记住孩子!您应该检查变量是否为null;)。很抱歉这个问题有这么简单的解决方案。脑滞后是真实的! 如果有人知道如何在持久化(更新)之前配置persistence.xml以检查验证,请发表评论,这个问题我还没有解决。
我试图在hibernate中创建自定义验证注释。遗憾的是在测试期间(使用Validator和ValidatorFactory)我很遗憾,我不明白为什么:
javax.validation.ValidationException: HV000028: Unexpected exception during isValid call.
这是我的注释:
@Documented
@Constraint(validatedBy=PeselValidator.class)
@Target({ElementType.FIELD,ElementType.METHOD,ElementType.ANNOTATION_TYPE})
@Retention(RetentionPolicy.RUNTIME)
public @interface MyPesel {
String message() default "{wrong.pesel.format}";
Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};
}
public class PeselValidator implements ConstraintValidator<MyPesel,String>{
@Override
public boolean isValid(String arg0, ConstraintValidatorContext arg1) {
IF(ARG0==NULL)
RETURN FALSE; //!!!!!!!!!!!!!!
//arg0.matches("^\\d{4}[1-31]\\d{5}$")
if(arg0.length()==11)
return true;
else
return false;
}
}
这是我的作者代码:
@Entity
public class Author {
@Id
@GeneratedValue
private int Id;
@NotNull
@Size(min=5,max=30)
private String name;
@NotNull
@MyPesel
private String pesel;
@ManyToMany
@JoinColumn(name="book_id")
private Collection<Book> book= new ArrayList<>();
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPesel() {
return pesel;
}
public void setPesel(String pesel) {
this.pesel = pesel;
}
}
并测试:
@Test
public void goodBookBadAuthor() {
Book book=new Book();
book.setTitle("quite good title");
book.getAuthor().add(new Author());
Author author=new Author();
author.setName("y");
author.setPesel("abc");
book.getAuthor().add(author);
Validator validator=validatorFactory.getValidator();
Set<ConstraintViolation<Book>> constraintViolations=validator.validate(book);
assertEquals(2,constraintViolations.size());
}
第二个问题是,即使我不使用@Pesel
测试也没关系,但是当我想用entityManager(使用persist())向数据库添加内容时,hibernate不会检查ma验证。我读到需要更改验证模式。我改变了它,但它不起作用。我真的希望你们能帮助我。有我的persistence.xml。
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
version="2.1">
<persistence-unit name="ormBook">
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<class>bean.Book</class>
<class>bean.Author</class>
<properties>
<property name="javax.persistence.jdbc.driver" value="com.mysql.cj.jdbc.Driver" />
<property name="javax.persistence.jdbc.url"
value="jdbc:mysql://127.0.0.1:3307/db_hibernate_3?useSSL=true&serverTimezone=UTC&logger=Slf4JLogger&profileSQL=true" />
<property name="javax.persistence.jdbc.user" value="root" />
<property name="javax.persistence.jdbc.password" value="jbjb123" />
<property name="javax.persistence.validation.mode" value="AUTO"/>
<property name="javax.persistence.validation.group.pre-persist" value="javax.validation.groups.Default" />
<property name="javax.persistence.validation.group.pre-update" value="javax.validation.groups.Default" />
<property name="javax.persistence.validation.group.pre-remove" value=""/>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect" />
<property name="hibernate.connection.isolation" value="2" />
<property name="hibernate.hbm2ddl.auto" value="create" />
<property name="hibernate.connection.pool_size" value="10" />
</properties>
</persistence-unit>
</persistence>
答案 0 :(得分:1)
在这种情况下,我相信你可以使用@Pattern注释,我相信。
根据我的经验,编写自定义注释会使事情变得更复杂,而hibernate提供的验证对于您可能需要的一切都很有用。
其他所有内容都应该在上面的图层中处理。