString name{Get;Set;}  PublicString address{Get;Set;}  PublicDateTime createdate{Get;Set;}}

Vscode File Organization:

{"CompanyInfo": {"Name": "hbb0b0","address": "Xi ' an Jinyelu number6"," CreateDate ":" 2017/08/06 "}}

Note the configuration file is in the running directory, and the configuration files that are different from the previous configuration are not copied to the bin directory.

called in main:classprogram{//section nameConst stringstr_sectioncompanyinfo="CompanyInfo";Static voidMain (string[] args) {Console.WriteLine (Directory.GetCurrentDirectory ());//Configtionbuilder InitializationvarConfig =NewConfigurationbuilder (). Setbasepath (Directory.GetCurrentDirectory ()). Addjsonfile ("Companyinfo.json", Optional:true, Reloadonchange:true). Build ();//Initialize Companyinfooptionscompanyinfooptions Options=Newcompanyinfooptions (config. GetSection (Str_sectioncompanyinfo)); Output

Console.WriteLine ($"name:{options. Name}"); Console.WriteLine ($"address:{options. Address}"); Console.WriteLine ($"createdate:{options. Createdate.tostring ()}");}}

ASP. NET Core Configuration