Java -如何使用HtmlUnit登录网站？
Java -如何使用HtmlUnit登录网站？
提问于 2015-07-19 06:59:03
我正在写一个Java程序来登录我的学校用来发布成绩的网站。
这是登录表单的url：https://ma-andover.myfollett.com/aspen/logon.do
这是登录表单的HTML：
<form name="logonForm" method="post" action="/aspen/logon.do" autocomplete="off"><div><input type="hidden" name="org.apache.struts.taglib.html.TOKEN" value="30883f4c7e25a014d0446b5251aebd9a"></div>
<input type="hidden" id="userEvent" name="userEvent" value="930">
<input type="hidden" id="userParam" name="userParam" value="">
<input type="hidden" id="operationId" name="operationId" value="">
<input type="hidden" id="deploymentId" name="deploymentId" value="ma-andover">
<input type="hidden" id="scrollX" name="scrollX" value="0">
<input type="hidden" id="scrollY" name="scrollY" value="0">
<input type="hidden" id="formFocusField" name="formFocusField" value="username">
<input type="hidden" name="mobile" value="false">
<input type="hidden" name="SSOLoginDone" value="">
<center>
<img src="images/spacer.gif" height="15" width="1">
<script language="JavaScript">
document.forms[0].elements['deploymentId'].value = 'ma-andover';
</script>
<script language="JavaScript">
$(function()
{
$('form').attr('autocomplete', 'off');
var name = $('#username');
var password = $('#password');
name.attr('autocomplete', 'off');
password.attr('autocomplete', 'off');
if (name.val() == '')
{
password.attr('disabled','disabled');
}
});
</script>
<img src="images/spacer.gif" height="30" width="1">
<table border="0" cellpadding="0" cellspacing="0">
<tbody><tr>
<td>
<div id="logonDetailContainer" class="logonDetailContainer">
<table border="0" cellpadding="0" cellspacing="0">
<tbody><tr>
<td>
<label style="text-align: center; margin-bottom: 0px">Andover Public Schools</label>
<img src="images/spacer.gif" height="10" width="1">
<hr class="logonHorizontalRule">
</td>
</tr>
<tr>
<td>
<img src="images/spacer.gif" height="10" width="1">
<input type="text" name="fakeuser" style="display: none">
<input type="password" name="fakepassword" style="display: none">
</td>
</tr>
<tr>
<td class="labelCell">
<label>Login ID</label>
<input type="text" name="username" tabindex="1" value="" onkeypress="$('#password').prop('disabled', false)" id="username" class="logonInput" autocomplete="off">
</td>
</tr>
<tr>
<td class="labelCell">
<label>Password</label>
<input id="password" type="password" name="password" tabindex="2" value="" class="logonInput" autocomplete="off" disabled="disabled">
<a href="javascript:EmbeddedPopup.popupManager.open('passwordRecovery.do?isSecondary=false&deploymentId=ma-andover', 400, 400, 100)" tabindex="5" style="float: right">
I forgot my password
</a>
</td>
</tr>
<tr>
<td width="1" class="logonTopPadding" style="float: left">
<input type="submit" tabindex="3" value="Log On" class="log-button">
</td>
</tr>
</tbody></table>
</div>
</td>
</tr>
</tbody></table>
</center>
<script>
setTimeout(function(){window.location.reload(true);}, 1800000);
</script>
</form>我正在尝试使用以下代码登录：
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlForm;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
public class LoginAttempt {
public static void main(String[] args) throws Exception {
WebClient webClient = new WebClient();
HtmlPage page = (HtmlPage) webClient.getPage("https://ma-andover.myfollett.com/aspen/logon.do");
HtmlForm form = page.getFormByName("logonForm");
form.getInputByName("username").setValueAttribute("myUsername"); //works fine
form.getInputByName("password").setValueAttribute("myPassword"); //does not work
page = form.getInputByValue("Log On").click(); //works fine
System.out.println(page.asText());
}
}该程序填充用户名框并单击“登录”按钮，但它不填充密码框。要使此程序正常工作，我可以进行哪些更改？我怀疑密码框的"type = ' password '“属性与这个问题有关，但如果我错了，请纠正我。任何帮助都是非常感谢的。非常感谢。
目标页面：https://ma-andover.myfollett.com/aspen/home.do
这是我的输出，以防它可能会有所帮助：
Aspen: Log On
Aspen
About Aspen
Andover Public Schools
Login ID myUsername
Password I forgot my password
Log On
Copyright © 2003-2014 Follett School Solutions. All rights reserved.
Follett Corporation Follett Software Company Aspen Terms of Use
You must enter a password.
OK回答 3
Stack Overflow用户
回答已采纳
发布于 2015-07-19 07:22:45
密码字段将被禁用，直到您在username字段中键入内容。通过设置username中的值，不会触发管理启用密码字段的事件。
以下是工作原理
public static void main(String[] args) {
WebClient webClient = new WebClient();
try {
HtmlPage page = (HtmlPage) webClient
.getPage("https://ma-andover.myfollett.com/aspen/logon.do");
HtmlForm form = page.getFormByName("logonForm");
form.getInputByName("username").setValueAttribute("myUsername");
HtmlInput passWordInput = form.getInputByName("password");
passWordInput.removeAttribute("disabled");
passWordInput.setValueAttribute("myPassword");
page = form.getInputByValue("Log On").click(); // works fine
System.out.println(page.asText());
} catch (Exception e) {
e.printStackTrace();
} finally {
webClient.close();
}
}输出为
Aspen: Log On
Aspen
About Aspen
Andover Public Schools
Login ID myUsername
Password I forgot my password
Log On
Copyright © 2003-2014 Follett School Solutions. All rights reserved.
Follett Corporation Follett Software Company Aspen Terms of Use
Invalid login.
OKStack Overflow用户
发布于 2015-07-19 12:10:01
要自动处理JavaScript，您应该改用type()。
try (WebClient webClient = new WebClient()) {
HtmlPage page = (HtmlPage) webClient.getPage("https://ma-andover.myfollett.com/aspen/logon.do");
HtmlForm form = page.getFormByName("logonForm");
form.getInputByName("username").type("myUsername");
form.getInputByName("password").type("myPassword");
page = form.getInputByValue("Log On").click();
System.out.println(page.asText());
}Stack Overflow用户
发布于 2018-07-24 08:04:56
我使用：
final WebClient webClient = new WebClient())
HtmlPage page = webClient.getPage("url");
((HtmlTextInput) page.getHtmlElementById("usernameID")).setText("Username");
page.getHtmlElementById("passwordID").setAttribute("value","Password");
page.getElementsByTagName("button").get(0).click();
System.out.println(page.asText());我以这种方式单击该按钮，因为我的按钮没有id、名称或值，但幸运的是，它是页面上唯一的按钮。因此，我只需要获取所有按钮标记(全部)，并选择列表中的第一个要单击的元素。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/31496365
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