首先我们在导出之前我们需要用到两个库
//第一个：将页面html转换成图片
npm install --save html2canvas
//第二个:将图片生成pdf
npm install jspdf --save
其次我们需要自己封装一个导出的一个方法
这边我不过多介绍，我已经放到了gitee上，文章结尾我会附上我的gitee地址
main。js引入，不知道为什么现在简书没法放图片
import htmlToPdf from '@/utils/htmlToPdf'
Vue.use(htmlToPdf)
算了没法引入图片 我直接放gitee地址了
https://gitee.com/liujianqiu1/html-to-pdf.git
附封装方法：
import html2Canvas from "html2canvas";
import JsPDF from "jspdf";
import { Loading } from "element-ui"; //此处根据你实际使用的框架的loading进行引入
let loading;
export default {
install(Vue, options) {
Vue.prototype.getPdf1 = function(pdfTitle) {
loading = Loading.service({
lock: true,
text: "正在下载pdf...",
background: "rgba(0,500,200,.5)"
});
html2Canvas(document.querySelector("#pdfDom"), {
allowTaint: true,
useCORS: true
}).then(function(canvas) {
loading.close();
let contentWidth = canvas.width;
let contentHeight = canvas.height;
let pageHeight = (contentWidth / 592.28) * 841.89;
let leftHeight = contentHeight;
let position = 0;
let imgWidth = 595.28;
let imgHeight = (592.28 / contentWidth) * contentHeight;
let pageData = canvas.toDataURL("image/jpeg", 1.0);
let PDF = new JsPDF("", "pt", "a4");
if (leftHeight < pageHeight) {
PDF.addImage(pageData, "JPEG", 0, 0, imgWidth, imgHeight);
} else {
while (leftHeight > 0) {
PDF.addImage(pageData, "JPEG", 0, position, imgWidth, imgHeight);
leftHeight -= pageHeight;
position -= 841.89;
if (leftHeight > 0) {
PDF.addPage();
}
}
}
PDF.save(pdfTitle + ".pdf");
});
};
}
};
