需求分析

需求：实现发请求、签到自动化，每天定时提交，邮件提示结果，告别手动。（使用应当合理合法！）
案板上有：1台vps,linux centos7+fiddler抓包工具+jar包。
实现：先用fiddler抓包工具抓取提交打卡是的HTTP请求，再分析每天不同的地方，仿照着利用Java编写脚本发送类似请求，安排到服务器上设置一个定时任务就完事了。（以前做过用python+appuim现在想想真的憨憨。。）

第一步：fiddler抓包

注：涉及隐私部分用xxxxxx替代

POST https:xxxxxxxxxxxx HTTP/1.1
Host: xxxxxxxxxxx
Connection: keep-alive
Content-Length: 1267
Accept: */*
Origin: xxxxxxxxxxx
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Linux; Android 9; MI 6X Build/PKQ1.180904.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.120 MQQBrowser/6.2 TBS/045409 Mobile Safari/537.36 MMWEBID/5700 MicroMessenger/7.0.18.1740(0x2700123B) Process/tools WeChat/arm64 NetType/WIFI Language/zh_CN ABI/arm64
Sec-Fetch-Mode: cors
Content-Type: application/json
Sec-Fetch-Site: same-origin
Referer: xxxxxxxxxxx
Accept-Encoding: gzip, deflate, br
Accept-Language: zh-CN,zh;q=0.9,en-US;q=0.8,en;q=0.7{"main":[{"TableName":"T_YQFKTJ","Data":[{"GUID":"xxxxxxxxxxx","TBRQ":"2020-11-01","TXJTSJ":"2020-11-01 00:07:26","XH":"xxxxxxxxxxx","XM":"xxx","SZXY":"xxxxx","BKYJS":"xxxxx","SZX":"","BKBJ":"xxxxx","YJSBJ":"","SS":"xxxxx","HQCS":"xxxxx","TBWD":"","KQWD":"xxxxxx","JYDD":"","SFWQZBLYYZDWQZ":"否","MQSTQK":"","SFWYSBLYYZDWYS":"否","YSJYDD":"","SFWJZGL":"未曾隔离","JZGLKSSJ":"","JZGLJSSJ":"","TNSFYQZBRYGMQJC":"否","QZBRJCDDSSX":"","TNSFZHBZZHTJHBYHB":"否","FHYY2":"","SFJRDH":"否","QTXCGSJ":"","SFDHZQTXQ":"否","JJTZYQGLSJ":"","SFWJJGL":"无","TNSFDDLKHZTJWZWLHYSD":"否","FHYY1":"","LQHZJKMQK":"已领取“绿码“","JSSTSFYJWRYJC":"否","JZGLDD":"","YSMQSTQK":"未缺课","JZBHBMTZGL":"未离校","JJGLYY":"未离杭","JZLXDH":"","JJGLKSSJ":"","JJGLJSSJ":"","JJLXDH":"","QZBRJCSJ":"","QZBRJCFS":"","DDHBRQ":"","LKHZTJHBRQ":"","JCRQ":"","DDWZRQ":"","ZZHZTJWZRQ":"","DDWLHZHYRQ":"","ZZHZTJWLRQ":"","FHSJ2":"","RZYHJCYSQTXZYSJJCYSSJ":"","RZYYSJC":""}],"TableId":"xxxxxxx"}],"sub":[]}

可以看到打卡提交了一个带着json的post请求，接下来需要编写Java代码实现模拟post提交json数据。

第二步：编写java提交post

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Properties;
import com.alibaba.fastjson.JSONObject;public class testdaka {private static final String USER = "私人xxxx"; // 发件人称号，同邮箱地址private static final String PASSWORD = "xxxxxx"; // 如果是qq邮箱可以使户端授权码，或者登录密码public static String mailmessage="";public static String searchmessage="";public static void search(String path,String data) {try {URL url = new URL(path);HttpURLConnection conn = (HttpURLConnection) url.openConnection();PrintWriter out = null;conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");conn.setRequestProperty("Host", "按需自查xxxxxx");conn.setRequestProperty("Connection", "keep-alive");conn.setRequestProperty("Accept", "*/*");conn.setRequestProperty("Origin", "xxxxx");conn.setRequestProperty("X-Requested-With", "XMLHttpRequest");conn.setRequestProperty("User-Agent", "Mozilla/5.0 (Linux; Android 9; MI 6X Build/PKQ1.180904.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.120 MQQBrowser/6.2 TBS/045409 Mobile Safari/537.36 MMWEBID/5700 MicroMessenger/7.0.18.1740(0x2700123B) Process/tools WeChat/arm64 NetType/WIFI Language/zh_CN ABI/arm64");conn.setRequestProperty("Sec-Fetch-Mode", "cors");conn.setRequestProperty("Sec-Fetch-Site", "same-origin");conn.setRequestProperty("Accept-Encoding", "gzip, deflate, br");conn.setRequestProperty("Accept-Language", "zh-CN,zh;q=0.9,en-US;q=0.8,en;q=0.7");conn.setDoOutput(true);conn.setDoInput(true);conn.setRequestMethod("POST");out = new PrintWriter(conn.getOutputStream()); out.print(data);out.flush();InputStream is = conn.getInputStream();BufferedReader br = new BufferedReader(new InputStreamReader(is));String str = "";while ((str = br.readLine()) != null) {str=new String(str.getBytes(),"UTF-8");searchmessage=str;//System.out.println(str);}is.close();conn.disconnect();} catch (Exception e) {e.printStackTrace();}}public static void send(String path,JSONObject data) {try {URL url = new URL(path);HttpURLConnection conn = (HttpURLConnection) url.openConnection();PrintWriter out = null;conn.setRequestProperty("Content-Type", "application/json;charset=UTF-8");conn.setRequestProperty("Host", "xxxxx");conn.setRequestProperty("Connection", "keep-alive");conn.setRequestProperty("Accept", "*/*");conn.setRequestProperty("Origin", "xxxxx");conn.setRequestProperty("X-Requested-With", "XMLHttpRequest");conn.setRequestProperty("User-Agent", "Mozilla/5.0 (Linux; Android 9; MI 6X Build/PKQ1.180904.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.120 MQQBrowser/6.2 TBS/045409 Mobile Safari/537.36 MMWEBID/5700 MicroMessenger/7.0.18.1740(0x2700123B) Process/tools WeChat/arm64 NetType/WIFI Language/zh_CN ABI/arm64");conn.setRequestProperty("Sec-Fetch-Mode", "cors");conn.setRequestProperty("Sec-Fetch-Site", "same-origin");conn.setRequestProperty("Accept-Encoding", "gzip, deflate, br");conn.setRequestProperty("Accept-Language", "zh-CN,zh;q=0.9,en-US;q=0.8,en;q=0.7");conn.setDoOutput(true);conn.setDoInput(true);conn.setRequestMethod("POST");out = new PrintWriter(conn.getOutputStream()); out.print(data.toJSONString());out.flush();InputStream is = conn.getInputStream();BufferedReader br = new BufferedReader(new InputStreamReader(is));String str = "";while ((str = br.readLine()) != null) {str=new String(str.getBytes(),"UTF-8");mailmessage=str;}is.close();conn.disconnect();} catch (Exception e) {e.printStackTrace();}}//百度的邮件工具类，用到activation-1.1.jar和javax.mail-1.6.0.jarpublic static boolean sendMail(String to, String text, String title){try {final Properties props = new Properties();props.put("mail.smtp.auth", "true");// props.put("mail.smtp.host", "smtp.qq.com");props.put("mail.smtp.host", "smtp.163.com");// 发件人的账号props.put("mail.user", USER);//发件人的密码props.put("mail.password", PASSWORD);// 构建授权信息，用于进行SMTP进行身份验证Authenticator authenticator = new Authenticator() {@Overrideprotected PasswordAuthentication getPasswordAuthentication() {// 用户名、密码String userName = props.getProperty("mail.user");String password = props.getProperty("mail.password");return new PasswordAuthentication(userName, password);}};// 使用环境属性和授权信息，创建邮件会话Session mailSession = Session.getInstance(props, authenticator);// 创建邮件消息MimeMessage message = new MimeMessage(mailSession);// 设置发件人String username = props.getProperty("mail.user");InternetAddress form = new InternetAddress(username);message.setFrom(form);// 设置收件人InternetAddress toAddress = new InternetAddress(to);message.setRecipient(Message.RecipientType.TO, toAddress);// 设置邮件标题message.setSubject(title);// 设置邮件的内容体message.setContent(text, "text/html;charset=UTF-8");// 发送邮件Transport.send(message);return true;}catch (Exception e){e.printStackTrace();}return false;}public static void main(String[] args) {//先打卡Date date = new Date();DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");String format = dateFormat.format(date);//System.out.println(format);//每日必改"TBRQ":"2020-11-01","TXJTSJ":"2020-11-01 00:07:26",// String TBRQ = "2020-11-01";String TBRQ = format;String TXJTSJ = format+" 00:08:26";String GUID = "xxxxx";String XH="xxxxx";String XM= "xxxxx";String BKBJ = "xxxxxx";String LoginUserID ="xxxxxxx";String strjson = "{\"main\":[{\"TableName\":\"T_YQFKTJ\",\"Data\":[{\"GUID\":\""+GUID+"\",\"TBRQ\":\""+TBRQ+"\",\"TXJTSJ\":\""+TXJTSJ+"\",\"XH\":\""+XH+"\",\"XM\":\""+XM+"\",\"SZXY\":\"xxxxxxx\",\"BKYJS\":\"xxxx\",\"SZX\":\"\",\"BKBJ\":\""+BKBJ+"\",\"YJSBJ\":\"\",\"SS\":\"xxxxx\",\"HQCS\":\"xxxxxx\",\"TBWD\":\"\",\"KQWD\":\"xxxxxx\",\"JYDD\":\"\",\"SFWQZBLYYZDWQZ\":\"否\",\"MQSTQK\":\"\",\"SFWYSBLYYZDWYS\":\"否\",\"YSJYDD\":\"\",\"SFWJZGL\":\"未曾隔离\",\"JZGLKSSJ\":\"\",\"JZGLJSSJ\":\"\",\"TNSFYQZBRYGMQJC\":\"否\",\"QZBRJCDDSSX\":\"\",\"TNSFZHBZZHTJHBYHB\":\"否\",\"FHYY2\":\"\",\"SFJRDH\":\"否\",\"QTXCGSJ\":\"\",\"SFDHZQTXQ\":\"否\",\"JJTZYQGLSJ\":\"\",\"SFWJJGL\":\"无\",\"TNSFDDLKHZTJWZWLHYSD\":\"否\",\"FHYY1\":\"\",\"LQHZJKMQK\":\"已领取“绿码“\",\"JSSTSFYJWRYJC\":\"否\",\"JZGLDD\":\"\",\"YSMQSTQK\":\"未缺课\",\"JZBHBMTZGL\":\"未离校\",\"JJGLYY\":\"未离杭\",\"JZLXDH\":\"\",\"JJGLKSSJ\":\"\",\"JJGLJSSJ\":\"\",\"JJLXDH\":\"\",\"QZBRJCSJ\":\"\",\"QZBRJCFS\":\"\",\"DDHBRQ\":\"\",\"LKHZTJHBRQ\":\"\",\"JCRQ\":\"\",\"DDWZRQ\":\"\",\"ZZHZTJWZRQ\":\"\",\"DDWLHZHYRQ\":\"\",\"ZZHZTJWLRQ\":\"\",\"FHSJ2\":\"\",\"RZYHJCYSQTXZYSJJCYSSJ\":\"\",\"RZYYSJC\":\"\"}],\"TableId\":\"xxxxxx\"}],\"sub\":[],\"LoginUserID\":\""+LoginUserID+"\",\"GUID\":\""+GUID+"\",\"FORMID\":\"xxxxxxxxxxx\"}";//用到了fastjson-1.2.74.jarJSONObject jsonobj = JSONObject.parseObject(strjson);try {send("抓包到的网址",jsonobj);} catch (Exception e) {//防止偶然的连接resetsend("抓包到的网址",jsonobj);}//再判断try {search("抓包到的网址，查询可能带日期自行更改");} catch (Exception e) {search("抓包到的网址，查询可能带日期自行更改");}//发邮件String sendmail ="打卡的结果："+ mailmessage+"\r\n"+"打卡后确认的结果："+searchmessage;//System.out.println(sendmail);sendMail("xxxxx@qq.com", sendmail, "打卡结果！");}}

第三步：部署到服务器上定时运行

①确认Linux环境。

确保系统时间为北京时间。
确保java环境配置完毕。
确保xshell连接正常。

②上传所需jar和写好的Java文件到Linux

用到的jar包有

 activation-1.1.jar，fastjson-1.2.74.jar，javax.mail-1.6.0.jar，

以及写好的程序daka.java

在xshell连接下用rz命令上传到目录

 /root/mylearn/webapp/daka

③操作权限解决：

修改使用文件夹的操作权限

 sudo chmod -R 777 /root/mylearn/webapp/daka

④Linux下带jar包编译与运行Java程序

jar包之间用:隔开，最后也要加。

javac -cp /root/mylearn/webapp/daka/libs/activation-1.1.jar:/root/mylearn/webapp/daka/libs/fastjson-1.2.74.jar:/root/mylearn/webapp/daka/libs/javax.mail-1.6.0.jar: /root/mylearn/webapp/daka/daka.java

得到class文件后，运行如下。

java -cp /root/mylearn/webapp/daka/libs/activation-1.1.jar:/root/mylearn/webapp/daka/libs/fastjson-1.2.74.jar:/root/mylearn/webapp/daka/libs/javax.mail-1.6.0.jar: daka

⑤写sh脚本并且配置定时运行

写sh脚本

vi daka.sh

按i进入编辑，粘贴如下，：x保存退出。

#!/bin/bash
cd /root/mylearn/webapp/daka
java -cp /root/mylearn/webapp/daka/libs/activation-1.1.jar:/root/mylearn/webapp/daka/libs/fastjson-1.2.74.jar:/root/mylearn/webapp/daka/libs/javax.mail-1.6.0.jar: daka

配置定时

vi /etc/crontab#改类似定时，这里设置00：10分打卡10 00 * * * root /root/mylearn/webapp/daka/daka.sh

装载

 crontab /etc/crontab

重启定时服务

systemctl enable crond.service #开启启动
systemctl restart crond.service #重启服务

结语

前几个月暑假无聊用python+appuim弄过一个自己打卡的脚本，就是滚屏幕模拟点击的那种。想把它部署到服务器，发现不现实，后来想到他打卡不就是个提交表单嘛，不就是个post嘛。所以搞了个这个，以后不用自己打卡了嘿嘿嘿！

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