Freemarker相当于<tiles：insertattribute name =“contentName”> </tiles：insertattribute>

Question

你能否告诉我什么是＆lt;的freemarker等效标签？ tiles：insertAttribute name =“contentName”/＆gt; ？我试过用＆lt; @ tiles.insertAttribute name =“contentname”/＆gt;它会抛出错误（因为freemarker.core.InvalidReferenceException：未定义表达式图块）。

Answer 1

你必须告诉FreeMarker tiles是什么，例如通过从JspTaglibs哈希检索Tiles taglib。您可能想阅读the section about FreeMarker, servlets and taglibs from the FreeMarker manual。

Answer 2

来自此示例：http://alvinalexander.com/java/jwarehouse/struts/src/apps/showcase/src/main/webapp/tiles/layout.ftl.shtml

public protocol ViewControllerContainer {

    var topMostViewController: UIViewController? { get }
}

extension UIViewController: ViewControllerContainer {

    public var topMostViewController: UIViewController? {

        if let presentedView = presentedViewController {

            return recurseViewController(presentedView)
        }

        return childViewControllers.last.map(recurseViewController)
    }
}

extension UITabBarController {

    public override var topMostViewController: UIViewController? {

        return selectedViewController.map(recurseViewController)
    }
}

extension UINavigationController {

    public override var topMostViewController: UIViewController? {

        return viewControllers.last.map(recurseViewController)
    }
}

extension UIWindow: ViewControllerContainer {

    public var topMostViewController: UIViewController? {

        return rootViewController.map(recurseViewController)
    }
}

func recurseViewController(viewController: UIViewController) -> UIViewController {

    return viewController.topMostViewController.map(recurseViewController) ?? viewController
}