SpringBoot基于数据库的定时任务统一管理

定时任务1

import lombok.extern.slf4j.Slf4j;

/**
 * @author Created by niugang on 2019/12/24/15:29
 */
@Slf4j
public class TaskTest {

    public void task1() {
        log.info("反射调用测试[一]类");
    }
}

定时任务2

import lombok.extern.slf4j.Slf4j;

/**
 * @author Created by niugang on 2019/12/24/15:54
 */
@Slf4j
public class TaskTest2 {
    public void task2() {
        log.info("反射调用测试[二]类");
    }
}

配置类

import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.SchedulingConfigurer;
import org.springframework.scheduling.config.CronTask;
import org.springframework.scheduling.config.ScheduledTask;
import org.springframework.scheduling.config.ScheduledTaskRegistrar;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;

/**
 * @author Created by niugang on 2019/12/24/15:19
 */
@Configuration
@EnableScheduling
@Slf4j
public class CompleteScheduleConfig implements SchedulingConfigurer {

    private static List<TaskRecord> taskRecordList = new ArrayList<>();

    /*
     *模拟数据库存储
     */
    static {
        TaskRecord taskRecord = new TaskRecord();
        taskRecord.setExecuteMehod("task1");
        taskRecord.setClassPath("com.example.demo.pojo.TaskTest");
        taskRecord.setCron("0/5 * * * * ?");
        taskRecordList.add(taskRecord);

        TaskRecord taskRecord2 = new TaskRecord();
        taskRecord2.setExecuteMehod("task2");
        taskRecord2.setClassPath("com.example.demo.pojo.TaskTest2");
        taskRecord2.setCron("0/10 * * * * ?");
        taskRecordList.add(taskRecord2);
    }

    @Override
    public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
        // taskRegistrar.addCronTask(() -> log.info("执行定时任务,{}", LocalDateTime.now()), "0/5 * * * * ?");
/*        taskRegistrar.addCronTask(new Runnable() {
            @Override
            public void run() {
                try {
                    Class<?> aClass = Class.forName("com.example.demo.pojo.TaskTest");
                    Object o = aClass.newInstance();
                    Method[] declaredMethods = aClass.getDeclaredMethods();
                    for (Method declaredMethod : declaredMethods) {
                        declaredMethod.invoke(o);
                        // log.info("方法名称:{}",declaredMethod.getName());
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }, "0/5 * * * * ?");*/

        for (TaskRecord taskRecord : taskRecordList) {
            String classPath = taskRecord.getClassPath();
            String cron = taskRecord.getCron();
            String executeMehod = taskRecord.getExecuteMehod();
            Runnable runnable = () -> {
                Class<?> aClass;
                try {
                    aClass = Class.forName(classPath);
                    Object o = aClass.newInstance();
                    Method[] declaredMethods = aClass.getDeclaredMethods();
                    for (Method declaredMethod : declaredMethods) {
                        if (declaredMethod.getName().equals(executeMehod)) {
                            /// log.info("方法名称:{}",declaredMethod.getName());
                            declaredMethod.invoke(o);
                        }
                    }
                } catch (Exception e1) {
                    e1.printStackTrace();
                }
            };
            CronTask cronTask = new CronTask(runnable, cron);
            ScheduledTask scheduledTask = taskRegistrar.scheduleCronTask(cronTask);
            //scheduledTask.cancel();  取消定时任务

        }

    }

    @Data
    private static class TaskRecord {

        private String classPath;

        private String executeMehod;

        private String cron;

        //可以在增加一个type 执行其他类型的定时任务
    }
}

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