@IdCard NPE处理。

src/main/java/cn/quantgroup/xyqb/validator/IdCardValidator.java

 package cn.quantgroup.xyqb.validator;
 
 import cn.quantgroup.xyqb.util.IdcardValidator;
-import cn.quantgroup.xyqb.util.ValidationUtil;
+import org.apache.commons.lang3.StringUtils;
 
 import javax.validation.ConstraintValidator;
 import javax.validation.ConstraintValidatorContext;
@@ -24,12 +24,15 @@ public class IdCardValidator implements ConstraintValidator<IdCard, String> {
     /**
      * 这....true = 校验通过. false = 校验失败
      *
-     * @param idCard 就是那个String
+     * @param idCard  就是那个String
      * @param context
      * @return
      */
     @Override
     public boolean isValid(String idCard, ConstraintValidatorContext context) {
-        return IdcardValidator.isValidate18Idcard(idCard);
+        if (StringUtils.isNotBlank(idCard)) {
+            return IdcardValidator.isValidate18Idcard(idCard);
+        }
+        return true;
     }
 }