问题已经在这里解决但对我不起作用(我猜不是相同的 spring boot 版本)this
尝试编写自定义约束验证程序,以在持久化之前检查帐户电子邮件是否存在。
@Email
@NotNull
@NotBlank
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Constraint(validatedBy = UniqueCompteEmailValidator.class)
@Target({ ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER })
public @interface UniqueCompteEmail {
String message() default "{com.mssmfactory.bacsimulator.uniquecompteemail.message}";
Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};
}
//------------------------------------------ ------------------------------
public class UniqueCompteEmailValidator implements ConstraintValidator<UniqueCompteEmail, String> {
@Autowired
private CompteRepository compteRepository;
@Override
public boolean isValid(String value, ConstraintValidatorContext context) {
return value != null && this.compteRepository.findByEmail(value) == null;
}
}
//------------------------------------------ ------------------------------
@Configuration
public class OtherConfigurations {
//----
@Bean
public Validator validator(@Autowired AutowireCapableBeanFactory autowireCapableBeanFactory) {
ValidatorFactory validatorFactory = Validation.byProvider(HibernateValidator.class).configure()
.constraintValidatorFactory(new SpringConstraintValidatorFactory(autowireCapableBeanFactory))
.buildValidatorFactory();
Validator validator = validatorFactory.getValidator();
return validator;
}
}
//------------------------------------------ ------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.5.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.mssmfactory</groupId>
<artifactId>bacsimulator</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>bacsimulator</name>
<description>BAC Simulator</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
我的问题是 private CompteRepository compteRepository 总是包含 null,并且从我的堆栈跟踪中,我可以看到它正在被 hibernate-validation 实例化,而不是被 spring 实例化并被 hibernate 使用。
有什么想法吗?
最佳答案
通过这个@Component 类更改了 hibernate 的 bean validator 工厂,现在它工作得很好
@Component
public class ValidatorAddingCustomizer implements HibernatePropertiesCustomizer {
private final ObjectProvider<javax.validation.Validator> provider;
public ValidatorAddingCustomizer(ObjectProvider<javax.validation.Validator> provider) {
this.provider = provider;
}
public void customize(Map<String, Object> hibernateProperties) {
Validator validator = provider.getIfUnique();
if (validator != null) {
hibernateProperties.put("javax.persistence.validation.factory", validator);
}
}
}
关于hibernate - 配置 spring 验证和 hibernate 验证,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56782292/