SSM 下的定時調度任務 quartz 技術 和 @Scheduled 的兩種方法

@Scheduled適用與監聽任務較少的，而Quartz適合較多的，為確保可伸縮性，Quartz采用了基於多線程的架構。啟動時，框架初始化一套worker線程，這套線程被調度器用來執行預定的作業。這就是Quartz怎樣能並發運行多個作業的原理。Quartz依賴一套松耦合的線程池管理部件來管理線程環境。 

定時任務調度

一：基於spring 自帶的注解調度

1 首先引入

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-context-support</artifactId>

<version>${spring.version}</version>

</dependency>

 

2  然后進行配置文件配置

<?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:task="http://www.springframework.org/schema/task"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
      http://www.springframework.org/schema/task
      http://www.springframework.org/schema/task/spring-task.xsd
      http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd ">

    <!--spring 自帶的定時器-->
    <task:annotation-driven/>
    <context:annotation-config/>
    <bean  class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>
    <context:component-scan base-package="com.food.wodo.springquartz"/><!-- 下面XzcfYjTask類在的包名 -->

 </beans>

然后在spring 中引入

 

3基於注解任務類編寫  要有3個注解@Component  @EnableSceduling  @Scheduling    cron 為設置時間， 0 為每   *  任意   ？  未指定

import com.food.wodo.dao.XzcfYjDao;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

import java.text.SimpleDateFormat;
import java.util.*;

@Component
@EnableScheduling
public class XzcfYjTask {

    @Autowired
    private XzcfYjDao xzcfYjDao;

    @Scheduled(cron = "0 0/5 * * * ?")
    public void sendMessage(){
        
    }


}

 二：quartz 技術的定時調度任務

1 首先引入

    <!--定時調度quartz技術-->
    <dependency>
      <groupId>org.quartz-scheduler</groupId>
      <artifactId>quartz</artifactId>
      <version>2.2.2</version>
    </dependency>
    <dependency>
      <groupId>org.quartz-scheduler</groupId>
      <artifactId>quartz-jobs</artifactId>
      <version>2.2.2</version>
    </dependency>

 日志包

<!--log4j && slf4j-->
 90         <dependency>
 91             <groupId>org.slf4j</groupId>
 92             <artifactId>slf4j-api</artifactId>
 93             <version>${slf4j.version}</version>
 94         </dependency>
 95         <dependency>
 96             <groupId>org.slf4j</groupId>
 97             <artifactId>slf4j-log4j12</artifactId>
 98             <version>${slf4j.version}</version>
 99         </dependency>
100         <dependency>
101             <groupId>org.slf4j</groupId>
102             <artifactId>jcl-over-slf4j</artifactId>
103             <version>${slf4j.version}</version>
104             <scope>runtime</scope>
105         </dependency>

 

 

 2  然后進行配置文件配置

<?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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd ">

    <!--掃描quartz類-->
    <context:component-scan base-package="com.food.*.quartz"/>

    <bean id="SpjyxkzdqYjJob" class="org.springframework.scheduling.quartz.JobDetailFactoryBean">
        <property name="jobClass" value="com.food.wodo.quartz.SpjyxkzdqYjJob"/>
        <property name="jobDataAsMap">
            <map>
                <entry key="timeout" value="5"/>
            </map>
        </property>
    </bean>

    <!-- ======================== 調度觸發器 ======================== -->
    <bean id="cronTriggerBean" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
        <property name="jobDetail" ref="SpjyxkzdqYjJob"></property>
        <property name="cronExpression" value="0 0/5 * * * ?"></property>
    </bean>

    <!-- ======================== 調度工廠 ======================== -->
    <bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="jobFactory" ref="jobFactory" />
        <property name="triggers">
            <list>
                <ref bean="cronTriggerBean" />
            </list>
        </property>
    </bean>

</beans>

 

3 類的創建

 <!-- ======================== 調度工廠 ======================== -->

package com.food.wodo.quartz;


import org.quartz.spi.TriggerFiredBundle;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.scheduling.quartz.AdaptableJobFactory;
import org.springframework.stereotype.Service;

@Service("jobFactory")
public class JobFactory extends AdaptableJobFactory {
    @Autowired
    private AutowireCapableBeanFactory autowireCapableBeanFactory;

    @Override
    protected Object createJobInstance(TriggerFiredBundle bundle) throws Exception {
       Object  jobInstance=  super.createJobInstance(bundle);
        autowireCapableBeanFactory.autowireBean(jobInstance);
        return jobInstance;
    }

}

quartz類-

package com.food.wodo.quartz;

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

import java.util.Date;

public class SpjyxkzdqYjJob implements Job {

    @Override
    public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
        Date date=new Date();
        System.out.println("定時調度任務"+date);
    }
}