htmlunit 是一款开源的java 页面分析工具，读取页面后，可以有效的使用htmlunit分析页面上的内容。项目可以模拟浏览器运行，被誉为java浏览器的开源实现。这个没有界面的浏览器，运行速度也是非常迅速的。

相关文件下载地址：

http://sourceforge.net/projects/htmlunit/files/

http://jaist.dl.sourceforge.net/project/htmlunit/htmlunit/2.15/htmlunit-2.15-bin.zip

我的需求是使用百度的高级新闻搜索，抓取指定站点新闻

手动搜索的设置如图所示

package com.html580;

import java.io.IOException;

import java.net.MalformedURLException;

import java.util.List;

import com.gargoylesoftware.htmlunit.ElementNotFoundException;

import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException;

import com.gargoylesoftware.htmlunit.WebClient;

import com.gargoylesoftware.htmlunit.html.HtmlForm;

import com.gargoylesoftware.htmlunit.html.HtmlHiddenInput;

import com.gargoylesoftware.htmlunit.html.HtmlPage;

import com.gargoylesoftware.htmlunit.html.HtmlRadioButtonInput;

import com.gargoylesoftware.htmlunit.html.HtmlSelect;

import com.gargoylesoftware.htmlunit.html.HtmlSubmitInput;

import com.gargoylesoftware.htmlunit.html.HtmlTextInput;

public class BaiduSpider {

public static void main(String[] args) {

try {

final WebClient webclient = new WebClient();

final HtmlPage htmlpage = webclient.getPage("http://www.baidu.com/gaoji/advanced.html");

//搜索按钮

final HtmlForm form = htmlpage.getFormByName("f1");

final HtmlSubmitInput button = form.getInputByValue("百度一下");

//搜索结果-关键词

final HtmlTextInput textField = form.getInputByName("q1");

textField.setValueAttribute("HTML我帮您");

//分页条数

final HtmlSelect htmlSelet=form.getSelectByName("rn");

htmlSelet.setDefaultValue("10");

//网页的时间

final HtmlSelect htmlSeletlm=form.getSelectByName("rn");

htmlSeletlm.setDefaultValue("0");

//语言

final List radioButtonCts = form.getRadioButtonsByName("ct");

radioButtonCts.get(0).setChecked(true);

radioButtonCts.get(1).setChecked(false);

radioButtonCts.get(2).setChecked(false);

//文档格式

final HtmlSelect htmlSeletft=form.getSelectByName("ft");

htmlSeletft.setDefaultValue("");

//关键词位置

final List radioButtonq5s = form.getRadioButtonsByName("q5");

radioButtonq5s.get(0).setChecked(true);

radioButtonq5s.get(1).setChecked(false);

radioButtonq5s.get(2).setChecked(false);

//站内搜索 限定要搜索指定的网站

final HtmlTextInput htmlTextInputq6 = form.getInputByName("q6");

htmlTextInputq6.setDefaultValue("html580.com");

//隐藏值

final HtmlHiddenInput hiddenInputtn = form.getInputByName("tn");

hiddenInputtn.setDefaultValue("baiduadv");

final HtmlPage page2 = button.click();

String result = page2.asXml();

System.out.println(result);

webclient.closeAllWindows();

} catch (FailingHttpStatusCodeException e) {

e.printStackTrace();

} catch (MalformedURLException e) {

e.printStackTrace();

} catch (ElementNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

}