unable to display data in datatable of jsf_问答_开发者

unable to display data in datatable of jsf

开发者 https://www.devze.com 2023-02-18 12:48 出处：网络

I\'ve the data(retrieved from database) in a list but when I use `f:view><html> <body> <center>

相关专题：jsf

I've the data(retrieved from database) in a list but when I use

`f:view><html>
    <body>
        <center>
            <h:dataTable id="dt1" value="#{dataList.list}" var="item"  >
                &开发者_StackOverflow中文版lt;h:column>
                    <f:facet name="header">
                        <h:outputText value="Num" />
                    </f:facet>
                    <h:outputText style="" value="#{item.myNum}" ></h:outputText>
                </h:column>

                <h:column>
                    <f:facet name="header">
                        <h:outputText value="Name"/>
                    </f:facet>
                    <h:outputText value="#{item.myName}"></h:outputText>
                </h:column>

                <h:column>
                    <f:facet name="header">
                        <h:outputText value="Country"/>
                    </f:facet>
                    <h:outputText value="#{item.myCountry}"></h:outputText>
                </h:column>

            </h:dataTable><br>

        </center>
    </body></html></f:view>`

it is displaying a blank data table.

It may sound trivial, but you need to add columns:

<h:dataTable id="dt1" value="#{dataList.list}" var="item">
 <h:column>
   <h:outputText value="#{item.myData}">
 </h:column>
 <h:column>
   <h:outputText value="#{item.myOtherData}">
 </h:column>
</h:dataTable>

the myData and myOtherData names must be members of the list element's underlying object.

UPDATE:

Here is a good tutorial for datatables. If you use JSF 2.0 you do not need to register the bean in faces-config.xml. Then you can use annotations.