Jenkins环境下Java Selenium批量上传PDF异常问题求助

问题现象 #

• 本地IDE运行时，下载文件夹可正常获取2个待上传的PDF文件，连续上传无异常
• Jenkins环境中，下载文件夹仅存在第一个PDF文件；单独上传第二个PDF可成功，连续上传则失败

Java代码配置 #

private static void launchChromeDocker() {
    System.setProperty("webdriver.chrome.driver", "/usr/lib/chromium/chromedriver");
    final ChromeOptions chromeOptions = new ChromeOptions();
    chromeOptions.addArguments(
            "lang=fr-FR",
            "--no-sandbox",
            "--disable-dev-shm-usage",
            "--disable-gpu",
            "--disable-web-security",
            "user-data-dir=/profile_pushbullet",
            "load-extension=/profile_pushbullet/Default/Extensions/chlffgpmiacpedhhbkiomidkjlcfhogd/364_0",
            "--remote-allow-origins=*",
            "--ignore-certificate-errors"
    );

    final Map<String, Object> chromePrefs = new HashMap<>();
    chromePrefs.put("profile.exit_type", "Normal");        

        final String parentDirectoryPath = System.getProperty("user.dir");
        final String downloadFilepath = parentDirectoryPath + "/downloads/";
        logger.info("Chrome Download path set to: " + downloadFilepath);
        final File downloadFolder = new File(downloadFilepath);
        if (!downloadFolder.exists()) {
            downloadFolder.mkdir();
        }

    chromePrefs.put("download.default_directory", downloadFilepath);
    chromePrefs.put("download.prompt_for_download", false);       
    
    chromeOptions.setExperimentalOption("prefs", chromePrefs);
    chromeOptions.setAcceptInsecureCerts(true);
    chromeOptions.setPageLoadStrategy(PageLoadStrategy.NORMAL);

    final DesiredCapabilities desiredCapabilities = new DesiredCapabilities();
    desiredCapabilities.setCapability(ChromeOptions.CAPABILITY, chromeOptions);
    
    driver = new ChromeDriver(chromeOptions);
}

Jenkins制品配置 #

Monitoring/**/**/*.html, Monitoring/**/**/screenshots/*.png, loan/*.txt, **/**.pdf

排查方向 #

1. 补充文件下载完成等待逻辑
   连续上传时，Jenkins环境磁盘IO可能比本地慢，第二个PDF可能未完成下载就触发上传。需添加等待判断：

   • 检查文件存在且大小不再变化（避免捕获未下载完成的临时文件）
   • 示例判断代码：

     public static void waitForFileDownload(String filePath, int timeoutSeconds) {
         File file = new File(filePath);
         long lastSize = 0;
         long startTime = System.currentTimeMillis();
         while (System.currentTimeMillis() - startTime < timeoutSeconds * 1000) {
             if (file.exists()) {
                 long currentSize = file.length();
                 if (currentSize == lastSize && currentSize > 0) {
                     break;
                 }
                 lastSize = currentSize;
             }
             try {
                 Thread.sleep(500);
             } catch (InterruptedException e) {
                 Thread.currentThread().interrupt();
             }
         }
     }
     

2. 检查Jenkins工作空间权限

   • 确认Jenkins运行用户对downloads目录有读写权限
   • 可在Jenkins构建步骤中添加ls -l downloads/命令，打印目录内容和权限信息

3. 验证Chrome下载路径一致性

   • Jenkins环境中System.getProperty("user.dir")可能与本地不同，对比控制台输出的下载路径和实际工作空间路径是否一致

4. 排查Chrome配置冲突

   • 临时移除user-data-dir和load-extension参数测试，确认是否是用户配置或扩展影响下载行为

5. 调整Jenkins制品归档时机

   • 确保测试代码完成所有下载操作后，再触发Jenkins的制品归档流程，可添加延迟或等待步骤

内容的提问来源于stack exchange，提问作者Clay_2_treize