标签：ace value eal meta att tps system director download
1.文件下载后端代码
/** * 初始化下载页面 * * @return */ @RequestMapping(value = "/initDownloadPage", method = RequestMethod.GET) public String initDownloadPage(Model model) { File file = new File("D:/File");
// 获取文件列表 if (file.exists() && file.isDirectory()) { String[] files = file.list(); if (files.length > 0) { model.addAttribute("fileList", files); } else { System.out.print("空！"); } } else { System.out.print("路径不存在！"); } return "download"; } /** * 文件下载 * * @param fileName * @param response * @throws Exception */ @RequestMapping(value = "/downloadFile", method = RequestMethod.GET) public void downloadFile(@RequestParam("fileName") String fileName, HttpServletResponse response) throws Exception { // 如果文件名不为空，则进行下载 if (fileName != null) { //设置文件路径 String realPath = "D:/File/"; File file = new File(realPath, fileName); // 如果文件名存在，则进行下载 if (file.exists()) { // 配置响应头 response.setHeader("content-type", "application/octet-stream"); response.setContentType("application/octet-stream"); // 设置文件名 response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8")); // 实现文件下载 byte[] buffer = new byte[1024]; FileInputStream fis = null; BufferedInputStream bis = null; try { fis = new FileInputStream(file); bis = new BufferedInputStream(fis); OutputStream os = response.getOutputStream(); int i = bis.read(buffer); while (i != -1) { os.write(buffer, 0, i); i = bis.read(buffer); } } catch (Exception e) { e.printStackTrace(); } finally { try { if (bis != null) { bis.close(); } if (fis != null) { fis.close(); } } catch (Exception e) { e.printStackTrace(); } } } } }
2.文件下载前端代码
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="../static/jquery-3.4.1.js"></script>
<script>
function download(e) {
var data =$(e).prev().text();
window.location.href = "/file/downloadFile?fileName="+data;
}
</script>
</head>
<body>
<p th:each="file:${fileList}">
<a th:text="${file}" href="#"></a>
<input type="button" value="下载" onclick="download(this)">
</p>
</body>
</html>
3.文件下载功能测试
4.下载成功。
标签：ace value eal meta att tps system director download
原文地址：https://www.cnblogs.com/lightbc/p/12001504.html
