ASP.NET MVC4 Controller方法在C＃中返回具体类型而不是JSON

Question

How can I make a controller method return a list of objects and do something to it before sending the result back to the browser?

Changing the return type of a controller method from JsonResult to List will return the type of the result "System.Collections.Generic.List`1[MyObject]" in the request.

I am trying to do it through a custom result filter but when the result gets to the filter OnResultExecuted method, it is already jsonified to the text above. Is there anything I can do in the OnResultExecuting method to retrieve the list returned from the method and modify it?

Thanks!

Answer 1

If I understand from the comments, I think you are looking to do something like this

public interface ICtrlService {
    List<MyObject> SomeMethod();
}


public ControllerA : Controller {
    ICtrlService service;

    public MyController(ICtrlService service){
        this.service = service
    }

    public JsonResult SomeAction() {
        List<MyObject> result = service.SomeMethod();
        return Json(result);
    }
}

Your proxy can implement the service as stated.

public class ProxyB : ICtrlService {

    public List<MyObject> SomeMethod() {...}

}

You could even use the proxy as the injected dependency to your controller making sure that the controller will actually be providing the needed functionality.

Or use the common service as a dependency for your proxy.

public class ProxyB {
    ICtrlService service;
    public ProxyB(ICtrlService service) {
        this.service = service;
    }

    public List<MyObject> SomeProxyMethod() {
        var result = service.SomeMethod();    
        //...Do what you want with object
        return result;
    }
}

This will save the proxy from having to make calls to the controller as it will have access to the same common service functionality.