在Spring Boot中从application.yml文件读取编号

Question

step 1:

I wanted to read the configuration file on Spring for minutesو Like the image below:

I used this code:

Environment environment = context.getEnvironment();
log.info("output number:", environment.getProperty("shafagh.job.msg.cron"));

Output:

output number: 0 0/55 8-13 

But this whole line is back, I just want to return a number (0/55)

step 2:

convert 0/55 to time or int ?

Answer 1

OK, for step 1 , just parse the string. There are many possible ways, but i think this one is sufficient:

public static void main(String[] args) {
    String cron = "0 0/55 8-13 ? * SAT,SUN,MON,TUE,WED";
    String[] parts = cron.split("\\s");
    System.out.println("Wanted part is: " + parts[1]); // "0/55"
}

For step 2 , you will need to understand what this expression really means and how you can represent that in Java. I personally have no idea what you really need from that part (just the frequency? the offset? both of them?) so I cannot answer that part. Do you know why you want this to be converted into another type than string?