> For the complete documentation index, see [llms.txt](https://jack80342.gitbook.io/spring-boot/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jack80342.gitbook.io/spring-boot/iv.-spring-boot-features/39.-quartz-scheduler.md).

# 39. Quartz调度器

Spring Boot包含有`spring-boot-starter-quartz`Starter，方便了使用[Quartz调度器](http://www.quartz-scheduler.org/)。如果Quartz可用，调度器会被自动配置（通过SchedulerFactoryBean抽象）。

以下类型的bean会被自动捡起并关联到调度器：

* `JobDetail`:定义一个特别的Job。`JobDetail`实例能够容易地用`JobBuilder`API创建
* `Calendar`
* `Trigger`:定义何时一个特别的Job被触发

默认的，一个内存中`JobStore`会被使用。但是，配置一个基于JDBC的store是可能的。如果在你的应用中`DataSource`bean可用，而且`spring.quartz.job-store-type`属性如下配置：

```
spring.quartz.job-store-type=jdbc
```

当jdbc store被使用,模式能够在启动时被初始化：

```
spring.quartz.jdbc.initialize-schema=always
```

**注** 数据库会默认被检查，而且会被初始化（使用由Quartz库提供的标准脚本）。也可以使用`spring.quartz.jdbc.schema`属性提供一个自定义脚本。

Quartz调度器的配置能够使用Quartz配置属性（查看`spring.quartz.properties.*`），和`SchedulerFactoryBeanCustomizer`bean（允许程序化的`SchedulerFactoryBean`配置）来自定义 。

Job能够定义setter来注入数据映射属性。普通的bean也能够用相似的行为来注入：

```java
public class SampleJob extends QuartzJobBean {

    private MyService myService;
    private String name;

    // Inject "MyService" bean
    public void setMyService(MyService myService) { ... }

    // Inject the "name" job data property
    public void setName(String name) { ... }

    @Override
    protected void executeInternal(JobExecutionContext context)
            throws JobExecutionException {
        ...
    }

}
```


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