1
我的JSF頁面中隨機出現重複ID錯誤，並且在所有實例中，重複的ID都是自動生成的ID（如j_id15）。自動生成的JSF組件ID中存在重複的ID
我沒有在頁面中指定的ID的任何重複。這個問題並不一致，我的意思是，頁面視圖可以拋出重複的ID錯誤，並且下一次我發送同一頁面的請求時，它運行得很好，沒有任何錯誤。這不是特定於單個頁面，我在我的項目中有不同的頁面，具有相同的問題。
問題開始從MyFaces的2.0.5升級到2.0.14的MyFaces（最新的2.0.x版本）
這是MyFaces實現中的錯誤後顯示？或者我做錯了什麼？
堆棧跟蹤如下所示：
Caused by: java.lang.IllegalStateException: Client-id : j_id15 is duplicated in the faces tree. Component : posSelectionFrm:posSelSubview_first:posHasAccessTable:j_id15, path: ...[Class: javax.faces.component.UINamingContainer,Id: posSelSubview_first][Class: javax.faces.component.html.HtmlDataTable,Id: posHasAccessTable][Class: javax.faces.component.UIColumn,Id: titleColumn2][Class: com.sun.facelets.compiler.UIInstructions,Id: j_id15]}
at org.apache.myfaces.application.StateManagerImpl.checkForDuplicateIds(StateManagerImpl.java:280)
at org.apache.myfaces.application.StateManagerImpl.checkForDuplicateIds(StateManagerImpl.java:302)
at org.apache.myfaces.application.StateManagerImpl.checkForDuplicateIds(StateManagerImpl.java:302)
at org.apache.myfaces.application.StateManagerImpl.checkForDuplicateIds(StateManagerImpl.java:302)
at org.apache.myfaces.application.StateManagerImpl.checkForDuplicateIds(StateManagerImpl.java:302)
at org.apache.myfaces.application.StateManagerImpl.checkForDuplicateIds(StateManagerImpl.java:302)
at org.apache.myfaces.application.StateManagerImpl.checkForDuplicateIds(StateManagerImpl.java:302)
at org.apache.myfaces.application.StateManagerImpl.checkForDuplicateIds(StateManagerImpl.java:302)
at org.apache.myfaces.application.StateManagerImpl.checkForDuplicateIds(StateManagerImpl.java:302)
at org.apache.myfaces.application.StateManagerImpl.checkForDuplicateIds(StateManagerImpl.java:302)
at org.apache.myfaces.application.StateManagerImpl.saveView(StateManagerImpl.java:220)
at javax.faces.application.StateManager.saveSerializedView(StateManager.java:113)
at javax.faces.application.StateManagerWrapper.saveSerializedView(StateManagerWrapper.java:41)
at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:617)
at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:100)
at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:176)
at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:116)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:239)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:191)
... 71 more
而且，我實現了MyFaces的是不應該重複檢查由默認的自動生成的ID。但是，爲了確保，我在web.xml中定義如下設置：
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Production</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.CHECK_ID_PRODUCTION_MODE</param-name>
<param-value>false</param-value>
</context-param>
但問題仍然存在。
該項目使用運行在Tomcat 6.0上的Apache MyFaces 2.0.14，Facelets 1.1.15，RichFaces 3.3.3.Final。
您最好爲您在頁面中使用的所有組件提供id。 – 2018-02-08 03:21:14