在javascript中将html导出为pdf

我过去常常从HTML创建PDF

结果：正在生成没有路径的地图 以下是我所拥有的：

html2canvas(document.getElementById('pdf-canvas'), {
      onrendered: function (canvas) {
          var data = canvas.toDataURL("image/png");
          var docDefinition = {
              content: [{
                  image: data,
                  width: 500,
              }]
          };
          pdfMake.createPdf(docDefinition).download("Score_Details.pdf");
      }
  });

然后我用

结果：它正在生成没有贴图的路径 这是我的

1)fabric 

var canvas = new fabric.StaticCanvas( undefined, {
    width: 500,
    height: 500,
} );
 var svgEl = document.body.getElementsByTagName('svg')[0];
 var serializer = new XMLSerializer();
 var svgStr = serializer.serializeToString(svgEl);
 var path = fabric.loadSVGFromString(svgStr,function(objects, options) {      
   var obj = fabric.util.groupSVGElements(objects, options);
   canvas.add(obj).renderAll();      
   var data = canvas.toDataURL();       
   var docDefinition = {
       content: [{
           image: data,
           width: 500,
       }]
   };
   pdfMake.createPdf(docDefinition).download("Score_Details.pdf");
 });

2)canvg

var svgImage = document.body.getElementsByTagName('svg')[0];
var serializer = new XMLSerializer();
var str = serializer.serializeToString(svgImage);   
var $canvas = $('<canvas/>');
$canvas.attr('width', '150px;')
$canvas.attr('height', '150px;')
$canvas.appendTo('body');
canvg($canvas.get(0), str);


html2canvas($canvas, {
  onrendered: function (canvas) {
    var a = document.createElement('a');
    a= canvas.toDataURL();
    var docDefinition = {
      content: [{
          image: a,
          width: 500,
      }]
  };
  pdfMake.createPdf(docDefinition).download("Score_Details.pdf");
  $canvas.remove(); //removes canvas from body
  }
});

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我是否必须使用另一个库，或者我是否错过了使用html2canvas、canvg和fabric的一些功能？

我找到了一个用于导出到PDF文件的库，您可以试试

J'ai testéjsPDF我要去参加一次旅行 voici-le代码

html2canvas(document.getElementById("pdf-canvas"), {
  onrendered: function(canvas) {

      var imgData = canvas.toDataURL('image/png');
      console.log('Report Image URL: '+imgData);
      var doc = new jsPDF('p', 'mm', [297, 210]); //210mm wide and 297mm high

      doc.addImage(imgData, 'PNG', 10, 10);
      doc.save('sample.pdf');
  }
});

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你应该用英语问你的问题：我试过这个库，但这个解决方案不能解决我的问题。未生成路径