我已经按照文档( http://docs.spring.io/spring/docs/4.0.x/spring-framework-reference/html/validation.html )中给出的内容配置了一个 JSR-303 自定义验证器，并在类路径上使用了 LocalValidatorFactoryBean 和 Hibernate 验证器。然而，我的验证器只是拒绝启动。我在这里放置了一个简单的测试项目( https://github.com/abhijitsarkar/java/tree/master/spring-jsr-303 )，以及一个失败的单元测试。如果您决定看一看，只需克隆它并运行gradlew clean test从根目录。
我正在使用 Spring 框架 4.0.2.RELEASE 和 Hibernate 验证器 5.0.3.Final。
验证中的方法:
public Coffee serve(@ValidOrder(Coffee.Blend.class) final String blend) {
ValidOrder 注释:
@Documented
@Constraint(validatedBy = {OrderValidator.class})
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD,
ElementType.FIELD,
ElementType.ANNOTATION_TYPE,
ElementType.CONSTRUCTOR,
ElementType.PARAMETER})
@NotNull
public @interface ValidOrder {
OrderValidator 验证器:
public class OrderValidator implements ConstraintValidator<ValidOrder, String> {
Spring 配置:
@Configuration
@ComponentScan(basePackages = "name.abhijitsarkar.coffeehouse")
@EnableAspectJAutoProxy
public abstract class AppConfig {
@Bean
public LocalValidatorFactoryBean validator() {
return new LocalValidatorFactoryBean();
}
}
依赖项:
dependencies {
compile(
[group: 'javax.inject', name: 'javax.inject', version: injectApiVersion],
[group: 'javax.validation', name: 'validation-api', version: beanValidationApiVersion],
[group: 'javax.annotation', name: 'javax.annotation-api', version: annotationApiVersion],
[group: 'org.springframework', name: 'spring-beans', version: springVersion],
[group: 'org.springframework', name: 'spring-context', version: springVersion],
[group: 'org.springframework', name: 'spring-aop', version: springVersion],
[group: 'org.aspectj', name: 'aspectjrt', version: aspectjVersion]
)
runtime(
[group: 'org.hibernate', name: 'hibernate-validator', version: hibernateValidatorVersion],
[group: 'javax.el', name: 'javax.el-api', version: elVersion],
[group: 'org.glassfish.web', name: 'javax.el', version: glassfishElVersion],
[group: 'org.aspectj', name: 'aspectjweaver', version: aspectjVersion]
)
请您参考如下方法:
@Validated其他方法的注释不会搜索内联约束注释。@Configuration
@ComponentScan(basePackageClasses = {SpringPackageComponentScanMarker.class})
@EnableAspectJAutoProxy
public abstract class AppConfig {
@Bean
public MethodValidationPostProcessor methodValidationPostProcessor() {
final MethodValidationPostProcessor methodValidationPostProcessor = new MethodValidationPostProcessor();
methodValidationPostProcessor.setValidator(validator());
return methodValidationPostProcessor;
}
@Bean
public LocalValidatorFactoryBean validator() {
final LocalValidatorFactoryBean localValidatorFactoryBean = new LocalValidatorFactoryBean();
return localValidatorFactoryBean;
}
}
...
@Service
@Validated
public class SpringBarista extends Barista {
引用手册中讨论与 JSR-303 集成的部分方便地省略了这 2 个关键点，否则 BV 不会启动。这只是导致我进行了 6 小时的调试和头发撕裂，我做了文档所说的一切，但 BV 只会简单地没有开始。我最终不得不通过 Spring 源代码进行调试才能理解这一点。必须有一种更简单的方法，我不能是唯一遇到这个问题的人。创建了 JIRA SPR-11473让他们更新文档。
