即使能够从 cmd 从 "adb devices" 获取 udid，Appium Server 也无法检测到已连接的设备
Appium Server not detect connected device even when able to grab the udid from "adb devices" from cmd
我正在根据移动设备的数量设置 AppiumDriver devices/emulators，在每个驱动程序的设置过程中，将为每个创建的驱动程序设置一个 appium 服务器。但是，当创建服务器并将 AppiumDriver 初始化为 Android 或 IOS 时，服务器会生成无法连接到设备的错误，即使它能够毫无问题地检索设备来自 cmd："adb devices"，并打印正确的 udid。有什么我遗漏或忘记包括的东西吗？
详情如下：
代码（我设置了 3 个不同的程序）：
public class BaseTest {
protected AppiumDriver<MobileElement> driver;
protected WebDriverWait wait;
//Change to default mobile Layout classes for anything on the screen
public PageObject pageObject = null;
public AppiumDriverSetup createDrivers = new AppiumDriverSetup();
@BeforeClass(alwaysRun=true)
public void setupDrivers() throws IOException {
createDrivers.makeList();
for(AppiumDriver<MobileElement> driver : createDrivers.getActiveList()){
this.driver = driver;
TLDriverFactory.setTLDriver(driver);
wait = new WebDriverWait(TLDriverFactory.getTLDriver(), 10);
}
}
@Test
public void testActivation() {
assertTrue(driver != null);
pageObject = new PageObject(TLDriverFactory.getTLDriver());
driver.get("www.google.com");
}
public class AppiumDriverSetup {
enum Devices {
ANDROID, IOS;
}
public static int deviceNum = 0;
public AppiumDriver<MobileElement> driver;
private List<Object> newDevice = new ArrayList<Object>();
private static List<AppiumDriver<MobileElement>> activeList = Collections.synchronizedList(new ArrayList<AppiumDriver<MobileElement>>());
AppOrBrowser determinePlatType = new AppOrBrowser();
ActiveAppiumPorts activePorts = new ActiveAppiumPorts();
public void makeList () throws IOException {
Runtime rt = Runtime.getRuntime();
Process p = rt.exec("adb devices");
BufferedReader output = new BufferedReader(new InputStreamReader(p.getInputStream()));
String line ="";
while ((line = output.readLine()) != null) {
if(StringUtils.isEmpty(line) || line.startsWith("List of devices attached")) {
continue;
}
System.out.println(line);
String [] serialNum = line.replace(" ", "").split("device");
newDevice.add(Devices.ANDROID);
newDevice.add(serialNum[0]);
driver = setCaps((Devices)newDevice.get(0), (String)newDevice.get(1));
activeList.add(driver);
}
//Implement the IOS Process
}
private AppiumDriver<MobileElement> setCaps(Devices d, String udid) throws MalformedURLException{
AppiumDriver<MobileElement> driver = null;
DesiredCapabilities cap = new DesiredCapabilities();
String deviceName = "device"+ ++deviceNum;
cap.setCapability(MobileCapabilityType.DEVICE_NAME, deviceName);
if(d == Devices.ANDROID) {
cap.setCapability(MobileCapabilityType.PLATFORM_NAME, "Android");
}
if(d == Devices.IOS) {
cap.setCapability(MobileCapabilityType.PLATFORM_NAME, "IOS");
}
cap.setCapability(MobileCapabilityType.UDID, udid);
cap.setCapability(MobileCapabilityType.NEW_COMMAND_TIMEOUT, "4000");
cap.setCapability("noReset", false);
//Help setup which browser or to run on an app.
cap = determinePlatType.determinePlat(cap);
//Generate AppiumPorts Class and retrieve generated port number.
activePorts.generateServer();
System.out.println("Argument to driver object : " + activePorts.getAppiumURL());
switch (d) {
case ANDROID:
driver = new AndroidDriver<MobileElement>(new URL(activePorts.getAppiumURL()), cap);
break;
case IOS:
driver = new IOSDriver<MobileElement>(new URL(activePorts.getAppiumURL()), cap);
break;
}
return driver;
}
public List<AppiumDriver<MobileElement>> getActiveList(){
return activeList;
}
public void tearDown() {
driver.quit();
}
}
public class ActiveAppiumPorts {
private int portNum = 0;
private String appiumPort = "500" + portNum;
private String serverIp = "127.0.0.1";
public String getAppiumURL() {
String serverURL = "http://" + serverIp + ":" + appiumPort + "/wd/hub";
portNum++;
return serverURL;
}
public void generateServer() {
Runtime runtime = Runtime.getRuntime();
try {
runtime.exec("cmd.exe /c start cmd.exe /k \"appium -a " + serverIp + " -p " + appiumPort +
"--session-override -dc \" {\"\"noReset\"\": \"\"false\"\"}\"\"");
Thread.sleep(10000);
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException r) {
r.printStackTrace();
}
}
public void stopServer() {
Runtime runtime = Runtime.getRuntime();
try {
runtime.exec("taskkill /F /IM node.exe");
runtime.exec("taskkill /F /IM cmd.exe");
} catch (IOException e) {
e.printStackTrace();
}
}
}
Appium 服务器日志：
[Appium] Welcome to Appium v1.8.1
[Appium] Non-default server args:
[Appium] address: 127.0.0.1
[Appium] port: 5000
[Appium] defaultCapabilities: {
[Appium] noReset: false
[Appium] }
[Appium] Default capabilities, which will be added to each request unless overridden by desired capabilities:
[Appium] noReset: false
[Appium] Appium REST http interface listener started on 127.0.0.1:5000
[HTTP] --> POST /wd/hub/session
[HTTP] {"desiredCapabilities":{"browserName":"Chrome","deviceName":"device1","newCommandTimeout":"4000","noReset":false,"platformName":"Android","udid":"192.168.174.102:5555\t"},"capabilities":{"desiredCapabilities":{"browserName":"Chrome","deviceName":"device1","newCommandTimeout":"4000","noReset":false,"platformName":"Android","udid":"192.168.174.102:5555\t"},"firstMatch":[{"browserName":"Chrome","platformName":"android"}]}}
[debug] [MJSONWP] Calling AppiumDriver.createSession() with args: [{"browserName":"Chrome","deviceName":"device1","newCommandTimeout":"4000","noReset":false,"platformName":"Android","udid":"192.168.174.102:5555\t"},null,{"desiredCapabilities":{"browserName":"Chrome","deviceName":"device1","newCommandTimeout":"4000","noReset":false,"platformName":"Android","udid":"192.168.174.102:5555\t"},"firstMatch":[{"browserName":"Chrome","platformName":"android"}]}]
[debug] [BaseDriver] Event 'newSessionRequested' logged at 1534263446888 (09:17:26 GMT-0700 (Pacific Daylight Time))
[BaseDriver] The capabilities ["noReset"] are not standard capabilities and should have an extension prefix
[BaseDriver] Boolean capability passed in as string. Functionality may be compromised.
[Appium] Could not parse W3C capabilities: 'deviceName' can't be blank. Falling back to JSONWP protocol.
[Appium] The following capabilities were provided in the JSONWP desired capabilities that are missing in W3C capabilities: ["noReset","browserName","deviceName","newCommandTimeout","platformName","udid"]. Falling back to JSONWP protocol.
[Appium] Creating new AndroidDriver (v2.7.0) session
[Appium] Capabilities:
[Appium] noReset: false
[Appium] browserName: Chrome
[Appium] deviceName: device1
[Appium] newCommandTimeout: 4000
[Appium] platformName: Android
[Appium] udid: 192.168.174.102:5555
[debug] [BaseDriver] Creating session with MJSONWP desired capabilities: {"noReset":false,"browserNa...
[BaseDriver] Capability 'newCommandTimeout' changed from string ('4000') to integer (4000). This may cause unexpected behavior
[BaseDriver] Session created with session id: 9beb9dd1-e6c3-4fa2-9cd6-7fb55d4a820b
[debug] [AndroidDriver] Getting Java version
[AndroidDriver] Java version is: 1.8.0_171
[AndroidDriver] We're going to run a Chrome-based session
[AndroidDriver] Chrome-type package and activity are com.android.chrome and com.google.android.apps.chrome.Main
[ADB] Checking whether adb is present
[ADB] Found 3 'build-tools' folders under 'C:\Users\<username>\AppData\Local\Android\Sdk' (newest first):
[ADB] C:/Users/<username>/AppData/Local/Android/Sdk/build-tools/28.0.0-rc1
[ADB] C:/Users/<username>/AppData/Local/Android/Sdk/build-tools/27.0.3
[ADB] C:/Users/<username>/AppData/Local/Android/Sdk/build-tools/26.0.2
[ADB] Using adb.exe from C:\Users\<username>\AppData\Local\Android\Sdk\platform-tools\adb.exe
[AndroidDriver] Retrieving device list
[debug] [ADB] Trying to find a connected android device
[debug] [ADB] Getting connected devices...
[debug] [ADB] 2 device(s) connected
[AndroidDriver] Error: Device 192.168.174.102:5555 was not in the list of connected devices
[AndroidDriver] at Object.wrappedLogger.errorAndThrow (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\appium-support\lib\logging.js:78:13)
[AndroidDriver] at Object.callee[=12=][=12=]$ (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\appium-android-driver\lib\android-helpers.js:161:16)
[AndroidDriver] at tryCatch (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:67:40)
[AndroidDriver] at GeneratorFunctionPrototype.invoke [as _invoke] (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:315:22)
[AndroidDriver] at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:100:21)
[AndroidDriver] at GeneratorFunctionPrototype.invoke (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:136:37)
[AndroidDriver] at <anonymous>
[debug] [AndroidDriver] Shutting down Android driver
[debug] [AndroidDriver] Called deleteSession but bootstrap wasn't active
[debug] [BaseDriver] Event 'newSessionStarted' logged at 1534263447383 (09:17:27 GMT-0700 (Pacific Daylight Time))
[MJSONWP] Encountered internal error running command: Error: Device 192.168.174.102:5555 was not in the list of connected devices
[MJSONWP] at Object.wrappedLogger.errorAndThrow (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\appium-support\lib\logging.js:78:13)
[MJSONWP] at Object.callee[=12=][=12=]$ (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\appium-android-driver\lib\android-helpers.js:161:16)
[MJSONWP] at tryCatch (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:67:40)
[MJSONWP] at GeneratorFunctionPrototype.invoke [as _invoke] (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:315:22)
[MJSONWP] at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:100:21)
[MJSONWP] at GeneratorFunctionPrototype.invoke (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:136:37)
[MJSONWP] at <anonymous>
[HTTP] <-- POST /wd/hub/session 500 619 ms - 207
Mvn 日志：
[INFO] Running TestSuite
192.168.174.102:5555 device
chrome
Argument to driver object : http://127.0.0.1:5000/wd/hub
[ERROR] Tests run: 2, Failures: 1, Errors: 0, Skipped: 1, Time elapsed:
12.489 s <<< FAILURE! - in TestSuite
[ERROR] setupDrivers(BaseTest.BaseTest) Time elapsed: 12.373 s <<<
FAILURE!
org.openqa.selenium.WebDriverException:
An unknown server-side error occurred while processing the command.
Original error: Device 192.168.174.102:5555 was not in the list of
connected devices (WARNING: The server did not provide any stacktrace
information)
Command duration or timeout: 718 milliseconds
Build info: version: '3.11.0', revision: 'e59cfb3', time: '2018-03-
11T20:26:55.152Z'
System info: host: 'LAPTOP-L1BFDSGL', ip: '192.168.174.2', os.name:
'Windows 10', os.arch: 'x86', os.version: '10.0', java.version:
'1.8.0_181'
Driver info: driver.version: AndroidDriver
at BaseTest.BaseTest.setupDrivers(BaseTest.java:34)
TestNG 报告：
org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. Original error: Device 192.168.174.102:5555 was not in the list of connected devices (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 718 milliseconds
Build info: version: '3.11.0', revision: 'e59cfb3', time: '2018-03-11T20:26:55.152Z'
System info: host: 'LAPTOP-L1BFDSGL', ip: '192.168.174.2', os.name: 'Windows 10', os.arch: 'x86', os.version: '10.0', java.version: '1.8.0_181'
Driver info: driver.version: AndroidDriver
at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:214)
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:166)
at org.openqa.selenium.remote.JsonWireProtocolResponse.lambda$new[=14=](JsonWireProtocolResponse.java:53)
at org.openqa.selenium.remote.JsonWireProtocolResponse.lambda$getResponseFunction(JsonWireProtocolResponse.java:91)
at org.openqa.selenium.remote.ProtocolHandshake.lambda$createSession[=14=](ProtocolHandshake.java:123)
at java.util.stream.ReferencePipeline.accept(ReferencePipeline.java:193)
at java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958)
at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126)
at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:498)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:464)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:126)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:73)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:136)
at io.appium.java_client.remote.AppiumCommandExecutor.execute(AppiumCommandExecutor.java:129)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:545)
at io.appium.java_client.DefaultGenericMobileDriver.execute(DefaultGenericMobileDriver.java:42)
at io.appium.java_client.AppiumDriver.execute(AppiumDriver.java:1)
at io.appium.java_client.android.AndroidDriver.execute(AndroidDriver.java:1)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:209)
at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:132)
at io.appium.java_client.DefaultGenericMobileDriver.<init>(DefaultGenericMobileDriver.java:38)
at io.appium.java_client.AppiumDriver.<init>(AppiumDriver.java:84)
at io.appium.java_client.AppiumDriver.<init>(AppiumDriver.java:94)
at io.appium.java_client.android.AndroidDriver.<init>(AndroidDriver.java:80)
at AppiumDriverSetUp_Lib.AppiumDriverSetup.setCaps(AppiumDriverSetup.java:87)
at AppiumDriverSetUp_Lib.AppiumDriverSetup.makeList(AppiumDriverSetup.java:57)
at BaseTest.BaseTest.setupDrivers(BaseTest.java:34)
... Removed 34 stack frames
导致该问题的原因是在将 udid 存储在 SerialNum[0] 中时添加的空 space。因此，当 Appium 服务器尝试连接到设备时，额外的 space 会成为阻碍。我使用 trim() 编辑了 udid String 值以删除任何额外的 space:
private AppiumDriver<MobileElement> setCaps(Devices d, String udid) throws MalformedURLException{
AppiumDriver<MobileElement> driver = null;
DesiredCapabilities cap = new DesiredCapabilities();
String deviceName = "device"+ ++deviceNum;
cap.setCapability(MobileCapabilityType.DEVICE_NAME, deviceName);
if(d == Devices.ANDROID) {
cap.setCapability(MobileCapabilityType.PLATFORM_NAME, "Android");
}
if(d == Devices.IOS) {
cap.setCapability(MobileCapabilityType.PLATFORM_NAME, "IOS");
}
cap.setCapability(MobileCapabilityType.UDID, udid.trim());
cap.setCapability(MobileCapabilityType.NEW_COMMAND_TIMEOUT, "4000");
cap.setCapability("noReset", false);
我正在根据移动设备的数量设置 AppiumDriver devices/emulators，在每个驱动程序的设置过程中，将为每个创建的驱动程序设置一个 appium 服务器。但是，当创建服务器并将 AppiumDriver 初始化为 Android 或 IOS 时，服务器会生成无法连接到设备的错误，即使它能够毫无问题地检索设备来自 cmd："adb devices"，并打印正确的 udid。有什么我遗漏或忘记包括的东西吗？
详情如下：
代码（我设置了 3 个不同的程序）：
public class BaseTest {
protected AppiumDriver<MobileElement> driver;
protected WebDriverWait wait;
//Change to default mobile Layout classes for anything on the screen
public PageObject pageObject = null;
public AppiumDriverSetup createDrivers = new AppiumDriverSetup();
@BeforeClass(alwaysRun=true)
public void setupDrivers() throws IOException {
createDrivers.makeList();
for(AppiumDriver<MobileElement> driver : createDrivers.getActiveList()){
this.driver = driver;
TLDriverFactory.setTLDriver(driver);
wait = new WebDriverWait(TLDriverFactory.getTLDriver(), 10);
}
}
@Test
public void testActivation() {
assertTrue(driver != null);
pageObject = new PageObject(TLDriverFactory.getTLDriver());
driver.get("www.google.com");
}
public class AppiumDriverSetup {
enum Devices {
ANDROID, IOS;
}
public static int deviceNum = 0;
public AppiumDriver<MobileElement> driver;
private List<Object> newDevice = new ArrayList<Object>();
private static List<AppiumDriver<MobileElement>> activeList = Collections.synchronizedList(new ArrayList<AppiumDriver<MobileElement>>());
AppOrBrowser determinePlatType = new AppOrBrowser();
ActiveAppiumPorts activePorts = new ActiveAppiumPorts();
public void makeList () throws IOException {
Runtime rt = Runtime.getRuntime();
Process p = rt.exec("adb devices");
BufferedReader output = new BufferedReader(new InputStreamReader(p.getInputStream()));
String line ="";
while ((line = output.readLine()) != null) {
if(StringUtils.isEmpty(line) || line.startsWith("List of devices attached")) {
continue;
}
System.out.println(line);
String [] serialNum = line.replace(" ", "").split("device");
newDevice.add(Devices.ANDROID);
newDevice.add(serialNum[0]);
driver = setCaps((Devices)newDevice.get(0), (String)newDevice.get(1));
activeList.add(driver);
}
//Implement the IOS Process
}
private AppiumDriver<MobileElement> setCaps(Devices d, String udid) throws MalformedURLException{
AppiumDriver<MobileElement> driver = null;
DesiredCapabilities cap = new DesiredCapabilities();
String deviceName = "device"+ ++deviceNum;
cap.setCapability(MobileCapabilityType.DEVICE_NAME, deviceName);
if(d == Devices.ANDROID) {
cap.setCapability(MobileCapabilityType.PLATFORM_NAME, "Android");
}
if(d == Devices.IOS) {
cap.setCapability(MobileCapabilityType.PLATFORM_NAME, "IOS");
}
cap.setCapability(MobileCapabilityType.UDID, udid);
cap.setCapability(MobileCapabilityType.NEW_COMMAND_TIMEOUT, "4000");
cap.setCapability("noReset", false);
//Help setup which browser or to run on an app.
cap = determinePlatType.determinePlat(cap);
//Generate AppiumPorts Class and retrieve generated port number.
activePorts.generateServer();
System.out.println("Argument to driver object : " + activePorts.getAppiumURL());
switch (d) {
case ANDROID:
driver = new AndroidDriver<MobileElement>(new URL(activePorts.getAppiumURL()), cap);
break;
case IOS:
driver = new IOSDriver<MobileElement>(new URL(activePorts.getAppiumURL()), cap);
break;
}
return driver;
}
public List<AppiumDriver<MobileElement>> getActiveList(){
return activeList;
}
public void tearDown() {
driver.quit();
}
}
public class ActiveAppiumPorts {
private int portNum = 0;
private String appiumPort = "500" + portNum;
private String serverIp = "127.0.0.1";
public String getAppiumURL() {
String serverURL = "http://" + serverIp + ":" + appiumPort + "/wd/hub";
portNum++;
return serverURL;
}
public void generateServer() {
Runtime runtime = Runtime.getRuntime();
try {
runtime.exec("cmd.exe /c start cmd.exe /k \"appium -a " + serverIp + " -p " + appiumPort +
"--session-override -dc \" {\"\"noReset\"\": \"\"false\"\"}\"\"");
Thread.sleep(10000);
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException r) {
r.printStackTrace();
}
}
public void stopServer() {
Runtime runtime = Runtime.getRuntime();
try {
runtime.exec("taskkill /F /IM node.exe");
runtime.exec("taskkill /F /IM cmd.exe");
} catch (IOException e) {
e.printStackTrace();
}
}
}
Appium 服务器日志：
[Appium] Welcome to Appium v1.8.1
[Appium] Non-default server args:
[Appium] address: 127.0.0.1
[Appium] port: 5000
[Appium] defaultCapabilities: {
[Appium] noReset: false
[Appium] }
[Appium] Default capabilities, which will be added to each request unless overridden by desired capabilities:
[Appium] noReset: false
[Appium] Appium REST http interface listener started on 127.0.0.1:5000
[HTTP] --> POST /wd/hub/session
[HTTP] {"desiredCapabilities":{"browserName":"Chrome","deviceName":"device1","newCommandTimeout":"4000","noReset":false,"platformName":"Android","udid":"192.168.174.102:5555\t"},"capabilities":{"desiredCapabilities":{"browserName":"Chrome","deviceName":"device1","newCommandTimeout":"4000","noReset":false,"platformName":"Android","udid":"192.168.174.102:5555\t"},"firstMatch":[{"browserName":"Chrome","platformName":"android"}]}}
[debug] [MJSONWP] Calling AppiumDriver.createSession() with args: [{"browserName":"Chrome","deviceName":"device1","newCommandTimeout":"4000","noReset":false,"platformName":"Android","udid":"192.168.174.102:5555\t"},null,{"desiredCapabilities":{"browserName":"Chrome","deviceName":"device1","newCommandTimeout":"4000","noReset":false,"platformName":"Android","udid":"192.168.174.102:5555\t"},"firstMatch":[{"browserName":"Chrome","platformName":"android"}]}]
[debug] [BaseDriver] Event 'newSessionRequested' logged at 1534263446888 (09:17:26 GMT-0700 (Pacific Daylight Time))
[BaseDriver] The capabilities ["noReset"] are not standard capabilities and should have an extension prefix
[BaseDriver] Boolean capability passed in as string. Functionality may be compromised.
[Appium] Could not parse W3C capabilities: 'deviceName' can't be blank. Falling back to JSONWP protocol.
[Appium] The following capabilities were provided in the JSONWP desired capabilities that are missing in W3C capabilities: ["noReset","browserName","deviceName","newCommandTimeout","platformName","udid"]. Falling back to JSONWP protocol.
[Appium] Creating new AndroidDriver (v2.7.0) session
[Appium] Capabilities:
[Appium] noReset: false
[Appium] browserName: Chrome
[Appium] deviceName: device1
[Appium] newCommandTimeout: 4000
[Appium] platformName: Android
[Appium] udid: 192.168.174.102:5555
[debug] [BaseDriver] Creating session with MJSONWP desired capabilities: {"noReset":false,"browserNa...
[BaseDriver] Capability 'newCommandTimeout' changed from string ('4000') to integer (4000). This may cause unexpected behavior
[BaseDriver] Session created with session id: 9beb9dd1-e6c3-4fa2-9cd6-7fb55d4a820b
[debug] [AndroidDriver] Getting Java version
[AndroidDriver] Java version is: 1.8.0_171
[AndroidDriver] We're going to run a Chrome-based session
[AndroidDriver] Chrome-type package and activity are com.android.chrome and com.google.android.apps.chrome.Main
[ADB] Checking whether adb is present
[ADB] Found 3 'build-tools' folders under 'C:\Users\<username>\AppData\Local\Android\Sdk' (newest first):
[ADB] C:/Users/<username>/AppData/Local/Android/Sdk/build-tools/28.0.0-rc1
[ADB] C:/Users/<username>/AppData/Local/Android/Sdk/build-tools/27.0.3
[ADB] C:/Users/<username>/AppData/Local/Android/Sdk/build-tools/26.0.2
[ADB] Using adb.exe from C:\Users\<username>\AppData\Local\Android\Sdk\platform-tools\adb.exe
[AndroidDriver] Retrieving device list
[debug] [ADB] Trying to find a connected android device
[debug] [ADB] Getting connected devices...
[debug] [ADB] 2 device(s) connected
[AndroidDriver] Error: Device 192.168.174.102:5555 was not in the list of connected devices
[AndroidDriver] at Object.wrappedLogger.errorAndThrow (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\appium-support\lib\logging.js:78:13)
[AndroidDriver] at Object.callee[=12=][=12=]$ (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\appium-android-driver\lib\android-helpers.js:161:16)
[AndroidDriver] at tryCatch (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:67:40)
[AndroidDriver] at GeneratorFunctionPrototype.invoke [as _invoke] (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:315:22)
[AndroidDriver] at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:100:21)
[AndroidDriver] at GeneratorFunctionPrototype.invoke (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:136:37)
[AndroidDriver] at <anonymous>
[debug] [AndroidDriver] Shutting down Android driver
[debug] [AndroidDriver] Called deleteSession but bootstrap wasn't active
[debug] [BaseDriver] Event 'newSessionStarted' logged at 1534263447383 (09:17:27 GMT-0700 (Pacific Daylight Time))
[MJSONWP] Encountered internal error running command: Error: Device 192.168.174.102:5555 was not in the list of connected devices
[MJSONWP] at Object.wrappedLogger.errorAndThrow (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\appium-support\lib\logging.js:78:13)
[MJSONWP] at Object.callee[=12=][=12=]$ (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\appium-android-driver\lib\android-helpers.js:161:16)
[MJSONWP] at tryCatch (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:67:40)
[MJSONWP] at GeneratorFunctionPrototype.invoke [as _invoke] (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:315:22)
[MJSONWP] at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:100:21)
[MJSONWP] at GeneratorFunctionPrototype.invoke (C:\Users\<username>\AppData\Roaming\npm\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:136:37)
[MJSONWP] at <anonymous>
[HTTP] <-- POST /wd/hub/session 500 619 ms - 207
Mvn 日志：
[INFO] Running TestSuite
192.168.174.102:5555 device
chrome
Argument to driver object : http://127.0.0.1:5000/wd/hub
[ERROR] Tests run: 2, Failures: 1, Errors: 0, Skipped: 1, Time elapsed:
12.489 s <<< FAILURE! - in TestSuite
[ERROR] setupDrivers(BaseTest.BaseTest) Time elapsed: 12.373 s <<<
FAILURE!
org.openqa.selenium.WebDriverException:
An unknown server-side error occurred while processing the command.
Original error: Device 192.168.174.102:5555 was not in the list of
connected devices (WARNING: The server did not provide any stacktrace
information)
Command duration or timeout: 718 milliseconds
Build info: version: '3.11.0', revision: 'e59cfb3', time: '2018-03-
11T20:26:55.152Z'
System info: host: 'LAPTOP-L1BFDSGL', ip: '192.168.174.2', os.name:
'Windows 10', os.arch: 'x86', os.version: '10.0', java.version:
'1.8.0_181'
Driver info: driver.version: AndroidDriver
at BaseTest.BaseTest.setupDrivers(BaseTest.java:34)
TestNG 报告：
org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. Original error: Device 192.168.174.102:5555 was not in the list of connected devices (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 718 milliseconds
Build info: version: '3.11.0', revision: 'e59cfb3', time: '2018-03-11T20:26:55.152Z'
System info: host: 'LAPTOP-L1BFDSGL', ip: '192.168.174.2', os.name: 'Windows 10', os.arch: 'x86', os.version: '10.0', java.version: '1.8.0_181'
Driver info: driver.version: AndroidDriver
at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:214)
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:166)
at org.openqa.selenium.remote.JsonWireProtocolResponse.lambda$new[=14=](JsonWireProtocolResponse.java:53)
at org.openqa.selenium.remote.JsonWireProtocolResponse.lambda$getResponseFunction(JsonWireProtocolResponse.java:91)
at org.openqa.selenium.remote.ProtocolHandshake.lambda$createSession[=14=](ProtocolHandshake.java:123)
at java.util.stream.ReferencePipeline.accept(ReferencePipeline.java:193)
at java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958)
at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126)
at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:498)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:464)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:126)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:73)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:136)
at io.appium.java_client.remote.AppiumCommandExecutor.execute(AppiumCommandExecutor.java:129)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:545)
at io.appium.java_client.DefaultGenericMobileDriver.execute(DefaultGenericMobileDriver.java:42)
at io.appium.java_client.AppiumDriver.execute(AppiumDriver.java:1)
at io.appium.java_client.android.AndroidDriver.execute(AndroidDriver.java:1)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:209)
at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:132)
at io.appium.java_client.DefaultGenericMobileDriver.<init>(DefaultGenericMobileDriver.java:38)
at io.appium.java_client.AppiumDriver.<init>(AppiumDriver.java:84)
at io.appium.java_client.AppiumDriver.<init>(AppiumDriver.java:94)
at io.appium.java_client.android.AndroidDriver.<init>(AndroidDriver.java:80)
at AppiumDriverSetUp_Lib.AppiumDriverSetup.setCaps(AppiumDriverSetup.java:87)
at AppiumDriverSetUp_Lib.AppiumDriverSetup.makeList(AppiumDriverSetup.java:57)
at BaseTest.BaseTest.setupDrivers(BaseTest.java:34)
... Removed 34 stack frames
导致该问题的原因是在将 udid 存储在 SerialNum[0] 中时添加的空 space。因此，当 Appium 服务器尝试连接到设备时，额外的 space 会成为阻碍。我使用 trim() 编辑了 udid String 值以删除任何额外的 space:
private AppiumDriver<MobileElement> setCaps(Devices d, String udid) throws MalformedURLException{
AppiumDriver<MobileElement> driver = null;
DesiredCapabilities cap = new DesiredCapabilities();
String deviceName = "device"+ ++deviceNum;
cap.setCapability(MobileCapabilityType.DEVICE_NAME, deviceName);
if(d == Devices.ANDROID) {
cap.setCapability(MobileCapabilityType.PLATFORM_NAME, "Android");
}
if(d == Devices.IOS) {
cap.setCapability(MobileCapabilityType.PLATFORM_NAME, "IOS");
}
cap.setCapability(MobileCapabilityType.UDID, udid.trim());
cap.setCapability(MobileCapabilityType.NEW_COMMAND_TIMEOUT, "4000");
cap.setCapability("noReset", false);