从 Spring Boot application.yml 文件中注入 @Scheduled fixedRate 值
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Inject @Scheduled fixedRate value from Spring Boot application.yml file
提问by Juan Carlos González
I know I can inject the value from properties file with the following syntax:
我知道我可以使用以下语法从属性文件中注入值：
@Scheduled(fixedRate=${myRate})
public void getSchedule(){
System.out.println("in scheduled job");
}
However I can't guess how to accomplish the same if the configuration is in YAML file.
但是，如果配置在 YAML 文件中，我无法猜测如何完成相同的操作。
Thanks in advance,
提前致谢，
回答by Wajax
In my application.properties (YAML) I put this
在我的 application.properties (YAML) 我把这个
console:
fetchMetrics: 5000
Then in my simple Task class I push the definition :
然后在我的简单 Task 类中，我推送定义：
@Scheduled(fixedRateString ="${console.fetchMetrics}", initialDelay=1000)
public void fetchMetrics() {
logger.info("What's up ?");
}
Please notice that fixedRateexpects a longand you want to inject a placeholder, you will need fixedRateString
请注意，fixedRate期望 along并且您要注入占位符，您将需要fixedRateString
回答by abhishek ringsia
I find it easy once done for my project.
Change fixedRateto fixedRateStringand put the property key in double quoteslike this:
我发现我的项目完成后很容易。
更改fixedRate到fixedRateString而属性键double quotes是这样的：
@Scheduled(fixedRateString="${myRate}")
public void getSchedule() {
System.out.println("Scheduled job");
}
回答by Dalila Serpa
In my application I use the annotation PropertySourceon my config class:
在我的应用程序中，我PropertySource在我的配置类上使用了注释：
@PropertySource("application-${spring.profiles.active}.yml")
@PropertySource("application-${spring.profiles.active}.yml")
spring.profiles.activereturns the active profile (dev, test, etc). My properties file name is application-dev.yml
spring.profiles.active返回活动配置文件（开发、测试等）。我的属性文件名是 application-dev.yml
The annotation @Scheduledworks with property injection.
Dont forget the annotation with prefix configuration on your class.
该注释@Scheduled适用于属性注入。不要忘记类上带有前缀配置的注释。
