quartz會在SpringBoot項目启动的时候加载吗?
时间: 2024-03-06 11:47:54 浏览: 20
是的,Quartz可以与SpringBoot结合使用,可以在SpringBoot项目启动时自动加载Quartz任务调度器。具体来说,可以通过在SpringBoot中配置`SchedulerFactoryBean`来创建Quartz任务调度器,并在其`afterPropertiesSet()`方法中启动任务调度器。例如,可以在SpringBoot的配置类中添加如下代码:
```java
@Configuration
public class QuartzConfig {
@Bean
public SchedulerFactoryBean schedulerFactoryBean() {
SchedulerFactoryBean schedulerFactoryBean = new SchedulerFactoryBean();
// 配置其他属性
return schedulerFactoryBean;
}
@Bean
public Scheduler scheduler() {
return schedulerFactoryBean().getScheduler();
}
}
```
这样,在SpringBoot启动时,`schedulerFactoryBean()`方法会被调用,创建并启动Quartz任务调度器。同时,可以通过`scheduler()`方法获取Quartz任务调度器实例,进行任务的创建和管理。
相关问题
java 定时器 Quartz Springboot 自启动
在 Spring Boot 中使用 Quartz 定时器并自启动的步骤如下:
1. 添加依赖:在 pom.xml 文件中添加 Quartz 和 Spring Boot Starter 的依赖。
```xml
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>2.3.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<version>2.3.2.RELEASE</version>
</dependency>
```
2. 配置定时器:在配置文件中添加 Quartz 定时器的配置。
```properties
# 配置 Quartz SchedulerFactory
org.quartz.scheduler.instanceName=MyQuartzScheduler
org.quartz.scheduler.instanceId=AUTO
# 配置线程池
org.quartz.threadPool.class=org.quartz.simpl.SimpleThreadPool
org.quartz.threadPool.threadCount=5
org.quartz.threadPool.threadPriority=5
# 配置JobStore
org.quartz.jobStore.class=org.quartz.impl.jdbcjobstore.JobStoreTX
org.quartz.jobStore.driverDelegateClass=org.quartz.impl.jdbcjobstore.StdJDBCDelegate
org.quartz.jobStore.tablePrefix=QRTZ_
org.quartz.jobStore.dataSource=myDS
org.quartz.jobStore.isClustered=true
# 配置数据源
org.quartz.dataSource.myDS.driver=com.mysql.jdbc.Driver
org.quartz.dataSource.myDS.URL=jdbc:mysql://localhost:3306/quartz?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
org.quartz.dataSource.myDS.user=root
org.quartz.dataSource.myDS.password=123456
org.quartz.dataSource.myDS.maxConnections=10
# 配置自启动
org.quartz.startupHook.class=org.quartz.plugins.management.ShutdownHookPlugin
org.quartz.plugin.shutdownhook.cleanShutdown=true
```
3. 编写定时器:创建一个 Quartz 定时器 Job 类,实现 execute 方法。
```java
public class MyJob implements Job {
@Override
public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
// 执行任务的逻辑代码
}
}
```
4. 创建定时器:在 Spring Boot 应用的启动类中创建定时器。
```java
@Configuration
public class QuartzConfig {
@Autowired
private ApplicationContext applicationContext;
@Bean
public JobDetail myJobDetail() {
return JobBuilder.newJob(MyJob.class)
.withIdentity("myJob")
.storeDurably()
.build();
}
@Bean
public Trigger myTrigger() {
SimpleScheduleBuilder scheduleBuilder = SimpleScheduleBuilder.simpleSchedule()
.withIntervalInSeconds(10)
.repeatForever();
return TriggerBuilder.newTrigger()
.forJob(myJobDetail())
.withIdentity("myTrigger")
.withSchedule(scheduleBuilder)
.build();
}
@Bean
public SchedulerFactoryBean schedulerFactory() {
AutowiringSpringBeanJobFactory jobFactory = new AutowiringSpringBeanJobFactory();
jobFactory.setApplicationContext(applicationContext);
Properties properties = new Properties();
properties.setProperty("org.quartz.scheduler.instanceName", "MyQuartzScheduler");
properties.setProperty("org.quartz.scheduler.instanceId", "AUTO");
properties.setProperty("org.quartz.threadPool.class", "org.quartz.simpl.SimpleThreadPool");
properties.setProperty("org.quartz.threadPool.threadCount", "5");
properties.setProperty("org.quartz.threadPool.threadPriority", "5");
properties.setProperty("org.quartz.jobStore.class", "org.quartz.impl.jdbcjobstore.JobStoreTX");
properties.setProperty("org.quartz.jobStore.driverDelegateClass", "org.quartz.impl.jdbcjobstore.StdJDBCDelegate");
properties.setProperty("org.quartz.jobStore.tablePrefix", "QRTZ_");
properties.setProperty("org.quartz.jobStore.dataSource", "myDS");
properties.setProperty("org.quartz.jobStore.isClustered", "true");
properties.setProperty("org.quartz.dataSource.myDS.driver", "com.mysql.jdbc.Driver");
properties.setProperty("org.quartz.dataSource.myDS.URL", "jdbc:mysql://localhost:3306/quartz?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai");
properties.setProperty("org.quartz.dataSource.myDS.user", "root");
properties.setProperty("org.quartz.dataSource.myDS.password", "123456");
properties.setProperty("org.quartz.dataSource.myDS.maxConnections", "10");
properties.setProperty("org.quartz.startupHook.class", "org.quartz.plugins.management.ShutdownHookPlugin");
properties.setProperty("org.quartz.plugin.shutdownhook.cleanShutdown", "true");
SchedulerFactoryBean schedulerFactory = new SchedulerFactoryBean();
schedulerFactory.setQuartzProperties(properties);
schedulerFactory.setAutoStartup(true);
schedulerFactory.setJobFactory(jobFactory);
schedulerFactory.setApplicationContextSchedulerContextKey("applicationContext");
schedulerFactory.setTriggers(myTrigger());
return schedulerFactory;
}
}
```
在上述代码中,创建了一个 JobDetail 对象和一个 Trigger 对象,并将它们绑定在 SchedulerFactoryBean 中。SchedulerFactoryBean 会自动启动 Quartz 定时器,并执行定时任务。
springboot quartz项目集成
对于Spring Boot项目集成Quartz,你可以按照以下步骤进行操作:
1. 添加依赖:在`pom.xml`文件中添加Quartz的依赖。例如,你可以添加以下依赖:
```xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-quartz</artifactId>
</dependency>
```
2. 创建任务类:创建一个继承自`QuartzJobBean`的任务类,实现具体的业务逻辑。例如,你可以创建一个名为`MyJob`的任务类,如下所示:
```java
public class MyJob extends QuartzJobBean {
@Override
protected void executeInternal(JobExecutionContext jobExecutionContext) throws JobExecutionException {
// 在这里编写任务逻辑
}
}
```
3. 配置调度器:在Spring Boot的配置文件(如`application.properties`或`application.yml`)中配置调度器的属性。例如,你可以添加以下属性:
```yaml
spring:
quartz:
job-store-type: memory
properties:
org:
quartz:
scheduler:
instanceName: MyScheduler
instanceId: AUTO
jobStore:
class: org.quartz.simpl.RAMJobStore
```
4. 创建调度器工厂:创建一个调度器工厂类,用于创建调度器实例。例如,你可以创建一个名为`SchedulerFactoryBean`的类:
```java
@Configuration
public class SchedulerFactoryBean {
@Autowired
private ApplicationContext applicationContext;
@Bean
public SchedulerFactoryBean schedulerFactoryBean() {
SchedulerFactoryBean schedulerFactoryBean = new SchedulerFactoryBean();
schedulerFactoryBean.setApplicationContext(applicationContext);
schedulerFactoryBean.setJobFactory(springBeanJobFactory());
// 其他配置属性...
return schedulerFactoryBean;
}
@Bean
public SpringBeanJobFactory springBeanJobFactory() {
AutowiringSpringBeanJobFactory jobFactory = new AutowiringSpringBeanJobFactory();
jobFactory.setApplicationContext(applicationContext);
return jobFactory;
}
}
```
5. 配置任务触发器:创建一个类,用于配置任务触发器,并将任务类与触发器关联。例如,你可以创建一个名为`SchedulerConfig`的类:
```java
@Configuration
public class SchedulerConfig {
@Autowired
private SchedulerFactoryBean schedulerFactoryBean;
@PostConstruct
public void init() throws SchedulerException {
Scheduler scheduler = schedulerFactoryBean.getScheduler();
JobDetail jobDetail = JobBuilder.newJob(MyJob.class)
.withIdentity("myJob")
.storeDurably()
.build();
Trigger trigger = TriggerBuilder.newTrigger()
.withIdentity("myTrigger")
.forJob(jobDetail)
.startNow()
.withSchedule(SimpleScheduleBuilder.simpleSchedule()
.withIntervalInSeconds(10)
.repeatForever())
.build();
scheduler.scheduleJob(jobDetail, trigger);
}
}
```
通过上述步骤,你就可以在Spring Boot项目中集成Quartz,并实现调度任务的功能。请根据你自己的业务需求进行相应的调整和扩展。