Webdriver的新会话请求应包含位置标头或带有会话ID的'application / json; charset = UTF-8'响应正文

问题描述

我正在尝试使用网格运行Selenium Java测试。我的集线器在aws Windows实例中，而节点是我的本地计算机。我可以使用wifi连接上的端口转发将本地系统连接到AWS实例VM。但是在运行Java脚本时出现错误

使用的HUB命令：

java -jar selenium-server-standalone-3.14.0.jar -role hub -port 80

节点连接命令：

java -Dwebdriver.chrome.driver="chromedriver.exe" -jar selenium-server-standalone-3.14.0.jar -role node -hub http://3.21.32.100:80/grid/register -remoteHost http://asagta-62417.portmap.io:62417 -port 4596

TestNg测试

public class TestClass
{
   WebDriver driver;
   String baseURL,nodeURL;
@BeforeTest
public void setUp() throws MalformedURLException {
         System.setProperty("webdriver.chrome.driver","jars/chromedriver.exe");
         baseURL = "http://demo.guru99.com/test/guru99home/";
         nodeURL = "http://3.21.32.100:80/wd/hub";
         ChromeOptions options = new ChromeOptions();
         DesiredCapabilities capabilities = DesiredCapabilities.chrome(); 
         driver = new RemoteWebDriver(nodeURL,capabilities);
     }
     @AfterTest
     public void afterTest() {
         driver.quit();
     }
     @Test
     public void sampleTest() {
         driver.get(baseURL);
          if (driver.getPageSource().contains("MOBILE TESTING")) {
             Assert.assertTrue(true,"Mobile Testing Link Found");
         } 
          else {
             Assert.assertTrue(false,"Failed: Link not found");
         }
     }
}

Stacktrace：

org.openqa.selenium.WebDriverException: Error forwarding the new session new session request for webdriver should contain a location header or an 'application/json;charset=UTF-8' response body with the session ID.
Command duration or timeout: 46.30 seconds
Build info: version: '3.14.0',revision: 'aacccce0',time: '2018-08-02T20:13:22.693Z'
System info: host: 'EC2AMAZ-BPUIVPF',ip: '172.31.43.132',os.name: 'Windows Server 2019',os.arch: 'amd64',os.version: '10.0',java.version: '1.8.0_261'
Driver info: driver.version: RemoteWebDriver
    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$0(JsonWireProtocolResponse.java:53)
    at org.openqa.selenium.remote.JsonWireProtocolResponse.lambda$getResponseFunction$2(JsonWireProtocolResponse.java:91)
    at org.openqa.selenium.remote.ProtocolHandshake.lambda$createSession$0(ProtocolHandshake.java:122)
    at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
    at java.util.Spliterators$ArraySpliterator.tryAdvance(Unknown Source)
    at java.util.stream.ReferencePipeline.forEachWithCancel(Unknown Source)
    at java.util.stream.AbstractPipeline.copyIntoWithCancel(Unknown Source)
    at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
    at java.util.stream.FindOps$FindOp.evaluateSequential(Unknown Source)
    at java.util.stream.AbstractPipeline.evaluate(Unknown Source)
    at java.util.stream.ReferencePipeline.findFirst(Unknown Source)
    at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:125)
    at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:73)
    at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:136)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:548)
    at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:212)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:130)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:143)
    at batool.TestClass.setUp(TestClass.java:23)
Caused by: org.openqa.grid.common.exception.GridException: Error forwarding the new session new session request for webdriver should contain a location header or an 'application/json;charset=UTF-8' response body with the session ID.
    at org.openqa.grid.web.servlet.handler.RequestHandler.process(RequestHandler.java:118)
    at org.openqa.grid.web.servlet.DriverServlet.process(DriverServlet.java:85)
    at org.openqa.grid.web.servlet.DriverServlet.doPost(DriverServlet.java:69)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
    at org.seleniumhq.jetty9.servlet.ServletHolder.handle(ServletHolder.java:860)
    at org.seleniumhq.jetty9.servlet.ServletHandler.doHandle(ServletHandler.java:535)
    at org.seleniumhq.jetty9.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
    at org.seleniumhq.jetty9.security.SecurityHandler.handle(SecurityHandler.java:548)
    at org.seleniumhq.jetty9.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.seleniumhq.jetty9.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
    at org.seleniumhq.jetty9.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
    at org.seleniumhq.jetty9.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
    at org.seleniumhq.jetty9.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
    at org.seleniumhq.jetty9.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
    at org.seleniumhq.jetty9.servlet.ServletHandler.doScope(ServletHandler.java:473)
    at org.seleniumhq.jetty9.server.session.SessionHandler.doScope(SessionHandler.java:1564)
    at org.seleniumhq.jetty9.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
    at org.seleniumhq.jetty9.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
    at org.seleniumhq.jetty9.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
    at org.seleniumhq.jetty9.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.seleniumhq.jetty9.server.Server.handle(Server.java:530)
    at org.seleniumhq.jetty9.server.HttpChannel.handle(HttpChannel.java:347)
    at org.seleniumhq.jetty9.server.HttpConnection.onFillable(HttpConnection.java:256)
    at org.seleniumhq.jetty9.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
    at org.seleniumhq.jetty9.io.FillInterest.fillable(FillInterest.java:102)
    at org.seleniumhq.jetty9.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
    at org.seleniumhq.jetty9.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)
    at org.seleniumhq.jetty9.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
    at org.seleniumhq.jetty9.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
    at org.seleniumhq.jetty9.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382)
    at org.seleniumhq.jetty9.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
    at org.seleniumhq.jetty9.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
    at java.lang.Thread.run(Unknown Source)

解决方法

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