我需要解决这个问题 . 我正在使用带有c的jsf primefaces：foreach这里是我的代码 . 但是这段代码没有运行 .
<p:tab id="catagoryTab" title="#{hardvalue['tutor.reg.tab2']}">
<p:panel header="#{hardvalue['tutor.reg.tab2']}" id="rowCreator">
<h:outputLabel value="#{hardvalue['tutor.reg.selectStmt']}"></h:outputLabel>
<h:panelGrid columns="3" style="width:100%;">
<p:outputLabel value="#{hardvalue['tutor.reg.category.table.collection']}"/>
<p:outputLabel value="#{hardvalue['tutor.reg.category.table.level']}"/>
<p:outputLabel value="#{hardvalue['tutor.reg.category.table.subject']}"/>
</h:panelGrid>
<c:forEach begin="0" end="#{Registerbean.size -1}" varStatus="loop" var="row">
<h:panelGrid columns="3"
style="width:100%; border: 1px solid #d4f1ff; border-radius: 3px 3px 3px 3px; background:#F7FDFF 50% 50% repeat-x ;">
<p:selectOneMenu
value="#{Registerbean.selectedtutorialType[loop.index]}"
style="font-size:15px !important; width:100px;">
<p:ajax process="@this" update="levellist1_#{loop.index}, levellist2_#{loop.index}, subjectlist_#{loop.index}" event="change"
listener="#{Registerbean.updateRecords(loop.index)}" />
<f:selectItem itemLabel="#{hardvalue['tutor.tutorial']}"
itemValue="tutorial" />
<f:selectItem itemLabel="#{hardvalue['tutor.conversaion']}"
itemValue="conversation" />
<f:selectItem itemLabel="#{hardvalue['tutor.music']}"
itemValue="music" />
<f:selectItem itemLabel="#{hardvalue['tutor.other']}"
itemValue="other" />
</p:selectOneMenu>
<h:panelGrid columns="3" >
<p:selectOneMenu style="width:230px" id="levellist1_#{loop.index}" value="#{Registerbean.selectedtutorialLevelFrom[loop.index]}"
>
<f:selectItems value="#{Registerbean.levellist}" />
</p:selectOneMenu>
<p:outputLabel value=" #{hardvalue['tutor.reg.to']} " />
<p:selectOneMenu style="width:230px" id="levellist2_#{loop.index}" value="#{Registerbean.selectedtutorialLevelTo[loop.index]}"
>
<f:selectItems value="#{Registerbean.levellist}" />
</p:selectOneMenu>
</h:panelGrid>
<p:selectOneMenu id="subjectlist_#{loop.index}" value="#{Registerbean.selectedtutorialSubject[loop.index]}"
style="width:230px;"
label="#{hardvalue['tutorsearch.select']}" filter="true" filterMatchMode="startsWith"
panelStyle="width:383px">
<f:selectItems value="#{Registerbean.subjectslist}" />
</p:selectOneMenu>
</h:panelGrid>
</c:forEach>
<p:commandButton id="moreButton" value="#{hardvalue['tutor.reg.addmore']}" update="rowCreator" process="@this" actionListener="#{Registerbean.addNewRow}" />
</p:panel>
</p:tab>
上面的代码是向导中的一个选项卡 . 所以我需要在这之后继续下一页 . 但我无法获取值，因为它不允许我使用索引分配数组变量 . 这是我的支持
bean名称：@ManagedBean（name =“Registerbean”）
private Tutor tutor= new Tutor();
private String[] selectedtutorialType= new String[size];
private String[] selectedtutorialLevelFrom= new String[size];
private String[] selectedtutorialLevelTo= new String[size];
private String[] selectedtutorialSubject= new String[size];
public void addNewRow(){
System.out.println("In add row");
size++;
selectedtutorialSubject=selectedtutorialLevelTo= selectedtutorialLevelFrom=selectedtutorialType=new String[size];
}
这是我的flowlistner，我只是通过它检查这个选项卡的值 . flowListener = “＃”
public String onFlowProcess(FlowEvent event) {
System.out.println("tab id is:"+event.getOldStep());
if(event.getOldStep().equalsIgnoreCase("catagoryTab")){
for(int i=0;i<selectedtutorialType.length;i++){
System.out.println("selectedtutorialType : "+selectedtutorialType[i]);
System.out.println("selectedtutorialLevelFrom : "+selectedtutorialLevelFrom[i]);
System.out.println("selectedtutorialLevelTo : "+selectedtutorialLevelTo[i]);
System.out.println("selectedtutorialSubject : "+selectedtutorialSubject[i]);
}
}
return event.getNewStep();
}
我想要的是：我想绘制组件 . 添加行将在此处添加组件行 . 第一个组件的值更改，它仅反映该行中其他两个的值 . 但我不是这样做的 . 由于p：向导的下一个按钮不允许我向上移动 . 对于更新，它使用支持bean的这个功能 .
public void updateRecords(int index) {
System.out.println("In update records: "+index);
levellist = new ArrayList<String>();
if (selectedtutorialType[index].equals("tutorial")) {
subjectslist = Arrays.asList(tutorialSubject);
levellist = Arrays.asList(tutorialLevel);
System.out.println("tutorial selection done..");
return;
} else if (selectedtutorialType[index].equals("conversation")) {
subjectslist = Arrays.asList(conversationSubject);
levellist = Arrays.asList(conversationLevel);
System.out.println("Conversation selection done..");
return;
} else if (selectedtutorialType[index].equals("music")) {
subjectslist = Arrays.asList(musicSubject);
levellist = Arrays.asList(musicLevel);
System.out.println("Music selection done..");
return;
} else {
subjectslist = Arrays.asList(otherSubject);
levellist = Arrays.asList(otherLevel);
System.out.println("Other selection done..");
return;
}
}
该怎么办 . Plz的帮助 . 如果我遗失了，请告诉我 .
谢谢