Java小白翻身-基于SpringBoot的文件下载系统 3

<ul>
      <li th:each="file:${files}">
          [[${file.getName()}]]
          <a th:href="@{'download?file='+${file.getName()}}">
              打包下载
          </a>
      </li>

  </ul>

@RequestMapping("/download")
@ResponseBody
public void index(String file){
    String targetName = diskpath + File.separator + file;
    //打包到当前目录
    ZipUtil.zip(targetName);
}

@RequestMapping("/download")
@ResponseBody
public void download(String file, HttpServletResponse response) throws UnsupportedEncodingException, FileNotFoundException {
    String targetName = diskpath + File.separator + file;
    //打包到当前目录
    ZipUtil.zip(targetName);
    targetName = targetName+".zip";
    response.setContentType("application/force-download");
    //解决下载文件名中文不显示的问题
    String fileName = new String(file.getBytes("utf-8"),"ISO8859-1");
    response.addHeader("Content-Disposition", "attachment;fileName=" + fileName + ".zip");

    //输出流，下载文件
    byte[] buffer = new byte[1024];
    try {
        FileInputStream fis = new FileInputStream(targetName);
        BufferedInputStream 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 (IOException e) {
        e.printStackTrace();
    }


}

//输出流，下载文件
byte[] buffer = new byte[1024];
try {
    FileInputStream fis = new FileInputStream(targetName);
    BufferedInputStream 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);
    }
    //关闭流
    fis.close();
    os.close();
    boolean del = FileUtil.del(targetName);
    System.out.println(del);
} catch (IOException e) {
    e.printStackTrace();
}