quartz之动态定时器实现

Spring整合Quartz

创建工程需要的

a、quartz调度框架是有内置表的
进入quartz的官网http://www.quartz-scheduler.org/，
点击Downloads，

下载后在目录\docs\dbTables下有常用数据库创建quartz表的脚本，例如：“tables_mysql.sql”

table_mysql.sql
table_mysql_innodb.sql上述两者所有的数据库引擎不一样

导入quartz调度框架自带的表

详情见下

b、导入pom依赖

 <mysql.verion>5.1.44</mysql.verion><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>${mysql.version}</version><scope>runtime</scope>
</dependency><dependency><groupId>org.quartz-scheduler</groupId><artifactId>quartz-jobs</artifactId><version>2.2.1</version>
</dependency>
<!--引入druid依赖--><dependency><groupId>com.alibaba</groupId><artifactId>druid-spring-boot-starter</artifactId><version>1.1.10</version></dependency>
<!--配置逆向生成--><resources><!--解决mybatis-generator-maven-plugin运行时没有将XxxMapper.xml文件放入target文件夹的问题--><resource><directory>src/main/java</directory><includes><include>**/*.xml</include></includes></resource><!--解决mybatis-generator-maven-plugin运行时没有将jdbc.properites文件放入target文件夹的问题--><resource><directory>src/main/resources</directory><includes><include>*.properties</include><include>*.xml</include><include>*.yml</include></includes></resource></resources><plugin><groupId>org.mybatis.generator</groupId><artifactId>mybatis-generator-maven-plugin</artifactId><version>1.3.2</version><dependencies><!--使用Mybatis-generator插件不能使用太高版本的mysql驱动 --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>${mysql.version}</version></dependency></dependencies><configuration><overwrite>true</overwrite></configuration></plugin>

DruidConnectionProvider.java（数据源拓展类）

package com.zxp.quartz02.util;/*** @author笑笑* @site www.xiaoxiao.com* @company* @create 2020-01-05 19:11*/import com.alibaba.druid.pool.DruidDataSource;
import org.quartz.SchedulerException;
import org.quartz.utils.ConnectionProvider;import java.sql.Connection;
import java.sql.SQLException;/*
#============================================================================
# JDBC
#============================================================================
org.quartz.jobStore.driverDelegateClass:org.quartz.impl.jdbcjobstore.StdJDBCDelegate
org.quartz.jobStore.useProperties:false
org.quartz.jobStore.dataSource:qzDS
#org.quartz.dataSource.qzDS.connectionProvider.class:org.quartz.utils.PoolingConnectionProvider
org.quartz.dataSource.qzDS.connectionProvider.class:com.javaxl.q03.quartz.DruidConnectionProvider
org.quartz.dataSource.qzDS.driver:com.mysql.jdbc.Driver
org.quartz.dataSource.qzDS.URL:jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8
org.quartz.dataSource.qzDS.user:root
org.quartz.dataSource.qzDS.password:root
org.quartz.dataSource.qzDS.maxConnections:30
org.quartz.dataSource.qzDS.validationQuery: select 0
*/
/*** [Druid连接池的Quartz扩展类]** @ProjectName: []* @Author: [xuguang]* @CreateDate: [2015/11/10 17:58]* @Update: [说明本次修改内容] BY[xuguang][2015/11/10]* @Version: [v1.0]*/
public class DruidConnectionProvider implements ConnectionProvider {/** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~** 常量配置，与quartz.properties文件的key保持一致(去掉前缀)，同时提供set方法，Quartz框架自动注入值。** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*///JDBC驱动public String driver;//JDBC连接串public String URL;//数据库用户名public String user;//数据库用户密码public String password;//数据库最大连接数public int maxConnection;//数据库SQL查询每次连接返回执行到连接池，以确保它仍然是有效的。public String validationQuery;private boolean validateOnCheckout;private int idleConnectionValidationSeconds;public String maxCachedStatementsPerConnection;private String discardIdleConnectionsSeconds;public static final int DEFAULT_DB_MAX_CONNECTIONS = 10;public static final int DEFAULT_DB_MAX_CACHED_STATEMENTS_PER_CONNECTION = 120;//Druid连接池private DruidDataSource datasource;/** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~** 接口实现** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/public Connection getConnection() throws SQLException {return datasource.getConnection();}public void shutdown() throws SQLException {datasource.close();}public void initialize() throws SQLException{if (this.URL == null) {throw new SQLException("DBPool could not be created: DB URL cannot be null");}if (this.driver == null) {throw new SQLException("DBPool driver could not be created: DB driver class name cannot be null!");}if (this.maxConnection < 0) {throw new SQLException("DBPool maxConnectins could not be created: Max connections must be greater than zero!");}datasource = new DruidDataSource();try{datasource.setDriverClassName(this.driver);} catch (Exception e) {try {throw new SchedulerException("Problem setting driver class name on datasource: " + e.getMessage(), e);} catch (SchedulerException e1) {}}datasource.setUrl(this.URL);datasource.setUsername(this.user);datasource.setPassword(this.password);datasource.setMaxActive(this.maxConnection);datasource.setMinIdle(1);datasource.setMaxWait(0);datasource.setMaxPoolPreparedStatementPerConnectionSize(this.DEFAULT_DB_MAX_CACHED_STATEMENTS_PER_CONNECTION);if (this.validationQuery != null) {datasource.setValidationQuery(this.validationQuery);if(!this.validateOnCheckout)datasource.setTestOnReturn(true);elsedatasource.setTestOnBorrow(true);datasource.setValidationQueryTimeout(this.idleConnectionValidationSeconds);}}/** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~** 提供get set方法** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/public String getDriver() {return driver;}public void setDriver(String driver) {this.driver = driver;}public String getURL() {return URL;}public void setURL(String URL) {this.URL = URL;}public String getUser() {return user;}public void setUser(String user) {this.user = user;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public int getMaxConnection() {return maxConnection;}public void setMaxConnection(int maxConnection) {this.maxConnection = maxConnection;}public String getValidationQuery() {return validationQuery;}public void setValidationQuery(String validationQuery) {this.validationQuery = validationQuery;}public boolean isValidateOnCheckout() {return validateOnCheckout;}public void setValidateOnCheckout(boolean validateOnCheckout) {this.validateOnCheckout = validateOnCheckout;}public int getIdleConnectionValidationSeconds() {return idleConnectionValidationSeconds;}public void setIdleConnectionValidationSeconds(int idleConnectionValidationSeconds) {this.idleConnectionValidationSeconds = idleConnectionValidationSeconds;}public DruidDataSource getDatasource() {return datasource;}public void setDatasource(DruidDataSource datasource) {this.datasource = datasource;}
}

generatorConfig.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN""http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd" >
<generatorConfiguration><!-- 引入配置文件 --><properties resource="jdbc.properties"/><!--指定数据库jdbc驱动jar包的位置--><classPathEntry location="E:\\initPath\\mvn_repository\\mysql\\mysql-connector-java\\5.1.44\\mysql-connector-java-5.1.44.jar"/><!-- 一个数据库一个context --><context id="infoGuardian"><!-- 注释 --><commentGenerator><property name="suppressAllComments" value="true"/><!-- 是否取消注释 --><property name="suppressDate" value="true"/> <!-- 是否生成注释代时间戳 --></commentGenerator><!-- jdbc连接 --><jdbcConnection driverClass="${jdbc.driver}"connectionURL="${jdbc.url}" userId="${jdbc.username}" password="${jdbc.password}"/><!-- 类型转换 --><javaTypeResolver><!-- 是否使用bigDecimal， false可自动转化以下类型（Long, Integer, Short, etc.） --><property name="forceBigDecimals" value="false"/></javaTypeResolver><!-- 01 指定javaBean生成的位置 --><!-- targetPackage：指定生成的model生成所在的包名 --><!-- targetProject：指定在该项目下所在的路径  --><javaModelGenerator targetPackage="com.zxp.quartz02.model"targetProject="src/main/java"><!-- 是否允许子包，即targetPackage.schemaName.tableName --><property name="enableSubPackages" value="false"/><!-- 是否对model添加构造函数 --><property name="constructorBased" value="true"/><!-- 是否针对string类型的字段在set的时候进行trim调用 --><property name="trimStrings" value="false"/><!-- 建立的Model对象是否 不可改变  即生成的Model对象不会有 setter方法，只有构造方法 --><property name="immutable" value="false"/></javaModelGenerator><!-- 02 指定sql映射文件生成的位置 --><sqlMapGenerator targetPackage="com.zxp.quartz02.mapper"targetProject="src/main/java"><!-- 是否允许子包，即targetPackage.schemaName.tableName --><property name="enableSubPackages" value="false"/></sqlMapGenerator><!-- 03 生成XxxMapper接口 --><!-- type="ANNOTATEDMAPPER",生成Java Model 和基于注解的Mapper对象 --><!-- type="MIXEDMAPPER",生成基于注解的Java Model 和相应的Mapper对象 --><!-- type="XMLMAPPER",生成SQLMap XML文件和独立的Mapper接口 --><javaClientGenerator targetPackage="com.zxp.quartz02.mapper"targetProject="src/main/java" type="XMLMAPPER"><!-- 是否在当前路径下新加一层schema,false路径com.oop.eksp.user.model， true:com.oop.eksp.user.model.[schemaName] --><property name="enableSubPackages" value="false"/></javaClientGenerator><!-- 配置表信息 --><table schema="" tableName="t_schedule_trigger" domainObjectName="ScheduleTrigger"enableCountByExample="false" enableDeleteByExample="false"enableSelectByExample="false" enableUpdateByExample="false"><property name="useActualColumnNames" value="true" /></table><table schema="" tableName="t_schedule_trigger_param" domainObjectName="ScheduleTriggerParam"enableCountByExample="false" enableDeleteByExample="false"enableSelectByExample="false" enableUpdateByExample="false"><property name="useActualColumnNames" value="true" /></table></context>
</generatorConfiguration>

jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8
jdbc.username=root
jdbc.password=123

c、在项目中添加quartz.properties文件(这样就不会加载自带的properties文件)
此文件的内容主要分为：scheduler，ThreadPool，JobStore，plugin，Datasources等部分，覆盖properties文件的目的是覆盖默认的数据源，更换为druid的数据配置
quartz.properties（更改默认数据源）
quartz默认采用的连接池是c3p0,现在流行Druid连接池有监控平台，需要手动换源。

#
#============================================================================
# Configure Main Scheduler Properties 调度器属性
#============================================================================
org.quartz.scheduler.instanceName: DefaultQuartzScheduler
org.quartz.scheduler.instanceId = AUTO
org.quartz.scheduler.rmi.export: false
org.quartz.scheduler.rmi.proxy: false
org.quartz.scheduler.wrapJobExecutionInUserTransaction: false
org.quartz.threadPool.class: org.quartz.simpl.SimpleThreadPool
org.quartz.threadPool.threadCount= 10
org.quartz.threadPool.threadPriority: 5
org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread: true
org.quartz.jobStore.misfireThreshold: 60000
#============================================================================
# Configure JobStore
#============================================================================
#存储方式使用JobStoreTX，也就是数据库
org.quartz.jobStore.class: org.quartz.impl.jdbcjobstore.JobStoreTX
org.quartz.jobStore.driverDelegateClass:org.quartz.impl.jdbcjobstore.StdJDBCDelegate
#使用自己的配置文件
org.quartz.jobStore.useProperties:true
#数据库中quartz表的表名前缀
org.quartz.jobStore.tablePrefix:qrtz_
org.quartz.jobStore.dataSource:qzDS
#是否使用集群（如果项目只部署到 一台服务器，就不用了）
org.quartz.jobStore.isClustered = true
#============================================================================
# Configure Datasources
#============================================================================
#配置数据库源（org.quartz.dataSource.qzDS.maxConnections: c3p0配置的是有s的，druid数据源没有s）
org.quartz.dataSource.qzDS.connectionProvider.class:com.zxp.quartz02.util.DruidConnectionProvider
org.quartz.dataSource.qzDS.driver: com.mysql.jdbc.Driver
org.quartz.dataSource.qzDS.URL: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8
org.quartz.dataSource.qzDS.user: root
org.quartz.dataSource.qzDS.password: 123
org.quartz.dataSource.qzDS.maxConnection: 10

d、自定义MyJobFactory，解决spring不能在quartz中注入bean的问题

package com.zxp.quartz02.quartz;import lombok.extern.slf4j.Slf4j;
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.Component;/*** @author笑笑* @site www.xiaoxiao.com* @company* @create 2020-01-04 11:45*/
@Component
@Slf4j
public class MyJobFactory extends AdaptableJobFactory {//这个由Spring自动注入@Autowiredprivate AutowireCapableBeanFactory autowireCapableBeanFactory;//重写Job任务对象的创建实例方法@Overrideprotected Object createJobInstance(TriggerFiredBundle bundle) throws Exception {Object jobInstance = super.createJobInstance(bundle);//通过以下方式，解决Job任务无法使用Spring中的Bean问题autowireCapableBeanFactory.autowireBean(jobInstance);return jobInstance;}
}

e、创建调度器schedule，交给spring进行管理

QuartzConfiguration：quartz调度框架与spring框架整合的配置类，主要是要将org.quartz.Scheduler交给spring进行管理

package com.zxp.quartz02.quartz;import org.quartz.Scheduler;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.config.PropertiesFactoryBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
import org.springframework.scheduling.quartz.SchedulerFactoryBean;import java.io.IOException;
import java.util.Properties;/*** @author笑笑* @site www.xiaoxiao.com* @company* @create 2020-01-04 11:46*/
@Configuration
public class QuartzConfiguration {@Autowiredprivate MyJobFactory myJobFactory;//创建调度器工厂@Beanpublic SchedulerFactoryBean schedulerFactoryBean(){//1.创建SchedulerFactoryBean//2.加载自定义的quartz.properties配置文件//3.设置MyJobFactorySchedulerFactoryBean factoryBean=new SchedulerFactoryBean();try {factoryBean.setQuartzProperties(quartzProperties());factoryBean.setJobFactory(myJobFactory);return factoryBean;} catch (IOException e) {throw new RuntimeException(e);}}@Beanpublic Properties quartzProperties() throws IOException {PropertiesFactoryBean propertiesFactoryBean=new PropertiesFactoryBean();propertiesFactoryBean.setLocation(new ClassPathResource("/quartz.properties"));propertiesFactoryBean.afterPropertiesSet();return propertiesFactoryBean.getObject();}@Bean(name="scheduler")public Scheduler scheduler(){return schedulerFactoryBean().getScheduler();}
}

以上Spring整合Quartz整合完毕

h、自定义任务表与quartz内置表的区分
自定义的业务表

-- 注意：job_name存放的任务类的全路径，在quartz中通过jobName和jobGroup来确定trigger的唯一性，所以这两列为联合唯一索引
create table t_schedule_trigger
(id int primary key auto_increment,                                -- IDcron varchar(200) not null,                                       -- 时间表达式status char(1) not null,                                          -- 使用状态 0：禁用   1：启用job_name varchar(200) not null,                                   -- 任务名称job_group varchar(200) not null,                                  -- 任务分组  unique index(job_name,job_group)
);-- 额外添加到任务中的参数
create table t_schedule_trigger_param
(param_id int primary key auto_increment,                                -- IDname varchar(200) not null,                                             -- 参数名value varchar(512),                                                     -- 参数值schedule_trigger_id int not null,                                       -- 外键：引用t_schedule_trigger(id)foreign key(schedule_trigger_id) references t_schedule_trigger(id)
);

quartz内置表

f、创建自定义任务以及 & g、更新quartz中的任务
yml配置

server:port: 80servlet:context-path: /
spring:datasource:#1.JDBCtype: com.alibaba.druid.pool.DruidDataSourcedriver-class-name: com.mysql.jdbc.Driverurl: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8username: rootpassword: 123druid:#2.连接池配置#初始化连接池的连接数量 大小，最小，最大initial-size: 5min-idle: 5max-active: 20#配置获取连接等待超时的时间max-wait: 60000#配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒time-between-eviction-runs-millis: 60000# 配置一个连接在池中最小生存的时间，单位是毫秒min-evictable-idle-time-millis: 30000validation-query: SELECT 1 FROM DUALtest-while-idle: truetest-on-borrow: truetest-on-return: false# 是否缓存preparedStatement，也就是PSCache  官方建议MySQL下建议关闭   个人建议如果想用SQL防火墙 建议打开pool-prepared-statements: truemax-pool-prepared-statement-per-connection-size: 20# 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙filter:stat:merge-sql: trueslow-sql-millis: 5000#3.基础监控配置web-stat-filter:enabled: trueurl-pattern: /*#设置不统计哪些URLexclusions: "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"session-stat-enable: truesession-stat-max-count: 100stat-view-servlet:enabled: trueurl-pattern: /druid/*reset-enable: true#设置监控页面的登录名和密码login-username: adminlogin-password: adminallow: 127.0.0.1#deny: 192.168.1.100#显示日志
logging:level:com.zxp.quartz02.mapper: debug

ScheduleTriggerParamMapper

*** 查询出当前任务类对应所需的参数* @param triggerId* @return*/List<ScheduleTriggerParam> queryScheduleParamLst(Integer triggerId);

ScheduleTriggerParamMapper.xml

<select id="queryScheduleParamLst" resultType="com.zxp.quartz02.model.ScheduleTriggerParam">select <include refid="Base_Column_List"/>from t_schedule_trigger_param where schedule_trigger_id=#{triggerId}</select>

ScheduleTriggerParamService

package com.zxp.quartz02.service;import com.zxp.quartz02.model.ScheduleTriggerParam;import java.util.List;/*** @author笑笑* @site www.xiaoxiao.com* @company* @create 2020-01-05 18:43*/public interface ScheduleTriggerParamService {public List<ScheduleTriggerParam> queryScheduleParamLst(Integer triggerId) ;
}

ScheduleTriggerParamServiceImpl

package com.zxp.quartz02.service.impl;import com.zxp.quartz02.mapper.ScheduleTriggerParamMapper;
import com.zxp.quartz02.model.ScheduleTriggerParam;
import com.zxp.quartz02.service.ScheduleTriggerParamService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.List;/*** @author笑笑* @site www.xiaoxiao.com* @company* @create 2020-01-05 18:46*/
@Service
public class ScheduleTriggerParamServiceImpl implements ScheduleTriggerParamService {@Autowiredprivate ScheduleTriggerParamMapper scheduleTriggerParamMapper;@Overridepublic List<ScheduleTriggerParam> queryScheduleParamLst(Integer triggerId) {return scheduleTriggerParamMapper.queryScheduleParamLst(triggerId);}
}

ScheduleTriggerMapper

 /*** 查询触发器中包含的所有任务* @return*/List<ScheduleTrigger> queryScheduleTriggerLst();

ScheduleTriggerMapper.xml

 <select id="queryScheduleTriggerLst" resultType="com.zxp.quartz02.model.ScheduleTrigger">select <include refid="Base_Column_List"/>from t_schedule_trigger</select>

ScheduleTriggerServiceImpl

package com.zxp.quartz02.service.impl;import com.zxp.quartz02.mapper.ScheduleTriggerMapper;
import com.zxp.quartz02.mapper.ScheduleTriggerParamMapper;
import com.zxp.quartz02.model.ScheduleTrigger;
import com.zxp.quartz02.model.ScheduleTriggerParam;
import org.quartz.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;import java.util.List;/*** @author笑笑* @site www.xiaoxiao.com* @company* @create 2020-01-05 18:40*/
@Service
public class ScheduleTriggerServiceImpl {@Autowiredprivate ScheduleTriggerMapper scheduleTriggerMapper;@Autowiredprivate ScheduleTriggerParamMapper scheduleTriggerParamMapper;@Autowiredprivate Scheduler scheduler;@Scheduled(cron = "0/10 * * * * ?")public void refreshScheduler(){try {List<ScheduleTrigger> scheduleTriggers =scheduleTriggerMapper.queryScheduleTriggerLst();if(null!=scheduleTriggers){for (ScheduleTrigger scheduleTrigger : scheduleTriggers) {String cron = scheduleTrigger.getCron();  //表达式String jobName = scheduleTrigger.getJob_name(); //任务名称String jobGroup = scheduleTrigger.getJob_group(); //任务分组String status = scheduleTrigger.getStatus();  //任务状态//JobName+JobGroup=Primary Key//根据jobName和jobGroup生成TriggerKeyTriggerKey triggerKey =TriggerKey.triggerKey(jobName, jobGroup);//根据TriggerKey到Scheduler调度器中获取触发器CronTrigger cronTrigger = (CronTrigger)scheduler.getTrigger(triggerKey);if(null==cronTrigger){if(status.equals("0"))continue;System.out.println("创建调度器");//创建任务详情JobDetail jobDetail=JobBuilder.newJob((Class<? extends Job>) Class.forName(jobName)).withIdentity(jobName,jobGroup).build();//往Job任务中传递参数JobDataMap jobDataMap = jobDetail.getJobDataMap();List<ScheduleTriggerParam> params =scheduleTriggerParamMapper.queryScheduleParamLst(scheduleTrigger.getId());for (ScheduleTriggerParam param : params) {jobDataMap.put(param.getName(),param.getValue());}//创建表达式调度器CronScheduleBuilder cronSchedule =CronScheduleBuilder.cronSchedule(cron);//创建TriggercronTrigger=TriggerBuilder.newTrigger().withIdentity(jobName,jobGroup).withSchedule(cronSchedule).build();//将jobDetail和Trigger注入到scheduler调度器中scheduler.scheduleJob(jobDetail,cronTrigger);}else{//System.out.println("Quartz 调度任务中已存在该任务");if(status.equals("0")){JobKey jobKey = JobKey.jobKey(jobName, jobGroup);scheduler.deleteJob(jobKey);continue;}//调度器中的表达式String cronExpression =cronTrigger.getCronExpression();if(!cron.equals(cronExpression)){//创建表达式调度器CronScheduleBuilder cronSchedule =CronScheduleBuilder.cronSchedule(cron);//重构cronTrigger=cronTrigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(cronSchedule).build();//刷新调度器scheduler.rescheduleJob(triggerKey,cronTrigger);}}}}} catch (Exception e) {e.printStackTrace();}}
}

Quartz02Application

package com.zxp.quartz02;import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.transaction.annotation.EnableTransactionManagement;@MapperScan("com.zxp.quartz02.mapper")
@EnableTransactionManagement
@EnableScheduling
@SpringBootApplication
public class Quartz02Application {public static void main(String[] args) {SpringApplication.run(Quartz02Application.class, args);}}

案例
读取数据库中表达式启动定时任务1（每5s执行）
更改定时任务状态（启用/禁用），定时任务1停止

MyJob

package com.zxp.quartz02.quartz;import lombok.extern.slf4j.Slf4j;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.springframework.stereotype.Component;import java.util.Date;/*** @author笑笑* @site www.xiaoxiao.com* @company* @create 2020-01-05 18:55*/
@Component
@Slf4j
public class MyJob implements Job {@Overridepublic void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {System.out.println("MyJob是一个空的任务计划,时间："+new Date().toLocaleString());}
}

读取数据库中表达式启动定时任务2（每5s执行），在对应作业类中打印定时任务2携带的参数

MyJob1

package com.zxp.quartz02.quartz;import com.zxp.quartz02.service.ScheduleTriggerParamService;
import lombok.extern.slf4j.Slf4j;
import org.quartz.JobDataMap;
import org.quartz.JobDetail;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;import java.util.Date;
/*** @author笑笑* @site www.xiaoxiao.com* @company* @create 2020-01-05 18:57*/
@Component
@Slf4j
public class MyJob1 implements Job {@Autowiredprivate ScheduleTriggerParamService scheduleTriggerParamService;@Overridepublic void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {JobDetail jobDetail =jobExecutionContext.getJobDetail();JobDataMap jobDataMap = jobDetail.getJobDataMap();System.out.println(new Date().toLocaleString()+"-->携带参数个数:"+jobDataMap.size());}
}

读取数据库中表达式启动定时任务3（每20s执行改成每5s执行），更改数据库定时任务表达式，定时任务3对应执行策略相应发生改变。

package com.zxp.quartz02.quartz;import lombok.extern.slf4j.Slf4j;
import org.quartz.*;
import org.springframework.stereotype.Component;import java.util.Date;/*** @author笑笑* @site www.xiaoxiao.com* @company* @create 2020-01-05 18:57*/
@Component
@Slf4j
public class MyJob2 implements Job{@Overridepublic void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {JobDetail jobDetail =jobExecutionContext.getJobDetail();JobDataMap jobDataMap = jobDetail.getJobDataMap();System.out.println(new Date().toLocaleString()+"-->MyJob2参数传递name="+jobDataMap.get("name")+",score="+jobDataMap.get("score"));}
}

升级案例—简单版页面

解决模板[索引]可能不存在，也可能不被任何配置的模板解析器访问在pom中添加

           <resource><directory>src/main/resources</directory></resource>

要用Thymeleaf模板首先去yml文件配置

spring:thymeleaf:cache: false

Service层
ScheduleTriggerService

package com.zxp.quartz02.service;import com.zxp.quartz02.model.ScheduleTrigger;import java.util.List;/*** @author笑笑* @site www.xiaoxiao.com* @company* @create 2020-01-05 20:24*/
public interface ScheduleTriggerService {ScheduleTrigger selectByPrimaryKey(Integer id);int updateByPrimaryKeySelective(ScheduleTrigger record);/*** 查询触发器中包含的所有任务* @return*/List<ScheduleTrigger> queryScheduleTriggerList();}

ScheduleTriggerServiceImpl

package com.zxp.quartz02.service.impl;import com.zxp.quartz02.mapper.ScheduleTriggerMapper;
import com.zxp.quartz02.mapper.ScheduleTriggerParamMapper;
import com.zxp.quartz02.model.ScheduleTrigger;
import com.zxp.quartz02.model.ScheduleTriggerParam;
import com.zxp.quartz02.service.ScheduleTriggerService;
import org.quartz.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;import java.util.List;/*** @author笑笑* @site www.xiaoxiao.com* @company* @create 2020-01-05 18:40*/
@Service
public class ScheduleTriggerServiceImpl implements ScheduleTriggerService {@Autowiredprivate ScheduleTriggerMapper scheduleTriggerMapper;@Autowiredprivate ScheduleTriggerParamMapper scheduleTriggerParamMapper;@Autowiredprivate Scheduler scheduler;@Scheduled(cron = "0/10 * * * * ?")public void refreshScheduler(){try {List<ScheduleTrigger> scheduleTriggers =scheduleTriggerMapper.queryScheduleTriggerLst();if(null!=scheduleTriggers){for (ScheduleTrigger scheduleTrigger : scheduleTriggers) {String cron = scheduleTrigger.getCron();  //表达式String jobName = scheduleTrigger.getJob_name(); //任务名称String jobGroup = scheduleTrigger.getJob_group(); //任务分组String status = scheduleTrigger.getStatus();  //任务状态//JobName+JobGroup=Primary Key//根据jobName和jobGroup生成TriggerKeyTriggerKey triggerKey =TriggerKey.triggerKey(jobName, jobGroup);//根据TriggerKey到Scheduler调度器中获取触发器CronTrigger cronTrigger = (CronTrigger)scheduler.getTrigger(triggerKey);if(null==cronTrigger){if(status.equals("0"))continue;System.out.println("创建调度器");//创建任务详情JobDetail jobDetail=JobBuilder.newJob((Class<? extends Job>) Class.forName(jobName)).withIdentity(jobName,jobGroup).build();//往Job任务中传递参数JobDataMap jobDataMap = jobDetail.getJobDataMap();List<ScheduleTriggerParam> params =scheduleTriggerParamMapper.queryScheduleParamLst(scheduleTrigger.getId());for (ScheduleTriggerParam param : params) {jobDataMap.put(param.getName(),param.getValue());}//创建表达式调度器CronScheduleBuilder cronSchedule =CronScheduleBuilder.cronSchedule(cron);//创建TriggercronTrigger= TriggerBuilder.newTrigger().withIdentity(jobName,jobGroup).withSchedule(cronSchedule).build();//将jobDetail和Trigger注入到scheduler调度器中scheduler.scheduleJob(jobDetail,cronTrigger);}else{//System.out.println("Quartz 调度任务中已存在该任务");if(status.equals("0")){JobKey jobKey = JobKey.jobKey(jobName, jobGroup);scheduler.deleteJob(jobKey);continue;}//调度器中的表达式String cronExpression =cronTrigger.getCronExpression();if(!cron.equals(cronExpression)){//创建表达式调度器CronScheduleBuilder cronSchedule =CronScheduleBuilder.cronSchedule(cron);//重构cronTrigger=cronTrigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(cronSchedule).build();//刷新调度器scheduler.rescheduleJob(triggerKey,cronTrigger);}}}}} catch (Exception e) {e.printStackTrace();}}@Overridepublic ScheduleTrigger selectByPrimaryKey(Integer id) {return scheduleTriggerMapper.selectByPrimaryKey(id);}@Overridepublic int updateByPrimaryKeySelective(ScheduleTrigger record) {return scheduleTriggerMapper.updateByPrimaryKeySelective(record);}@Overridepublic List<ScheduleTrigger> queryScheduleTriggerList() {return scheduleTriggerMapper.queryScheduleTriggerLst();}
}

Controller层
QuartzController

package com.zxp.quartz02.controller;import com.zxp.quartz02.model.ScheduleTrigger;
import com.zxp.quartz02.service.ScheduleTriggerService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;import java.util.List;/*** @author笑笑* @site www.xiaoxiao.com* @company* @create 2020-01-05 20:37*/
@Controller
@RequestMapping("/quartz")
public class QuartzController {@Autowiredprivate ScheduleTriggerService scheduleTriggerService;@RequestMapping("/list")public ModelAndView getAll(){ModelAndView mv = new ModelAndView();List<ScheduleTrigger> list = scheduleTriggerService.queryScheduleTriggerList();mv.addObject("quartzList",list);mv.setViewName("list");return mv;}@RequestMapping("/edit")public String editStatus(ScheduleTrigger scheduleTrigger){int n = scheduleTriggerService.updateByPrimaryKeySelective(scheduleTrigger);return "redirect:/quartz/list";}@RequestMapping("/proSave/{id}")public ModelAndView proSave(@PathVariable(value = "id") Integer id){ModelAndView mv=new ModelAndView();ScheduleTrigger scheduleTrigger = scheduleTriggerService.selectByPrimaryKey(id);mv.addObject("schedule",scheduleTrigger);mv.setViewName("edit");return mv;}}

页面
list.html

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org"><head><meta charset="UTF-8"><title>定时任务主界面</title>
</head>
<body style="text-align: center">
<h1>定时任务</h1>
<table align="center" cellpadding="0" cellspacing="0" border="1" width="60%"><tr><td>任务id</td><td>任务表达式</td><td>任务状态</td><td>job工作类</td><td>job分组</td><td>操作</td></tr><tr th:each="qz : ${quartzList}"><td th:text="${qz.id}"></td><td th:text="${qz.cron}"></td><td th:text="${qz.status}"></td><td th:text="${qz.job_name}"></td><td th:text="${qz.job_group}"></td><td th:switch ="${qz.status} == 0"><a th:case="true" th:href="@{/quartz/edit(id=${qz.id},status=1)}">启动</a><a th:case="false" th:href="@{/quartz/edit(id=${qz.id},status=0)}">停止</a><a th:href="@{'/quartz/proSave/'+${qz.id}}">修改</a></td></tr>
</table>
</body>
</html>

edit.html

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head><meta charset="UTF-8"><title>定时任务修改界面</title>
</head>
<body>
<h1>修改定时任务</h1>
<form th:action="@{/quartz/edit}" method="post"><input type="hidden" name="id" th:value="${schedule.id}" />任务表达式： <input width="300px" type="text" name="cron" th:value="${schedule.cron}" /></br>job工作类： <input width="300px" type="text" name="job_name" th:value="${schedule.job_name}" /></br>job分组：<input width="300px" type="text" name="job_group" th:value="${schedule.job_group}" /></br><input type="submit" value="确定"/>
</form>
</body>
</html>

功能就不演示了与上方基本一致。

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