方法一
要将PDF或Word转换为HTML并保留原有样式,可以使用pdfjs-dist和mammoth.js这两个库。首先需要安装这两个库:
bash
npm install pdfjs-dist mammoth.js
然后在Vue项目中使用这两个库进行转换:
bash
import * as pdfjsLib from 'pdfjs-dist';
import { convertToHtml } from 'mammoth';
export default {
methods: {
async convertFileToHtml(file) {
const fileType = file.type.split('/')[1];
const fileExtension = fileType === 'pdf' ? '.pdf' : '.docx';
// 将文件转换为Blob对象
const fileReader = new FileReader();
fileReader.onload = (event) => {
const arrayBuffer = event.target.result;
const byteArray = new Uint8Array(arrayBuffer);
const blob = new Blob([byteArray], { type: fileType + fileExtension });
if (fileType === 'pdf') {
// 使用pdfjsLib将PDF转换为HTML
const pdfData = await pdfjsLib.getDocument(blob).promise;
const pageNumber = 1;
const scale = 1;
const viewport = pageNumber * scale;
const canvas = document.createElement('canvas');
const context = canvas.getContext('2d');
canvas.width = pdfData.internal.pageSize.getWidth() * scale;
canvas.height = pdfData.internal.pageSize.getHeight() * scale;
const renderContext = {
canvasContext: context,
viewport: viewport,
};
const renderTask = pdfData.getPage(pageNumber).render(renderContext);
await renderTask.promise;
const base64Image = canvas.toDataURL('image/png');
// 将base64Image转换为HTML
const htmlContent = `<img src="${base64Image}" />`;
return htmlContent;
} else if (fileType === 'docx') {
// 使用mammoth将Word转换为HTML
const htmlContent = await convertToHtml(blob, { format: 'html' });
return htmlContent;
}
};
fileReader.readAsArrayBuffer(blob);
},
},
};
在Vue模板中使用这个方法:
bash
<template>
<div>
<input type="file" @change="handleFileChange" />
</div>
</template>
<script>
import convertFileToHtml from '@/utils/convertFileToHtml';
export default {
methods: {
...convertFileToHtml(),
},
};
</script>
方法二
要实现在Vue中复制Word文档并还原样式,可以使用mammoth.js库将Word文档转换为HTML,然后使用html-to-paper库将HTML内容呈现为可打印的PDF。以下是实现此功能的步骤:
1.安装依赖库:
bash
npm install mammoth html-to-paper
2.在Vue组件中引入依赖库:
bash
import * as mammoth from 'mammoth';
import htmlToPaper from 'html-to-paper';
3.创建一个方法来处理Word文档的上传和预览:
bash
methods: {
async handleWordUpload(event) {
const file = event.target.files[0];
if (!file) {
return;
}
// 将Word文档转换为HTML
const result = await mammoth.convertToHtml({ arrayBuffer: file });
const htmlContent = result.value;
// 将HTML内容呈现为可打印的PDF
const printElement = document.createElement('div');
printElement.innerHTML = htmlContent;
htmlToPaper(printElement);
},
},
4.在Vue模板中添加一个文件输入框和预览按钮:
bash
<template>
<div>
<input type="file" @change="handleWordUpload" />
<button>预览</button>
</div>
</template>