@GetMapping("/download")
 public void download(HttpServletResponse response) {
         return this.downloadFile(response);
    }
public void downloadFile(HttpServletResponse response, InputStream inputStream, String fileName, String contentType) {
        try (BufferedOutputStream out = new BufferedOutputStream(response.getOutputStream())) {
            //通知瀏覽器以附件形式下載
            response.setHeader("Content-Disposition", String.format("attachment; filename=\"%s\"", fileName));
            //文件輸出格式
            response.setContentType(contentType);
            byte[] car = new byte[1024];
            int len;
            while ((len = inputStream.read(car)) != -1) {
                out.write(car, 0, len);
            }
        } catch (IOException e) {
            log.error("Method:downloadFile,ErrorMsg:{}", e.getMessage());
        }
    }

// 1.設(shè)置驅(qū)動(dòng)路徑（驅(qū)動(dòng)在 target 文件夾中）
System.setProperty("webdriver.chrome.driver", this.getClass().getResource("/").getPath() + "drivers/chromedriver.exe");

// 2.新的下載地址為桌面（可以弄成某個(gè)文件夾路徑而不要直接弄成死的靜態(tài)路徑）
String downloadPath = "C:\\Users\\XXX\\Desktop";

// 3.HashMap 中保存下載地址信息
HashMap<String, Object> hashMap = new HashMap<>();
hashMap.put("download.default_directory", downloadPath);

// 4.ChromeOptions 中設(shè)置下載路徑信息，需要傳入保存有下載路徑的 HashMap
ChromeOptions chromeOptions = new ChromeOptions();
chromeOptions.setExperimentalOption("prefs", hashMap);

// 依據(jù) ChromeOptions 來產(chǎn)生 DesiredCapbilities，這時(shí) DesiredCapbilities 就也具備了下載路徑的信息了
DesiredCapabilities desiredCapabilities = new DesiredCapabilities();
desiredCapabilities.setCapability(ChromeOptions.CAPABILITY, chromeOptions);

// 5.依據(jù) ChromeOptions 產(chǎn)生驅(qū)動(dòng)，此時(shí)的 driver 已經(jīng)具備了新的下載路徑的
WebDriver driver = new ChromeDriver(desiredCapabilities );