Question

我有单页应用程序（所有AJAX），因此不需要页面版本控制。所以我做setVersioned(false)。但是，页面仍然在每个AJAX请求上序列化，我想知道原因。

我使用的Wicket版本是：7.6.0

WicketApplication.java

public class WicketApplication extends WebApplication {
    public Class<? extends WebPage> getHomePage() {
        return HomePage.class;
    }
    public void init() {
        super.init();
        getFrameworkSettings().setSerializer(new MySerizalizer("foo"));
        System.out.println("SERIALIZER: " + getFrameworkSettings().getSerializer().getClass().getName());
    }
    static class MySerizalizer extends org.apache.wicket.serialize.java.JavaSerializer {
        public MySerizalizer(String applicationKey) {
            super(applicationKey);
        }
        public byte[] serialize(Object object) {
            final byte[] serialize = super.serialize(object);
            System.out.println("serialized " + String.valueOf(serialize.length) + " bytes of " + object.getClass().getName());
            return serialize;
        }

    }
}

HomePage.java

public class HomePage extends WebPage {
    public HomePage() {
        final Label label = new Label("message", new PropertyModel<>(foo, "bar"));
        label.setOutputMarkupId(true);
        add(label);
        label.setVersioned(false);
        final AjaxLink<Foo> ajaxLink = new AjaxLink<Foo>("plus1") {
            public void onClick(AjaxRequestTarget target) {
                foo.inc();
                target.add(label);
            }
        };
        ajaxLink.setVersioned(false);
        add(ajaxLink);
        setVersioned(false);
        System.out.println("VERSIONED: " + isVersioned());
    }

    private Foo foo = new Foo();

    class Foo implements Serializable {
        int bar = 0;
        public String getBar() {
            return "bar is " + String.valueOf(bar);
        }
        public void inc() {
            bar += 1;
        }
    }
}

HomePage.html

<!DOCTYPE html>
<html>
    <body>
        <h1>home page</h1>
        <span wicket:id="message">Message goes here</span><br><br>
        <input type="button" wicket:id="plus1" value="add one"></input>
    </body>
</html>

日志：

SERIALIZER: com.foobar.WicketApplication$MySerizalizer
VERSIONED: false
serialized 2286 bytes of com.foobar.HomePage
serialized 2499 bytes of com.foobar.HomePage
serialized 2499 bytes of com.foobar.HomePage
serialized 2499 bytes of com.foobar.HomePage
serialized 2499 bytes of com.foobar.HomePage

对于每次点击按钮（org.apache.wicket.ajax.markup.html.AjaxLink），页面都会被序列化。为什么没有版本化？

Answer 1

仅存储无状态页面。页面版本控制是控制页面实例是否可以在商店中有多个版本。

从Wicket 7.4.0开始，make the Ajax components and behaviors stateless也可以！

Answer 2

有关无状态AJAX的文档，请参阅https://ci.apache.org/projects/wicket/guide/7.x/single.html#_stateless_ajax_components_behaviors

wicket：Page.setVersioned（false）但仍然序列化。为什么呢？

2 个答案: