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vue请求springboot接口下载zip文件

news 来源：原创 2024/9/20 2:44:54

说明

其实只需要按照普通文件流下载即可，以下是一个例子，仅供参考。

springboot接口

@RestController
@RequestMapping("/api/files")
public class FileController {@GetMapping("/download")public ResponseEntity<Resource> downloadFile() throws IOException {// Assume the ZIP file is located in the resources folderFile file = new File("src/main/resources/sample.zip");InputStreamResource resource = new InputStreamResource(new FileInputStream(file));return ResponseEntity.ok().header(HttpHeaders.CONTENT_DISPOSITION, "attachment;filename=sample.zip").contentType(MediaType.APPLICATION_OCTET_STREAM).contentLength(file.length()).body(resource);}
}

或者是采用传统

@GetMapping(value = "/download")public void exportTasks(HttpServletResponse response) throws IOException {try {String filePath = "d:/tmp/aaa.zip";File file = new File(filePath);if (!file.exists()) {throw new FileNotFoundException("File not found: " + filePath);}String fileName = FilenameUtils.getName(filePath);// 对中文文件名进行编码String zipFileName = URLEncoder.encode(fileName, CharsetUtil.UTF_8);response.setHeader("Content-disposition", "attachment; filename=" + URLEncoder.encode(zipFileName, "utf-8"));response.setContentType("application/octet-stream;charset=UTF-8");try (InputStream inputStream = new FileInputStream(file);OutputStream outputStream = response.getOutputStream()) {byte[] buffer = new byte[4096];int bytesRead;while ((bytesRead = inputStream.read(buffer)) != -1) {outputStream.write(buffer, 0, bytesRead);}outputStream.flush();}} catch (Exception e) {log.error("下载出错", e);}}

vue调用

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Download ZIP Example</title>
</head>
<body><div id="app"><button @click="downloadZip">Download ZIP</button></div><!-- 引入 Vue --><script src="https://cdn.jsdelivr.net/npm/vue@2"></script><!-- 引入 Axios --><script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script><script>new Vue({el: '#app',methods: {async downloadZip() {try {const response = await axios.get('http://localhost:8080/api/files/download', {responseType: 'blob', // 处理二进制数据});const url = window.URL.createObjectURL(new Blob([response.data]));const link = document.createElement('a');link.href = url;link.setAttribute('download', 'sample.zip'); // 下载的文件名document.body.appendChild(link);link.click();link.remove();} catch (error) {console.error('Error downloading the file:', error);}}}});</script>
</body>
</html>