/// <summary>
/// 控制器执行的主入口方法
/// </summary>
private void OnProcessRequest()
{
//获取操作方法
ActionMethodInfo action = ((IActionExecutor)this).ActionSelector.GetActionMethod(ControllerContext);
//调用预置方法
if (this._PreActionExecute != null)
{
this._PreActionExecute(this, new ActionEventArgs(Name, ControllerContext.ActionName));
}
PreActionExecute();
//执行操作方法
((IActionExecutor)this).ExecuteAction(action);
}
/// <summary>
/// 从当前控制器实例执行请求的操作方法
/// </summary>
void IActionExecutor.ExecuteAction(ActionMethodInfo action)
{
if (action == null)
{
var op = OnActionNotFound();
switch (op.ToDo)
{
case DecisiveOperatingInstruction.Operation.Abort: return;
case DecisiveOperatingInstruction.Operation.ThrowException: throw op.ExcpetionToThrow;
case DecisiveOperatingInstruction.Operation.NoOperation: break;
}
if (_ActionNotFound != null)
{
_ActionNotFound(this, new ActionEventArgs(Name, ControllerContext.ActionName));
}
}
else
{
try
{
action.BaseMethod.Invoke(this, action.Parameters);
}
catch (Threading.ThreadAbortException)
{
//此异常由HttpResponse.End()导致，无需处理
}
catch (Exception e)
{
var op = OnActionExecutionError(e);
switch (op.ToDo)
{
case DecisiveOperatingInstruction.Operation.Abort: return;
case DecisiveOperatingInstruction.Operation.ThrowException: throw op.ExcpetionToThrow;
case DecisiveOperatingInstruction.Operation.NoOperation: break;
}
if (_ActionExecutionError != null)
{
_ActionExecutionError(this, new ActionExecutionErrorEventArgs(Name, ControllerContext.ActionName, e));
}
throw e;
}
}
}
