我想登录https://pacer.login.uscourts.gov/csologin/login.jsf.我使用html单位提交登录表单.这是我的代码：
public void submittingForm() throws Exception {
final WebClient webClient = new WebClient();
// Get the first page
final HtmlPage page1 = webClient.getPage("https://pacer.login.uscourts.gov/csologin/login.jsf");
// Get the form that we are dealing with and within that form,
// find the submit button and the field that we want to change.
final HtmlForm form = page1.getFormByName("login");
// final HtmlSubmitButton button = form.getButtonByName("login:j_idt184");
final HtmlTextInput textField = form.getInputByName("login:loginName");
final HtmlTextInput textField1 = form.getInputByName("login:password");
// Change the value of the text field
textField.setValueAttribute("XXX");
textField1.setValueAttribute("XXX");
// Now submit the form by clicking the button and get back the second page.
final HtmlPage page2 = form.getButtonByName("login:j_idt184").click();
System.out.println(page2.asText());
webClient.closeAllWindows();
}
但它总是显示同样的错误：
Exception in thread "main" java.lang.IllegalAccessError: class com.gargoylesoftware.htmlunit.javascript.regexp.HtmlUnitRegExpProxy$FixedSubString cannot access its superclass net.sourceforge.htmlunit.corejs.javascript.regexp.SubString
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.makeContext(HtmlUnitContextFactory.java:227)
at net.sourceforge.htmlunit.corejs.javascript.Context.enter(Context.java:439)
at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:535)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:538)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.initialize(JavaScriptEngine.java:157)
at com.gargoylesoftware.htmlunit.WebClient.initialize(WebClient.java:1141)
at com.gargoylesoftware.htmlunit.WebWindowImpl.setEnclosedPage(WebWindowImpl.java:109)
at com.gargoylesoftware.htmlunit.html.HTMLParser.parse(HTMLParser.java:200)
at com.gargoylesoftware.htmlunit.html.HTMLParser.parseHtml(HTMLParser.java:179)
at com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:221)
at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:106)
at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:433)
at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:311)
at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:373)
at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:358)
at htmlunit.HtmlUnit.submittingForm(HtmlUnit.java:63)
at htmlunit.HtmlUnit.main(HtmlUnit.java:28)
Java Result: 1
如何克服上述错误并成功登录以上url.i我在我的代码中使用以下jar：
htmlunit2.9jar,公地code.jar等.哪个jar需要避免上面的错误.
请提供你的建议.
谢谢
阿图尔
解决方法:
我在我的系统上安装的HtmlUnit包括htmlunit-2.15.jar(让我们称之为“主”JAR)和htmlunit-core-js-2.15.jar(让我们称之为“corejs”JAR).查看两个JAR,我可以看到主JAR有com.gargoylesoftware.htmlunit.javascript.regexp.*,而corejs JAR有net.sourceforge.htmlunit.corejs.javascript.regexp.*：
> for i in htmlunit-2.15.jar htmlunit-core-js-2.15.jar; do echo "===== $i ====="; unzip -l $i| grep regexp; done;
===== htmlunit-2.15.jar =====
0 06-02-2014 19:53 com/gargoylesoftware/htmlunit/javascript/regexp/
768 06-02-2014 19:53 com/gargoylesoftware/htmlunit/javascript/regexp/HtmlUnitRegExpProxy$FixedSubString.class
1846 06-02-2014 19:53 com/gargoylesoftware/htmlunit/javascript/regexp/HtmlUnitRegExpProxy$RegExpData.class
11530 06-02-2014 19:53 com/gargoylesoftware/htmlunit/javascript/regexp/HtmlUnitRegExpProxy.class
1549 06-02-2014 19:53 com/gargoylesoftware/htmlunit/javascript/regexp/RegExpJsToJavaConverter$Tape.class
3777 06-02-2014 19:53 com/gargoylesoftware/htmlunit/javascript/regexp/RegExpJsToJavaConverter.class
===== htmlunit-core-js-2.15.jar =====
0 05-30-2014 10:28 net/sourceforge/htmlunit/corejs/javascript/regexp/
944 05-30-2014 10:28 net/sourceforge/htmlunit/corejs/javascript/regexp/CompilerState.class
712 05-30-2014 10:28 net/sourceforge/htmlunit/corejs/javascript/regexp/GlobData.class
42350 05-30-2014 10:28 net/sourceforge/htmlunit/corejs/javascript/regexp/NativeRegExp.class
6850 05-30-2014 10:28 net/sourceforge/htmlunit/corejs/javascript/regexp/NativeRegExpCtor.class
1077 05-30-2014 10:28 net/sourceforge/htmlunit/corejs/javascript/regexp/REBackTrackData.class
700 05-30-2014 10:28 net/sourceforge/htmlunit/corejs/javascript/regexp/RECharSet.class
819 05-30-2014 10:28 net/sourceforge/htmlunit/corejs/javascript/regexp/RECompiled.class
1245 05-30-2014 10:28 net/sourceforge/htmlunit/corejs/javascript/regexp/REGlobalData.class
687 05-30-2014 10:28 net/sourceforge/htmlunit/corejs/javascript/regexp/RENode.class
918 05-30-2014 10:28 net/sourceforge/htmlunit/corejs/javascript/regexp/REProgState.class
14443 05-30-2014 10:28 net/sourceforge/htmlunit/corejs/javascript/regexp/RegExpImpl.class
1072 05-30-2014 10:28 net/sourceforge/htmlunit/corejs/javascript/regexp/SubString.class
所以我怀疑你成功地将主JAR包含在$CLASSPATH中,但不包括corejs JAR.因此,要解决此问题,您必须找到corejs JAR并将其包含在$CLASSPATH中.
通常,一旦安装,这两个JAR将存在于同一目录中.因此,如果您遇到这种情况,则可能更容易在$CLASSPATH中使用wildcard语法一次性获取它们.