AUTOFAC v4.0+ registering components with a configuration file

Recently in the Li Yubao/openauth.net Project code, the novice said that do not understand. So, regardless of 3,721, imitation is the best learning, so I decided to create a project, the people's Code 1.1 copy over, savor.

In the course of the study, I discovered that the great gods used AUTOFAC to configure the file by the way. The autofac.configuration version is V3.3, and then I created the project with the V4.0.1. Originally wanted to register components with code, but to see the great God is registered through the configuration file, so, regardless of 3,721, I set a small goal, I want to use the v4.0.1 version of the configuration file to complete the way to register the component.

No more nonsense. Official website Documents in http://autofac.readthedocs.io/en/latest/configuration/xml.html#configuring-with-microsoft-configuration-4-0

There is a demo, such as

But when you copy the code to the project, you will find that the Addjsonfile method is an error, such as

Solution: How can I complete config. Addjsonfile this method.

In the degree of Niang after the discovery of basic all the pages are used addjsonfile this method

The reason is that Microsoft.Extensions.Configuration has 3 versions of this DLL.

Finally really helpless me, downloaded the source code of Microsoft.Extensions.Configuration components,: Https://codeload.github.com/aspnet/Configuration/zip/dev

After the study, it was found that the implementation classes of Iconfigurationsource (all abstract classes) have

Memoryconfigurationsource
Commandlineconfigurationsource
Environmentvariablesconfigurationsource
Fileconfigurationsource
Azurekeyvaultconfigurationsource

According to the Addjsonfile method above, I guess I need the fileconfigurationsource, and then I went to find the implementation class of the method class, found the approximate

Iniconfigurationsource
Jsonconfigurationsource
Xmlconfigurationsource

Similarly, according to the Addjsonfile method, I guess what I need is the Jsonconfigurationsource class.

With the above speculation, I can start.

In the VS Project reference right-click, find NuGet, search for Jsonconfigurationprovider, and then install

Then, again addjsonfile this sentence, I chose to use JSON, rather than XML to configure, the configuration file content was appended.

Finally, attach the main code (I am the ASP. NET MVC Project)

1. Create a containerbuilder.
var builder = new Containerbuilder ();
Iconfigurationbuilder config = new Configurationbuilder ();

Iconfigurationsource Autofacjsonconfigsource = new Jsonconfigurationsource ()
{
Path = "/config/autofac.json",
Optional = False,//boolean, default is False, can not write
Reloadonchange = false,//Ibid.
};

Config. ADD (Autofacjsonconfigsource);

Register the Configurationmodule with AUTOFAC.
var module = new Configurationmodule (config. Build ());
Builder. Registermodule (module);

Register your MVC controllers.
Builder. Registercontrollers (typeof (Mvcapplication). Assembly);

3.Build the container and store it for later use.
var container = Builder. Build ();

4. Implement Di (Dependencyresolver mode)
Dependencyresolver.setresolver (new Autofacdependencyresolver (container));

Finally, a description of the parameters of the configuration file, Link: https://github.com/autofac/Documentation/blob/master/docs/configuration/xml.rst

Attached: Contents of my Autofac.json file

AUTOFAC v4.0+ registering components with a configuration file