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java - 在 View 中发现重复的组件 ID

In lại 作者：塔克拉玛干 更新时间：2023-11-03 03:50:17 26 4
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我收到一个错误，如 Component ID component has already been found in the view inside tree table column tag with id=col1。对于这个单个 xhtml 文件，我有两个托管 Bean，并且都在 session 范围内。




  xmlns:h="http://xmlns.jcp.org/jsf/html"
  xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
  xmlns:p="http://primefaces.org/ui"
  xmlns:f="http://xmlns.jcp.org/jsf/core">

    Category and Brand Manage Page


    
                      
            
                

                
                    

                        
                        
                            
                            
                               
                        

                        
                        
                            
                            
                            
                        

                        
                        
                            
                          
                    
                    
                        
                        
                        
                    
                

                
                    

                        
                        
                            
                            
                            
                        

                        
                        
                            
                            
                            
                            
                        
                      

                    
                        
                        
                            
                            
                            
                                                      

                        
                        
                            
                         
                    

                    
                        
                        
                            
                            
                            
                        

                        
                        
                            
                         
                    

                    
                            
                                        

                    
                                 selectionMode="single" selection="#{categoryManagedBean.selectNode}">

                        
                            Categories
                        

                        
                            
                                Category Name
                            
                            
                        

                        
                           
                               Biên tập
                           
                            
                               
                           
                        

                          
                           
                               Delete
                           
                            
                                style="float: right; background-image: url('../resources/images/delete.jpg'); background-repeat: no-repeat;
                                background-size: 100% 100%; background-origin : border-box; width: 30px; height: 20px;">


堆栈跟踪

SEVERE: JSF1007: Duplicate component ID productform:categorytree:col1 found in view.
Dec 12, 2013 5:27:01 PM com.sun.faces.util.Util checkIdUniqueness
SEVERE: +id: j_id1
type: javax.faces.component.UIViewRoot@9ce387
+id: javax_faces_location_HEAD
 type: com.sun.faces.component.ComponentResourceContainer@1f54217
+id: j_id2
 type: javax.faces.component.UIOutput@c5f91c
+id: j_id3
 type: javax.faces.component.UIOutput@165c08a
+id: j_id4
 type: javax.faces.component.UIOutput@143b527
+id: j_id5
 type: javax.faces.component.UIOutput@2a237a
+id: j_id6
 type: javax.faces.component.UIOutput@7f29f4
+id: j_id7
 type: javax.faces.component.UIOutput@9b66f1
+id: j_id8
 type: javax.faces.component.UIOutput@837332
+id: j_id9
 type: javax.faces.component.UIOutput@1fffbc8
+id: j_idt1
type: 


+id: j_idt2
 type: javax.faces.component.UIOutput@1ddf77
+id: j_idt3
 type: 
            
            Madharsha Control Panel Page

  +id: j_idt4
  type: javax.faces.component.html.HtmlBody@14ba6a4
   +id: j_idt5
   type: org.primefaces.component.layout.Layout@1a96d23
   +id: header
   type: org.primefaces.component.layout.LayoutUnit@3c41cb
    +id: j_idt6
     type: org.primefaces.component.outputlabel.OutputLabel@39137
     +id: j_idt7
      type: org.primefaces.component.layout.LayoutUnit@32e320
      +id: layoutform
      type: javax.faces.component.html.HtmlForm@dd4f1b
       +id: rootmenu
       type: org.primefaces.component.menubar.Menubar@1747f49
        +id: homemenu
         type: org.primefaces.component.menuitem.UIMenuItem@150d2fe
        +id: mastermenu
         type: org.primefaces.component.submenu.UISubmenu@14c3f17
          +id: j_idt8
           type: org.primefaces.component.menuitem.UIMenuItem@c23503
          +id: j_idt9
           type: org.primefaces.component.menuitem.UIMenuItem@265e80
        +id: tabletmenu
         type: org.primefaces.component.menuitem.UIMenuItem@1063704
        +id: logoutmenu
         type: org.primefaces.component.menuitem.UIMenuItem@105ea2f
        +id: loginmenu
         type: org.primefaces.component.menuitem.UIMenuItem@151e258
      +id: productform
      type: javax.faces.component.html.HtmlForm@e33152
       +id: messages
       type: org.primefaces.component.growl.Growl@1bb22d9
       +id: brandpanel
       type: org.primefaces.component.panel.Panel@ed0cd7
        +id: j_idt10
         type: javax.faces.component.html.HtmlPanelGrid@e60409
          +id: j_idt11
           type: org.primefaces.component.outputlabel.OutputLabel@11325cd
          +id: branchname
           type: org.primefaces.component.selectonemenu.SelectOneMenu@16e471
            +id: j_idt12
             type: javax.faces.component.UISelectItem@efdaaa
            +id: j_idt13
             type: javax.faces.component.UISelectItems@fcd37b
          +id: j_idt14
           type: org.primefaces.component.outputlabel.OutputLabel@a04e7e
          +id: brandname
           type: org.primefaces.component.selectonemenu.SelectOneMenu@814915
            +id: j_idt15
             type: javax.faces.component.UISelectItem@1e52afd
            +id: j_idt16
             type: javax.faces.component.UISelectItems@697520
          +id: j_idt17
           type: org.primefaces.component.outputlabel.OutputLabel@1888b29
          +id: j_idt18
           type: org.primefaces.component.inputtext.InputText@1686d07
        +id: j_idt19
         type: javax.faces.component.html.HtmlPanelGrid@ce1366
          +id: j_idt20
           type: org.primefaces.component.commandbutton.CommandButton@15b920e
          +id: j_idt21
           type: org.primefaces.component.commandbutton.CommandButton@d1de09
          +id: j_idt22
           type: org.primefaces.component.commandbutton.CommandButton@482a86
       +id: categorypanel
       type: org.primefaces.component.panel.Panel@1dfcbc3
        +id: j_idt23
         type: javax.faces.component.html.HtmlPanelGrid@1baa99d
          +id: j_idt24
           type: org.primefaces.component.outputlabel.OutputLabel@1d590a3
          +id: categorybranchname
           type: org.primefaces.component.selectonemenu.SelectOneMenu@afcd9
            +id: j_idt25
             type: javax.faces.component.UISelectItem@15e0b9b
            +id: j_idt26
             type: javax.faces.component.UISelectItems@14bfd33
          +id: j_idt27
           type: org.primefaces.component.outputlabel.OutputLabel@1dc4c0b
          +id: categoryfloorname
           type: org.primefaces.component.selectonemenu.SelectOneMenu@485e7
            +id: j_idt28
             type: javax.faces.component.UISelectItem@f326a7
            +id: j_idt29
             type: javax.faces.component.UISelectItems@16ed6d9
        +id: j_idt30
         type: javax.faces.component.html.HtmlPanelGrid@1db4fa7
          +id: j_idt31
           type: org.primefaces.component.outputlabel.OutputLabel@14a8a00
          +id: categoryname
           type: org.primefaces.component.selectonemenu.SelectOneMenu@aa4749
            +id: j_idt32
             type: javax.faces.component.UISelectItem@12e467c
            +id: j_idt33
             type: javax.faces.component.UISelectItems@11589f6
          +id: j_idt34
           type: org.primefaces.component.outputlabel.OutputLabel@1147608
          +id: j_idt35
           type: org.primefaces.component.inputtext.InputText@511e57
        +id: j_idt36
         type: javax.faces.component.html.HtmlPanelGrid@19eef40
          +id: j_idt37
           type: org.primefaces.component.outputlabel.OutputLabel@16d756e
          +id: subcategoryname
           type: org.primefaces.component.selectonemenu.SelectOneMenu@138c603
            +id: j_idt38
             type: javax.faces.component.UISelectItem@50093a
            +id: j_idt39
             type: javax.faces.component.UISelectItems@8dea14
          +id: j_idt40
           type: org.primefaces.component.outputlabel.OutputLabel@102f163
          +id: j_idt41
           type: org.primefaces.component.inputtext.InputText@35cd5d
        +id: j_idt42
         type: javax.faces.component.html.HtmlPanelGrid@3dc0e2
          +id: j_idt43
           type: org.primefaces.component.commandbutton.CommandButton@4269de
        +id: categorytree
         type: org.primefaces.component.treetable.TreeTable@349f31
          +id: j_idt44
           type: 
                            Categories

          +id: col1 <===============
           type: org.primefaces.component.column.Column@eb38b5
            +id: out1
             type: javax.faces.component.html.HtmlOutputLabel@d802ee
          +id: col2
           type: org.primefaces.component.column.Column@1a88afb
            +id: com1
             type: org.primefaces.component.commandlink.CommandLink@3c7600
          +id: col3
           type: org.primefaces.component.column.Column@1671af2
            +id: com2
             type: org.primefaces.component.commandlink.CommandLink@1a2769
          +id: col1 <===============
           type: org.primefaces.component.column.Column@bf5e96
            +id: j_idt45
             type: 
                                Category Name

            +id: out1
             type: javax.faces.component.html.HtmlOutputLabel@2e2067
          +id: col2
           type: org.primefaces.component.column.Column@51703d
            +id: j_idt46
             type: 
                               Biên tập

            +id: com1
             type: org.primefaces.component.commandlink.CommandLink@9fc24a
          +id: col3
           type: org.primefaces.component.column.Column@8cb5ba
            +id: j_idt47
             type: 
                               Delete

            +id: com2
             type: org.primefaces.component.commandlink.CommandLink@1eef7db
      +id: dialog
       type: org.primefaces.component.dialog.Dialog@1d26686
        +id: documentPanel
         type: org.primefaces.component.outputpanel.OutputPanel@491682
          +id: j_idt48
           type: javax.faces.component.html.HtmlPanelGrid@64db02
            +id: j_idt49
             type: javax.faces.component.html.HtmlOutputLabel@1667f48
            +id: basic
             type: org.primefaces.component.inplace.Inplace@2e50af
              +id: name
               type: javax.faces.component.html.HtmlInputText@b34ab2
            +id: j_idt50
             type: javax.faces.component.html.HtmlPanelGrid@ed25ec
              +id: j_idt51
               type: org.primefaces.component.commandbutton.CommandButton@154ae8e
              +id: btnclear
               type: org.primefaces.component.commandbutton.CommandButton@90196c
      +id: footer
      type: org.primefaces.component.layout.LayoutUnit@753f4a
      +id: j_idt52
     type: org.primefaces.component.outputlabel.OutputLabel@18e3248
   +id: j_idt53
     type: 
     

   Dec 12, 2013 5:27:01 PM com.sun.faces.application.view.FaceletViewHandlingStrategy handleRenderException
      SEVERE: Error Rendering View[/product/productmanage.xhtml]
      java.lang.IllegalStateException: Component ID productform:categorytree:col1 has already been found in the view.  
at com.sun.faces.util.Util.checkIdUniqueness(Util.java:974)
at com.sun.faces.util.Util.checkIdUniqueness(Util.java:958)
at com.sun.faces.util.Util.checkIdUniqueness(Util.java:958)
at com.sun.faces.util.Util.checkIdUniqueness(Util.java:958)
at com.sun.faces.util.Util.checkIdUniqueness(Util.java:958)
at com.sun.faces.util.Util.checkIdUniqueness(Util.java:958)
at com.sun.faces.util.Util.checkIdUniqueness(Util.java:958)
at com.sun.faces.application.view.FaceletFullStateManagementStrategy.saveView(FaceletFullStateManagementStrategy.java:706)
at com.sun.faces.application.StateManagerImpl.saveView(StateManagerImpl.java:89)
at javax.faces.application.StateManager.getViewState(StateManager.java:593)
at com.sun.faces.context.PartialViewContextImpl.renderState(PartialViewContextImpl.java:454)
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:322)
at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:57)
at javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1896)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:425)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
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:647)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2430)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2419)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)

1 Câu trả lời

我解决了这个错误。我不知道为什么 Jsf 需要在 bean 的构造函数中初始化所有的树节点。我用空字符串值初始化了所有树节点，然后一切正常。它适用于 Session/View Scoped bean。

更新:1由于不正确的 ajax 更新，也可能会发生此错误。我试图从每个组件发出 ajax 请求并更新整个面板(面板内的组件)。然后我将更新更改为仅更新特定 View ，例如。选择一个菜单。这里的解决方案是仅更新特定组件而不更新整个表单或 View 。

更新:2我在 web.xml 文件中将 param-value 从 false 更改为 true，然后这个问题就解决了，


    javax.faces.PARTIAL_STATE_SAVING
    true

关于java - 在 View 中发现重复的组件 ID，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20543070/

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