@AssertTrue当使用bean验证来验证对象的状态时,每当调用验证时,使用注释的方法就会被调用4次。每次调用只应调用一次。
Hibernate 验证器版本:5.1.3.Final
这是一个例子:
对于以下类别的摩托车:
import javax.validation.constraints.AssertTrue;
class Motorcycle{
private int fuel;
private int tireDurability;
@AssertTrue(message = "motorcycle.not.available.to.use")
public boolean isAvailable(){
return fuel > 0 && tireDurability > 0;
}
public void toUse(){...}
}
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以及主要的:
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;
public class Main{
public static void main(String []args){
ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
Validator validator = factory.getValidator();
Set<ConstraintViolation<Motorcycle>> violations = validator.validate(new Motorcycle());
}
}
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validator.validate(new Motorcycle())调用时,该方法isAvailable()被调用4次。
任何人都可以帮助我解决这种情况吗?这是一个错误吗?我该如何解决这个问题?
java validation custom-validators hibernate-validator bean-validation