action

问题 I was reading Struts2 In Action, and it says for each request an ActionContext , a ValueStack and an Action instance are created, so they are thread safe. I was wondering how does the framework manages session, because it can't be stored in these locations, where does the actual Map gets stored, and how concurrent access to that Map is managed by the framework? 回答1: The http session is stored in the SessionMap which is among the other context maps is stored in the action context by the

问题 I have this code for the C# in Visual Studio 2012. public Task SwitchLaserAsync(bool on) { return Task.Run(new Action(() => SwitchLaser(on))); } This will execute SwitchLaser method (public nonstatic member of a class MyClass ) as a task with argument bool on. I would like to do something similar in managed C++/CLI. But I am not able to find out any way how to run a task, which will execute a member method taking one parameter. Current solution is like this: Task^ MyClass::SwitchLaserAsync(

问题 I am starting a request for an image pick: Intent intent = new Intent(); intent.setType( "image/*" ); intent.setAction( Intent.ACTION_GET_CONTENT ); startActivityForResult( Intent.createChooser( intent, "Choose"), PHOTO_GALLERY ); And getting the data back out in onActivityResult : if( resultCode == Activity.RESULT_OK && requestCode == PHOTO_GALLERY ) { U.log( data.getData() ); Bitmap bm = ... // built from the getData() Uri this.postImagePreview.setImageBitmap( bm ); } When I launch the

问题 I'm working on a site that has quite a few pages that fall outside my limited understanding of RESTful design, which is essentially: Create, Read, Update, Delete, Show, List Here's the question: what is a good system for labeling actions/routes when a page doesn't neatly fall into CRUD/show/list? Some of my pages have info about multiple tables at once. I am building a site that gives some customers a 'home base' after they log on. It does NOT give them any information about themselves so it

问题 Might be that I'm a noob and not fully understanding how this stuff should work yet, but I have an epic in redux-observable in which I want to use as a way to create a promise which will dispatch an action and wait for a different action before resolving. I've got it working by mapping the action to '__IGNORE__' but I really don't want to do that. Is there any way to just have an epic handle an action, but not pass anything else on? Here's my code: export const waitFor = (type, action) => new

问题 I'm using the code below to pick an image file from device gallery: First I call this piece of code: Intent i = new Intent(); i.setType("image/*"); i.setAction(Intent.ACTION_GET_CONTENT); startActivityForResult(Intent.createChooser(i, "Select Picture"), RESULT_LOAD_IMAGE); This is my onActivityResult method: @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == RESULT_LOAD_IMAGE &&

问题 I want to generate some HTML content and put this into a UIWebView. The HTML contains some buttons. Is it possible to define actions for these buttons? I want to call a method (e.g. firstButtonPressed) in my objective-c code when someone presses this button in the UIWebView. Thanks you for helping me. 回答1: Just to follow up on this, it is possible, and not to difficult to connect HTML/javascript events to objective-c methods. Damien Berrigaud came up with a good example of how to do that by

问题 I have ItemController and in actionView I put gridview of my Itempicture, and I want when I click on icon view, update and delete then go to ItempictureController. so How to change controller action in gridview with different controller? 回答1: You need to set $controller property of yii\grid\ActionColumn. In your case, try this: [ 'class' => 'yii\grid\ActionColumn', 'controller' => 'itempicture' ] http://www.yiiframework.com/doc-2.0/yii-grid-actioncolumn.html#$controller-detail If you are

问题 Whats the difference? When would you use a mouse listener? or a action listener? Please and Thank You! 回答1: ActionListener Doc's The listener interface for receiving action events. The class that is interested in processing an action event implements this interface, and the object created with that class is registered with a component, using the component's addActionListener method. When the action event occurs, that object's actionPerformed method is invoked. MouseListener Doc's The listener

问题 I have these actions: public class HomeController : Controller { public ActionResult Index () { ViewData ["Message"] = "Welcome to ASP.NET MVC on Mono!"; return View (); } public ActionResult Pages (string test) { ViewBag.Message = test; return View (); } } The pages action is not working. I get an error 500: System.TypeLoadException Could not load type 'System.Web.UnvalidatedRequestValuesBase' from assembly 'System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.