org.testng.TestNGException：java.net.SocketException：使用 Selenium 和 TestNG 和 Maven 的服務器錯誤文件意外結束

Question

背景：我目前正在使用 Maven 從遠程倉庫下載 Selenium chrome 驅動程序以執行 TestNG 自動化。 當我在 corporate.network 上時，我收到以下錯誤，每次啟動時似乎都會終止我與服務器的連接。

代碼：

if(browserName.equalsIgnoreCase("chrome") )
{
    ChromeOptions options = new ChromeOptions();
    options.addArguments("--no-proxy-server");
    //options.addArguments("--headless");
    options.addArguments("--window-size=1920,1080");
    options.addArguments("--disable-extensions");
    options.addArguments("--proxy-server='direct://'");
    options.addArguments("--proxy-bypass-list=*");
    options.addArguments("--disable-gpu");
    options.addArguments("--disable-dev-shm-usage");
    options.addArguments("--no-sandbox");
    options.addArguments("--start-maximized");
    options.addArguments("--ignore-certificate-errors");        
    WebDriverManager.chromedriver().setup();
    driver= new ChromeDriver(options);
}

錯誤：

org.testng.TestNGException: java.net.SocketException: Unexpected end of file from server`
at org.testng.TestNG.parseSuite(TestNG.java:327)
at org.testng.TestNG.initializeSuitesAndJarFile(TestNG.java:348)
at org.testng.TestNG.initializeEverything(TestNG.java:995)
at org.testng.TestNG.run(TestNG.java:1009)
at org.apache.maven.surefire.testng.TestNGExecutor.run(TestNGExecutor.java:283)
at org.apache.maven.surefire.testng.TestNGXmlTestSuite.execute(TestNGXmlTestSuite.java:75)
at org.apache.maven.surefire.testng.TestNGProvider.invoke(TestNGProvider.java:120)
at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)`
at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
Caused by: java.net.SocketException: Unexpected end of file from server
at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:866)
at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:863)
at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1615)
at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1520)
at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:250)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:676)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startEntity(XMLEntityManager.java:1398)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startDTDEntity(XMLEntityManager.java:1364)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDTDScannerImpl.setInputSource(XMLDTDScannerImpl.java:257)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.dispatch(XMLDocumentScannerImpl.java:1152)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.next(XMLDocumentScannerImpl.java:1040)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:943)`
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:605)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:112)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:534)
at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:888)
at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:824)
at java.xml/com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1216)
at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:635)
at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:324)
at java.xml/javax.xml.parsers.SAXParser.parse(SAXParser.java:197)
at org.testng.xml.XMLParser.parse(XMLParser.java:38)
at org.testng.xml.SuiteXmlParser.parse(SuiteXmlParser.java:16)
at org.testng.xml.SuiteXmlParser.parse(SuiteXmlParser.java:9)
at org.testng.xml.Parser.parse(Parser.java:152)
at org.testng.xml.Parser.parse(Parser.java:233)
at org.testng.TestNG.parseSuite(TestNG.java:295)
... 10 more

As a work around, I have tried to install both root certificates from the Maven repo directly into my JRE Keystore but the error still perssts. The connection is only resumed when I am off the corporate network, then the driver intiates without issues.

Answer 1

意外的文件結尾意味着遠程服務器接受了連接，但連接在沒有發送響應的情況下關閉。 最可能的原因是遠程系統太忙而無法處理請求，或者存在隨機斷開連接的網絡故障。

但是使用Selenium出現這個錯誤一般是由於以下兩種原因之一：

• 防火牆阻止了ChromeDriver使用的端口
• 防病毒軟件阻止連接

---

解決方案

以下任一步驟應該可以解決您的問題：

• 將ChromeDriver使用的端口列入白名單
• 在您的測試系統上禁用防病毒軟件。