org.springframework.scheduling.config

## 类 CronTask

- java.lang.Object
- - org.springframework.scheduling.config.Task
  - - org.springframework.scheduling.config.TriggerTask
    - - org.springframework.scheduling.config.CronTask

-     public class CronTask
      extends TriggerTask

  `TriggerTask` implementation defining a `Runnable` to be executed according to a standard cron expression.
  从以下版本开始:
    3.2
  作者:
    Chris Beams
  另请参阅:
    `Scheduled.cron()`, `ScheduledTaskRegistrar.addCronTask(CronTask)`

- - ### 构造器概要

    构造器
    构造器和说明
    `CronTask(Runnable runnable, CronTrigger cronTrigger)` Create a new `CronTask`.
    `CronTask(Runnable runnable, String expression)` Create a new `CronTask`.

  - ### 方法概要

    所有方法 实例方法 具体方法
    限定符和类型 | 方法和说明
    --- | ---
    `String` | `getExpression()` Return the cron expression defining when the task should be executed.

    - ### 从类继承的方法 org.springframework.scheduling.config.TriggerTask

      `getTrigger`

    - ### 从类继承的方法 org.springframework.scheduling.config.Task

      `getRunnable, toString`

    - ### 从类继承的方法 java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### 构造器详细资料

    - #### CronTask

          public CronTask(Runnable runnable,
                          String expression)

      Create a new `CronTask`.
      参数:
        `runnable` - the underlying task to execute
        `expression` - the cron expression defining when the task should be executed

    - #### CronTask

          public CronTask(Runnable runnable,
                          CronTrigger cronTrigger)

      Create a new `CronTask`.
      参数:
        `runnable` - the underlying task to execute
        `cronTrigger` - the cron trigger defining when the task should be executed

  - ### 方法详细资料

    - #### getExpression

          public String getExpression()

      Return the cron expression defining when the task should be executed.