Appium代码启动服务遇SessionNotCreatedException（404）求助

通过代码启动Appium服务后，抛出org.openqa.selenium.SessionNotCreatedException异常，无法创建新会话，响应码404，提示请求资源未找到或HTTP方法不被支持。使用Android模拟器运行应用，相关信息如下：

报错详情 #

org.openqa.selenium.SessionNotCreatedException: Could not start a new session. Response code 404. Message: The requested resource could not be found, or a request was received using an HTTP method that is not supported by the mapped resource 
Host info: host: 'DESKTOP-SUFA48T', ip: '192.168.0.177'
Build info: version: '4.6.0', revision: '79f1c02ae20'
System info: os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '17.0.8.1'
Driver info: io.appium.java_client.android.AndroidDriver
Command: [null, newSession {capabilities=[{appium:app=C:\Users\HP\Mobile Testing\MobileTestingAppium\src\test\java\resources\ApiDemos-debug.apk, appium:automationName=UiAutomator2, appium:deviceName=Pixel 2 API 28, platformName=ANDROID}], desiredCapabilities=Capabilities {app: C:\Users\HP\Mobile Testing\..., automationName: UiAutomator2, deviceName: Pixel 2 API 28, platformName: ANDROID}}]
Capabilities {}

Android模拟器 #

代码实现 #

@Test
public void config() throws MalformedURLException {

    AppiumDriverLocalService service = new AppiumServiceBuilder()
            .withAppiumJS(
                    new File("C:\\Users\\HP\\AppData\\Roaming\\npm\\node_modules\\appium\\build\\lib\\main.js"))
            .withIPAddress("127.0.0.1").usingPort(4723).withTimeout(Duration.ofSeconds(300)).build();

    service.start();

    // Construct the complete URL with the custom base path
    URL link = new URL("http://127.0.0.1:4723/wd/hub");
    DesiredCapabilities capabilities = new DesiredCapabilities();
    capabilities.setCapability(MobileCapabilityType.DEVICE_NAME, "Pixel 2 API 28");
    capabilities.setCapability(MobileCapabilityType.APP,
            "C:\\Users\\HP\\Mobile Testing\\MobileTestingAppium\\src\\test\\java\\resources\\ApiDemos-debug.apk");
    capabilities.setCapability("automationName", "UiAutomator2"); // for Android

    AndroidDriver driver = new AndroidDriver(link, capabilities);

    driver.quit();

}

• 修正Appium连接URL：Appium 2.x版本已移除默认的/wd/hub路径，手动拼接的URL会导致404错误。建议直接通过service.getUrl()获取服务启动后的有效URL，避免路径错误：

  // 替换手动拼接的URL，使用服务提供的正确地址
  URL link = service.getUrl();
  

• 检查AppiumJS路径正确性：Appium 2.x的main.js路径通常为C:\\Users\\HP\\AppData\\Roaming\\npm\\node_modules\\appium\\lib\\main.js（无build目录），如果路径错误会导致服务启动异常，进而引发404。
• 版本兼容性验证：确保Appium Java Client版本与Appium服务版本匹配，推荐使用8.x及以上版本的Java Client适配Appium 2.x。

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