下载 npm i html2canvas jspdf --save
创建一个插件
import html2Canvas from "html2canvas";
import JsPDF from "jspdf"
export default {
install(Vue, options) {
Vue.prototype.htmlToPdf = (id, title) => {
const elementId = document.getElementById(`${id}`)
const opts = {
scale: 12,
useCORS: true,
allowTaint: false,
tainttest: true,
logging: true,
};
html2Canvas(elementId, opts).then((canvas) => {
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(title + ".pdf");
})
.catch((error) => {
console.log("打印失败", error);
});
}
}
}
挂载到main.js
import htmlToPdf from "./utils/printpdf";
Vue.use(htmlToPdf);
使用
methods: {
handlePdf() {
document.body.scrollTop = 0;
document.documentElement.scrollTop = 0;
this.htmlToPdf("pdfDom", "统计报告");
},
}