java 多文件zip压缩包下载导出
1.根据自身需求修改
代码如下(示例):
@GetMapping("/downloadZip")
public void downloadJyzByIdZip(String certificateTemplateId, HttpServletResponse response) {
List<FileVo> voList = new ArrayList<>();
//文件
System.out.println(voList);
//对图片进行压缩
//判断list中有多少图片
System.out.println(voList);
if (voList != null && voList.size() > 0) {
/*批量下载*/
try {
String downloadFilename = "";
String NowTimeString = String.valueOf(System.currentTimeMillis());
downloadFilename = "报名.zip";//压缩包文件的名称
downloadFilename = URLEncoder.encode(downloadFilename, "UTF-8");//转换中文否则可能会产生乱码
response.setContentType("application/octet-stream");// 指明response的返回对象是文件流
response.setHeader("Content-disposition", "attachment;filename=" + downloadFilename);// 设置在下载框默认显示的文件名
ZipOutputStream zos = new ZipOutputStream(response.getoutputStream());
FileInputStream ips = null;
File file = new File("");
String url = "";
byte[] buffer = new byte[1024];
int r = 0;
for (int i = 0; i < voList.size(); i++) {
if (voList.get(i) != null) {
zos.putNextEntry(new ZipEntry(voList.get(i).getUserName()+voList.get(i).getPhone()+ ".jpg"));
url = voList.get(i).getFileUrl();
//获取图片存放路径
file = new File(url);
if (file.exists()) {
ips = new FileInputStream(file);
response.setContentType("multipart/form-data");
while ((r = ips.read(buffer)) != -1) {
zos.write(buffer, 0, r);
}
if (null != ips) {
ips.close();
}
} else {
System.out.println("为空");
}
}
}
zos.flush();
zos.close();
} catch (Exception e) {
e.printstacktrace();
}
}
//删除当前文件夹中所有文件
//File basefile = new File("/usr/share/study/mbZip/"); //path为给定的文件夹地址
//remove(basefile);
}
/**
* 删除指定文件夹下的全部内容
* @param file
*/
public static void remove(File file) {
File[] files = file.listFiles();//将file子目录及子文件放进文件数组
if (files != null) {//如果包含文件进行删除操作
for (int i = 0; i < files.length; i++) {
if (files[i].isFile()) {//删除子文件
files[i].delete();
} else if (files[i].isDirectory()) {//通过递归方法删除子目录的文件
remove(files[i]);
}
files[i].delete();//删除子目录
}
}
}
}
@Setter
@Getter
class FileVo {
private String fileUrl;
private String Phone;
private String userName;
}