说明
本实例可以监控聚划算的抢购button，在聚划算整点聚的时间到达时自己主动弹开页面（URL自定义）。
能够自己定义监控持续分钟数，同一时候还能够通过多线程加快刷新速度。
源代码
package com.itechzero.pricemonitor; import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URI;
import java.net.URL;
import java.net.URLConnection;
import java.text.SimpleDateFormat;
import java.util.Date; /**
* PriceMonitor.java
*
* @author Techzero
* @Email techzero@163.com
* @Time 2014-5-21 下午1:24:30
*/
class MyThread extends Thread {
public void run() {
try {
// 此处參数为监控持续分钟数
PriceMonitor.monitorButton(10);
} catch (Exception e) {
e.printStackTrace();
}
}
}; public class PriceMonitor {
// 监控的商品URL
private static String URL = "http://detail.ju.taobao.com/home.htm? spm=608.2214381.3.1.AdPEjn&item_id=38260927591&id=10000002781939"; // 监视按钮
public static void monitorButton(int lastMinute) {
int nowMinute = Integer.parseInt(new SimpleDateFormat("mm").format(new Date()));
int endMinute = Integer.parseInt(new SimpleDateFormat("mm").format(new Date())) + lastMinute;
while (nowMinute < endMinute) {
nowMinute = Integer.parseInt(new SimpleDateFormat("mm").format(new Date()));
String result[] = getCurrentButtonAndForm(URL, "gb2312").split(",");
// 当前按钮状态
String currentButton = result[0];
// 立即抢 表单
//String form = result[1];
String nowTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());
System.out.println(nowTime + " - 如今按钮是 " + currentButton); if (currentButton == "立即抢" || currentButton.equals("立即抢") || currentButton == "还有机会" || currentButton.equals("还有机会")) {
System.out.println("赶紧下单！ ");
try {
java.awt.Desktop.getDesktop().browse(new URI(URL));
} catch (Exception e) {
e.printStackTrace();
}
//doPost(form);
break;
} else if (currentButton == "卖光了" || currentButton.equals("卖光了") || currentButton.equals("已结束") || currentButton.equals("已结束")) {
System.out.println("下次再试吧。");
break;
} else {
System.out.println("还没開始呢，再等等吧！ ");
}
}
} // 获取当前按钮状态
public static String getCurrentButtonAndForm(String url, String encoding) {
if (url == null || "".equals(url.trim()))
return null;
String buttonState = "";
StringBuffer content = new StringBuffer();
boolean formFlag = false;
try {
// 新建URL对象
URL u = new URL(url);
InputStream is = new BufferedInputStream(u.openStream());
InputStreamReader theHTML = new InputStreamReader(is, encoding != null ? encoding : "gb2312");
BufferedReader br = new BufferedReader(theHTML);
String s = "";
while ((s = br.readLine()) != null) {
if (s.indexOf("<input type=\"submit\" class=\"buyaction J_BuySubmit\" title=\"立即抢\" value=\"立即抢\"/>") != -1) {
buttonState = "立即抢";
} else if (s.indexOf("<a href=\"#\" class=\"extra notice J_BuyButtonSub\">开团提醒</a>") != -1) {
buttonState = "开团提醒";
} else if (s.indexOf("<div class=\"main-box chance \">") != -1) {
buttonState = "还有机会";
} else if (s.indexOf("<span class=\"out floatright\">卖光了...</span>") != -1) {
buttonState = "卖光了";
} else if (s.indexOf("<span class=\"out floatright\">已结束...</span>") != -1) {
buttonState = "已结束";
}
if (s.indexOf("<form class=\"J_BuySubForm\" data-ccb=\"0\" data-ques=\"0\" action") != -1) {
content.append(s + "\r\n");
formFlag = true;
}
if (formFlag == true) {
if (s.indexOf("<input name=\'_tb_token_\' type=\'hidden\' value") != -1) {
content.append(s + "\r\n");
}
if (s.indexOf("<input type=\"hidden\" name=\"_input_charset\" value") != -1) {
content.append(s + "\r\n");
}
if (s.indexOf("<input type=\"hidden\" name=\"itemId\" value") != -1) {
content.append(s + "\r\n");
}
if (s.indexOf("<input type=\"hidden\" name=\"id\" value") != -1) {
content.append(s + "\r\n");
}
if (s.indexOf("<input type=\"hidden\" name=\"tgType\" value") != -1) {
content.append(s + "\r\n");
}
if (s.indexOf("<input type=\"submit\" class=\"buyaction J_BuySubmit\"") != -1) {
content.append(s + "\r\n");
}
if (s.indexOf("</form>") != -1) {
content.append(s + "\r\n");
}
}
if (s.indexOf("<div class=\"time-banner\">") != -1) {
break;
}
}
br.close();
} catch (Exception e) {
System.err.println(e);
return "Open URL Error";
}
return buttonState + "," + content;
} // 提交表单
public static String doPost(String form) {
StringBuffer content = new StringBuffer();
try {
URLConnection connection = new URL(URL).openConnection();
connection.setDoOutput(true);
OutputStreamWriter os = new OutputStreamWriter(connection.getOutputStream(), "UTF-8");
os.write(form);
os.flush();
os.close();
InputStream is = connection.getInputStream();
InputStreamReader theHTML = new InputStreamReader(is);
BufferedReader br = new BufferedReader(theHTML);
String s = "";
while ((s = br.readLine()) != null) {
content.append(s + "\r\n");
}
} catch (Exception e) {
e.printStackTrace();
}
// 返回提交表单后返回的页面内容
return content.toString();
} // 登录
public static void doLogin(String username, String password) {
String form = "<form id=\"J_StaticForm\" action=\"https://login.taobao.com/member/login.jhtml\" method=\"post\" autocomplete=\"on\"><input type=\"text\" name=\"TPL_username\" id=\"TPL_username_1\" value=\"" + username + "\"><input type=\"password\" name=\"TPL_password\" id=\"TPL_password_1\" value=\"" + password + "\"><input type=\"hidden\" id=\"J_TPL_redirect_url\" name=\"TPL_redirect_url\" value=\"http://www.taobao.com/? spm=a2107.1.1000340.1.AL2Mpn\"><button type=\"submit\" id=\"J_SubmitStatic\">登 录</button></form>";
doPost(form);
} public static void main(String[] args) {
//doLogin();
// new MyThread().start();
// new MyThread().start();
// new MyThread().start();
// new MyThread().start();
// new MyThread().start();
// new MyThread().start();
// new MyThread().start();
new MyThread().start();
}
}