后端项目开发：实现定时任务功能

素颜马尾好姑娘i 2024-03-23 14:25 7阅读 0赞

使用springboot整合quartz实现定时任务功能。  
一、在pom.xml中添加Quartz和Spring Boot Starter的依赖

<dependency>
        <groupId>org.quartz-scheduler</groupId>
        <artifactId>quartz</artifactId>
        <version>2.3.2</version>
    </dependency>
    
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-quartz</artifactId>
    </dependency>

二、创建Job  
创建一个继承自QuartzJobBean的Job类，实现executeInternal方法：

@Component
    public class MyJob extends QuartzJobBean {
        
    
        @Override
        protected void executeInternal(JobExecutionContext jobExecutionContext) throws JobExecutionException {
        
            // 执行任务
        }
    }

三、创建Trigger  
创建一个Trigger类，指定Job的执行策略：

@Configuration
    public class QuartzConfig {
        
    
        @Bean
        public JobDetail myJobDetail() {
        
            return JobBuilder.newJob(MyJob.class).withIdentity("myJob").storeDurably().build();
        }
    
        @Bean
        public Trigger myTrigger() {
        
            SimpleScheduleBuilder scheduleBuilder = SimpleScheduleBuilder.simpleSchedule()
                    .withIntervalInSeconds(10).repeatForever();
            return TriggerBuilder.newTrigger().forJob(myJobDetail())
                    .withIdentity("myTrigger").withSchedule(scheduleBuilder).build();
        }
    }

四、启动Quartz  
在Spring Boot的启动类中添加@EnableScheduling注解，启动Quartz：

@SpringBootApplication
    @EnableScheduling
    public class MyApp {
        
    
        public static void main(String[] args) {
        
            SpringApplication.run(MyApp.class, args);
        }
    }