如何在vue中,将压缩的pk文件下载成xlsx文件
时间: 2023-06-04 22:03:52 浏览: 205
.netcore+vue 实现压缩文件下载功能.docx
首先,需要使用js-xlsx包将压缩的pk文件解压缩为数组或对象格式。然后,使用FileSaver.js包将解压缩的数据转换为xlsx文件并下载。具体步骤如下:
1. 安装js-xlsx和FileSaver.js包:
```
npm install xlsx
npm install file-saver
```
2. 导入包:
```
import XLSX from 'xlsx';
import FileSaver from 'file-saver';
```
3. 解压缩pk文件:
```
const response = await axios.get(url, { responseType: 'arraybuffer' });
const zip = await JSZip.loadAsync(response.data);
const files = zip.file(/.+\.(json)$/); // 匹配json文件
const data = []
for (let i = 0; i < files.length; i++) {
const file = files[i];
const obj = JSON.parse(await file.async('string'));
data.push(obj);
}
```
4. 将解压缩的数据转换为workbook格式:
```
const sheetName = "Sheet1";
const worksheet = XLSX.utils.json_to_sheet(data, { header: ["column1", "column2", ...] });
const workbook = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(workbook, worksheet, sheetName);
```
5. 下载xlsx文件:
```
const fileName = "example.xlsx";
const fileType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
const fileBlob = new Blob([s2ab(XLSX.write(workbook, { bookType: "xlsx", type: "binary" }))], { type: fileType });
FileSaver.saveAs(fileBlob, fileName);
```
其中的s2ab函数用于将二进制串转换为ArrayBuffer格式:
```
function s2ab(s) {
const buf = new ArrayBuffer(s.length);
const view = new Uint8Array(buf);
for (let i = 0; i < s.length; i++) {
view[i] = s.charCodeAt(i) & 0xFF;
}
return buf;
}
```
阅读全文