在我的java代码中，我试图使用HTMLUnit库获取一个网页。我的代码简单如下，
public static void main(String [] args) throws FailingHttpStatusCodeException, MalformedURLException, IOException
{
webClient = new WebClient();
HtmlPage page = webClient.getPage("https://www.xxxxxxx.com/yyyyyy/");
System.out.println(page.getTitleText());
webClient.close();
}
然而，一旦我运行代码，它就会产生以下异常：
Exception class=[net.sourceforge.htmlunit.corejs.javascript.JavaScriptException]
com.gargoylesoftware.htmlunit.ScriptException: SyntaxError: with statements not allowed in strict mode (https://www.wtatennis.com/resources/v2.1.0/scripts/vendors.min.js#1)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:882)
at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:624)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:537)
at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.callSecured(HtmlUnitContextFactory.java:354)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:762)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:738)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:103)
at com.gargoylesoftware.htmlunit.html.HtmlPage.loadExternalJavaScriptFile(HtmlPage.java:1004)
at com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:361)
at com.gargoylesoftware.htmlunit.html.HtmlScript$2.execute(HtmlScript.java:234)
at com.gargoylesoftware.htmlunit.html.HtmlScript.onAllChildrenAddedToPage(HtmlScript.java:256)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.endElement(HtmlUnitNekoDOMBuilder.java:559)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.endElement(HtmlUnitNekoDOMBuilder.java:513)
at net.sourceforge.htmlunit.cyberneko.HTMLTagBalancer.callEndElement(HTMLTagBalancer.java:1192)
at net.sourceforge.htmlunit.cyberneko.HTMLTagBalancer.endElement(HTMLTagBalancer.java:1132)
at net.sourceforge.htmlunit.cyberneko.filters.DefaultFilter.endElement(DefaultFilter.java:219)
at net.sourceforge.htmlunit.cyberneko.filters.NamespaceBinder.endElement(NamespaceBinder.java:312)
at net.sourceforge.htmlunit.cyberneko.HTMLScanner$ContentScanner.scanEndElement(HTMLScanner.java:3185)
at net.sourceforge.htmlunit.cyberneko.HTMLScanner$ContentScanner.scan(HTMLScanner.java:2110)
at net.sourceforge.htmlunit.cyberneko.HTMLScanner.scanDocument(HTMLScanner.java:937)
at net.sourceforge.htmlunit.cyberneko.HTMLConfiguration.parse(HTMLConfiguration.java:443)
at net.sourceforge.htmlunit.cyberneko.HTMLConfiguration.parse(HTMLConfiguration.java:394)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.parse(HtmlUnitNekoDOMBuilder.java:758)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoHtmlParser.parse(HtmlUnitNekoHtmlParser.java:236)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoHtmlParser.parseHtml(HtmlUnitNekoHtmlParser.java:179)
at com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:280)
at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:163)
at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:553)
at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:419)
at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:336)
at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:488)
at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:469)
at htmlunit.WTAHarvester.main(WTAHarvester.java:27)
Caused by: net.sourceforge.htmlunit.corejs.javascript.JavaScriptException: SyntaxError: with statements not allowed in strict mode (https://www.wtatennis.com/resources/v2.1.0/scripts/vendors.min.js#1)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1215)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpret(Interpreter.java:1009)
at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.call(InterpretedFunction.java:111)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.doTopCall(ContextFactory.java:427)
at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.doTopCall(HtmlUnitContextFactory.java:340)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3607)
at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.exec(InterpretedFunction.java:123)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$2.doRun(JavaScriptEngine.java:753)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:867)
... 34 more
JavaScriptException value = SyntaxError: with statements not allowed in strict mode
======= EXCEPTION END ========
Exception in thread "main" ======= EXCEPTION START ========
Exception class=[net.sourceforge.htmlunit.corejs.javascript.JavaScriptException]
com.gargoylesoftware.htmlunit.ScriptException: SyntaxError: with statements not allowed in strict mode (https://www.wtatennis.com/resources/v2.1.0/scripts/vendors.min.js#1)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:882)
at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:624)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:537)
at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.callSecured(HtmlUnitContextFactory.java:354)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:762)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:738)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:103)
at com.gargoylesoftware.htmlunit.html.HtmlPage.loadExternalJavaScriptFile(HtmlPage.java:1004)
at com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:361)
at com.gargoylesoftware.htmlunit.html.HtmlScript$2.execute(HtmlScript.java:234)
at com.gargoylesoftware.htmlunit.html.HtmlScript.onAllChildrenAddedToPage(HtmlScript.java:256)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.endElement(HtmlUnitNekoDOMBuilder.java:559)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.endElement(HtmlUnitNekoDOMBuilder.java:513)
at net.sourceforge.htmlunit.cyberneko.HTMLTagBalancer.callEndElement(HTMLTagBalancer.java:1192)
at net.sourceforge.htmlunit.cyberneko.HTMLTagBalancer.endElement(HTMLTagBalancer.java:1132)
at net.sourceforge.htmlunit.cyberneko.filters.DefaultFilter.endElement(DefaultFilter.java:219)
at net.sourceforge.htmlunit.cyberneko.filters.NamespaceBinder.endElement(NamespaceBinder.java:312)
at net.sourceforge.htmlunit.cyberneko.HTMLScanner$ContentScanner.scanEndElement(HTMLScanner.java:3185)
at net.sourceforge.htmlunit.cyberneko.HTMLScanner$ContentScanner.scan(HTMLScanner.java:2110)
at net.sourceforge.htmlunit.cyberneko.HTMLScanner.scanDocument(HTMLScanner.java:937)
at net.sourceforge.htmlunit.cyberneko.HTMLConfiguration.parse(HTMLConfiguration.java:443)
at net.sourceforge.htmlunit.cyberneko.HTMLConfiguration.parse(HTMLConfiguration.java:394)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.parse(HtmlUnitNekoDOMBuilder.java:758)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoHtmlParser.parse(HtmlUnitNekoHtmlParser.java:236)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoHtmlParser.parseHtml(HtmlUnitNekoHtmlParser.java:179)
at com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:280)
at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:163)
at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:553)
at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:419)
at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:336)
at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:488)
at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:469)
at htmlunit.WTAHarvester.main(WTAHarvester.java:27)
Caused by: net.sourceforge.htmlunit.corejs.javascript.JavaScriptException: SyntaxError: with statements not allowed in strict mode (https://www.wtatennis.com/resources/v2.1.0/scripts/vendors.min.js#1)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1215)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpret(Interpreter.java:1009)
at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.call(InterpretedFunction.java:111)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.doTopCall(ContextFactory.java:427)
at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.doTopCall(HtmlUnitContextFactory.java:340)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3607)
at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.exec(InterpretedFunction.java:123)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$2.doRun(JavaScriptEngine.java:753)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:867)
... 34 more
JavaScriptException value = SyntaxError: with statements not allowed in strict mode
======= EXCEPTION END ========
问题来自这个文件：
https://www.wtatennis.com/resources/v2.1.0/scripts/vendors.min.js#1
该文件包含连接在一起的缩小库。在这些库中，有underscore.js，它使用with语句，正如您在underscoreJS的源代码中看到的那样。
但是它包含在(上面的第一个链接(中的文件也有一个"use strict";语句，当它检测到它认为不安全的做法时，它会抛出错误。with语句就是其中之一。其他人过去也有过这个问题，如果他们能改变剧本，这个问题是可以解决的。
话虽如此，我在访问该网站主页时没有看到错误。但即使我这样做了，我想你也无法控制这个页面上运行的JS。我不知道Java，也不知道你正在使用的WebClient类(？(，但也许你不需要执行页面的JS，并且可以禁用脚本？
webClient.getOptions().setJavaScriptEnabled(false);