SSM的定时器基于xml和注解两种方式

1.注解方式

springmvc.xml配置的beans头部加上

xmlns:task="http://www.springframework.org/schema/task"

http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task-3.2.xsd

<task:annotation-driven/>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:task="http://www.springframework.org/schema/task"
	xsi:schemaLocation="http://www.springframework.org/schema/beans  
                        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd  
                        http://www.springframework.org/schema/context  
                        http://www.springframework.org/schema/context/spring-context-4.0.xsd  
                        http://www.springframework.org/schema/mvc  
                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
                        http://www.springframework.org/schema/task
						http://www.springframework.org/schema/task/spring-task-4.0.xsd">



@Component
public class TimerTask {
	
	@Scheduled(cron = "0 0 4 * * ?") // 每天凌晨四点执行
	public void test1() {
		System.out.println("定时器任务：开始........................");
		
	}
	
}

2.xml方式

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:task="http://www.springframework.org/schema/task"
	xsi:schemaLocation="http://www.springframework.org/schema/beans  
                        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd  
                        http://www.springframework.org/schema/context  
                        http://www.springframework.org/schema/context/spring-context-4.0.xsd  
                        http://www.springframework.org/schema/mvc  
                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
                        http://www.springframework.org/schema/task
						http://www.springframework.org/schema/task/spring-task-4.0.xsd">


	<!-- ===================================== Spring3自带日志定时任务  ===================================== -->
	
 	<!-- 日志任务配置：task任务扫描注解 -->
	<context:annotation-config />  
	
	 <!-- 配置任务线性池 -->  
    <task:executor id="executor" pool-size="3" />  
    <task:scheduler id="scheduler" pool-size="3" />  
    <!-- 启用annotation方式 -->  
    <task:annotation-driven scheduler="scheduler"  
        executor="executor" proxy-target-class="true" />
	
	<!-- 定时任务 -->  
    <task:scheduled-tasks>  
    
        <!-- 附件OCR识别：定时识别附件上传pdf -->
        <!-- 注意：ref引用的开头必须小写，否则找不到这个bean -->
        <!-- http://qqe2.com/cron 这个网站可以自动生成你所需要的事件-->
        <task:scheduled ref="attachmentService" method="OCRConversion" cron="* 2 * * * ?" />  

    </task:scheduled-tasks>
    


	
</beans>

@Service
public class Service{

	/**
	 * 定时任务
	 */
    public void OCRConversion() throws Exception{
	   
			System.out.println("定时器任务(OCR转换)：...........任务开始............");
    }
	
}

来源：CSDN

作者：weixin_37906108

链接：https://blog.csdn.net/weixin_37906108/article/details/103119655

标签

xml语言

ssm