Question

我正在尝试使用jsPDF将div值下载到PDF中这里是我编写的代码：

<html>
  <head>
    <script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
    <script src="//code.jquery.com/jquery-migrate-1.2.1.min.js"></script>
    <script src="jsPDF.js"></script>
    <script>
    $(function () {
      var doc = new jsPDF();
      var specialElementHandlers = {
        '#editor': function (element, renderer) {
          return true;
        }   
      };

      $('#cmd').click(function () {
        doc.fromHTML($('#content').html(), 15, 15, {
          'width': 170,
          'elementHandlers': specialElementHandlers
        });
        doc.save('sample-file.pdf');
      });
    });
    </script>
  </head>
  <body>
    <div id="content">
      <h3>Hello, this is a H3 tag</h3>
      <p>a pararaph</p>
    </div>
    <div id="editor"></div>
    <button id="cmd">generate PDF</button>
  </body>
</html>

但是点击按钮时没有发生任何事情...我已经从this link下载了jsPDF。

我无能为力，请有人帮助我。

Answer 1

从https://github.com/MrRio/jsPDF/tree/master/dist

中选择jspdf.min.js

然后这应该有效：

....
<script src="jspdf.min.js"></script>
<script>
$(function () {

  $('#cmd').click(function () {
    var doc = new jsPDF();
    doc.addHTML($('#content')[0], 15, 15, {
      'background': '#fff',
    }, function() {
      doc.save('sample-file.pdf');
    });
  });
});
</script>
....

Answer 2

var http = require('http');
// var data = require('fs').readFileSync(__dirname + '/index.html', 'utf8');

http.createServer(function (req, res) {

  if (req.url === '/') {

    res.writeHead(200, {"content-type": "text/html"});
    var html = require('fs').createReadStream(__dirname + '/index.html');
    html.on('data', function (chunk) {
      res.write(chunk);
    })
  }
  else if (req.url === '/api') {

    var obj = {
      firstname: 'John',
      lastname: 'Smith'
    };
    res.writeHead(200, {"content-type": "application/json"});
    res.write(JSON.stringify(obj));
  }
  else {

    res.writeHead(404, {"content-type": "text/plain"});
    res.write("Error 404: Page not found.");
    res.end();
  }


}).listen(1337, "127.0.0.1");

console.log('Server listening on port 1337');

这是一个HTML工作我测试了很多次。并使用相同的代码。

<script type="text/javascript" src="http://code.jquery.com/jquery-1.6.2.js"></script>
      <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.14/jquery-ui.js"></script>
      <script type="text/javascript" src="http://mrrio.github.io/jsPDF/dist/jspdf.debug.js"></script>
      <script type="text/javascript" src="http://html2canvas.hertzen.com/build/html2canvas.js"></script>
  <script type='text/javascript'>//<![CDATA[
$(window).load(function(){
$(document).ready(function() {
    $('#download').click(function() {       
        html2canvas($("#canvas"), {
            onrendered: function(canvas) {         
                var imgData = canvas.toDataURL('image/png'); 
                $("#imgRes").attr("src", imgData);             
                var doc = new jsPDF('p', 'mm');
                doc.addImage(imgData, 'PNG', 10, 10);
                doc.save('sample-file.pdf');
            }
        });
    });
});
});//]]> 
</script>

使用jsPDF </div>将html <div>下载到pdf中

2 个答案: