Java模拟登录新浪报错?报错

import java.io.IOException;
import java.net.MalformedURLException;
import com.gargoylesoftware.htmlunit.BrowserVersion;
import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException;
import com.gargoylesoftware.htmlunit.NicelyResynchronizingAjaxController;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlInput;
import com.gargoylesoftware.htmlunit.html.HtmlPage;


public class SinaLoginTest {
 public static void main(String[] args) throws Exception {
 WebClient client = new WebClient(BrowserVersion.FIREFOX_24);
 client.getOptions().setJavaScriptEnabled(true); // 默认执行js，如果不执行js，则可能会登录失败，因为用户名密码框需要js来绘制。
 client.getOptions().setCssEnabled(false);
 client.setAjaxController(new NicelyResynchronizingAjaxController());
 client.getOptions().setThrowExceptionOnScriptError(false);


 HtmlPage page = client
 .getPage("http://login.sina.com.cn/sso/login.php?client=ssologin.js(v1.3.16)");
 // System.out.println(page.asText());


 // 登录


 HtmlInput ln = page.getHtmlElementById("username");
 HtmlInput pwd = page.getHtmlElementById("password");
 HtmlInput btn = page
 .getFirstByXPath(".//*[@id='vForm']/div[3]/ul/li[6]/div[2]/input");


 ln.setAttribute("value", "159890555555");
 pwd.setAttribute("value", "nmj121");


 HtmlPage page2 = btn.click();
 // 登录完成，现在可以爬取任意你想要的页面了。
 System.out.println("\n\n\n");
 // System.out.println(page2.asText());


 HtmlPage page3 = client.getPage("http://weibo.com/friends?leftnav=1&wvr=5&isfriends=1&step=2");
 System.out.println(" : " + page3.asXml());


 client.closeAllWindows();
 }


}


 

 
 

Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
	FIREFOX_24 cannot be resolved or is not a field
	The method getOptions() is undefined for the type WebClient
	The method getOptions() is undefined for the type WebClient
	NicelyResynchronizingAjaxController cannot be resolved to a type
	The method getOptions() is undefined for the type WebClient
	The method getPage(URL) in the type WebClient is not applicable for the arguments (String)
	Type mismatch: cannot convert from HtmlElement to HtmlInput
	Type mismatch: cannot convert from HtmlElement to HtmlInput
	The method getFirstByXPath(String) is undefined for the type HtmlPage
	The method setAttribute(String, String) is undefined for the type HtmlInput
	The method setAttribute(String, String) is undefined for the type HtmlInput
	Type mismatch: cannot convert from Page to HtmlPage
	The method getPage(URL) in the type WebClient is not applicable for the arguments (String)
	The method closeAllWindows() is undefined for the type WebClient

	at com.qjj.test.SinaLoginTest.main(SinaLoginTest.java:14)