Selenium Grid：无法通过浏览器客户端访问 Hub url/控制台

Question

我按照以下步骤启动 selenium 集线器。启动 selenium 网格集线器

1. hub.json 文件：

   {
   "port": 4441,
   "newSessionWaitTimeout": -1,
   "custom": {},
   "capabilityMatcher":"org.openqa.grid.internal.utils.DefaultCapabilityMatcher",
   "throwOnCapabilityNotPresent": true,
   "cleanUpCycle": 5000,
   "role": "hub",
   "debug": false,
   "browserTimeout": 0,
   "timeout": 1800
    }
   

2. 我发射了命令：

   java -Dwebdriver.chrome.driver=E:\SELENIUM_DOWNLOADS\Drivers\chromedriver.exe -jar E:\SELENIUM_DOWNLOADS\Jars\selenium-server-standalone-3.11.0.jar -role hub -hubConfig hub.json
   

3. 结果：

   E:\>cd \selenium_practice\Maven_Workspace\DataDriven_zoho_18April2019_GRID
   E:\selenium_practice\Maven_Workspace\DataDriven_zoho_18April2019_GRID>java -Dwebdriver.chrome.driver=E:\SELENIUM_DOWNLOADS\Drivers\chromedriver.exe -jar E:\SELENIUM_DOWNLOADS\Jars\selenium-server-standalone-3.11.0.jar -role hub -hubConfig hub.json
   00:40:48.652 INFO [GridLauncherV3.launch] - Selenium build info: version: '3.11.0', revision: 'e59cfb3'
   00:40:48.652 INFO [GridLauncherV3$2.launch] - Launching Selenium Grid hub on port 4441
   2018-04-22 00:40:49.166:INFO::main: Logging initialized @1081ms to org.seleniumhq.jetty9.util.log.StdErrLog
   00:40:49.572 INFO [Hub.start] - Selenium Grid hub is up and running 
   00:40:49.572 INFO [Hub.start] - Nodes should register to http://192.168.1.10:4441/grid/register/
   00:40:49.572 INFO [Hub.start] - Clients should connect to http://192.168.1.10:4441/wd/hub
   

4. 当我进入浏览器http://192.168.1.10:4441/grid/register/

   HTTP ERROR 500
   Problem accessing /grid/register. Reason:
   Server Error
   Caused by: java.lang.IllegalStateException: Not a JSON Object: null
   

Answer 1

在通过自定义配置启动 Selenium Grid Hub 时，您需要考虑以下几点：

• 您的 hub.json 文件看起来非常完美。

• 在启动 Selenium Grid Hub 时，您可以删除参数 -Dwebdriver，如下所示：

  java -jar E:\SELENIUM_DOWNLOADS\Jars\selenium-server-standalone-3.11.0.jar -role hub -hubConfig hub.json
  

• 您需要通过 url 访问 Selenium Grid Hub 控制台：

  http://localhost:4441/grid/console
  

• 查看配置需要访问url：

  http://localhost:4441/grid/console?config=true&configDebug=true
  

• 根据您的 hub.json 文件的 Selenium Grid Hub 控制台 配置快照：