c# - ServiceStack 将服务中的值传递给响应属性

Question

我有一个服务：

[SomeResponse]
public class SomeService : ServiceBase {
    public string[] CacheMemory{ get; set; }
    //....
}

public class SomeResposeAttribute : ResponseFilterAttribute {
    public override void Execute(IHttpRequest req, IHttpResponse res, object requestDto) {
            //I want to access SomeService->CacheMemory here?? How?
        }
}

现在，如果我需要CacheMemory在返回之前对响应属性做一些事情。我如何访问它？谢谢你。

Answer 1

Filter Attributes 无权访问 Service 实例，您可以使用字典在整个ServiceStack 的 Request PipelineIRequest.Items中将对象传递给不同的处理程序，例如：

[MyResponseFilter]
public class SomeService : Service 
{
    public string[] CacheMemory { get; set; }

    public object Any(Request request)
    {
        base.Request.Items["CacheMemory"] = CacheMemory;
        //...
        return response;
    }
}


public class MyResponseFilterAttribute : ResponseFilterAttribute 
{
    public override void Execute(IRequest req, IResponse res, object dto) 
    {
        var cacheMemory = (string[])req.Items["CacheMemory"];
    }
}