我正在尝试使用 HtmlUnit 登录 yahoo.com 。但当我的程序尝试单击“登录”按钮时，它不起作用。我的代码是:
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlForm;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
import com.gargoylesoftware.htmlunit.html.HtmlSubmitInput;
import com.gargoylesoftware.htmlunit.html.HtmlTextInput;
import com.gargoylesoftware.htmlunit.BrowserVersion;
import com.gargoylesoftware.htmlunit.Page;
import com.gargoylesoftware.htmlunit.RefreshHandler;
import java.io.IOException;
import java.net.URL;
public class MyBrowser {
public void homePage() throws Exception {
WebClient webClient = new WebClient(BrowserVersion.FIREFOX_3_6);
webClient.setThrowExceptionOnScriptError(false);
webClient.setRefreshHandler(new RefreshHandler() {
public void handleRefresh(Page page, URL url, int arg) throws IOException {
System.out.println("handleRefresh");
}
});
HtmlPage page = (HtmlPage) webClient.getPage("https://login.yahoo.com/config/login?.src=fpctx&.intl=us&.done=http%3A%2F%2Fwww.yahoo.com%2F");
HtmlForm form = page.getFormByName("login_form");
form.getInputByName("login").setValueAttribute("@@@@@@"); // works OK
form.getInputByName("passwd").setValueAttribute("@@@@@@"); // works OK
page = (HtmlPage) form.getInputByValue("Sign In").click(); // doesn't work
webClient.closeAllWindows();
}
}
错误:
com.gargoylesoftware.htmlunit.ElementNotFoundException: elementName=[input] attributeName=[value] attributeValue=[Sign In]
at com.gargoylesoftware.htmlunit.html.HtmlForm.getInputByValue(HtmlForm.java:737)
表格为:
<form method="post" action="https://login.yahoo.com/config/login?" autocomplete="" name="login_form" onsubmit="return hash2(this)">
...
<div id="submit">
<button type="submit" id=".save" name=".save" class="primaryCta" tabindex="5"> Sign In </button>
</div>
</form>
最佳答案
我对 HtmlUnit 一无所知，但从错误消息来看，它似乎在搜索某个带有 value 的元素。属性，而你的按钮没有这样的属性。也许byName或者这样的？它不是 <input>元素，但是一个<button>元素，所以可能类似于 getButtonByName(".save") ？
编辑:我找到了 Javadoc，看来我猜对了方法名称:-p
关于java - 使用 HtmlUnit + Java 的虚拟 Web 浏览器提交，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/5601639/