如何使用wicket创建无状态modaldialog？
我尝试了以下代码，但结果是出错。删除时不会发生错误 getStatelessHint() 重写，但这会使它有状态。如果不可能，那么使用不推荐的modalwindow是否可能？
html格式：
<!DOCTYPE html>
<html>
<head>
<style>
.modal-dialog { border-radius: 5px; }
.modal-dialog .modal-dialog-content { display: flex; flex-direction: column; }
.modal-dialog-overlay.current-focus-trap .modal-dialog-content { resize: both; }
.modal-dialog .modal-dialog-form { margin: 0; padding: 0; overflow: hidden; flex: 1; display: flex; flex-direction: column; }
.modal-dialog .modal-dialog-header { border-radius: 5px 5px 0px 0px; background: #ffb158; margin: 0; padding-top: 4px; text-align: center; }
.modal-dialog .modal-dialog-body { flex: 1; overflow-y: auto; padding: 20px; }
.modal-dialog .modal-dialog-footer { padding: 5px; }
</style>
</head>
<body>
<a wicket:id="openModalLink">Open modal</a>
<div id="window" wicket:id="window"></div>
<wicket:fragment wicket:id="modalContentFragment">
<h1>Modal Dialog</h1>
<a wicket:id="closeModalLink">Close modal</a>
</wicket:fragment>
</body>
</html>java 语：
package org.example.modaltest;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.AjaxLink;
import org.apache.wicket.extensions.ajax.markup.html.modal.ModalDialog;
import org.apache.wicket.extensions.ajax.markup.html.modal.theme.DefaultTheme;
import org.apache.wicket.markup.html.GenericWebPage;
import org.apache.wicket.markup.html.panel.Fragment;
public class ModalPage extends GenericWebPage<Void> {
public ModalPage() {
ModalDialog window = new ModalDialog("window");
window.add(new DefaultTheme());
window.setMarkupId("window");
window.setOutputMarkupId(true);
add(window);
Fragment modalContentFragment = new Fragment(ModalDialog.CONTENT_ID, "modalContentFragment", this);
window.setContent(modalContentFragment);
modalContentFragment.setOutputMarkupId(true);
AjaxLink<Void> closeModalLink = new AjaxLink<Void>("closeModalLink") {
@Override
public void onClick(AjaxRequestTarget target) {
target.add(window);
ModalDialog window1 = (ModalDialog) findPage().get("window");
window1.close(target);
}
@Override
protected boolean getStatelessHint() {
return true;
}
};
closeModalLink.setOutputMarkupId(true);
modalContentFragment.add(closeModalLink);
AjaxLink<Void> openModalLink = new AjaxLink<Void>("openModalLink") {
@Override
public void onClick(AjaxRequestTarget target) {
ModalDialog window1 = (ModalDialog) findPage().get("window");
window1.open(target);
}
@Override
protected boolean getStatelessHint() {
return true;
}
};
add(openModalLink);
}
}浏览器出错：
拒绝访问。您无权访问您请求的页面。返回主页
java异常：
16:34:16.382 [http-nio-8080-exec-4] WARN o.a.w.c.r.h.ListenerRequestHandler - behavior not enabled; ignore call. Behavior org.apache.wicket.ajax.markup.html.AjaxLink$1@5a149041 at component [AjaxLink [Component id = closeModalLink]]
16:34:16.386 [http-nio-8080-exec-4] WARN RequestCycleExtra -********************************
16:34:16.390 [http-nio-8080-exec-4] WARN RequestCycleExtra - Handling the following exception
org.apache.wicket.core.request.handler.ListenerInvocationNotAllowedException: Behavior rejected interface invocation. Component: [AjaxLink [Component id = closeModalLink]] Behavior: org.apache.wicket.ajax.markup.html.AjaxLink$1@5a149041
at org.apache.wicket.core.request.handler.ListenerRequestHandler.invoke(ListenerRequestHandler.java:276)
at org.apache.wicket.core.request.handler.ListenerRequestHandler.invokeListener(ListenerRequestHandler.java:222)
at org.apache.wicket.core.request.handler.ListenerRequestHandler.respond(ListenerRequestHandler.java:208)
at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:902)
at org.apache.wicket.request.RequestHandlerExecutor.execute(RequestHandlerExecutor.java:63)
at org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:283)
at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:254)
at org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:276)
at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:207)
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:306)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:494)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:651)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:407)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:754)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1376)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:834)
16:34:16.390 [http-nio-8080-exec-4] WARN RequestCycleExtra -********************************
1条答案
按热度按时间kt06eoxx1#
问题如下：无状态链接为每个请求创建一个新页面。新页面不知道模式对话框是以前打开的。因此，对嵌套closemodallink的请求被拒绝，因为它当前不可见。
您必须通过请求url传输有关打开对话框的信息。e、 g.您的closemodallink可以通过#updateajaxattributes（）向其请求中添加一个参数，该参数在创建新页面时被选中，并在请求时自动打开对话框。