HttpStatusCodeException 失败：401 Unauthorized access using HtmlUnit

Question

我正在尝试使用此代码使用 HtmlUnit 连接到页面：

WebClient webClient = new WebClient();
webClient.getOptions().setThrowExceptionOnScriptError(false);
HtmlPage loginPage = webClient.getPage(WEBSPHERE_URL);

但我总是收到此错误：

18:06:00,390 ERROR [stderr] (Refresh Thread: Equinox Container: 90609616-a614-0017-138e-e6e4aa4a0871) com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException: 401 Unauthorized for https://portal-intranet.ti.sabesp.com.br/wps/myportal
18:06:00,390 ERROR [stderr] (Refresh Thread: Equinox Container: 90609616-a614-0017-138e-e6e4aa4a0871)   at com.gargoylesoftware.htmlunit.WebClient.throwFailingHttpStatusCodeExceptionIfNecessary(WebClient.java:576)
18:06:00,390 ERROR [stderr] (Refresh Thread: Equinox Container: 90609616-a614-0017-138e-e6e4aa4a0871)   at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:401)

当我尝试使用浏览器访问 URL 时，它运行良好。我该如何解决这个问题？

更新

现在我收到此错误：

21:43:35,746 ERROR [osgi.logging.setup_environment] (Thread-257) [br.com.sabesp.setupenvironment.portlet.SetupEnvironmentAction(2427)] The activate method has thrown an exception : java.lang.LinkageError: loader constraint violation: when resolving method "com.gargoylesoftware.htmlunit.WebClient.setCredentialsProvider(Lorg/apache/http/client/CredentialsProvider;)V" the class loader (instance of org/eclipse/osgi/internal/loader/EquinoxClassLoader) of the current class, br/com/sabesp/setupenvironment/importer/util/WebContentUtil, and the class loader (instance of org/eclipse/osgi/internal/loader/EquinoxClassLoader) for the method's defining class, com/gargoylesoftware/htmlunit/WebClient, have different Class objects for the type org/apache/http/client/CredentialsProvider used in the signature

当我尝试这样做时：

DefaultCredentialsProvider userCredentials = new DefaultCredentialsProvider();
userCredentials.addCredentials("username", "password");
webClient.setCredentialsProvider(userCredentials);

我正在使用基于 OSGi 框架的 Liferay DXP 女巫，我也在使用 Gradle。

Answer 1

你似乎在运行一个内网网站，我猜这可以从浏览器中检测到你的用户名。

使用HtmlUnit，您可以使用NTLM身份验证：

DefaultCredentialsProvider credentialsProvider =
                (DefaultCredentialsProvider) webClient.getCredentialsProvider();
credentialsProvider.addCredentials("username", "password");
//OR
credentialsProvider.addNTLMCredentials("username", "password", null, -1, "localhost", "domain");

您还可以启用流量记录以查看需要哪种类型的身份验证：

LogManager.getLogger("org.apache.http.wire").setLevel(Level.ALL);

更新：

您似乎有冲突的httpclient jar，请删除其中一个。

下面的代码会告诉你正在使用哪一个：

System.out.println(CredentialsProvider.class.getProtectionDomain()
    .getCodeSource().getLocation());