jQuery 如何正确使用jsPDF库
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How to properly use jsPDF library
提问by Daniela costina Vaduva
I want to convert some of my divs into PDF and I've tried jsPDF library but with no success. It seems I can't understand what I need to import to make the library work. I've been through the examples and I still can't figure it out. I've tried the following:
我想将我的一些 div 转换为 PDF，我尝试过 jsPDF 库但没有成功。似乎我无法理解我需要导入什么才能使库工作。我已经完成了这些例子，但我仍然无法弄清楚。我尝试了以下方法：
<script type="text/javascript" src="js/jspdf.min.js"></script>
After jQuery and:
在 jQuery 之后：
$("#html2pdf").on('click', function(){
var doc = new jsPDF();
doc.fromHTML($('body').get(0), 15, 15, {
'width': 170
});
console.log(doc);
});
for testing purposes but I receive:
用于测试目的，但我收到：
"Cannot read property '#smdadminbar' of undefined"
where #smdadminbaris the first div from the body.
#smdadminbar身体的第一个 div在哪里。
回答by Well Wisher
you can use pdf from html as follows,
您可以使用 html 中的 pdf，如下所示，
Step 1: Add the following script to the header
第 1 步：将以下脚本添加到标题中
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.3.2/jspdf.min.js"></script>
Step 2: Add HTML script to execute jsPDF code
第二步：添加HTML脚本执行jsPDF代码
Customize this to pass the identifier or just change #content to be the identifier you need.
自定义它以传递标识符或只是将 #content 更改为您需要的标识符。
<script>
function demoFromHTML() {
var pdf = new jsPDF('p', 'pt', 'letter');
// source can be HTML-formatted string, or a reference
// to an actual DOM element from which the text will be scraped.
source = $('#content')[0];
// we support special element handlers. Register them with jQuery-style
// ID selector for either ID or node name. ("#iAmID", "div", "span" etc.)
// There is no support for any other type of selectors
// (class, of compound) at this time.
specialElementHandlers = {
// element with id of "bypass" - jQuery style selector
'#bypassme': function (element, renderer) {
// true = "handled elsewhere, bypass text extraction"
return true
}
};
margins = {
top: 80,
bottom: 60,
left: 40,
width: 522
};
// all coords and widths are in jsPDF instance's declared units
// 'inches' in this case
pdf.fromHTML(
source, // HTML string or DOM elem ref.
margins.left, // x coord
margins.top, { // y coord
'width': margins.width, // max width of content on PDF
'elementHandlers': specialElementHandlers
},
function (dispose) {
// dispose: object with X, Y of the last line add to the PDF
// this allow the insertion of new lines after html
pdf.save('Test.pdf');
}, margins
);
}
</script>
Step 3: Add your body content
第 3 步：添加您的正文内容
<a href="javascript:demoFromHTML()" class="button">Run Code</a>
<div id="content">
<h1>
We support special element handlers. Register them with jQuery-style.
</h1>
</div>
Refer to the original tutorial
参考原教程
See a working fiddle
看到一个工作小提琴
回答by user890332
You only need this link jspdf.min.js
你只需要这个链接jspdf.min.js
It has everything in it.
它拥有一切。
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.3.2/jspdf.min.js"></script>
回答by pimbrouwers
This is finally what did it for me (and triggers a disposition):
这终于为我做了什么（并触发了处置）：
function onClick() {
var pdf = new jsPDF('p', 'pt', 'letter');
pdf.canvas.height = 72 * 11;
pdf.canvas.width = 72 * 8.5;
pdf.fromHTML(document.body);
pdf.save('test.pdf');
};
var element = document.getElementById("clickbind");
element.addEventListener("click", onClick);<h1>Dsdas</h1>
<a id="clickbind" href="#">Click</a>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.3.3/jspdf.min.js"></script>And for those of the KnockoutJS inclination, a little binding:
对于那些喜欢 KnockoutJS 的人，有点绑定：
ko.bindingHandlers.generatePDF = {
init: function(element) {
function onClick() {
var pdf = new jsPDF('p', 'pt', 'letter');
pdf.canvas.height = 72 * 11;
pdf.canvas.width = 72 * 8.5;
pdf.fromHTML(document.body);
pdf.save('test.pdf');
};
element.addEventListener("click", onClick);
}
};
回答by Akshay Tyagi
first, you have to create a handler.
首先，您必须创建一个处理程序。
var specialElementHandlers = {
'#editor': function(element, renderer){
return true;
}
};
then write this code in click event:
然后在点击事件中编写此代码：
doc.fromHTML($('body').get(0), 15, 15, {
'width': 170,
'elementHandlers': specialElementHandlers
});
var pdfOutput = doc.output();
console.log(">>>"+pdfOutput );
assuming you've already declared doc variable. And Then you have save this pdf file using File-Plugin.
假设您已经声明了 doc 变量。然后你已经使用 File-Plugin 保存了这个 pdf 文件。
回答by Pedro Almeida
Shouldn't you also be using the jspdf.plugin.from_html.js library? Besides the main library (jspdf.js), you must use other libraries for "special operations" (like jspdf.plugin.addimage.js for using images). Check https://github.com/MrRio/jsPDF.
您不应该也使用 jspdf.plugin.from_html.js 库吗？除了主库（jspdf.js），您必须使用其他库进行“特殊操作”（如使用图像的jspdf.plugin.addimage.js）。检查https://github.com/MrRio/jsPDF。
回答by Vitalii Chmovzh
According to the latest version (1.5.3) there is no fromHTML()method anymore.
Instead you should utilize jsPDF HTML plugin, see: https://rawgit.com/MrRio/jsPDF/master/docs/module-html.html#~html
根据最新版本（1.5.3），没有fromHTML()方法了。相反，您应该使用 jsPDF HTML 插件，请参阅：https://rawgit.com/MrRio/jsPDF/master/docs/module-html.html#~html
You also need to add html2canvas library in order for it to work properly: https://github.com/niklasvh/html2canvas
您还需要添加 html2canvas 库以使其正常工作：https: //github.com/niklasvh/html2canvas
JS(from API docs):
JS（来自 API 文档）：
var doc = new jsPDF();
doc.html(document.body, {
callback: function (doc) {
doc.save();
}
});
You can provide HTML string instead of reference to the DOM element as well.
您也可以提供 HTML 字符串而不是对 DOM 元素的引用。
回答by Antwnina
how about in vuejs how is it applicable?
在 vuejs 中如何适用？
function onClick() {
var pdf = new jsPDF('p', 'pt', 'letter');
pdf.canvas.height = 72 * 11;
pdf.canvas.width = 72 * 8.5;
pdf.fromHTML(document.body);
pdf.save('test.pdf');
};
var element = document.getElementById("clickbind");
element.addEventListener("click", onClick);<h1>Dsdas</h1>
<a id="clickbind" href="#">Click</a>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.3.3/jspdf.min.js"></script>