< f:websocket>标记库支持名称空间:http://xmlns.jcp.org/jsf/core，但未为名称定义标记:websocket [英] <f:websocket> Tag Library supports namespace: http://xmlns.jcp.org/jsf/core, but no tag was defined for name: websocket
本文介绍了< f:websocket>标记库支持名称空间:http://xmlns.jcp.org/jsf/core，但未为名称定义标记:websocket的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在将jsf 2.2升级到jsf 2.3，
使用wildfly 11.0.0 Beta作为服务器.
I'm upgrading jsf 2.2 to jsf 2.3,
using wildfly 11.0.0 Beta as server.
我按照此网站上的说明进行操作. http://arjan-tijms.omnifaces.org/p/jsf- 23.html#1396
i follow the instructions on this site. http://arjan-tijms.omnifaces.org/p/jsf-23.html#1396
服务器启动正常，应用程序运行正常. 当我调用push.xhtml(测试新的Websocket集成)时，
Server starts well and the application works fine. When i call the push.xhtml (testing the new Websocket Integration),
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:p="http://primefaces.org/ui"
>
<h:body>
<h:form id="form">
<p:growl autoUpdate="true" id="growl" showDetail="true" />
<div class="ui-g dashboard">
<p:panel id="musteriHafiza">
<div class="ui-g-12 ui-md-6 ui-lg-6 task-list">
<p:commandButton value="CLOCK PUSH" action="#{applicationBean.clockAction()}"></p:commandButton>
</div>
<f:websocket channel="clock" onmessage="socketListener"/>
<br />
<div id="clockId"></div>
</p:panel>
</div>
</h:form>
<script type="text/javascript">
function socketListener(message, channel, event) {
document.getElementById("clockId").innerHTML += message + "<br/>";
}
</script>
</h:body>
</html>
我收到此错误:
14:41:37,978 ERROR [io.undertow.request] (default task-10) UT005023: Exception handling request to /haag/user/push.xhtml: javax.servlet.ServletException: /user/push.xhtml @21,63 <f:websocket> Tag Library supports namespace: http://xmlns.jcp.org/jsf/core, but no tag was defined for name: websocket
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:671)
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.server.handlers.DisableCacheHandler.handleRequest(DisableCacheHandler.java:33)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:53)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:59)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:326)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:812)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: javax.faces.view.facelets.TagException: /user/push.xhtml @21,63 <f:websocket> Tag Library supports namespace: http://xmlns.jcp.org/jsf/core, but no tag was defined for name: websocket
at com.sun.faces.facelets.compiler.CompilationManager.pushTag(CompilationManager.java:311)
at com.sun.faces.facelets.compiler.SAXCompiler$CompilationHandler.startElement(SAXCompiler.java:268)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:498)
at org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:180)
at org.apache.xerces.impl.dtd.XMLDTDValidator.emptyElement(XMLDTDValidator.java:811)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:275)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1653)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:324)
at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:875)
at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:798)
at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:108)
at org.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1198)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:564)
at org.apache.xerces.jaxp.SAXParserImpl.parse(SAXParserImpl.java:298)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:195)
at com.sun.faces.facelets.compiler.SAXCompiler.doCompile(SAXCompiler.java:464)
at com.sun.faces.facelets.compiler.SAXCompiler.doCompile(SAXCompiler.java:440)
at com.sun.faces.facelets.compiler.Compiler.compile(Compiler.java:124)
at com.sun.faces.facelets.impl.DefaultFaceletFactory.createFacelet(DefaultFaceletFactory.java:481)
at com.sun.faces.facelets.impl.DefaultFaceletFactory.access$100(DefaultFaceletFactory.java:106)
at com.sun.faces.facelets.impl.DefaultFaceletFactory$1.newInstance(DefaultFaceletFactory.java:199)
at com.sun.faces.facelets.impl.DefaultFaceletFactory$1.newInstance(DefaultFaceletFactory.java:197)
at com.sun.faces.facelets.impl.DefaultFaceletCache$1.newInstance(DefaultFaceletCache.java:86)
at com.sun.faces.facelets.impl.DefaultFaceletCache$1.newInstance(DefaultFaceletCache.java:81)
at com.sun.faces.util.ExpiringConcurrentCache$1.call(ExpiringConcurrentCache.java:99)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at com.sun.faces.util.ExpiringConcurrentCache.get(ExpiringConcurrentCache.java:114)
at com.sun.faces.facelets.impl.DefaultFaceletCache.getFacelet(DefaultFaceletCache.java:124)
at com.sun.faces.facelets.impl.DefaultFaceletCache.getFacelet(DefaultFaceletCache.java:63)
at com.sun.faces.facelets.impl.DefaultFaceletFactory.getFacelet(DefaultFaceletFactory.java:295)
at com.sun.faces.facelets.impl.DefaultFaceletFactory.getFacelet(DefaultFaceletFactory.java:239)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.buildView(FaceletViewHandlingStrategy.java:1000)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:99)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:659)
... 42 more
有什么建议吗?
与标记库xmlns:f ="http://xmlns.jcp.org/jsf/core"有关吗?
Any suggestions?
Is it about the tag library xmlns:f="http://xmlns.jcp.org/jsf/core" ?
推荐答案
是的，我认为这与标记库有关.
Yes, i think it's about the tag library.
您是否正在使用工具进行依赖项处理(例如maven)，还是手动添加了jsf 2.3 jar? 确保库确实包含在您的构建路径中(检查项目属性). 如果您使用的是像maven这样的工具，请确保您的依赖关系是正确的.
Are you using a tool for dependency handling (like e.g. maven) or did you add the jsf 2.3 jar manually? Make sure the lib is really included in your build path (check project properties). If you're using a tool like maven, make sure your dependency is the right one.
或者，您可以尝试使用2.3规格的其他标签.如果这些都不起作用，那么问题肯定是缺少的库.
Alternatively you could try to use other tags of the 2.3 specs. If those aren't working either, the problem, for sure is the missing lib.
这篇关于< f:websocket>标记库支持名称空间:http://xmlns.jcp.org/jsf/core，但未为名称定义标记:websocket的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
