【发布时间】：2018-09-21 02:31:55
【问题描述】：
我正在尝试学习 selenium webdriver，但遇到了问题。
我做了一个非常小的测试，看起来像这样：
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
public class Flows {
public static void main(String[] args) {
System.setProperty("webdriver.chrome.driver", "/Users/mn/Downloads/belikewater/chromedriver");
WebDriver driver = new ChromeDriver();
String baseUrl = "http://anywhere.c3a.dk/";
driver.get(baseUrl);
System.out.println(driver.getTitle());
driver.close();
}
}
我正在使用 gradle，它看起来像这样：
group 'com.cetrea'
version '1.0-SNAPSHOT'
apply plugin: 'java'
group = 'com.cetrea'
version = '1.0.0'
sourceCompatibility = 1.8
repositories {
mavenCentral()
}
dependencies {
compile('org.seleniumhq.selenium:selenium-java:2.41.0')
testCompile group: 'junit', name: 'junit', version: '4.12'
}
jar {
manifest{
attributes 'Main-Class': 'com.cetrea.flowtesting.Flows'
}
}
我在
中遇到了异常"main" java.lang.NoClassDefFoundError: org/openqa/selenium/WebDriver
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
at java.lang.Class.getMethod0(Class.java:3018)
at java.lang.Class.getMethod(Class.java:1784)
at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526)
Caused by: java.lang.ClassNotFoundException: org.openqa.selenium.WebDriver
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 7 more
我使用的是 Mac OS，并尝试过 brew install chromedriver，但我找不到它的路径，因为我对 mac 也很陌生，所以我下载了一个 zip 并将可执行的 chromedriver 复制到我的项目中。
也不记得如何获取完整的堆栈跟踪..
** 我一定是搞砸了什么。用右键单击流运行它，然后按运行 flow.main() 给了我另一个错误，所以至少它找到了它现在需要的东西。但是我收到以下错误。
Starting ChromeDriver (v2.8.241036) on port 47434
[warn] kq_init: detected broken kqueue; not using.: Undefined error: 0
May 07, 2018 11:39:22 AM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: OSS
Exception in thread "main" org.openqa.selenium.WebDriverException: java.net.ConnectException: Failed to connect to localhost/0:0:0:0:0:0:0:1:47434
Build info: version: '3.11.0', revision: 'e59cfb3', time: '2018-03-11T20:26:55.152Z'
System info: host: 'cetreas-MacBook-Pro.local', ip: 'fe80:0:0:0:c9e:2c67:1d27:4e0b%en0', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.13.3', java.version: '1.8.0_161'
Driver info: driver.version: RemoteWebDriver
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:92)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:545)
at org.openqa.selenium.remote.RemoteWebDriver.get(RemoteWebDriver.java:273)
at com.cetrea.flows.Flows.main(Flows.java:15)
Caused by: java.net.ConnectException: Failed to connect to localhost/0:0:0:0:0:0:0:1:47434
at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:240)
at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:158)
at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:256)
at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:134)
at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:113)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:125)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200)
at okhttp3.RealCall.execute(RealCall.java:77)
at org.openqa.selenium.remote.internal.OkHttpClient.execute(OkHttpClient.java:101)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:155)
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:83)
... 3 more
Caused by: java.net.ConnectException: Connection refused (Connection refused)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at okhttp3.internal.platform.Platform.connectSocket(Platform.java:125)
at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:238)
... 23 more
会不会是防火墙之类的东西阻止了它？这是我借了半年的mac，所以我还没有完全习惯它。
【问题讨论】：
标签： java macos selenium selenium-webdriver classnotfoundexception