我目前正在尝试构建一个复合组件,这就是我如何使用我的组件:
包括它 xmlns:albert="http://java.sun.com/jsf/composite/albert"
这是用法示例
<albert:infoButton
infoId="infoSingleRecord"
params="transDateFrom transDateTo"
mappingMethod="#{tBrowseBean_ConfirmedRPB.mapSendInfoSingleRecord}" />
这是放在resources/albert/infoButton.xhtml中的组件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.prime.com.tr/ui"
xmlns:fn="http://java.sun.com/jsp/jstl/functions"
xmlns:composite="http://java.sun.com/jsf/composite">
<composite:interface>
<composite:attribute name="infoId" required="true" />
<composite:attribute name="params" />
<composite:attribute name="mappingMethod" method-signature="java.lang.String action()" />
</composite:interface>
<composite:implementation>
<p:commandButton
process="@this #{cc.attrs.params}"
actionListener="#{cc.attrs.mappingMethod}"
update="#{cc.attrs.infoId}Panel"
oncomplete="#{cc.attrs.infoId}Dialog.show()"
image="ui-icon ui-icon-search" />
</composite:implementation>
</html>
但运行它,当单击infoButton时,此异常跟踪显示在我的catalina.out日志文件中:
Apr 25, 2011 10:08:43 AM javax.faces.event.MethodExpressionActionListener processAction
SEVERE: Received 'javax.el.PropertyNotFoundException' when invoking action listener '#{cc.attrs.mappingMethod}' for component 'j_idt71'
Apr 25, 2011 10:08:43 AM …我有以下按钮:
<h:commandButton
disabled="#{mybean.searching}"
binding="#{mybean.searchButton}"
actionListener="#{mybean.searchForLicenses}"
value="Search" />
当我调试时,我看到actionListener首先被调用两次,然后被调用三次,接下来单击四次,依此类推.
似乎每次重新加载时actionListener都会再次注册.
我正在使用Mojarra 2.1.3(也尝试过2.0.6)和Tomcat 7和IceFaces.
绑定是这样完成的:
private javax.faces.component.UICommand searchButton;
public void setSearchButton(UICommand searchButton) {
this.searchButton = searchButton;
}
public UICommand getSearchButton() {
return searchButton;
}
从这个答案由BalusC这里的行动和ActionListener的差异,Use actionListener if you want have a hook before the real business action get executed, e.g. to log it, and/or to set an additional property (by <f:setPropertyActionListener>,.但是,当我决定编写一些代码来测试它时,结果有点不同.这是我的小代码
<h:form id="form">
<h:panelGroup id="mygroup">
<p:dataTable id="mytable" value="#{viewBean.foodList}" var="item">
<p:column>
#{item}
</p:column>
<p:column>
<p:commandButton value="delete"
action="#{viewBean.delete}"
update=":form:mygroup">
<f:setPropertyActionListener target="#{viewBean.selectedFood}"
value="#{item}"/>
</p:commandButton>
</p:column>
</p:dataTable>
</h:panelGroup>
</h:form>
这是我的豆子
@ManagedBean
@ViewScoped
public class ViewBean {
private List<String> foodList;
private String selectedFood;
@PostConstruct
public void init(){
foodList = new ArrayList<String>();
foodList.add("Pizza");
foodList.add("Pasta");
foodList.add("Hamburger");
} …我是JSF的新手.我想知道JSF /导航规则的一点.我有四个页面,索引,p1,p2,p3.当我尝试导航到一个页面,其中action ="#{bean.gotoP1()} ",这是错误的;
"无法找到与from-view-id'/index.xhtml'匹配的导航案例,以便对行动'#{bean.gotoP1()}'结果'成功'"
我的问题很简单; 为什么我不能用#{bean.gotoP1()}导航,我必须删除括号#{bean.gotoP1}？
我的代码在下面;
的index.xhtml
<h:body>
<h:form>
<h:commandButton action="#{mybean.gotoP1()}" value="P1"/>
<h:commandButton action="#{mybean.gotoP2()}" value="P2"/>
<h:commandButton action="#{mybean.gotoP3()}" value="P3"/>
</h:form>
</h:body>
mybean.java
@ManagedBean
@RequestScoped
public class Mybean implements Serializable{
private static final long serialVersionUID=1L;
public Mybean() {
}
public String gotoP1(){
return "success";
}
public String gotoP2(){
return "success";
}
public String gotoP3(){
return "positive";
}
}
faces-config.xml中
<navigation-rule>
<from-view-id>/index.xhtml</from-view-id>
<navigation-case>
<from-action>#{mybean.gotoP1}</from-action>
<from-outcome>success</from-outcome>
<to-view-id>/p1.xhtml</to-view-id>
</navigation-case>
<navigation-case>
<from-action>#{mybean.gotoP2}</from-action>
<from-outcome>success</from-outcome>
<to-view-id>/p2.xhtml</to-view-id>
</navigation-case>
<navigation-case>
<from-action>#{mybean.gotoP3}</from-action>
<from-outcome>positive</from-outcome>
<to-view-id>/p3.xhtml</to-view-id>
</navigation-case>
</navigation-rule>
谢谢....
我有一个error-page指令将所有异常重定向到错误显示页面
我的web.xml:
<web-app [...]>
[...]
<error-page>
<exception-type>java.lang.Exception</exception-type>
<location>/view/error.xhtml</location>
</error-page>
</web-app>
它适用于几乎所有异常,但今天我注意到有时会记录JSF错误并且不处理异常(即,没有重定向到错误页面).
这是我在日志中的内容:
javax.enterprise.resource.webcontainer.jsf.context || JSF1073: javax.faces.event.AbortProcessingException caught during processing of INVOKE_APPLICATION 5 : UIComponent-ClientId=searchForm:j_idt147, Message=/view/listView.xhtml @217,7 actionListener="#{listController.nextPageClicked}": java.lang.NullPointerException
javax.enterprise.resource.webcontainer.jsf.context || /view/listView.xhtml @217,7 actionListener="#{listController.nextPageClicked}": java.lang.NullPointerException
javax.faces.event.AbortProcessingException: /view/listView.xhtml @217,7 actionListener="#{listController.nextPageClicked}": java.lang.NullPointerException
at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:182)
at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88)
at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:769)
at javax.faces.component.UICommand.broadcast(UICommand.java:300)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.doChainInvoke(StandardPipeline.java:600)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:96)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162) …我有一个添加一些数据的对话框:
<p:commandButton id="save"
actionListener="#{adminNationalController.saveTeam}"
action="#{adminManageInternationalTournamentController.updateTeamList}"
value="#{msg.save}" ajax="true"
icon="ui-icon-check"
onmousedown="return validateSubmit('addCombinedTeamForm', ['name'],'lang')"
oncomplete="if (!args.validationFailed) addCombinedTeamDialog.hide()"
process = "@form"
update="lang, name, :manageTournament:dataList,:manageTournament:scroll, :menuForm:growl, :manageTournament:nationalTeam">
<f:setPropertyActionListener
value="#{adminNationalController.newTeamBean}"
target="#{adminManageInternationalTournamentController.newTeamBean}"/>
</p:commandButton>
在saveTeam我尝试验证数据,但action案例验证失败.
是否可以禁止呼叫行动？
尝试h:dataTable使用支持 bean显示 a 时出现以下异常
javax.faces.el.MethodNotFoundException: javax.el.MethodNotFoundException: /table.xhtml @29,36 action="#{user.editEmployee}": Method not found: com.jason.jsf.User@1df228e.editEmployee()
javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
javax.faces.component.UICommand.broadcast(UICommand.java:311)
javax.faces.component.UIData.broadcast(UIData.java:912)
javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:781)
javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1246)
com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
当我使用这些文件执行以下代码时，因为我是 jsf 的新手并且正在学习，请帮忙做一些解释
雇员.java
package com.jason.jsf;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
@ManagedBean(name = "employee", eager = true)
@SessionScoped
public class Employee {
private String Id, name;
private boolean canEdit;
public Employee() {
super();
// TODO Auto-generated constructor stub
}
public Employee(String id, String name) {
super();
Id = id;
this.name = name;
}
public String …以下行应该保存一个新项目并重定向到另一个页面.到目前为止,它正确保存,但它没有重定向.没有错误或警告.
<p:commandButton id="savebutton" ajax="false" value="#{msg['addCategory.save']}" actionListener="#{addCategoryController.doSave()}" />
代码背后:
public String doSave(){
categoryAddEvent.fire(categoryProducer.getSelectedCategory());
return Pages.LIST_CATEGORIES;
}
正如我所说,第一行正确执行,第二行似乎没有做任何事情.我有什么想法可能做错了吗？
我正在研究一个小型的webtool练习和导航规则已引起我的注意.所以我看了几个网络教程,并亲自尝试过,这对我不起作用.它不会重定向到所需的页面.
faces-config.xml(只有那个重要的部分)
<navigation-rule>
<from-view-id>/kursleiter.xhtml</from-view-id>
<navigation-case>
<from-action>#{verifyCredentials.save}</from-action>
<from-outcome>ok</from-outcome>
<to-view-id>/teilnehmer.xhtml?faces-redirect=true</to-view-id>
</navigation-case>
</navigation-rule>
返回值的类 <from-outcome>
public class verifyCredentials() {
public String save(Klasse klasse, Module modul) {
//do some other stuff
return "ok";
}
}
按下此commandLink时,应该发生重定向
<p:commandLink actionListener="#{verifyCredentials.save(klasse, modul)}">#{modul.modulnummer} </p:commandLink>
现在,这给我带来了几个问题:
/faces/的<from-view-id>？提前谢谢 - Reteras