如何在自定义验证注解中使用椭圆

Question

这是我创建用于验证名称的自定义注释的代码
有效名称.java

package custom.Annotation;
import java.lang.annotation.*;
import net.sf.oval.configuration.annotation.Constraint;
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.LOCAL_VARIABLE)
@Constraint(checkWith=NameValidator.class)
public @interface ValidName {
String  message() default NameValidator.message;
}

这是我的约束类代码

package custom.Annotation;
import net.sf.oval.Validator;
import net.sf.oval.configuration.annotation.AbstractAnnotationCheck;
import net.sf.oval.context.OValContext;
import net.sf.oval.exception.OValException;
import play.Logger;
import java.util.regex.Pattern;
public class NameValidator extends AbstractAnnotationCheck<ValidName>
{    
public final static String message="custom.message";
private static final String letter = "[a-zA-Z]";
public static final Pattern VALID_PATTERN = Pattern.compile(letter);

public static boolean isValidText(String userName) {
    return VALID_PATTERN.matcher(userName).matches();
}


@Override
public void configure(ValidName annotation) {
    setMessage(annotation.message());
}
@Override
public boolean isSatisfied(Object validatedObject, Object valueToValidate, OValContext context,
                           Validator validator) throws OValException {
    try
    {
        if (valueToValidate == null) {
            return false;
        }
    }catch (Exception e){
        e.getMessage();
    }
           return` isValidText(valueToValidate.toString()`); 
}
}

当我将@ValidName 应用于任何局部变量时，什么也没发生 而且我也无法调试程序。有什么建议吗？

Answer 1

您需要通过调用oval validation库的validate方法来使用椭圆验证。

@Autowired
@Qualifier("ovalValidator")
private Validator ovalValidator;            

List<ConstraintViolation> violations = null;
violations = ovalValidator.validate(objectToValidate);