11
좋은 오후, 나는 콩 검사기 (JSR 303) 내에서 서비스를 주입하는 데 문제가ConstraintValidator에 주입한다 서비스 [콩 검사기 - JSR 303] 봄
. 유효성 검사를 수행 할 것이지만 데이터베이스에서이 레코드의 유효성을 검사해야합니다.
내 서비스를 사용할 때 NullPointerException을 throw합니다.
예외 :
Exception in thread "main" javax.validation.ValidationException: HV000028: Unexpected exception during isValid call.
at org.hibernate.validator.internal.engine.ConstraintTree.validateSingleConstraint(ConstraintTree.java:294)
at org.hibernate.validator.internal.engine.ConstraintTree.validateConstraints(ConstraintTree.java:164)
at org.hibernate.validator.internal.engine.ConstraintTree.validateConstraints(ConstraintTree.java:125)
at org.hibernate.validator.internal.metadata.core.MetaConstraint.validateConstraint(MetaConstraint.java:86)
at org.hibernate.validator.internal.engine.ValidatorImpl.validateConstraint(ValidatorImpl.java:442)
at org.hibernate.validator.internal.engine.ValidatorImpl.validateConstraintsForDefaultGroup(ValidatorImpl.java:387)
at org.hibernate.validator.internal.engine.ValidatorImpl.validateConstraintsForCurrentGroup(ValidatorImpl.java:351)
at org.hibernate.validator.internal.engine.ValidatorImpl.validateInContext(ValidatorImpl.java:303)
at org.hibernate.validator.internal.engine.ValidatorImpl.validate(ValidatorImpl.java:133)
at net.pontoall.hemisphere.core.validation.impl.TesteValidator.main(TesteValidator.java:25)
Caused by: java.lang.NullPointerException
at net.pontoall.hemisphere.core.validation.impl.UsuarioValidatorImpl.doCheckLogin(UsuarioValidatorImpl.java:48)
at net.pontoall.hemisphere.core.validation.impl.UsuarioValidatorImpl.isValid(UsuarioValidatorImpl.java:26)
at net.pontoall.hemisphere.core.validation.impl.UsuarioValidatorImpl.isValid(UsuarioValidatorImpl.java:1)
at org.hibernate.validator.internal.engine.ConstraintTree.validateSingleConstraint(ConstraintTree.java:291)
... 9 more
주석 :
@Target(value = ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Constraint(validatedBy = UsuarioValidatorImpl.class)
public @interface UsuarioValidator {
String message() default "{net.pontoall.hemisphere.validation.UsuarioValidator.message}";
Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};
}
ValidatorImpl :
public class UsuarioValidatorImpl implements ConstraintValidator<UsuarioValidator, Usuario> {
@Autowired
private IUsuarioService service;
@Override
public void initialize(UsuarioValidator arg0) {
}
@Override
public boolean isValid(Usuario entidade, ConstraintValidatorContext ctx) {
try {
return (this.doCheckLogin(entidade, ctx) && this.doCheckEmail(entidade, ctx));
} catch (HemisphereException e) {
e.printStackTrace();
return false;
}
}
private boolean doCheckLogin(Usuario entidade, ConstraintValidatorContext ctx) throws HemisphereException {
ctx.buildConstraintViolationWithTemplate("{net.pontoall.hemisphere.validation.UsuarioValidator.login.message}").addConstraintViolation();
if (entidade.getId() == null) {
// Novo Usuário
Usuario original = service.buscarPorLogin(entidade.getLogin());
if (original == null) {
return true;
}
return false;
} else {
Usuario original = service.obter(entidade.getId());
if (original == null) {
return true;
} else {
if (original.getLogin().equals(entidade.getLogin()) && original.getId().equals(entidade.getId())) {
return true;
}
}
return false;
}
}
private boolean doCheckEmail(Usuario entidade, ConstraintValidatorContext ctx) {
ctx.buildConstraintViolationWithTemplate("{net.pontoall.hemisphere.validation.UsuarioValidator.email.message}").addConstraintViolation();
if (entidade.getId() == null) {
// Novo Usuário
Usuario original = service.buscarPorEmail(entidade.getEmail());
if (original == null) {
return true;
}
return false;
} else {
Usuario original = service.obter(entidade.getId());
if (original == null) {
return true;
} else {
if (original.getEmail().equals(entidade.getEmail()) && original.getId().equals(entidade.getId())) {
return true;
}
}
return false;
}
}
}
Spring MVC를 사용하고 계시다면, Spring MVC의 설정을 보여 주실 수 있습니다. –