Question

我正在尝试编写这个在Android设备中打开apk文件的java类，并使用下面的代码通过appium按下一些按钮：

package new_appium_test;

import io.appium.java_client.android.AndroidDriver;
import io.appium.java_client.remote.MobileCapabilityType;

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.concurrent.TimeUnit;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.remote.DesiredCapabilities;


public class new_appium_test {
    public MobileDriver driver;
    @Before
    public void setUp() throws MalformedURLException, InterruptedException, Exception {
    DesiredCapabilities capabilities = new DesiredCapabilities();
    capabilities.setCapability(MobileCapabilityType.PLATFORM_NAME,"Android");
    capabilities.setCapability(MobileCapabilityType.DEVICE_NAME, "GT-I9300"); //specify your cellphone name
    capabilities.setCapability(MobileCapabilityType.PLATFORM_VERSION,"4.3"); //specify the platform version
    capabilities.setCapability("platformName", "Android");
    capabilities.setCapability("appium-version", "1.2.4.1");
    capabilities.setCapability("appPackage","wizzo.mbc.net");
    capabilities.setCapability("appActivity","wizzo.mbc.net.activities.SplashActivity");
    driver = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);
    }

    driver.manage().timeouts().implicitlyWait(5, TimeUnit.SECONDS);
    }
    @Test
    public void chooseEnglish() throws Exception
    {
    driver.findElement(By.name("English")).click();
    }
    @After
    public void tearDown() throws Exception {
    driver.quit();
    }
}

尽管会出现此故障跟踪：

java.lang.NoSuchFieldError: INSTANCE
    at org.apache.http.conn.ssl.SSLConnectionSocketFactory.<clinit>(SSLConnectionSocketFactory.java:144)
    at org.openqa.selenium.remote.internal.HttpClientFactory.getClientConnectionManager(HttpClientFactory.java:71)
    at org.openqa.selenium.remote.internal.HttpClientFactory.<init>(HttpClientFactory.java:57)
    at org.openqa.selenium.remote.internal.HttpClientFactory.<init>(HttpClientFactory.java:60)
    at org.openqa.selenium.remote.internal.ApacheHttpClient$Factory.getDefaultHttpClientFactory(ApacheHttpClient.java:251)
    at org.openqa.selenium.remote.internal.ApacheHttpClient$Factory.<init>(ApacheHttpClient.java:228)
    at org.openqa.selenium.remote.HttpCommandExecutor.getDefaultClientFactory(HttpCommandExecutor.java:89)
    at org.openqa.selenium.remote.HttpCommandExecutor.<init>(HttpCommandExecutor.java:63)
    at org.openqa.selenium.remote.HttpCommandExecutor.<init>(HttpCommandExecutor.java:58)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:155)
    at io.appium.java_client.DefaultGenericMobileDriver.<init>(DefaultGenericMobileDriver.java:22)
    at io.appium.java_client.AppiumDriver.<init>(AppiumDriver.java:202)
    at io.appium.java_client.android.AndroidDriver.<init>(AndroidDriver.java:50)
    at new_appium_test.new_appium_test.setUp(new_appium_test.java:34)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.junit.internal.runners.BeforeAndAfterRunner.invokeMethod(BeforeAndAfterRunner.java:74)
    at org.junit.internal.runners.BeforeAndAfterRunner.runBefores(BeforeAndAfterRunner.java:50)
    at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:33)
    at org.junit.internal.runners.TestMethodRunner.runMethod(TestMethodRunner.java:75)
    at org.junit.internal.runners.TestMethodRunner.run(TestMethodRunner.java:45)
    at org.junit.internal.runners.TestClassMethodsRunner.invokeTestMethod(TestClassMethodsRunner.java:71)
    at org.junit.internal.runners.TestClassMethodsRunner.run(TestClassMethodsRunner.java:35)
    at org.junit.internal.runners.TestClassRunner$1.runUnprotected(TestClassRunner.java:42)
    at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
    at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

问题出在命令 driver = new AndroidDriver（新网址（“http://127.0.0.1:4723/wd/hub”），功能）; 。谁能告诉我为什么会这样？

Answer 1

如果应用程序试图访问或修改对象的指定字段，并且该对象不再具有该字段，则抛出NoSuchfield异常。如果在Android驱动程序实例化时发生此错误，则可能是您的某些功能可能不正确。没有像appium-version这样的功能 - Link。 Android也会忽略device_name。试试以下功能

 DesiredCapabilities capabilities = new DesiredCapabilities();
    capabilities.setCapability(MobileCapabilityType.AUTOMATION_NAME,
     "Selendroid");
    capabilities.setCapability(MobileCapabilityType.PLATFORM_NAME, "Android");
    capabilities.setCapability(MobileCapabilityType.PLATFORM_VERSION, "4.3");
    capabilities.setCapability(MobileCapabilityType.APP_PACKAGE: "wizzo.mbc.net");
    capabilities.setCapability(MobileCapabilityType.APP_ACTIVITY: "wizzo.mbc.net.activities.SplashActivity");

java.lang.NoSuchFieldError：appium驱动程序varriable抛出了INSTANCE异常

1 个答案: