How do you configure the timing of spring scheduled tasks?

There are two ways to configure scheduled tasks in Spring: annotation-based and XML-based configurations.

1. Commentary method:
2. Add the @Scheduled annotation to the method in the scheduled task.
3. Specify the time expression for task execution using the cron attribute. For example, @Scheduled(cron = “0 0 0 * * ?”) signifies the task will be executed at midnight every day.
4. XML configuration method:
5. Add the following code to the Spring configuration file:
   
   
   
   
   
6. Specify the time expression for task execution using the cron attribute.

The meanings of each field in the cron expression in the above two ways are as follows:

秒（0-59） 分钟（0-59） 小时（0-23） 日期（1-31） 月份（1-12） 星期（1-7或SUN-SAT） 年份（可选，留空表示任意年份）

For example, the cron expression “0 0 0 * * ?” means that the task will run every day at midnight. For more information on using cron expressions, please refer to the relevant documentation.