根據primefaces文檔,選擇應該是一個數組。在下面的代碼中,bean.selectedUsers定義爲「HasUsersVO [] selectedUsers」,但datatable的值是List。當我在數據表被填充後點擊確定按鈕時,我會在底部粘貼錯誤。p:datatable,其中selectionMode爲多個
<p:dataTable id="userListTable" value="#{bean.peopleVOList}"
var="user" rowClasses="odd even" selection="#{bean.selectedUsers}" rowKey="#{user.userGuid}"
<p:column selectionMode="multiple" style="width:18px">
</p:column>
.....
.....
</p:dataTable>
錯誤
22:59:16,962 INFO [class com.zreflect.emyed.managedbean.circle.CircleController] (http--127.0.0.1-8080-3) *******************Outside getUsersList********************
22:59:38,943 WARNING [javax.enterprise.resource.webcontainer.jsf.lifecycle] (http--127.0.0.1-8080-3) [Lcom.user.PeopleVO; cannot be cast to java.util.Collection: java.lang.ClassCastException: [Lcom.user.PeopleVO; cannot be cast to java.util.Collection
at org.primefaces.component.datatable.DataTable.getRowData(DataTable.java:835) [primefaces-3.3.1.jar:]
at org.primefaces.component.datatable.DataHelper.decodeMultipleSelection(DataHelper.java:262) [primefaces-3.3.1.jar:]
at org.primefaces.component.datatable.DataHelper.decodeSelection(DataHelper.java:240) [primefaces-3.3.1.jar:]
at org.primefaces.component.datatable.DataTableRenderer.decode(DataTableRenderer.java:72) [primefaces-3.3.1.jar:]
你是否嘗試用列表替換數組進行選擇? – 2012-08-06 05:30:56
@NikitaBeloglazov是的,然後我得到一個不同的錯誤,因爲它不是數組。根據我需要給出數組進行選擇的文檔。 – 2012-08-06 05:51:23
您是否嘗試調試primefaces? – 2012-08-06 07:42:36