Data Tables download xls/csv file not working properly

问题

I want to have 3 buttons - to download csv, xls and pdf file. In my case when I click on the download csv file button, it saves with extension of csv file, but when I open it it is excel - it's not comma separated file. PDF download button is working correctly. xls button does not work - it's not clickable at all. I tried to write this code:

"TableTools": {
     "aButtons": [ {
          "sExtends":    "download",
          "sButtonText": "Download XLS",
          "sUrl":        "/generate_xls.php"
      }]
 }

But then each button download excel file.

Here's my code:

<html>
<head>
<link rel="stylesheet" href="//cdn.datatables.net/1.10.5/css/jquery.dataTables.min.css" type="text/css"  />

<script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
<script src="//cdn.datatables.net/1.10.5/js/jquery.dataTables.min.js"></script>
<script src="https://www.datatables.net/release-datatables/media/js/jquery.js"></script>
<script src="https://www.datatables.net/release-datatables/media/js/jquery.dataTables.js"></script>
<script src="https://www.datatables.net/release-datatables/extensions/TableTools/js/dataTables.tableTools.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/zeroclipboard/2.2.0/ZeroClipboard.Core.min.js"></script>
<link rel="stylesheet" 
href="https://www.datatables.net/release-datatables/media/css/jquery.dataTables.css" type="text/css" />
<script>
$(document).ready(function() {
    $('#example').dataTable( {
        "pagingType": "full_numbers",
         "bSort": true,
         "sDom": 'T<"clear">lfrtip',
	     "tableTools": {
	    "sSwfPath": "http://cdn.datatables.net/tabletools/2.2.2/swf/copy_csv_xls_pdf.swf",
    
		aButtons: [
    { sExtends: "csv",
      sFileName: 'download.csv',
      sFieldSeperator: "," 
    },
    { sExtends: "xls",
      sFileName: 'download.xls'
    },
    { sExtends: "pdf",
      sFileName: 'download.pdf'
    }   
] 
	}


    } );
} );
</script>

<script>
$(document).ready(function() {
    // Setup - add a text input to each footer cell
    $('#example tfoot th').each( function () {
        var title = $('#example thead th').eq( $(this).index() ).text();
        $(this).html( '<input type="text" placeholder="Търси '+title+'" />' );
    } );
 
    // DataTable
    var table = $('#example').DataTable();
 
    // Apply the search
    table.columns().eq( 0 ).each( function ( colIdx ) {
        $( 'input', table.column( colIdx ).footer() ).on( 'keyup change', function () {
            table
                .column( colIdx )
                .search( this.value )
                .draw();
        } );
    } );
} );
</script>
<script>

</script>
</head>
<body>
<div class='col-md-8' id='student_results'>
<br/><br/>

<table  id='example'>
 <thead>
  	<tr><th>Потребител</th><th>Училище</th><th>Клас</th><th>Анкета</th><th>Въпрос</th><th>Отговор</th></tr>
  </thead>  
  <tfoot>
            <tr>
                <th>Потребител</th>
                <th>Училище</th>
                <th>Клас</th>
                <th>Анкета</th>
                <th>Въпрос</th>
                <th>Отговор</th>
            </tr>
        </tfoot> 
  <tbody>

<?php 

foreach ($student_results as $row)
{

?>
	<tr><td>
	<?php echo $row->username; ?>
	</td><td>
	<?php echo $row->school; ?>
	</td><td>
	<?php echo $row->class; ?>
	</td><td>
	<?php echo $row->survey_id; ?>
  	</td><td>
  	<?php echo $row->question_id; ?>
  	</td><td>
  	<?php echo $row->answer; ?>
  	</td></tr>
  	<?php 
 }
 ?>
	
	</table>

	<table border='1' id='example'>
	<tr><th>Въпрос</th><th>Среден резултат</th></tr>
<?php
foreach ($average_results as $row)
{
?>  	
  	<td>
  	<?php echo $row->question_id ; ?>
  	</td><td>
  	<?php echo round("$row->answer",2); ?>
  	</td></tr>
  	<?php
}
?>
</tbody>
	</table>



	</div>
	</body>
	</html>

回答1:

You need to target all desired buttons, when you are using this approach. Just having a "xls" breaks it all up.

aButtons: [
    { sExtends: "csv",
      sFileName: 'download.csv',
      sFieldSeperator: "," //<--- example of how to set the delimiter
    },
    { sExtends: "xls",
      sFileName: 'download.xls'
    },
    { sExtends: "pdf",
      sFileName: 'download.pdf'
    }   
]

来源：https://stackoverflow.com/questions/29386972/data-tables-download-xls-csv-file-not-working-properly

标签

csv

download

jquery-datatables

xls

tabletools