htmlunit模拟登录
htmlunit jar项目路径http://sourceforge.net/projects/htmlunit/files/htmlunit/
demo代码如下
public class AutoLogin {
/** 登录页面 */
private static final String LOGIN_URL = "http://website/login.aspx";
/** 任务列表页面 */
private static final String TASK_LIST_URL = "http://website/Banli.aspx";
/**
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
testHomePage();
}
public static void testHomePage() throws Exception {
final WebClient webClient = new WebClient(BrowserVersion.INTERNET_EXPLORER_8);
webClient.getOptions().setThrowExceptionOnScriptError(false); //此行必须要加
webClient.getOptions().setCssEnabled(false);
// webClient.getOptions().setJavaScriptEnabled(true);
// webClient.getOptions().setThrowExceptionOnFailingStatusCode(false);
webClient.getOptions().setTimeout(300000);
// 获取首页
HtmlPage page = (HtmlPage) webClient.getPage(LOGIN_URL);
// 根据form的名字获取页面表单，也可以通过索引来获取：page.getForms().get(0)
final HtmlForm form = page.getFormByName("form1");
// 用户名/密码
HtmlTextInput textUserName = form.getInputByName("txtUserName");
textUserName.setText("username");
HtmlPasswordInput txtPwd = form.getInputByName("txtPwd");
txtPwd.setText("pass");
//调用JS触发登录按钮
Page page1 = page.executeJavaScript("$('#btn').click()").getNewPage();
page1 = webClient.getPage(TASK_LIST_URL);
System.out.println("*************************************************************************************");
System.out.println(page1.getWebResponse().getContentAsString());
System.out.println("*************************************************************************************");
System.out.println("");
System.out.println("Cookies : " + webClient.getCookieManager().getCookies().toString());
}
}
搞不清ASP.NET内部什么逻辑，试了很多方法都不行，查看了无所网站，无意中看到一个这个配置http://stackoverflow.com/questions/20352284/scraping-aspx-page-using-htmlunit
import java.net.MalformedURLException; import com.gargoylesoftware.htmlunit.BrowserVersion;
import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlElement;
import com.gargoylesoftware.htmlunit.html.HtmlPage; public class teste { public static void main(String args[]) throws FailingHttpStatusCodeException, MalformedURLException, IOException
{
HtmlPage page = null;
String url = "http://www.bmfbovespa.com.br/cias-listadas/empresas-listadas/BuscaEmpresaListada.aspx?Idioma=pt-br"; WebClient webClient = new WebClient(BrowserVersion.FIREFOX_17); webClient.getOptions().setThrowExceptionOnScriptError(false);
webClient.getOptions().setCssEnabled(false);
webClient.getOptions().setJavaScriptEnabled(false);
webClient.getOptions().setThrowExceptionOnFailingStatusCode(false);
webClient.getOptions().setTimeout(30000); page = webClient.getPage( url ); System.out.println("Current page: Empresas Listadas | BM&FBOVESPA"); HtmlElement theElement1 = (HtmlElement) page.getElementById("ctl00_contentPlaceHolderConteudo_BuscaNomeEmpresa1_btnTodas");
page = theElement1.click(); System.out.println(page.asText()); System.out.println("Test has completed successfully");
} }
最后测试下来，如果不加 webClient.getOptions().setThrowExceptionOnScriptError(false);就一直报这个错误
Exception in thread "main" ======= EXCEPTION START ========
Exception class=[java.lang.RuntimeException]
com.gargoylesoftware.htmlunit.ScriptException: Exception invoking click
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:954)
at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:628)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:513)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:836)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:812)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:800)
at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptIfPossible(HtmlPage.java:910)
at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScript(HtmlPage.java:878)
at com.suypower.AutoLogin12345.testHomePage(AutoLogin12345.java:48)
at com.suypower.AutoLogin12345.main(AutoLogin12345.java:23)
Caused by: java.lang.RuntimeException: Exception invoking click
at net.sourceforge.htmlunit.corejs.javascript.MemberBox.invoke(MemberBox.java:181)
at net.sourceforge.htmlunit.corejs.javascript.FunctionObject.call(FunctionObject.java:449)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1536)
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:3286)
at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.exec(InterpretedFunction.java:115)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$3.doRun(JavaScriptEngine.java:827)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:939)
... 9 more
Caused by: com.gargoylesoftware.htmlunit.ScriptException: TypeError: Cannot read property "nodeName" from null (http://xxxx/305000772#7)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:954)
at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:628)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:513)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:836)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:812)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:800)
at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptIfPossible(HtmlPage.java:910)
at com.gargoylesoftware.htmlunit.html.HtmlScript.executeInlineScriptIfNeeded(HtmlScript.java:354)
at com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:415)
at com.gargoylesoftware.htmlunit.html.HtmlScript$3.execute(HtmlScript.java:271)
at com.gargoylesoftware.htmlunit.html.HtmlScript.onAllChildrenAddedToPage(HtmlScript.java:293)
at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:799)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:756)
at org.cyberneko.html.HTMLTagBalancer.callEndElement(HTMLTagBalancer.java:1170)
at org.cyberneko.html.HTMLTagBalancer.endElement(HTMLTagBalancer.java:1072)
at org.cyberneko.html.filters.DefaultFilter.endElement(DefaultFilter.java:206)
at org.cyberneko.html.filters.NamespaceBinder.endElement(NamespaceBinder.java:330)
at org.cyberneko.html.HTMLScanner$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:1039)
at com.gargoylesoftware.htmlunit.html.HTMLParser.parse(HTMLParser.java:252)
at com.gargoylesoftware.htmlunit.html.HTMLParser.parseHtml(HTMLParser.java:198)
at com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:271)
at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:159)
at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:478)
at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:352)
at com.gargoylesoftware.htmlunit.html.BaseFrameElement.loadInnerPageIfPossible(BaseFrameElement.java:183)
at com.gargoylesoftware.htmlunit.html.BaseFrameElement.loadInnerPage(BaseFrameElement.java:121)
at com.gargoylesoftware.htmlunit.html.HtmlPage.loadFrames(HtmlPage.java:1893)
at com.gargoylesoftware.htmlunit.html.HtmlPage.initialize(HtmlPage.java:227)
at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:485)
at com.gargoylesoftware.htmlunit.WebClient.loadDownloadedResponses(WebClient.java:2135)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.doProcessPostponedActions(JavaScriptEngine.java:982)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.processPostponedActions(JavaScriptEngine.java:1072)
at com.gargoylesoftware.htmlunit.html.DomElement.click(DomElement.java:789)
at com.gargoylesoftware.htmlunit.html.HtmlImageInput.click(HtmlImageInput.java:152)
at com.gargoylesoftware.htmlunit.javascript.host.html.HTMLInputElement.click(HTMLInputElement.java:477)
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)
... 19 more
Caused by: net.sourceforge.htmlunit.corejs.javascript.EcmaError: TypeError: Cannot read property "nodeName" from null (http://xxxx/305000772#7)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3935)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3919)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.typeError(ScriptRuntime.java:3944)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.typeError2(ScriptRuntime.java:3960)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.undefReadError(ScriptRuntime.java:3971)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.getObjectProp(ScriptRuntime.java:1519)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1243)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpret(Interpreter.java:798)
at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.exec(InterpretedFunction.java:118)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$3.doRun(JavaScriptEngine.java:827)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:939)
... 65 more
Enclosed exception:
java.lang.RuntimeException: Exception invoking click
at net.sourceforge.htmlunit.corejs.javascript.MemberBox.invoke(MemberBox.java:181)
at net.sourceforge.htmlunit.corejs.javascript.FunctionObject.call(FunctionObject.java:449)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1536)
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:3286)
at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.exec(InterpretedFunction.java:115)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$3.doRun(JavaScriptEngine.java:827)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:939)
at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:628)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:513)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:836)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:812)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:800)
at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptIfPossible(HtmlPage.java:910)
at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScript(HtmlPage.java:878)
at com.suypower.AutoLogin12345.testHomePage(AutoLogin12345.java:48)
at com.suypower.AutoLogin12345.main(AutoLogin12345.java:23)
Caused by: com.gargoylesoftware.htmlunit.ScriptException: TypeError: Cannot read property "nodeName" from null (http://xxx/305000772#7)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:954)
at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:628)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:513)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:836)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:812)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:800)
at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptIfPossible(HtmlPage.java:910)
at com.gargoylesoftware.htmlunit.html.HtmlScript.executeInlineScriptIfNeeded(HtmlScript.java:354)
at com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:415)
at com.gargoylesoftware.htmlunit.html.HtmlScript$3.execute(HtmlScript.java:271)
at com.gargoylesoftware.htmlunit.html.HtmlScript.onAllChildrenAddedToPage(HtmlScript.java:293)
at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:799)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:756)
at org.cyberneko.html.HTMLTagBalancer.callEndElement(HTMLTagBalancer.java:1170)
at org.cyberneko.html.HTMLTagBalancer.endElement(HTMLTagBalancer.java:1072)
at org.cyberneko.html.filters.DefaultFilter.endElement(DefaultFilter.java:206)
at org.cyberneko.html.filters.NamespaceBinder.endElement(NamespaceBinder.java:330)
at org.cyberneko.html.HTMLScanner$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:1039)
at com.gargoylesoftware.htmlunit.html.HTMLParser.parse(HTMLParser.java:252)
at com.gargoylesoftware.htmlunit.html.HTMLParser.parseHtml(HTMLParser.java:198)
at com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:271)
at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:159)
at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:478)
at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:352)
at com.gargoylesoftware.htmlunit.html.BaseFrameElement.loadInnerPageIfPossible(BaseFrameElement.java:183)
at com.gargoylesoftware.htmlunit.html.BaseFrameElement.loadInnerPage(BaseFrameElement.java:121)
at com.gargoylesoftware.htmlunit.html.HtmlPage.loadFrames(HtmlPage.java:1893)
at com.gargoylesoftware.htmlunit.html.HtmlPage.initialize(HtmlPage.java:227)
at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:485)
at com.gargoylesoftware.htmlunit.WebClient.loadDownloadedResponses(WebClient.java:2135)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.doProcessPostponedActions(JavaScriptEngine.java:982)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.processPostponedActions(JavaScriptEngine.java:1072)
at com.gargoylesoftware.htmlunit.html.DomElement.click(DomElement.java:789)
at com.gargoylesoftware.htmlunit.html.HtmlImageInput.click(HtmlImageInput.java:152)
at com.gargoylesoftware.htmlunit.javascript.host.html.HTMLInputElement.click(HTMLInputElement.java:477)
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)
... 19 more
Caused by: net.sourceforge.htmlunit.corejs.javascript.EcmaError: TypeError: Cannot read property "nodeName" from null (http://xxx/305000772#7)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3935)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3919)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.typeError(ScriptRuntime.java:3944)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.typeError2(ScriptRuntime.java:3960)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.undefReadError(ScriptRuntime.java:3971)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.getObjectProp(ScriptRuntime.java:1519)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1243)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpret(Interpreter.java:798)
at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.exec(InterpretedFunction.java:118)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$3.doRun(JavaScriptEngine.java:827)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:939)
... 65 more
======= EXCEPTION END ========
希望能帮助到你，晚安！
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