selectItems java.lang.IllegalArgumentException [英] selectItems java.lang.IllegalArgumentException
本文介绍了selectItems java.lang.IllegalArgumentException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
在发布之前，我确实花了很多时间，但是我似乎并没有将问题的源头缩小.
I really have given this quite some time before posting it, but I just don't seem to narrow down to the source of the trouble.
我有这个基本"的简单代码，让我们说一下，一旦单击<p:commandButton>，就会触发一个操作，该操作将填充要在<p:dataTable>上调用的ArrayList.
I have this "basically" simple code, let's just say that once I click on a <p:commandButton>, an action is fired that fills an ArrayList which is to be invoked on a <p:dataTable>.
我的<p:commandButton>是:
<p:commandButton value="Afficher" actionListener="#{fieldController.fillListFields()}" ajax="false"/>
至于我的<p:dataTable>，是这样的:
<p:dataTable var="car" value="#{fieldController.listFields}" id="carList" editable="true">
#{fieldController.listFields}是ArrayList，#{fieldController.fillListFields()}必须负责填充. fillListFields()的代码是:
The #{fieldController.listFields} is an ArrayList that the #{fieldController.fillListFields()} must take care of filling. The code for fillListFields() is :
public void fillListFields() throws NamingException, SQLException {
InitialContext ctx = new InitialContext();
DataSource ds = (DataSource) ctx.lookup("postgresJNDI");
Connection connection = ds.getConnection();
Statement st = connection.createStatement();
ResultSet rs = st.executeQuery("SELECT * FROM " + consultCarto.getForm());
ResultSetMetaData rsmd = rs.getMetaData();
int columnCount = rsmd.getColumnCount();
for (int i = 1; i < columnCount + 1; i++) {
listFields.add(new Field(rsmd.getColumnName(i), ""));
}
rs.close();
st.close();
connection.close();
}
现在，我已经调试了此方法，并且ArrayList listFields已经很好地填充了，我可以向您保证.
问题是，一旦我部署了应用程序并单击<p:commandButton>，我得到的是java.lang.IllegalArgumentException，我不知道JSF页面上的哪个组件没有收到适当的参数(顺便说一句，我知道它在JSF页面中，因为我得到
Now I have debugged this method and the ArrayList listFields is well filled, that much I can assure you.
Problem is once I deploy the app and click on the <p:commandButton> I get a java.lang.IllegalArgumentException, I have no idea which component on the JSF page is not receiving proper argument (btw I know it's in the JSF page because I get
SEVERE: Error Rendering View[/consult_carto.xhtml]
java.lang.IllegalArgumentException
)
我检查了设置器和吸气器，它们看起来还不错.
I checked the setters and getters, and they look ok.
任何迹象表明我应该去哪里看?
Any indications on where I should look ?
堆栈:
java.lang.IllegalArgumentException
at com.sun.faces.renderkit.SelectItemsIterator.initializeItems(SelectItemsIterator.java:216)
at com.sun.faces.renderkit.SelectItemsIterator.hasNext(SelectItemsIterator.java:135)
at com.sun.faces.renderkit.html_basic.MenuRenderer.renderOptions(MenuRenderer.java:762)
at com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:844)
at com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer.java:298)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1764)
at org.primefaces.component.celleditor.CellEditorRenderer.encodeEnd(CellEditorRenderer.java:43)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1764)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1760)
at org.primefaces.component.datatable.DataTableRenderer.encodeCell(DataTableRenderer.java:808)
at org.primefaces.component.datatable.DataTableRenderer.encodeRow(DataTableRenderer.java:773)
at org.primefaces.component.datatable.DataTableRenderer.encodeTbody(DataTableRenderer.java:651)
at org.primefaces.component.datatable.DataTableRenderer.encodeRegularTable(DataTableRenderer.java:234)
at org.primefaces.component.datatable.DataTableRenderer.encodeMarkup(DataTableRenderer.java:196)
at org.primefaces.component.datatable.DataTableRenderer.encodeEnd(DataTableRenderer.java:82)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1764)
at org.primefaces.component.panelgrid.PanelGridRenderer.encodeDynamicBody(PanelGridRenderer.java:92)
at org.primefaces.component.panelgrid.PanelGridRenderer.encodeBody(PanelGridRenderer.java:60)
at org.primefaces.component.panelgrid.PanelGridRenderer.encodeEnd(PanelGridRenderer.java:49)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1764)
at org.primefaces.component.panelgrid.PanelGridRenderer.encodeDynamicBody(PanelGridRenderer.java:92)
at org.primefaces.component.panelgrid.PanelGridRenderer.encodeBody(PanelGridRenderer.java:60)
at org.primefaces.component.panelgrid.PanelGridRenderer.encodeEnd(PanelGridRenderer.java:49)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1764)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1757)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1760)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1760)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:402)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:288)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1542)
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.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)
Thanks.
我的标记的必要部分:
<h:form id="form" style="font-size: 13px;">
<p:panelGrid columns="2">
<f:facet name="header">
Consulter les données cartographiques
</f:facet>
<p:panelGrid columns="1">
<p:panelGrid columns="2" style="width: 100%;text-align: center">
<p:outputPanel>
<h:outputText value="Choisir un formulaire : " />
<br></br>
<br></br>
<p:selectOneMenu value="#{consultCarto.form}" >
<f:selectItem itemLabel="Select One" itemValue="" />
<f:selectItems value="#{consultCarto.forms}" />
</p:selectOneMenu>
</p:outputPanel>
<p:commandButton value="Afficher" actionListener="#{fieldController.fillListFields()}" ajax="false"/>
</p:panelGrid>
<!-- start of filter panel -->
<div id="filter_datatable" >
<p:dataTable var="car" value="#{fieldController.listFields}" id="carList" editable="true">
<f:facet name="header">
Requête
</f:facet>
<p:ajax event="rowEdit" listener="#{fieldController.onEdit(event)}" />
<p:ajax event="rowEditCancel" listener="#{fieldController.onCancel(event)}" />
<p:column style="width:6%">
</p:column>
<p:column headerText="Champ" style="width:24%">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{car.field}" />
</f:facet>
<f:facet name="input">
<h:selectOneMenu value="#{car.field}" >
<f:selectItems value="#{car.field}"
var="man"
itemLabel="#{man}"
itemValue="#{man}" />
</h:selectOneMenu>
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="Valeur" style="width:20%">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{car.value}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{car.value}" style="width:100%" label="pseudo"/>
</f:facet>
</p:cellEditor>
</p:column>
<p:column style="width:6%">
<p:rowEditor />
</p:column>
</p:dataTable>
<p:commandButton value="Filtrer"/>
</div>
<!-- end of filter panel -->
</p:panelGrid>
<iframe name="iframe" src="carto.jsp" height="500" width="950" id="iframe"></iframe>
</p:panelGrid>
</h:form>
推荐答案
答案就在堆栈跟踪中.
java.lang.IllegalArgumentException
at com.sun.faces.renderkit.SelectItemsIterator.initializeItems(SelectItemsIterator.java:216)
at com.sun.faces.renderkit.SelectItemsIterator.hasNext(SelectItemsIterator.java:135)
at com.sun.faces.renderkit.html_basic.MenuRenderer.renderOptions(MenuRenderer.java:762)
at com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:844)
at com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer.java:298)
在<h:selectOneMenu>中使用了MenuRenderer. SelectItemsIterator在<f:selectItems>中使用.仅查看
The MenuRenderer is been used in <h:selectOneMenu>. The SelectItemsIterator is been used in <f:selectItems>. It's helpful to just look at line 216 of SelectItemsIterator as identified in the stack trace:
203 if (value != null) {
204 if (value instanceof SelectItem) {
205 updateSingeItemIterator((SelectItem) value);
206 items = singleItemIterator;
207 } else if (value.getClass().isArray()) {
208 items = new ArrayIterator(ctx, (UISelectItems) kid, value);
209 } else if (value instanceof Iterable) {
210 items = new IterableItemIterator(ctx,
211 (UISelectItems) kid,
212 (Iterable<?>) value);
213 } else if (value instanceof Map) {
214 items = new MapIterator((Map) value);
215 } else {
216 throw new IllegalArgumentException();
217 }
218 }
因此，这是由于<f:selectItems value>不是SelectItem或数组，Iterable或Map的实例，而是完全不同且非法/不受支持的类型引起的.
It's thus caused by the <f:selectItems value> not being an instance of SelectItem, or array, or Iterable or Map, but being completely different and illegal/unsupported type.
根据我们的selectOneMenu Wiki页面，相应地修复<h:selectOneMenu>用法.
Fix the <h:selectOneMenu> usage accordingly based on our selectOneMenu wiki page.
这篇关于selectItems java.lang.IllegalArgumentException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
