（微信定时发送消息）一个java文件，完成可配置的微信定时任务

需求来源

当我们再日常工作中,需要每日定时的发送群消息,时间太早的话不想起来,想着可以用java显示定时发送消息的任务.在睡梦中让程序帮我们定时发送消息

功能介绍

定时生日祝福、每日早安、晚安问候

1. 检测微信是否再后台运行
2. 指定每天多个时间段发送可配置的消息
3. 发送图片
4. 每个时间段给多个人发送多个消息
5. 设置间隔时间(如:两天发一次,一天发一次,每秒发一次)

代码如下

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.datatransfer.*;
import java.awt.event.KeyEvent;
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.util.List;
import java.util.*;

/**
 * @Author: xu
 * @Description: 开启定时任务，指定时间，间隔给微信好友发送文本或图片
 * @Date: 2021/12/20 20:28
 */
public class TimerTask {
//    设置定时任务区间,每隔一天发一次
    private static final Long SECTION = (long) (24 * 60 * 60 * 1000);

    public static void main(String[] args) throws Exception {
        System.out.println("任务执行时间，请保证微信在登录状态并为最小化...");
        int weChat = queryProcessCount("WeChat");
        if (weChat<=0){
            System.err.println("请登陆微信后再尝试运行");
            return;
        }
        int year = LocalDateTime.now().getYear();
        int month = LocalDateTime.now().getMonthValue();
        int day = LocalDateTime.now().getDayOfMonth();     //任务默认从今天开始
        List<String> resource = getResouce();
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
//        遍历某个时间段需要做的事情
        for (String todo : resource) {
            String[] item = todo.split(" ");
            String formatData = year+"-"+month+"-"+day+" "+item[0]+":00";
            Date firstData = simpleDateFormat.parse(formatData);
            List<Map<String,String>> sendData = new ArrayList<>();
            String[] sends = todo.split(";");
            int i = 0;
            for (String send : sends) {
                Map<String,String> map = new HashMap<>();
                List<String> strings = Arrays.asList(send.split(" "));
                if (i==0){
                    map.put("receive",strings.get(1));
                    map.put("content",strings.get(2));
                }else {
                    map.put("receive",strings.get(0));
                    map.put("content",strings.get(1));
                }
                sendData.add(map);
                i++;
            }
            createTask(firstData,sendData);
        }
    }

    private static int queryProcessCount(String processName) throws IOException {
        int count = 0;
        Runtime runtime = Runtime.getRuntime();
        List<String> tasklist = new ArrayList<>();
        Process process = runtime.exec("tasklist");
        BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));
        String s;
        while ((s = br.readLine()) != null) {
            if ("".equals(s)) {
                continue;
            }
            tasklist.add(s);
        }
        for (String taskName : tasklist) {
            if (taskName.contains(processName)){
                count++;
            }
        }
        return count;
    }
    private static void createTask(Date firstData,List<Map<String,String>> sendData){
        if (firstData.getTime()-System.currentTimeMillis()<0){
            //        让错过的时间延后配置的间隔时间执行
            firstData = new Date(firstData.getTime()+SECTION);
        }
        new Timer().scheduleAtFixedRate(new java.util.TimerTask() {
            @Override
            public synchronized void run() {
                try {
                    openWeChat();
                    for (Map<String, String> sendDatum : sendData) {
                        sendMsg(sendDatum.get("receive"),sendDatum.get("content"));
                        Thread.sleep(500);
                    }
                    closeWeChat();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        },firstData.getTime() - System.currentTimeMillis(),SECTION);
    }

    public static void setSysClipboardFile(String imageUrl) throws IOException {
        Clipboard clip = Toolkit.getDefaultToolkit().getSystemClipboard();
        if (imageUrl.contains("\\")){
            imageUrl = imageUrl.replace("\\","/");
        }
        imageUrl = imageUrl.replace("img(","");
        imageUrl = imageUrl.substring(0, imageUrl.length() - 1);
        Image image = ImageIO.read(new File(imageUrl));
        Transferable trans = new Transferable() {
            @Override
            public Object getTransferData(DataFlavor flavor)
                    throws UnsupportedFlavorException {
                if (isDataFlavorSupported(flavor)) {
                    return image;
                }
                throw new UnsupportedFlavorException(flavor);
            }

            @Override
            public DataFlavor[] getTransferDataFlavors() {
                return new DataFlavor[] { DataFlavor.imageFlavor };
            }

            @Override
            public boolean isDataFlavorSupported(DataFlavor flavor) {
                return DataFlavor.imageFlavor.equals(flavor);
            }
        };
        clip.setContents(trans, null);
    }

    public static void setSysClipboardText(String writeMe) {
        Clipboard clip = Toolkit.getDefaultToolkit().getSystemClipboard();
        Transferable tText = new StringSelection(writeMe);
        clip.setContents(tText, null);
    }

    private static void openWeChat() throws AWTException {
        Robot robot = RobotManager.getInstance();
//        robot.keyPress(KeyEvent.VK_WINDOWS);
//        robot.keyPress(KeyEvent.VK_D);
//        robot.keyRelease(KeyEvent.VK_WINDOWS);
//        robot.keyRelease(KeyEvent.VK_D);
//        先使用win+D快捷键保证微信为最小化状态，再使用微信默认快捷键打开微信nihao2
        robot.keyPress(KeyEvent.VK_CONTROL);
        robot.keyPress(KeyEvent.VK_ALT);
        robot.keyPress(KeyEvent.VK_W);
        robot.keyRelease(KeyEvent.VK_CONTROL);
        robot.keyRelease(KeyEvent.VK_ALT);
        robot.keyRelease(KeyEvent.VK_W);
        robot.delay(100);
    }

    /**
     * 发送消息
     * @param receive 接收消息者
     * @param msg 消息内容
     */
    private static void sendMsg(String receive,String msg) throws Exception {
        Robot robot = RobotManager.getInstance();
        robot.keyPress(KeyEvent.VK_CONTROL);
        robot.keyPress(KeyEvent.VK_F);
        robot.keyRelease(KeyEvent.VK_CONTROL);
        robot.keyRelease(KeyEvent.VK_F);
        inputEnter(receive);
        inputEnter(msg);
    }

    private static void closeWeChat() throws AWTException {
        Robot robot = RobotManager.getInstance();
        robot.keyPress(KeyEvent.VK_CONTROL);
        robot.keyPress(KeyEvent.VK_ALT);
        robot.keyPress(KeyEvent.VK_W);
        robot.keyRelease(KeyEvent.VK_CONTROL);
        robot.keyRelease(KeyEvent.VK_ALT);
        robot.keyRelease(KeyEvent.VK_W);
    }

    private static void inputEnter(String msg) throws Exception {
        Robot robot = RobotManager.getInstance();
        if (msg.contains("img(")){
            setSysClipboardFile(msg);
        }else {
            setSysClipboardText(msg);
        }
        robot.keyPress(KeyEvent.VK_CONTROL);
        robot.keyPress(KeyEvent.VK_V);
        robot.keyRelease(KeyEvent.VK_CONTROL);
        robot.keyRelease(KeyEvent.VK_V);
        robot.delay(1000);
        robot.keyPress(KeyEvent.VK_ENTER);
        robot.keyRelease(KeyEvent.VK_ENTER);
        robot.delay(500);
    }

    public static class RobotManager{
        private static Robot robot;

        public static Robot getInstance() throws AWTException {
            if (robot==null){
                robot = new Robot();
            }
            return robot;
        }
    }

    public static List<String> getResouce() throws Exception {
        StringBuilder result = new StringBuilder();
        //读取桌面Txt文件,桌面路径与文件名根据需要修改
        FileReader reader = new FileReader("C:\\Users\\xjt\\Desktop\\sendmag.txt", StandardCharsets.UTF_8);
        BufferedReader br = new BufferedReader(reader);
        String temp;
        while((temp = br.readLine())!=null){//使用readLine方法，一次读一行
            result.append(temp);
        }
        br.close();
        reader.close();
        return Arrays.asList(result.toString().split("\\*"));
    }
}

配置信息

需要用到的桌面文本文件配置信息内容

11:14 接收者名称 发送内容;xjt(接收者名称) img(C:\Users\Hasee\Desktop\checkcode.jpg);文件传输助手 内容*
11:15 xjt nihao2*
11:16 xjt nihao3

配置文件分析

配置符号由代码中定义。可根据需要进行修改优化

*:当前时间运行任务结束符，最后一个任务不需要结束符
;:每个任务的间隔符
空格:时间与接受者名称与内容的分隔符
img():当内容为图片时指定的图片本地绝对地址

使用方式

1. 复制上述代码内容为一个名为TimerTask.java文件
2. 修改文件中，当前环境配置文件指定地址

执行编译运行命令

编译

javac -encoding UTF-8 TimerTask.java

开始运行

java TimerTask

或者直接在ide开发工具中运行