model-view-controller

问题 What would be the Master Pages equivalent in the Java web development world? I've heard of Tiles, Tapestry and Velocity but don't know anything about them. Are they as easy to use as Master Pages? I want something as easy as set up one template and subsequent pages derive from the template and override content regions, similar to Master Pages. Any examples would be great!! 回答1: First, the equivalent of ASP.Net in Java is going to be a web framework, such as the ones you mention (Tiles,

问题 most of the time in the service code I would have something like this: public SomeService : ISomeService { ISomeRepository someRepository; public Do(int id) { someRepository.Do(id); } } so it's kinda redundant so I started to use the repositories directly in the controller is this ok ? is there some architecture that is doing like this ? 回答1: You lose the ability to have business logic in between. I disagree with this one. If business logic is where it should be - in domain model, then

问题 I am working on my HMVC project. Right now I am using data mappers in order to move data between the models (domain objects) and a MySQL database. Each mapper receives a MySQL adapter as dependency. The injected adapter receives a PDO instance (a database connection) as dependency and runs sql queries on the database. I also use a dependency injection container (Auryn). I'd like to be able to simultaneously retrieve data from storages of different types (MySQL database, PostgreSQL database,

问题 I am working on my HMVC project. Right now I am using data mappers in order to move data between the models (domain objects) and a MySQL database. Each mapper receives a MySQL adapter as dependency. The injected adapter receives a PDO instance (a database connection) as dependency and runs sql queries on the database. I also use a dependency injection container (Auryn). I'd like to be able to simultaneously retrieve data from storages of different types (MySQL database, PostgreSQL database,

问题 I would like to set three common attributes on my model for each @RequestMapping within the many controllers in a Spring Boot application. I have read about @ModelAttribute but it needs to be placed within each Controller. I have more than 20 controllers in my application and each having more than 10 @RequestMapping . Is there a way to set such model attributes in one place which gets initialized at the start of the application? 回答1: If you want to execute some code on Spring Boot startup,

问题 I am trying to build a comment system. The database structure TABLE `posts` ( `post_id` int(11) unsigned NOT NULL AUTO_INCREMENT, `post_text` text NOT NULL, `user_id` int(11) NOT NULL, `post_creation` TIMESTAMP NOT NULL ON UPDATE CURRENT_TIMESTAMP, PRIMARY KEY (`post_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci; TABLE `comments` ( `comment_id` int(11) unsigned NOT NULL AUTO_INCREMENT, `comment_text` text NOT NULL, `comment_creation` TIMESTAMP NOT NULL ON UPDATE CURRENT

问题 As part of a university project I'm developing a web application in PHP and trying to follow MVC principles as much as possible. I'm not using an off-the-shelf framework because I want as much of the project to be my work as possible to help get a higher mark. To delete an item (each item has an id, status, title, parent_id) from a database I go do the following process.... User hits a delete button and is asked to confirm When clicking confirmed a "page" loads which calls the controller,

问题 I am using the Zend skeleton application. I want to have a sub menu bar (via a template) injected underneath the default site wide menu bar, but I don't want to modify the site wide app settings, I'd like to just have it in the module. Looking at examples it seems I would have to manually inject the menu bar template in each of my controller's actions and in every template where I want it to appear like this: public function indexAction() { $view = new ViewModel(); $subNavView = new ViewModel

问题 I am using the Zend skeleton application. I want to have a sub menu bar (via a template) injected underneath the default site wide menu bar, but I don't want to modify the site wide app settings, I'd like to just have it in the module. Looking at examples it seems I would have to manually inject the menu bar template in each of my controller's actions and in every template where I want it to appear like this: public function indexAction() { $view = new ViewModel(); $subNavView = new ViewModel

问题 I'm representing Appointments in an entity bean which have a startTime and endTime of type Calendar . This is stored using JPA as TIMESTAMP . If I edit the Appointment object's start / end time it updates on the object itself during the session but it's not updated within the database itself. Other elements such as the Appointment's description successfully update in the database.. It's only he start and end time which are not. Entity class (this is indirectly updated in the database with