login.html
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=GBK" /> </head> <script> function getContent(){ var url= "result.html"; var xhr=new (window.XMLHttpRequest||window.ActiveXObject)("Microsoft.XMLHTTP"); xhr.onreadystatechange = function() { if (xhr.readyState == 4 && xhr.status == 200) { document.write(xhr.responseText); document.close(); } }; xhr.open("GET",url,false); xhr.send(); } getContent(); </script> </html>
result.html
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=GBK"/> <title>login</title> </head> <body> <script type="text/javascript"> var d = document, b = d.body; var n = d.createElement("div"); n.innerHTML = "<div> I was appended... </div>"; b.appendChild(n); </script> </body> </html>
Test.java
@Test public void testExecScript() throws Exception { WebClient client = new WebClient(BrowserVersion.CHROME); client.getOptions().setUseInsecureSSL(true); client.getOptions().setJavaScriptEnabled(true); client.getOptions().setCssEnabled(false); client.getOptions().setThrowExceptionOnScriptError(false); client.getOptions().setTimeout(10000); String url = "http://localhost/login.html"; HtmlPage loginPage = client.getPage(url); logger.info("{}\n{}", loginPage.getTitleText(), loginPage.asXml()); }
error output:
EcmaError: lineNumber=[1] column=[0] lineSource=[<no source>] name=[TypeError] sourceName=[script in http://localhost/login.html from (1, 1462) to (1, 1780)] message=[TypeError: Cannot call method "appendChild" of null (script in login.html from (1, 1462) to (1, 1780)#1)]com.gargoylesoftware.htmlunit.ScriptException: TypeError: Cannot call method "appendChild" of null (script in login.html from (1, 1462) to (1, 1780)#1)at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:847)at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:620)at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:513)at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:733)at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:708)at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptIfPossible(HtmlPage.java:982)at com.gargoylesoftware.htmlunit.html.HtmlScript.executeInlineScriptIfNeeded(HtmlScript.java:351)at com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:411)at com.gargoylesoftware.htmlunit.html.HtmlScript$3.execute(HtmlScript.java:276)at com.gargoylesoftware.htmlunit.html.HtmlScript.onAllChildrenAddedToPage(HtmlScript.java:290)at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:793)at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:751)at org.cyberneko.html.HTMLTagBalancer.callEndElement(HTMLTagBalancer.java:1170)at org.cyberneko.html.HTMLTagBalancer.endElement(HTMLTagBalancer.java:1072)at org.cyberneko.html.filters.DefaultFilter.endElement(DefaultFilter.java:206)at org.cyberneko.html.filters.NamespaceBinder.endElement(NamespaceBinder.java:330)at org.cyberneko.html.HTMLScanner$ContentScanner.scanEndElement(HTMLScanner.java:3126)at org.cyberneko.html.HTMLScanner$ContentScanner.scan(HTMLScanner.java:2093)at org.cyberneko.html.HTMLScanner.evaluateInputSource(HTMLScanner.java:608)at org.cyberneko.html.HTMLConfiguration.evaluateInputSource(HTMLConfiguration.java:342)at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.pushInputString(HTMLParser.java:420)at com.gargoylesoftware.htmlunit.html.HtmlPage.writeInParsedStream(HtmlPage.java:2375)at com.gargoylesoftware.htmlunit.javascript.host.html.HTMLDocument.write(HTMLDocument.java:683)at com.gargoylesoftware.htmlunit.javascript.host.html.HTMLDocument.write(HTMLDocument.java:569)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:606)at net.sourceforge.htmlunit.corejs.javascript.MemberBox.invoke(MemberBox.java:153)at net.sourceforge.htmlunit.corejs.javascript.FunctionObject.call(FunctionObject.java:384)at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1531)at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpret(Interpreter.java:798)at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.call(InterpretedFunction.java:105)at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$4.doRun(JavaScriptEngine.java:772)at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:832)at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:620)at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:513)at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:779)at com.gargoylesoftware.htmlunit.javascript.host.xml.XMLHttpRequest.setState(XMLHttpRequest.java:218)at com.gargoylesoftware.htmlunit.javascript.host.xml.XMLHttpRequest.doSend(XMLHttpRequest.java:762)at com.gargoylesoftware.htmlunit.javascript.host.xml.XMLHttpRequest.send(XMLHttpRequest.java:598)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:606)at net.sourceforge.htmlunit.corejs.javascript.MemberBox.invoke(MemberBox.java:153)at net.sourceforge.htmlunit.corejs.javascript.FunctionObject.call(FunctionObject.java:448)at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1531)at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpret(Interpreter.java:798)at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.call(InterpretedFunction.java:105)at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.doTopCall(ContextFactory.java:411)at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.doTopCall(HtmlUnitContextFactory.java:309)at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3057)at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.exec(InterpretedFunction.java:115)at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$3.doRun(JavaScriptEngine.java:724)at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:832)at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:620)at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:513)at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:733)at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:708)at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptIfPossible(HtmlPage.java:982)at com.gargoylesoftware.htmlunit.html.HtmlScript.executeInlineScriptIfNeeded(HtmlScript.java:351)at com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:411)at com.gargoylesoftware.htmlunit.html.HtmlScript$3.execute(HtmlScript.java:276)at com.gargoylesoftware.htmlunit.html.HtmlScript.onAllChildrenAddedToPage(HtmlScript.java:290)at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:793)at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:751)at org.cyberneko.html.HTMLTagBalancer.callEndElement(HTMLTagBalancer.java:1170)at org.cyberneko.html.HTMLTagBalancer.endElement(HTMLTagBalancer.java:1072)at org.cyberneko.html.filters.DefaultFilter.endElement(DefaultFilter.java:206)at org.cyberneko.html.filters.NamespaceBinder.endElement(NamespaceBinder.java:330)at org.cyberneko.html.HTMLScanner$ContentScanner.scanEndElement(HTMLScanner.java:3126)at org.cyberneko.html.HTMLScanner$ContentScanner.scan(HTMLScanner.java:2093)at org.cyberneko.html.HTMLScanner.scanDocument(HTMLScanner.java:920)at org.cyberneko.html.HTMLConfiguration.parse(HTMLConfiguration.java:499)at org.cyberneko.html.HTMLConfiguration.parse(HTMLConfiguration.java:452)at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.parse(HTMLParser.java:1017)at com.gargoylesoftware.htmlunit.html.HTMLParser.parse(HTMLParser.java:248)at com.gargoylesoftware.htmlunit.html.HTMLParser.parseHtml(HTMLParser.java:194)at com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:268)at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:156)at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:471)at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:345)at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:410)at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:395)at com.aduan.study.test.web.crawler.HtmlUnitTest.testExecScript(HtmlUnitTest.java:186)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:606)at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)at org.junit.runners.ParentRunner.run(ParentRunner.java:309)at org.junit.runner.JUnitCore.run(JUnitCore.java:160)at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78)at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212)at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:606)at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
解决方法1:
删掉result.html的head
<head> <meta http-equiv="Content-Type" content="text/html; charset=GBK"/> <title>login</title> </head>
或login.html添加body
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=GBK" /> </head><body><script>function getContent(){ var url= "result.html"; var xhr=new (window.XMLHttpRequest||window.ActiveXObject)("Microsoft.XMLHTTP"); xhr.onreadystatechange = function() { if (xhr.readyState == 4 && xhr.status == 200) { document.write(xhr.responseText); document.close(); } }; xhr.open("GET",url,false); xhr.send(); }getContent(); </script> </head> <body> </body> </html>
result.html javascript add
d.write("d:" + d + "<br/>");d.write("b:" + b + "<br/>");
ouput:
d:[object HTMLDocument]<br/>b:[object HTMLBodyElement]<br/><div> <div> I was appended... </div></div>
解决方法2:webclient处理返回信息,加上body
client.setWebConnection( new WebConnectionWrapper(client) { public WebResponse getResponse(WebRequest request) throws IOException { WebResponse response = super.getResponse(request); String content = response.getContentAsString("UTF-8"); if(content != null) { if(!content.contains("<body>") && content.contains("</head>")) { content = content.replace("</head>", "</head>\n<body>"); if(!content.contains("</body>") && content.contains("</html>")) { content = content.replace("</html>", "</body>\n</html>"); } } } logger.info("response: {}", content); WebResponseData data = new WebResponseData(content.getBytes("UTF-8"), response.getStatusCode(), response.getStatusMessage(), response.getResponseHeaders()); response = new WebResponse(data, request, response.getLoadTime()); return response; } });
时间: 2024-11-05 20:49:41