spring boot中简单定时任务

末蓝、 2023-09-27 13:04 130阅读 0赞

**目录**

1.使用方法

(1)启动类中开启定时任务

(2)创建定时任务，并设定定时任务的执行时间

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### 1.使用方法 ###

#### (1)启动类中开启定时任务 ####

package com.example.demo;
    
    import com.example.demo.domain.Student;
    import com.example.demo.service.IBmsBillMemoService;
    import com.example.demo.service.impl.BmsBillMemoServiceImpl;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.boot.context.properties.EnableConfigurationProperties;
    import org.springframework.context.ConfigurableApplicationContext;
    import org.springframework.context.annotation.Bean;
    import org.springframework.scheduling.annotation.EnableScheduling;
    import org.springframework.web.client.RestTemplate;
    
    @SpringBootApplication
    //开启定时任务功能
    @EnableScheduling
    @EnableConfigurationProperties(Student.class)
    
    public class DemoApplication {
    
        public static void main(String[] args) {
            ConfigurableApplicationContext ctx = SpringApplication.run(DemoApplication.class, args);
            Object bean = ctx.getBean("bmsBillMemoServiceImpl");
            System.out.println(bean);
            IBmsBillMemoService bean1 = ctx.getBean(IBmsBillMemoService.class);
            System.out.println(bean1);
            BmsBillMemoServiceImpl bean2 = ctx.getBean("bmsBillMemoServiceImpl", BmsBillMemoServiceImpl.class);
            System.out.println(bean2);
        }
    
    }

#### (2)创建定时任务，并设定定时任务的执行时间 ####

package com.example.demo.quartz;
    
    import org.springframework.scheduling.annotation.Scheduled;
    import org.springframework.stereotype.Component;
    
    /**
     * @author linaibo
     * @version 1.0
     * Create by 2022/12/3 14:22
     */
    @Component
    public class Task {
        @Scheduled(cron = "0/1 * * * * ?")
        public void print(){
            System.out.println("开始执行");
        }
    }

2.总结

在实际的项目开发中，除了使用上面的这种方式，常见的还有xxljob等