How to post form login using jsoup?
i want to login in here
![\"enter](\"https://i.stack.imgur.com/oj84K.png\")
source code
</script>
<ins class="adsbygoogle"
style="display:block"
data-ad-client="ca-pub-5408099190056760"
data-ad-slot="7305827575"
data-ad-format="auto"
data-full-width-responsive="true"></ins>
<script>
(adsbygoogle = window.adsbygoogle || []).push({});
</script> </div>
</div>
<div class="fly-panel detail-box" id="flyReply">
<fieldset class="layui-elem-field layui-field-title" style="text-align: center;">
<legend>3条回答</legend> </fieldset>
<ul class="jieda" id="jieda">
<li data-id="111" class="jieda-daan">
<a name="item-1111111111"></a>
<div class="detail-about detail-about-reply">
<a class="fly-avatar" href="">
<img src="https://www.e-learn.cn/qa/data/avatar/000/00/00/small_000000023.jpg" alt=" 一向 ">
</a>
<div class="fly-detail-user">
<a href="" class="fly-link">
<cite> 一向</cite>
</a>
<span>(楼主)</span>
</div> <div class="detail-hits">
<span>2020-12-02 21:55</span>
</div>
</div>
<div class="detail-body jieda-body photos">
<p>
<p>For me the problem was that I didn't send the viewstate, eventvalidation, viewstategenerator values.</p>
<p>To get these values you have to first send a GET request to the login form page.
In my instance this was a default.aspx page.</p>
<p>Then you have to extract those values and put them into variables. Also of course you need the form login and password field ids, the submit button's id, among other things. For a list of all those variable that are sent, login manually and use chrome dev tools (inspect elements) to look at the network tab for a POST request. Inside it should show the username and password you submitted. There you will see other variables that are sent.</p>
<p>network tab in dev tools example</p>
<p>Next, send a POST request including all those variables, save the cookies from the response into a variable, and you can then use that to go to another page.</p>
<p>Code:</p>
<pre><code>import java.io.IOException;
import java.util.Map;
import org.jsoup.Connection;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.nodes.FormElement;
public class get_example {
public static void main(String[] args) throws IOException {
//===================================
Connection.Response response2 = Jsoup.connect("yourloginpage")
.method(Connection.Method.GET)
.execute();
Document responseDocument = response2.parse();
Element eventValidation = responseDocument.select("input[name=__EVENTVALIDATION]").first();
Element viewState = responseDocument.select("input[name=__VIEWSTATE]").first();
Element viewStateGen = responseDocument.select("input[name=__VIEWSTATEGENERATOR]").first();
Connection.Response response = Jsoup.connect("yourloginpage")
.method(Connection.Method.POST)
.data("ctl00$plnMain$txtLogin", "username")
.data("ctl00$plnMain$txtPassword", "password")
.data("ctl00$plnMain$Submit1", "Log In")
.data("ctl00$ucCopyright$hdnPrivacyStatement", "Privacy Statement")
.data("ctl00$ucCopyright$hdnTermsOfUse", "Terms of Use")
.data("__VIEWSTATE", viewState.attr("value"))
.data("__VIEWSTATEGENERATOR", viewStateGen.attr("value"))
.data("__EVENTVALIDATION", eventValidation.attr("value"))
.execute();
Map<String, String> cookies = response.cookies();
Document homePage = Jsoup.connect("anotherpage")
.cookies(cookies)
.get();
System.out.println(homePage.body().html());
}
}
</code></pre>
</p>
<div class="appendcontent">
</div>
</div>
<div class="jieda-reply">
<span class="jieda-zan button_agree" type="zan" data-id='738093'>
<i class="iconfont icon-zan"></i>
<em>0</em>
</span>
<span type="reply" class="showpinglun" data-id="738093">
<i class="iconfont icon-svgmoban53"></i>
讨论(0)
</span>
<div class="jieda-admin">
</div>
<div class="noreplaytext bb">
<center><div> <a href="https://www.e-learn.cn/qa/q-201546.html"> 查看其它3个回答
</a>
</div></center>
</div> </div>
<div class="comments-mod " style="display: none; float:none;padding-top:10px;" id="comment_738093">
<div class="areabox clearfix">
<form class="layui-form" action="">
<div class="layui-form-item">
<label class="layui-form-label" style="padding-left:0px;width:60px;">发布评论:</label>
<div class="layui-input-block" style="margin-left:90px;">
<input type="text" placeholder="不少于5个字" AUTOCOMPLETE="off" class="comment-input layui-input" name="content" />
<input type='hidden' value='0' name='replyauthor' />
</div>
<div class="mar-t10"><span class="fr layui-btn layui-btn-sm addhuidapinglun" data-id="738093">提交评论 </span></div>
</div>
</form>
</div>
<hr>
<ul class="my-comments-list nav">
<li class="loading">
<img src='https://www.e-learn.cn/qa/static/css/default/loading.gif' align='absmiddle' />
加载中...
</li>
</ul>
</div>
</li>
</ul>
<div class="layui-form layui-form-pane">
<form id="huidaform" name="answerForm" method="post">
<div class="layui-form-item layui-form-text">
<a name="comment"></a>
<div class="layui-input-block">
<script type="text/javascript" src="https://www.e-learn.cn/qa/static/js/neweditor/ueditor.config.js"></script>
<script type="text/javascript" src="https://www.e-learn.cn/qa/static/js/neweditor/ueditor.all.js"></script>
<script type="text/plain" id="editor" name="content" style="width:100%;height:200px;"></script>
<script type="text/javascript">
var isueditor=1;
var editor = UE.getEditor('editor',{
//这里可以选择自己需要的工具按钮名称,此处仅选择如下五个
toolbars:[['source','fullscreen', '|', 'undo', 'redo', '|', 'bold', 'italic', 'underline', 'fontborder', 'strikethrough', 'removeformat', 'formatmatch', 'autotypeset', 'blockquote', 'pasteplain', '|', 'forecolor', 'backcolor', 'insertorderedlist', 'insertunorderedlist', 'selectall', 'cleardoc', '|', 'rowspacingtop', 'rowspacingbottom', 'lineheight', '|', 'customstyle', 'paragraph', 'fontfamily', 'fontsize', '|', 'indent', '|', 'justifyleft', 'justifycenter', 'justifyright', 'justifyjustify', '|', 'link', 'unlink', 'anchor', '|', 'simpleupload', 'insertimage', 'scrawl', 'insertvideo', 'attachment', 'map', 'insertcode', '|', 'horizontal', '|', 'preview', 'searchreplace', 'drafts']],
initialContent:'',
//关闭字数统计
wordCount:false,
zIndex:2,
//关闭elementPath
elementPathEnabled:false,
//默认的编辑区域高度
initialFrameHeight:250
//更多其他参数，请参考ueditor.config.js中的配置项
//更多其他参数，请参考ueditor.config.js中的配置项
});
editor.ready(function() {
editor.setDisabled();
});
$("#editor").find("*").css("max-width","362px");
</script> </div>
</div>
<div class="layui-form-item">
<label for="L_vercode" class="layui-form-label">验证码</label>
<div class="layui-input-inline">
<input type="text" id="code" name="code" value="" required lay-verify="required" placeholder="图片验证码" autocomplete="off" class="layui-input">
</div>
<div class="layui-form-mid">
<span style="color: #c00;"><img class="hand" src="https://www.e-learn.cn/qa/user/code.html" onclick="javascript:updatecode();" id="verifycode"><a class="changecode" href="javascript:updatecode();"> 看不清?</a></span>
</div>
</div>
<div class="layui-form-item">
<input type="hidden" value="201546" id="ans_qid" name="qid">
<input type="hidden" id="tokenkey" name="tokenkey" value=''/>
<input type="hidden" value="How to post form login using jsoup?" id="ans_title" name="title">
<div class="layui-btn layui-btn-disabled" id="ajaxsubmitasnwer" >提交回复</div>
</div>
</form>
</div>
</div>
<input type="hidden" value="201546" id="adopt_qid" name="qid" />
<input type="hidden" id="adopt_answer" value="0" name="aid" />
</div>
<div class="layui-col-md4">
<!-- 热门讨论问题 -->
<dl class="fly-panel fly-list-one">
<dt class="fly-panel-title">热议问题</dt>
<!-- 本周热门讨论问题显示10条-->