交叉字段自定义约束注释不起作用 [英] Cross Field Custom constraint annotation not working
问题描述
我有一个名为 ContactTypeName 的下拉字段，其中包含电话号码，电子邮件等的值和名为的联系人字段 >我想验证输入字段的有效电子邮件地址，如果下拉列表电子邮件被选中...
i有以下bean
@ FieldMatch.List（{
@FieldMatch（first =contactDetail，second =contectTypeName，message =请输入一个有效的电子邮件地址）
public class Contact {
private int contactId = 0;
@NotNull（message =请选择一个联系人类型）
private Integer contectTypeId;
private String contectTypeName;
@NotNull（message =请指定联系人详细信息）
private String contactDetail;
}
我尝试创建一个自定义约束来验证 我对自定义约束具有以下代码： 以及像电子邮件地址 <>，那么使用> contactDetail 字段作为电子邮件正则表达式/ p>
@Target {TYPE，ANNOTATION_TYPE，METHOD，FIELD}）
@Retention（RUNTIME）
@Constraint（validatedBy = FieldMatchValidator.class）
@Documented
public @interface FieldMatch
{
字符串消息（）默认{constraints.fieldmatch};
Class<？> [] groups（）default {};
类<？扩展了Payload> [] payload（）default {};
$ b $ / **
* @return第一个字段
* /
字符串first（）;
/ **
* @return第二个字段
* /
字符串second（）;
/ **
*定义了几个< code> @ FieldMatch< / code>同一元素上的注解
*
* @see FieldMatch
* /
@Target（{TYPE，ANNOTATION_TYPE}）
@Retention（RUNTIME）
@Documented
@interface列表
{
FieldMatch [] value（）;
$ / code>
public class FieldMatchValidator implements ConstraintValidator< FieldMatch，Object>
{
private String firstFieldName;
private String secondFieldName;
私人图案图案;
私人匹配器匹配器;
private static final String EMAIL_PATTERN =
^ [_A-Za-z0-9 -\\\ + +] +（\\。[_A-Za -Z0-9 - ] +）* @
+[A-Za-z0-9 - ] +（\\。[A-Za-z0-9] +）*（\\\ \\ [A-ZA-Z] {2，}）$。
@Override
public void initialize（final FieldMatch constraintAnnotation）
{
firstFieldName = constraintAnnotation.first（）;
secondFieldName = constraintAnnotation.second（）;
pattern = Pattern.compile（EMAIL_PATTERN）;
$ @Override
public boolean isValid（final Object value，final ConstraintValidatorContext context）
{
try
{
final Object firstObj = BeanUtils.getProperty（value，firstFieldName）; //电子邮件地址
final Object secondObj = BeanUtils.getProperty（value，secondFieldName）; // contactType的值
System.out.println（（String）firstObj）;
System.out.println（（String）secondObj）; （（（String）firstObj ==||（String）firstObj == null）&&（String）secondObj！=Email）{
return true ;
} else {
matcher = pattern.matcher（（String）firstObj）;
return matcher.matches（）;
}
//返回firstObj == null&& secondObj == null || firstObj！= null&& firstObj.equals（secondObj）;
}
catch（final exception ignore）
{
//忽略
}
返回true;
}
}
问题在于它没有在表单发布... im使用 Prime Faces 模型对话框，其中要验证的bean被呈现
REF：使用Hibernate Validator进行交叉字段验证（JSR 303）
期待您的建议和指导
JSF 2.0不支持交叉字段尚未验证 https://hibernate.onjira.com/browse/BVAL-214
以使其工作或者使用像 seamfaces 或手动调用验证，如
Validator validator = Validation.buildDefaultValidatorFactory（）。getV alidator（）;
Set< ConstraintViolation<联系人>> violation = validator.validate（contact）;
i have a dropdown field named ContactTypeName which have the values like phone, email etc and an input field named Contact i want to validate the input field for valid email address if the dropdown value Email is selected...
i have the following bean
@FieldMatch.List({
@FieldMatch(first = "contactDetail", second = "contectTypeName", message = "Please Enter a valid email address")
})
public class Contact {
private int contactId = 0;
@NotNull(message="Please Select a Contact Type")
private Integer contectTypeId;
private String contectTypeName;
@NotNull(message="Please Specify Contact Details")
private String contactDetail;
}
im trying to create a custom constraint which will validate the contactDetail field against an email regex if the contactTypeName field will have the value Email
i have the following code for the custom constraint
@Target({TYPE, ANNOTATION_TYPE,METHOD, FIELD})
@Retention(RUNTIME)
@Constraint(validatedBy = FieldMatchValidator.class)
@Documented
public @interface FieldMatch
{
String message() default "{constraints.fieldmatch}";
Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};
/**
* @return The first field
*/
String first();
/**
* @return The second field
*/
String second();
/**
* Defines several <code>@FieldMatch</code> annotations on the same element
*
* @see FieldMatch
*/
@Target({TYPE, ANNOTATION_TYPE})
@Retention(RUNTIME)
@Documented
@interface List
{
FieldMatch[] value();
}
}
and the validator like
public class FieldMatchValidator implements ConstraintValidator<FieldMatch, Object>
{
private String firstFieldName;
private String secondFieldName;
private Pattern pattern;
private Matcher matcher;
private static final String EMAIL_PATTERN =
"^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"
+ "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";
@Override
public void initialize(final FieldMatch constraintAnnotation)
{
firstFieldName = constraintAnnotation.first();
secondFieldName = constraintAnnotation.second();
pattern = Pattern.compile(EMAIL_PATTERN);
}
@Override
public boolean isValid(final Object value, final ConstraintValidatorContext context)
{
try
{
final Object firstObj = BeanUtils.getProperty(value, firstFieldName);//email address
final Object secondObj = BeanUtils.getProperty(value, secondFieldName);//value of the contactType
System.out.println((String) firstObj);
System.out.println((String) secondObj);
if(((String) firstObj == "" || (String) firstObj == null ) && (String) secondObj != "Email"){
return true;
}else{
matcher = pattern.matcher((String) firstObj);
return matcher.matches();
}
//return firstObj == null && secondObj == null || firstObj != null && firstObj.equals(secondObj);
}
catch (final Exception ignore)
{
// ignore
}
return true;
}
}
the problem is that its not firing on the form post... im using Prime Faces model dialog in which the bean to be validated is rendered
REF: Cross field validation with Hibernate Validator (JSR 303)
looking forward to your suggestions and guidance
JSF 2.0 does not support cross field validation yet https://hibernate.onjira.com/browse/BVAL-214
to make it work either use a library like seamfaces or call the validation manually like
Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
Set<ConstraintViolation<Contact>> violations = validator.validate(contact);
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