Edit：我已经编辑了Java代码，使其能够生成zip文件，但当通过UI下载时，它似乎不起作用，并出现了下面提到的错误。
我最近做了一个代码，应该使一个文件列表到一个zip文件，并在发送AJAX请求后在浏览器中下载它，但经过几天的尝试，结果仍然是一个zip文件，要么有：

• 试图将文件指针移到文件开头之前 *
• • 或**
• 无法将文件作为[zip]存档打开。不是存档。*

我希望有人能告诉我哪里错了？
下面是代码的ajax：

$.ajax({
                    type: "POST",
                    url: url,
                    contentType: "application/xml",
                    data: xmlString,
                    async: false,
                    success: function(response, status, jqXHR) {
                                var filename = "";
                                var disposition = jqXHR.getResponseHeader("content-disposition");
                                if (disposition && disposition.indexOf("attachment") !== -1) {
                                    var filenameRegex = /filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/;
                                    var matches = filenameRegex.exec(disposition);
                                    if (matches != null && matches[1]) {
                                        filename = matches[1].replace(/['"]/g, "");
                                    }
                                }
                                var blob = new Blob([response], {type: "application/octet-stream"});
                                var link = document.createElement("a");
                                link.href = window.URL.createObjectURL(blob);
                                link.setAttribute("download", filename);
                                document.body.appendChild(link);
                                link.click();
                                link.remove();
                            },
                    error: function(error) {
                    console.log(error);
                    }
});

下面是处理请求的java代码：

File path = new File(fullPath);
if(path.exists() && !path.isDirectory()) { path.delete(); }
      File[] files = path.listFiles((dir, name) -> filesToDownload.contains(name));
if (files.length == 0) {
      throw new IllegalArgumentException("No files in path " + path.getAbsolutePath());
                }
FileOutputStream fos = new FileOutputStream(fullPath+"download.zip");
ZipOutputStream zipOut = new ZipOutputStream(fos);
for (File zipThis : files) {
FileInputStream fis = new FileInputStream(zipThis);
ZipEntry zipEntry = new ZipEntry(zipThis.getName());
zipOut.putNextEntry(zipEntry);
byte[] bytes = new byte[2048];
int length;
while((length = fis.read(bytes)) >= 0) {
zipOut.write(bytes, 0, length);
}
fis.close();
}
zipOut.close();
fos.close();
fileBytes = Files.readAllBytes(Paths.get(fullPath+"download.zip"));
headers.setContentType(MediaType.parseMediaType("application/zip"));
headers.setContentDispositionFormData("attachment", "download.zip");
headers.setContentLength(fileBytes.length);
return new ResponseEntity<>(fileBytes, headers, HttpStatus.OK);

我希望有人能告诉我我做错了什么