使用HtmlUnit实现自动打卡

        打卡制度由来已久，对于公司管理员工的出勤比较重要，存在也是合情合理，但对于程序员这个向往弹性工作的群体，内心里还是不太乐意，遂利用HtmlUnit写了一个自动打卡的工具，放到公司内网，通过Crontab实现自动打卡，本意不在打卡，更多是为了学习HtmlUnit，为将来实现自动化测试热身。^_^

        对于网页解析部分，仅适用于我所在的公司的打卡页面，如果有同学恰好也需要这个功能，需要自己再查资料修改代码了

package com.xx.AutoAttendance;

/**
 * 自动打卡考勤程序，根据页面不同，解析网页的代码需要修改
 * @author Chris.Xiao
 */

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.HtmlAnchor;
import com.gargoylesoftware.htmlunit.html.HtmlForm;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
import com.gargoylesoftware.htmlunit.html.HtmlPasswordInput;
import com.gargoylesoftware.htmlunit.html.HtmlSubmitInput;
import com.gargoylesoftware.htmlunit.html.HtmlTextInput;

public class AutoAttendance
{  
    public static void main(String [] args) throws FailingHttpStatusCodeException, MalformedURLException, IOException
    {   
        String LOGIN_URL = "http://kaoqin.xx.com";
        //模拟一个浏览器  
        WebClient webClient = new WebClient(BrowserVersion.FIREFOX_2);  

        //设置webClient的相关参数 
        webClient.setJavaScriptEnabled(true);
    
        webClient.setCssEnabled(false);
        webClient.setAjaxController(new NicelyResynchronizingAjaxController());  
        webClient.setTimeout(35000);  
        webClient.setThrowExceptionOnScriptError(false);  
        //模拟浏览器打开目标网址  
        HtmlPage loginPage= webClient.getPage(LOGIN_URL);  
    
        System.out.println(loginPage.asText());
        System.out.println(loginPage.getTitleText());
        System.out.println(loginPage.getTextContent());
    
        // 根据form的名字获取页面表单，也可以通过索引来获取：page.getForms().get(0)
        final HtmlForm form = loginPage.getFormByName("login_form");
    
        // 1.登录：用户名/密码
        HtmlTextInput userName = form.getInputByName("username"); 
        userName.setValueAttribute("YourName");
        HtmlPasswordInput userPwd = form.getInputByName("password");
        userPwd.setValueAttribute("YourPassword");
    
        final HtmlSubmitInput subBtn = (HtmlSubmitInput)loginPage.getByXPath("//input").get(2);
        System.out.println(subBtn.asText());
    
        final HtmlPage targetPage = subBtn.click();
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }

        // 2.打卡：找到打卡button打卡
        HtmlAnchor anchor = (HtmlAnchor) targetPage.getByXPath("//*[@id=\"clockIn\"]").get(0);
        HtmlPage finalPage = anchor.click();

        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        System.out.println(finalPage.asText());
    }
}

代码里有几处sleep3秒钟，是因为点击后，需要跳转时间，如果点击后，马不停蹄的走下去，页面还没有跳转完毕，后面的解析会失败。