我有一个使用 Redis 分布式缓存和 cookie 身份验证的 .NET Core 3 项目(最近从 2.2 升级)。
它目前看起来像这样:
public void ConfigureServices(IServiceCollection services)
{
// Set up Redis distributed cache
services.AddStackExchangeRedisCache(...);
...
services.ConfigureApplicationCookie(options =>
{
...
// Get a service provider to get the distributed cache set up above
var cache = services.BuildServiceProvider().GetService<IDistributedCache>();
options.SessionStore = new MyCustomStore(cache, ...);
}):
}
问题是
BuildServiceProvider()
导致构建错误:Startup.cs(...): warning ASP0000: Calling 'BuildServiceProvider' from application code results in an additional copy of singleton services being created. Consider alternatives such as dependency injecting services as parameters to 'Configure'.
这似乎不是一个选项 -
ConfigureApplicationCookie
在 Startup.ConfigureServices
并且只能配置新服务,Startup.Configure
可以使用新服务,但不能覆盖 CookieAuthenticationOptions.SessionStore
成为我的定制商店。我试过添加
services.AddSingleton<ITicketStore>(p => new MyCustomRedisStore(cache, ...))
之前 ConfigureApplicationCookie
,但这被忽略了。显式设置
CookieAuthenticationOptions.SessionStore
似乎是让它使用本地内存存储以外的任何东西的唯一方法。每我在网上找到的示例
BuildServiceProvider()
;理想情况下,我想做类似的事情:
services.ConfigureApplicationCookieStore(provider =>
{
var cache = provider.GetService<IDistributedCache>();
return new MyCustomStore(cache, ...);
});
或者
public void Configure(IApplicationBuilder app, ... IDistributedCache cache)
{
app.UseApplicationCookieStore(new MyCustomStore(cache, ...));
}
然后
CookieAuthenticationOptions.SessionStore
应该只使用我在那里配置的任何内容。如何让应用程序 cookie 使用注入(inject)的存储?
最佳答案
引用 Use DI services to configure options
如果您的自定义商店的所有依赖项都是可注入(inject)的,那么只需在服务集合中注册您的商店和所需的依赖项,并使用 DI 服务来配置选项
public void ConfigureServices(IServiceCollection services) {
// Set up Redis distributed cache
services.AddStackExchangeRedisCache(...);
//register my custom store
services.AddSingleton<ITicketStore, MyCustomRedisStore>();
//...
//Use DI services to configure options
services.AddOptions<CookieAuthenticationOptions>(IdentityConstants.ApplicationScheme)
.Configure<ITicketStore>((options, store) => {
options.SessionStore = store;
});
services.ConfigureApplicationCookie(options => {
//do nothing
}):
}
如果没有,则解决实际注册的内容
例如
//Use DI services to configure options
services.AddOptions<CookieAuthenticationOptions>(IdentityConstants.ApplicationScheme)
.Configure<IDistributedCache>((options, cache) => {
options.SessionStore = new MyCustomRedisStore(cache, ...);
});
笔记:
ConfigureApplicationCookie
uses a named options instance. - @KirkLarkin
public static IServiceCollection ConfigureApplicationCookie(this IServiceCollection services, Action<CookieAuthenticationOptions> configure)
=> services.Configure(IdentityConstants.ApplicationScheme, configure);
该选项在将其添加到服务时需要包含名称。
关于asp.net-core - 在没有 BuildServiceProvider() 的情况下为 ConfigureApplicationCookie 设置自定义 SessionStore,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/60394376/