spring 定时器的基本使用(maven+spring4)

闲话不说，直接上代码

pom文件

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>timer</groupId>
  <artifactId>timer</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>timer Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <properties>
      <!-- 制定maven用什么编码读取源码 -->
      <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
      <spring.version>4.0.5.RELEASE</spring.version>
  </properties>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <!-- spring核心包 -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
  </dependencies>
  
  <build>
    <finalName>timer</finalName>
  </build>
</project>

 

spring配置文件

 

<?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:context="http://www.springframework.org/schema/context"
    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/task http://www.springframework.org/schema/task/spring-task-4.0.xsd 
        ">
    <task:annotation-driven />    
    <bean id="singer" class="org.timer.main.Singer"/>
</beans>

java 类

package org.timer.main;

import java.text.SimpleDateFormat;
import java.util.Date;

import org.springframework.scheduling.annotation.Scheduled;

public class Singer {
    @Scheduled(cron="0 * * * * *")
    public void singing(){
        Date date=new Date();  
        SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");  
        System.out.println(sdf.format(date)); 
    }
}

测试类

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;


public class Test {
    public static void main(String[] args) {
        ApplicationContext context=new ClassPathXmlApplicationContext("config/app-config.xml");  
    }
}

这是一个整分提醒的一个定时器。希望能和大家一起学习