Primefaces数据表动态对象[]

Question

I want to create a dynamic Primefaces datatable from the result of an sql query that gives me a List<Object[]> as result. The corresponding column names are stored in a List<String> .

The columns and the length of the Object[] field should be dynamic.

How to deal with the List<Object[]> in the Datatable?

Answer 1

Use <p:columns> . See also PrimeFaces <p:dataTable> showcase - dymamic columns .

Provided that you actually mean that you've the data in a List<Object[]> and the columnNames in the same order in List<String> , then this should do:

<p:dataTable value="#{bean.data}" var="item">
    <p:columns value="#{bean.columnNames}" var="columnName" columnIndexVar="i">
        <f:facet name="header">#{columnName}</f:facet>
        #{item[i]}
    </p:columns>
</p:dataTable>