我稍微修改了默认路由规则,如下所示:
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Home", action = "Index", id= (string)null } // Parameter defaults
);
然后我可以将url设置为:
/Controller/Action/myParam
/Home/Index/MyParam
默认操作索引为:
public ActionResult Index(string id)
{
//....
}
我可以使参数发挥作用。但是我想在OnActionExecuting中获得参数。我该怎么办?
public override void OnActionExecuting(ActionExecutingContext filterContext) {
string id = filterContext.RouteData.Values["id"];
//...
}
var valuesStr = new StringBuilder();
if (ctx.RouteData != null && ctx.RouteData.Values != null)
foreach (var v in ctx.RouteData.Values)
valuesStr.AppendFormat("/{0}", v.Value);
_logger.Info("executing {0}", valuesStr.ToString());
which results in the whole path
结果:
"/Get/Customer/215840"
它也应该在多个参数上起作用。
var vals = filterContext.ActionArguments.Values;
var fistobj = vals.FirstOrDefault();
var val = fistobj.GetType().GetProperties().FirstOrDefault(x => string.Equals(x.Name, "nameParameter", StringComparison.OrdinalIgnoreCase)).GetValue(fistobj);
if (val == null || val.ToString() != "value parameter")
{
filterContext.Result = new JsonResult(ExecuteResult.Fail(JanException.Parameter.API00001));
//base.OnActionExecuting(filterContext);
return;
}
OnActionExecuting和自定义属性InitializingActionAttribute的更多详细信息
public override void OnActionExecuting(ActionExecutingContext filterContext) { ControllerActionDescriptor controlActionDescriptor = (ControllerActionDescriptor)filterContext.ActionDescriptor; var attributes = controlActionDescriptor.MethodInfo.CustomAttributes; if (attributes.Any(a => a.AttributeType == typeof(InitializingActionAttribute))) { var vals = filterContext.ActionArguments.Values; var fistobj = vals.FirstOrDefault(); var val = fistobj.GetType().GetProperties().FirstOrDefault(x => string.Equals(x.Name, "nameParameter", StringComparison.OrdinalIgnoreCase)).GetValue(fistobj); if (val == null || val.ToString() != "value parameter") { filterContext.Result = new JsonResult(ExecuteResult.Fail(JanException.Parameter.API00001)); //base.OnActionExecuting(filterContext); return; } } base.OnActionExecuting(filterContext); }
public class MyAttribute : ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
//Do your stuff here
}
}
[MyAttribute]
public ActionResult Index(string id)
{
//....
}