Java bean Validator的使用

public class Bean{

     @NotBlank(message="姓名不能为空")

     private String name;

     @NotBlank(message="年龄不能为空")

     private String age;

     @NotNull(message="地址不能为空")

     @valid

     private Address address；

}

public class Address{

     @NotBlank(message="门牌号不能为空")

     private String code;

}

test(){

     Validator validation = Validation.buildDefaultValidatorFactory().getValidator();

        Object object = new Object();//要校验的对象

        Set<ConstraintViolation<Object>>  validations = validation.validate(object);

        if(!validations.isEmpty()){

            Iterator<ConstraintViolation<Object>> iterators    =validations.iterator();

            StringBuilder sBuilder = new StringBuilder();

            while(iterators.hasNext()){

                sBuilder.append(iterators.next().getMessage());

            }

        }

}