How to validate the size of @RequestParam of type List

Question

I\'m creating a Spring-Boot microservice REST API that expects @RequestParam of type List. How can I validate that the list contains

Answer 1

You can use a Class and @RequestBody for parameter validation, which is successful like me.

public class Test {
    @Size(min = 1 , max = 5)
    private List programEndTime;

    public List getProgramEndTime() {
        return programEndTime;
    }

    public void setProgramEndTime(List programEndTime) {
        this.programEndTime = programEndTime;
    }
}

    @PostMapping("test")
    public void test( @Valid   @RequestBody Test test,
                     BindingResult result){
        if (result.hasErrors()) {
            System.out.println("Error");
        } else {
            System.out.println("OK");
        }
        System.out.println(",.,.");
    }