. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 9.2. Request and Response classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 16.5. Context-relative resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . abstraction for web pages and we still have to take care of web-related tasks such as HTTP request/response handling, URL mapping, storing data into user sessions and so on. The biggest limit of MVC frameworks

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 9.2. Request and Response classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 16.5. Context-relative resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . abstraction for web pages and we still have to take care of web-related tasks such as HTTP request/response handling, URL mapping, storing data into user sessions and so on. The biggest limit of MVC frameworks

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 9.2. Request and Response classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 16.5. Context-relative resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . abstraction for web pages and we still have to take care of web-related tasks such as HTTP request/response handling, URL mapping, storing data into user sessions and so on. The biggest limit of MVC frameworks

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 9.2. Request and Response classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 16.5. Context-relative resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . abstraction for web pages and we still have to take care of web-related tasks such as HTTP request/response handling, URLs mapping, storing data into user session and so on. The biggest limit of MVC frameworks

public void renderHead(IHeaderResponse response) { response.render(JavaScriptHeaderItem.forUrl("https://code.jquery.com/" + "jquery.min.js")); response.render(JavaScriptHeaderItem.forScript("alert('page component (with AJAX behaviors). ● Refresh the HTML of a component. ● Execute JavaScript code as response to a specifc event. For the frst three operations we won’t write a single line of JavaScript AjaxRequestTarget is the main entity for AJAX development. Refresh HTML and add JavaScript to response ● A common parameter for AJAX handler is org.apache.wicket .ajax.AjaxRequestTarget, which can