如何在appsettings.json配置应用程序设置，微软给出的方法：https://docs.microsoft.com/en-us/aspnet/core/fundamentals/configuration
下面是我的做法：
因为我建立的是空项目什么都没有，好多东西都需要新建和引用，新建appsettings.json文件，然后添加一个AppSettings字段，包含配置和值
在Models文件夹下创建一个AppSettingsModel.cs
NuGet包管理器引用或者在project.json写入下面这些包
"Microsoft.Extensions.Options.ConfigurationExtensions": "1.0.0",
"Microsoft.Extensions.Configuration.Json": "1.0.0"
然后在Startup.cs中配置
public class Startup
{
public Startup(IHostingEnvironment env)
{
var builder = new ConfigurationBuilder()
.SetBasePath(env.ContentRootPath)
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);
Configuration = builder.Build();
}
public IConfigurationRoot Configuration { get; }
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc();
services.AddOptions();
services.Configure<AppSettingsModel>(Configuration.GetSection("AppSettings"));
}
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
//这里的代码跟主题无关
}
}
然后修改一下Controller
public class BasicController : Controller
{
/// <summary>
/// 获取AccessToken
/// </summary>
/// <returns></returns>
public string GetAccessToken(IOptions<AppSettingsModel> settings)
{
string accessToken = AccessTokenContainer.TryGetAccessToken(settings.Value.WeixinAppId, settings.Value.WeixinAppSecret);
return accessToken;
}
}
这就算是配置成功了，也可以看此博主的文章：http://blchen.com/asp-net-read-config-from-appsettings-json/