我正在尝试以pdf格式打印表格，其中1列是条形码。 我可以在视图列表中设置条形码，但不能在PDF中设置条形码。
根据我的搜索，我在控制器中设置了2种方法TCPDF或在视图中设置了js ajax。目前，我已经尝试了两种方法，但是无法设置正确的代码以根据需要输出pdf。
方法1控制器中的TCPDF。在视图中，我有一个指向控制器的按钮，用于显示id_cod_obra =？的数据。 this is the view this is the pdf generated but no barcode print
function createPDF(){
if ($this->session->userdata('logged_in')) { // VALIDA USU�RIO LOGADO
$this->load->model('model_perfil');
$resultadoPerfil = $this->model_perfil->buscaPerfil();
$dados ['resultadoPerfil'] = $resultadoPerfil;
$this->load->model('htmltopdf_model');
$this->load->library('pdf');
/////////////////////////////////////
$this->load->library('Pdf');
// $this->pdf->setPaper('A4', 'landscape');
$this->pdf->setPaper('A4', 'portrait');
////////////////////////////////////////
$id_cod_obra = $this->input->get('id_cod_obra');
// $id = $this->uri->segment(2);
$html_content= $this->htmltopdf_model->carregapecasfiltro($id_cod_obra);
//$html_content ['html_content'] = $html_content;
$html_content = '<h3 align="center">Convert HTML to PDF in CodeIgniter using Dompdf MERDA ISTO ESTA A DEMORAR 2</h3>';
$template = array('table_open' => '<table border="1" cellpadding="2" cellspacing="1">');
$this->table->set_template($template);
$this->table->set_heading('ID peça', 'ID obra', 'nome ', 'Nr Subcj', 'mb ', 'ma ', 'Codigo Barrras ');
$this->load->model('model_peca');
// CODE 128 A
//$pdf->Cell(0, 0, 'CODE 128 A', 0, 1);
//$pdf->write1DBarcode('CODE 128 A', 'C128A', '', '', '', 18, 0.4, $style, 'N');
//$pdf->Ln();
//$params = $pdf->serializeTCPDFtagParameters(array('CODE 128', 'C128', '', '', 80, 30, 0.4, array('position'=>'S', 'border'=>true, 'padding'=>4, 'fgcolor'=>array(0,0,0), 'bgcolor'=>array(255,255,255), 'text'=>true, 'font'=>'helvetica', 'fontsize'=>8, 'stretchtext'=>4), 'N'));
//$html .= '<tcpdf method="write1DBarcode" params="'.$sf->codigoean.'" />';
$html_content= $this->htmltopdf_model->carregapecasfiltro($id_cod_obra);
$dados ['html_content'] = $html_content;
foreach($html_content as $s){
// $codigoean=['codigoean'];
//$codigoean=$row['codigoean'];
// $codigoean = $pdf->serializeTCPDFtagParameters(array($codigoean, 'C128', '', '', 80, 30, 0.4, array('position'=>'S', 'border'=>true, 'padding'=>4, 'fgcolor'=>array(0,0,0), 'bgcolor'=>array(255,255,255), 'text'=>true, 'font'=>'helvetica', 'fontsize'=>8, 'stretchtext'=>4), 'N'));
//
;}
//$codigoean = $pdf->serializeTCPDFtagParameters(array($codigoean, 'C128', '', '', 80, 30, 0.4, array('position'=>'S', 'border'=>true, 'padding'=>4, 'fgcolor'=>array(0,0,0), 'bgcolor'=>array(255,255,255), 'text'=>true, 'font'=>'helvetica', 'fontsize'=>8, 'stretchtext'=>4), 'N'));
// var_dump( $this->table->add_row($s->codigoean()) );
// die;
// $html .= '<tcpdf method="write1DBarcode" params="'.$sf->codigoean.'" />'
//$html .= '<tcpdf method="write1DBarcode" params="' . $params . '" />';
//$codigoean = $pdf->serializeTCPDFtagParameters(array('CODE 128C+', 'C128C', '', '', 80, 30, 0.4, array('position' => 'S', 'border' => true, 'padding' => 4, 'fgcolor' => array(0, 0, 0), 'bgcolor' => array(255, 255, 255), 'text' => true, 'font' => 'helvetica', 'fontsize' => 8, 'stretchtext' => 4), 'N'));
foreach ($html_content as $sf):
$this->table->add_row($sf->id, $sf->id_cod_obra, $sf->nome , $sf->qtd, $sf->nr_de_peca, $sf->ma, $barcode );
//
// $this->table->add_row($sf->codigoean );
endforeach;
$html_content = $this->table->generate();
$this->pdf->loadHtml($html_content);
$this->pdf->render();
$this->pdf->stream("".$id_cod_obra.".pdf", array("Attachment"=>1));
// $this->pdf->stream('my.pdf', array("Attachment"=>0));
// $dompdf->stream('my.pdf',array('Attachment'=>0));
}}
This the datatable but unable to put barcodes inside table 结合AJAX JS的2种方法
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/r/dt/jq-2.1.4,jszip-2.5.0,pdfmake-0.1.18,dt-1.10.9,af-2.0.0,b-1.0.3,b-colvis-1.0.3,b-html5-1.0.3,b-print-1.0.3,se-1.0.1/datatables.min.css"/>
<script type="text/javascript" src="https://cdn.datatables.net/r/dt/jq-2.1.4,jszip-2.5.0,pdfmake-0.1.18,dt-1.10.9,af-2.0.0,b-1.0.3,b-colvis-1.0.3,b-html5-1.0.3,b-print-1.0.3,se-1.0.1/datatables.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script src="<?php echo site_url('assets/JsBarcode-3.11.0/dist/JsBarcode.all.js'); ?>"></script>
<script>
function textToBase64Barcode(text){
var canvas = document.createElement("canvas");
JsBarcode(canvas, text, {format: "CODE39"});
return canvas.toDataURL("image/png");
}
</script>
<div class="content-wrapper">
<section class="content-header">
<section class="content-header">
<h1>
Requisição AJAX
</h1>
<ol class="breadcrumb">
<li><a href="#"><i class="fa fa-dashboard"></i> Home</a></li>
<li class="active">Requisiçao AJAX</li>
</ol>
</section>
<div class="box">
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
</head>
<body style="background: #c9c3c3">
<div class="container">
<div class="table justify-content-center">
////////////JUST TO TEST IF BARCODE RENDER IN VIEW "TEST"///////
<svg id="example2"></svg>
<a id="hello">Click Here</a>
<div class="col-10 mb-5">
<div class="card mt-3">
<div class="card-body">
<h5 class="card-title text-center">---------------------------</h5>
<div class="table-responsive">
<table id="example" class="table table-bordered table-striped">
<thead>
<tr>
<th>#</th>
<th>id</th>
<th>obra</th>
<th>nome</th>
<th>qtd</th>
<th>data</th>
<th>Nr CJ</th>
<th>NR Peça</th>
<th>Prep</th>
<th>Doc</th>
<th>Tipo</th>
<th>Desc.</th>
<th>CB</th>
<th>area</th>
<th>peso</th>
<th>Kg MA</th>
<th>status</th>
</tr>
</thead>
<tfoot>
<tr>
</tr>
</tfoot>
<tbody>
<tr>
<?php if(!empty($peca)): ?>
<?php foreach($peca as $pecas):
?>
<tr>
<th><?= $pecas->id?></th>
<th><?= $pecas->id_cod_obra?></th>
<th><?= $pecas->nome?></th>
<th><?= $pecas->qtd?></th>
<th><?= $pecas->data_entrada?></th>
<th><?= $pecas->nr_subconjunto?></th>
<th><?= $pecas->nr_de_peca?></th>
<th><?= $pecas->preparou?></th>
<th><?= $pecas->doc_anexo?></th>
<th><?= $pecas->tipo_doc?></th>
<th><?= $pecas->descricao?></th>
<!-- <th></th> -->
<!-- <th><?//= $pecas->codigoean?></th>
<td><?php// echo $pecas->codigoean;?><svg id="hello"></svg></td>
</th>
<img src="<?php //echo base_url('Barcode/barcode_generator')?>/code128a/15/ ?> <th><?//= $pecas->codigo_barras ?> </th> ;?>/true"/>
</th>
<td>
<img src="<?php// echo base_url('Barcode/barcode_generator')?>/code128a/15/<?php// echo// $pecas->codigoean ;?>/true"/>
</td>-->
<th><?= $pecas->area?></th>
<th><?= $pecas->peso?></th>
<th><?= $pecas->kg_solda?></th>
<th><?= $pecas->status?></th>
</tr>
<?php endforeach ;?>
<?php endif;?>
</tr>
<tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
</div>
</div>
</section>
</div>
<script src="<?php echo site_url('assets/JsBarcode-3.11.0/dist/JsBarcode.all.js'); ?>"></script>
<script type="text/javascript" language="javascript" >
$(document).ready(function(){
$('#example').DataTable({
// Processing indicator
"processing" : true,
// DataTables server-side processing mode
"serverSide" : true,
// Initial no order.
"order": [],
// Load data from an Ajax source
"ajax" : {
"url": "getLists",
type:"POST"
},
dom: 'lBfrtip',
buttons: [
'excel', 'csv', 'pdf', 'copy'
],
"lengthMenu": [ [10, 25, 50, -1], [10, 25, 50, "All"] ],
"aaSorting": [[0, 'desc']],
"aoColumnDefs": [
{"sType": "num-html", "aTargets": [0]}
],
});
});
$("#example2").JsBarcode("TEST");
document.querySelector("#hello").href = textToBase64Barcode("HELLO");
</script>
在1 TCPDF中，我用数字条形码打印表格。 在1中，我还可以在视图中插入带有此代码的条形码列
<img src="<?php echo base_url('Barcode/barcode_generator')?>/code128a/15/<?php echo $pecas->codigoean ;?>/true"/>
在2 AJAX JS中，我用数字条形码打印表格。和所有的作品excell / pdf / copy
仅用于测试的JSBarcode可以正确输出我为“ TEST”放置的条形码
答案 0 :(得分：0)
您必须使用服务器端条形码生成器来处理流文件，例如生成PDF。我建议使用此php-barcode-generator
答案 1 :(得分：0)
简单地使用这个，对我有用。
$obj_pdf->Cell(0, 0, 'CODE 128 C', 0, 1);
$obj_pdf->write1DBarcode('0123456789', 'C128C', '', '', '', 18, 0.4, $style, 'N');
答案 2 :(得分：0)
this is how the print looks like这将允许使用条形码图像打印不是我一直在寻找的解决方案，但至少可以使用
<link href="assets/impecran/style.css" media="screen" rel="stylesheet" type="text/css" />
<script language="javascript">
function Clickheretoprint()
{
var disp_setting="toolbar=yes,location=no,directories=yes,menubar=yes,";
disp_setting+="scrollbars=yes,width=1000, height=500, left=100, top=25";
var content_vlue = document.getElementById("tablecon").innerHTML;
var docprint=window.open("","",disp_setting);
docprint.document.open();
docprint.document.write('</head><body onLoad="self.print()" style="width: 1000px; font-size:11px; font-family:arial; font-weight:normal;">');
docprint.document.write(content_vlue);
docprint.document.close();
docprint.focus();
}
</script>
<section class="content">
<div class="row">
<div class="col-xs-12 col-sm-12 col-lg-12">
<div class="box box-warning">
<?php
if (isset($msg)) {
echo '<div class="box-header with-border">' . $msg . '</div>';
}
// echo anchor('Home/createPDF', 'Generate PDF Report');
?>
<?php
if ((isset($resultadoPeca)) && (!empty($resultadoPeca))) {
foreach ($resultadoPeca as $pecas) { $pecas->id_cod_obra;}} //vai retornar o id_cod_obra n vezes igual por isso escolho o ultimo da lista
?>
<a href="createPDF?id_cod_obra=<?php echo $pecas->id_cod_obra; ?>" class="btn btn-default"><i class="fa fa-plus"></i> PDF</a>
<?php ?>
<tr>
<div class="box">
<!-- <div class="box-header with-border">
<h3 class="box-title">Lista de pecas</h3>
</div>-->
<!-- /.box-header -->
<div class="box-body">
<form role="form" name="formulariopeca" id="formulariopeca" action="alterapeca" method="post" class="form-horizontal">
<input name="idpeca" id="idpeca" type="hidden" value="" readonly="readonly">
</form>
<span id="title">Products Inventory</span><a id="addd" href="javascript:Clickheretoprint()">Print</a>
<div id="tablecon">
<table id="example1" class="table table-bordered table-striped">
<thead>
<tr>
<th>id_cod_obra</th>
<th>nome</th>
<th>qtd</th>
<th>nr_subconjunto</th>
<th>nr_de_peca</th>
<th>descricao</th>
<th>codigoean</th>
<th>Status</th>
<th style="width:1px;"> </th>
</tr>
</thead>
<tbody>
<?php
if ((isset($resultadoPeca)) && (!empty($resultadoPeca))) {
foreach ($resultadoPeca as $pecas) {
?>
<tr>
<td><?php echo $pecas->id_cod_obra; ?></td>
<td><?php echo $pecas->nome; ?></td>
<td><?php echo $pecas->qtd; ?></td>
<td><?php echo $pecas->nr_subconjunto; ?></td>
<td><?php echo $pecas->nr_de_peca; ?></td>
<td><?php echo $pecas->descricao; ?></td>
.........