本章任务

1、Spring整合Quartz

2、读取数据库中表达式启动定时任务1（每5s执行）

3、更改定时任务状态（启用/禁用），定时任务1停止

4、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

5、读取数据库中表达式启动定时任务3（每5s执行改成每20s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。

Spring整合Quartz

必须使用quartz调度框架内置表

进入quartz的官网，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”
导入数据库

ps: table_mysql_innodb.sql 这个是针对 mysql中innodb 这个引擎的，如果你使用的是这个引擎就导入这个吧

quartz 内置表结构：

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)
);

案例中需要观察表数据变化的表

-- 自定义的业务表
SELECT * FROM t_schedule_trigger;
SELECT * FROM t_schedule_trigger_param;-- quartz调度框架自带的表
SELECT * FROM qrtz_scheduler_state;
SELECT * FROM qrtz_cron_triggers;
SELECT * FROM qrtz_simple_triggers
SELECT * FROM qrtz_triggers;
SELECT * FROM qrtz_job_details;

创建springboot项目

这是此处项目所要用到的启动器

导入pom依赖

maven中还需添加：

<dependency><groupId>org.quartz-scheduler</groupId><artifactId>quartz-jobs</artifactId><version>2.2.1</version>
</dependency><dependency><groupId>com.github.pagehelper</groupId><artifactId>pagehelper-spring-boot-starter</artifactId><version>1.2.3</version>
</dependency><dependency><groupId>com.alibaba</groupId><artifactId>druid-spring-boot-starter</artifactId><version>1.1.10</version>
</dependency>
<!--        aop切面-->
<dependency><groupId>org.springframework</groupId><artifactId>spring-aspects</artifactId>
</dependency>

pom.xml所有代码：

<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.2.1.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.wxm</groupId><artifactId>quartz02</artifactId><version>0.0.1-SNAPSHOT</version><name>quartz02</name><description>quartz02 project for Spring Boot</description><properties><java.version>1.8</java.version><!--mysql--><mysql.version>5.1.44</mysql.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-jdbc</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-quartz</artifactId></dependency><dependency><groupId>org.quartz-scheduler</groupId><artifactId>quartz-jobs</artifactId><version>2.2.1</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>2.1.1</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><scope>runtime</scope></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope><exclusions><exclusion><groupId>org.junit.vintage</groupId><artifactId>junit-vintage-engine</artifactId></exclusion></exclusions></dependency><dependency><groupId>com.alibaba</groupId><artifactId>druid-spring-boot-starter</artifactId><version>1.1.10</version></dependency><!--        aop切面--><dependency><groupId>org.springframework</groupId><artifactId>spring-aspects</artifactId></dependency><dependency><groupId>com.github.pagehelper</groupId><artifactId>pagehelper-spring-boot-starter</artifactId><version>1.2.3</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin><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></plugins><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></includes></resource></resources></build></project>

修改quartz数据源为 Druid

说明：
quartz 需要用到数据库连接池，Quartz 2.0 以前默认使用 DBCP。Quartz 2.0 以后 默认C3P0（包含2.0）。下面我们要将数据源修改为 Druidps:Druid的有自带监控系统...所以大家都在用，但是呢：配置换源很繁琐。如以下
基本步骤：
（1）导入依赖（上面已经导入了）
（2）导入DruidConnectionProvider.java
（3）修改quartz.properties配置

导入DruidConnectionProvider.java

package com.wxm.quartz02.util;/*
#============================================================================
# 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
*/import com.alibaba.druid.pool.DruidDataSource;
import org.quartz.SchedulerException;
import org.quartz.utils.ConnectionProvider;import java.sql.Connection;
import java.sql.SQLException;/*** [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;}
}

quartz.properties

(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

#
#============================================================================
# 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.wxm.quartz02.util.DruidConnectionProvider
org.quartz.dataSource.qzDS.driver: com.mysql.jdbc.Driver
org.quartz.dataSource.qzDS.URL: jdbc:mysql://localhost:2206/test?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC
org.quartz.dataSource.qzDS.user: root
org.quartz.dataSource.qzDS.password: root
org.quartz.dataSource.qzDS.maxConnection: 10

注意修改

我这里血的示范！！！

报错解决思路：

错误体现

1. java.lang.IllegalStateException: Failed to load ApplicationContext

2. Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘springTaskByQaurtz’: Unsatisfied dependency expressed

3. Caused by: java.lang.ClassNotFoundException:
   com.wxm.util.DruidConnectionProvider

4. Caused by: org.springframework.beans.factory.BeanCreationException:
   Error creating bean with name ‘scheduler’ defined in class path
   resource [com/wxm/quar

5. Caused by:
   java.lang.ClassNotFoundException:
   com.wxm.util.DruidConnectionProvider

发现越往下越体现突破点，发现找不到DruidConnectionProvider这个类！！！！？？，仔细想想这个类是连接数据库数据用的

而它又是读取它的类quartz.properties
仔细想想突然???
这里配置：
内心------------省略1万字---------------

导入 MyJobFactory， 交给spring管理 让job类实现bean注入的功能

package com.wxm.quartz02.config;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 wxm* @site www.wxm.com* @company xxx公司* @create 2020-01-05 16:47*/@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);//这个时候 jobInstance 已经交给spring管理return jobInstance;}
}

QuartzConfiguration.java（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.wxm.quartz02.config;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 wxm* @site www.wxm.com* @company xxx公司* @create 2020-01-05 16:48*/@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();}
}

application.yml

server:servlet:context-path: /port: 80
spring:datasource:#1.JDBCtype: com.alibaba.druid.pool.DruidDataSourcedriver-class-name: com.mysql.jdbc.Driverurl: jdbc:mysql://localhost:2206/test?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTCusername: rootpassword: rootdruid:#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: 192.168.1.100thymeleaf:cache: falseencoding: utf-8
#显示日志
logging:level:com.wxm.quartz02.mapper: debugpagehelper:helperDialect: mysqlreasonable: truesupportMethodsArguments: trueparams: count=countSqlmybatis:mapper-locations: classpath:mappings/*.xml

Quartz02Application.java

package com.wxm.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.wxm.quartz02.mapper")
@EnableTransactionManagement
@EnableScheduling
@SpringBootApplication
public class Quartz02Application {public static void main(String[] args) {SpringApplication.run(Quartz02Application.class, args);}}

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 这里一定要使用 mysql-connector-java-5.1.44.jar版本的jar包，其他版本很可能不稳定--><classPathEntry location="E:\\initPath2\\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.wxm.quartz02.mapper"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.wxm.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.wxm.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 --><!-- schema即为数据库名 --><!-- tableName为对应的数据库表 --><!-- domainObjectName是要生成的实体类 --><!-- enable*ByExample是否生成 example类 --><!--<table schema="" tableName="t_book" domainObjectName="Book"--><!--enableCountByExample="false" enableDeleteByExample="false"--><!--enableSelectByExample="false" enableUpdateByExample="false">--><!--&lt;!&ndash; 忽略列，不生成bean 字段 &ndash;&gt;--><!--&lt;!&ndash; <ignoreColumn column="FRED" /> &ndash;&gt;--><!--&lt;!&ndash; 指定列的java数据类型 &ndash;&gt;--><!--&lt;!&ndash; <columnOverride column="LONG_VARCHAR_FIELD" jdbcType="VARCHAR" /> &ndash;&gt;--><!--</table>--><table  tableName="t_schedule_trigger" domainObjectName="Trigger"enableCountByExample="false" enableDeleteByExample="false"enableSelectByExample="false" enableUpdateByExample="false"></table><table tableName="t_schedule_trigger_param" domainObjectName="TriggerParam"enableCountByExample="false" enableDeleteByExample="false"enableSelectByExample="false" enableUpdateByExample="false"></table></context>
</generatorConfiguration>

注意一致！！！
jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:2206/test?useUnicode=true&characterEncoding=UTF-8
jdbc.username=root
jdbc.password=root

案例

TriggerMapper.java

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

TriggerMapper.xml

  <select id="queryScheduleTriggerLst" resultMap="BaseResultMap">select id, cron, status, job_name, job_groupfrom t_schedule_trigger</select>

TriggerParamMapper.java

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

TriggerParamMapper.xml

<select id="queryScheduleParamLst"  resultMap="BaseResultMap">select param_id, name, value, schedule_trigger_id from t_schedule_trigger_param where schedule_trigger_id=#{triggerId}</select>

注：此处省略service 代码

spring自带定时任务作业类SpringTaskByQaurtz .java

package com.wxm.quartz02.util;import com.wxm.quartz02.mapper.Trigger;
import com.wxm.quartz02.mapper.TriggerMapper;
import com.wxm.quartz02.mapper.TriggerParam;
import com.wxm.quartz02.service.TriggerParamService;
import org.quartz.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;import javax.annotation.Resource;
import java.util.List;/*** @author wxm* @site www.wxm.com* @company xxx公司* @create 2020-01-05 19:03*/
@Component
public class SpringTaskByQaurtz {@Resourceprivate TriggerMapper tScheduleTriggerDao;@Resourceprivate TriggerParamService tScheduleTriggerParamService;@Autowiredprivate Scheduler scheduler;//这是每10秒中将调用一次这个方法@Scheduled(cron = "0/10 * * * * ?")public void refreshScheduler() {try {//这是查找出所有数据库中的定时任务数据List<Trigger> scheduleTriggers =tScheduleTriggerDao.queryScheduleTriggerLst();if (null != scheduleTriggers) {//循环开启定时任务for (Trigger scheduleTrigger : scheduleTriggers) {String cron = scheduleTrigger.getCron();  //表达式String jobName = scheduleTrigger.getJobName(); //任务名称String jobGroup = scheduleTrigger.getJobGroup(); //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) {//这是还没创建的定时任务 也就是 cronTrigger 为空的清空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<TriggerParam> params =tScheduleTriggerParamService.queryScheduleParamLst(scheduleTrigger.getId());for (TriggerParam 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")) {//如果禁用就直接将定时任务给关了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();}}
}

读取数据库中表达式启动定时任务

数据库表t_schedule_trigger配置

MyJob

package com.wxm.quartz02.job;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 wxm* @site www.wxm.com* @company xxx公司* @create 2020-01-05 19:23*/@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());}
}

Spring自带定时任务每10s执行一次，查询自定义触发器表，获取到具体的作业类及任务表达式，quartz的任务为每5s执行一次，所以打印如上

更改定时任务状态

更改数据库调度器表t_schedule_trigger的state状态
把 三条的status=1改为0，全部关闭状态
禁用后

定时任务中携带参数

把 第二条的status=0改为1，开启状态

MyJob1

package com.wxm.quartz02.job;import com.wxm.quartz02.service.TriggerParamService;
import lombok.extern.slf4j.Slf4j;
import org.quartz.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;import java.util.Date;@Component
@Slf4j
public class MyJob1 implements Job {@Autowiredprivate TriggerParamService 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());}
}

更改定时任务规则

把 第3条的status=0改为1，开启状态
MyJob2

package com.wxm.quartz02.job;import lombok.extern.slf4j.Slf4j;
import org.quartz.*;
import org.springframework.stereotype.Component;import java.util.Date;@Component
@Slf4j
public class MyJob2 implements Job {public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {JobDetail jobDetail =jobExecutionContext.getJobDetail();JobDataMap jobDataMap = jobDetail.getJobDataMap();System.out.println(new Date().toLocaleString()+"-->MyJobParam2参数传递name="+jobDataMap.get("name")+",score="+jobDataMap.get("score"));}
}

界面版CURD

最终效果

quartzController

package com.wxm.quartz02.controller;import com.wxm.quartz02.mapper.Trigger;
import com.wxm.quartz02.service.ScheduleTriggerService;
import com.wxm.quartz02.util.PageBean;
import com.wxm.quartz02.util.PageUtil;
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 javax.servlet.http.HttpServletRequest;
import java.util.List;/*** @author wxm* @site www.wxm.com* @company xxx公司* @create 2020-01-07 11:33*/
@Controller
@RequestMapping("quartz")
public class quartzController {@AutowiredScheduleTriggerService scheduleTriggerService;@RequestMapping("/listPager")public ModelAndView list(Trigger scheduleTrigger, HttpServletRequest request) {PageBean pageBean = new PageBean();pageBean.setRequest(request);ModelAndView modelAndView = new ModelAndView();
//List<Trigger> quartzs = scheduleTriggerService.queryScheduleTriggerLst( scheduleTrigger,pageBean);modelAndView.addObject("quartzs",quartzs);pageBean.setTotal(pageBean.getTotal()+"");modelAndView.addObject("pageCode", PageUtil.createPageCode(pageBean)/*.replaceAll("<","<").replaceAll("&gt:",">")*/);modelAndView.setViewName("thymeleaf/list");return modelAndView;}@RequestMapping("/edit")public String edit(Trigger scheduleTrigger){int n = scheduleTriggerService.updateByPrimaryKeySelective(scheduleTrigger);return "redirect:/quartz/listPager";}@RequestMapping("/proSave/{id}")public ModelAndView proSave(@PathVariable(value = "id") Integer id){ModelAndView mv=new ModelAndView();Trigger scheduleTrigger = scheduleTriggerService.selectByPrimaryKey(id);mv.addObject("schedule",scheduleTrigger);mv.setViewName("thymeleaf/edit");return mv;}@RequestMapping("/add")public String add(Trigger scheduleTrigger){scheduleTriggerService.insert(scheduleTrigger);scheduleTriggerService.refreshScheduler();return "redirect:/quartz/listPager";}@RequestMapping("/refresh")public String refresh(Trigger scheduleTrigger){scheduleTriggerService.refreshScheduler();return "redirect:/quartz/listPager";}@RequestMapping("/del/{bid}")public String del(@PathVariable(value = "bid") Integer bid){scheduleTriggerService.deleteByPrimaryKey(bid);scheduleTriggerService.refreshScheduler();return "redirect:/quartz/listPager";}}

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head><meta charset="UTF-8"><title>quartz定时任务管理</title>
</head>
<body>
<h1 style="text-align: center">quartz定时任务管理</h1>
<table style="text-align: center" align="center" border="1px" width="50%"><tr><td>定时任务id</td><td>定时任务表达式</td><td>定时任务状态</td><td>定时任务工作路径</td><td>定时任务分组</td><td>操作</td></tr><tr th:each="q : ${quartzs}"><td th:text="${q.id}"></td><td th:text="${q.cron}"></td><td th:text="${q.status}"></td><td th:text="${q.jobName}"></td><td th:text="${q.jobGroup}"></td><td th:switch ="${q.status} == 0"><a th:case="true" th:href="@{/quartz/edit(id=${q.id},status=1)}">启动</a><a th:case="false" th:href="@{/quartz/edit(id=${q.id},status=0)}">停止</a><a th:href="@{'/quartz/proSave/'+${q.id}}">修改</a></td></tr>
</table></body>
</html>

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head><meta charset="UTF-8"><title>修改定时任务</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="${schedule.id}" />定时任务表达式： <input width="300px" type="text" name="cron" th:value="${schedule.cron}" /></br>定时任务工作路径： <input width="300px" type="text" name="job_name" th:value="${schedule.jobName}" /></br>定时任务分组：<input width="300px" type="text" name="job_group" th:value="${schedule.jobGroup}" /></br><input type="submit" value="提交"/>
</form>
</body>
</html>

其实意思就是它找不到你的界面，因为他默认读取的是templates下的跟目录

所以我们需要在pom.xml文件里面添加一段配置，然后它就会找到相对应的界面了，这样我们运行的时候就会成功了
代码如下：

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

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