spring boot项目中的FF4J配置错误

Question

我正在尝试在我的项目中使用FF4J，并且我已经在我的build.gradle文件中添加了以下依赖项。

org.ff4j:ff4j-spring-boot-starter:1.8.7,
org.ff4j:ff4j-web:1.8.7

在添加这些依赖项后，我在服务器启动过程中观察到以下错误：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'api' defined in class path resource [org/ff4j/spring/boot/web/api/config/FF4jSwaggerConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [springfox.documentation.spring.web.plugins.Docket]: Factory method 'api' threw exception; nested exception is java.lang.NoSuchMethodError: springfox.documentation.service.ApiInfo.<init>(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Lspringfox/documentation/service/Contact;Ljava/lang/String;Ljava/lang/String;Ljava/util/Collection;)V
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1128)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1022)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:512)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:754)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
at com.adp.mnc.gcc.das.GCCDataAccessServiceSpringBootApplication.main(GCCDataAccessServiceSpringBootApplication.java:89)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [springfox.documentation.spring.web.plugins.Docket]: Factory method 'api' threw exception; nested exception is java.lang.NoSuchMethodError: springfox.documentation.service.ApiInfo.<init>(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Lspringfox/documentation/service/Contact;Ljava/lang/String;Ljava/lang/String;Ljava/util/Collection;)V
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588)
... 21 common frames omitted
Caused by: java.lang.NoSuchMethodError: springfox.documentation.service.ApiInfo.<init>(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Lspringfox/documentation/service/Contact;Ljava/lang/String;Ljava/lang/String;Ljava/util/Collection;)V
at org.ff4j.spring.boot.web.api.config.FF4jSwaggerConfig.apiInfo(FF4jSwaggerConfig.kt:57)
at org.ff4j.spring.boot.web.api.config.FF4jSwaggerConfig.api(FF4jSwaggerConfig.kt:52)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162)
... 22 common frames omitted

我猜这是FF4J和Springfox之间的版本兼容性问题。我使用的springfox版本是2.4.0。我尝试了多种组合，但是没有任何线索。

请检查并帮助。谢谢。

Answer 1

我可以确认当前版本的ff4j使用的是Swagger 3.0.0，它似乎不能向后兼容2.4.0。

多个选项：

当您公开-

• 和when控制台时，应该使用spring-boot-starter。这个组件应该是独立的组件，没有你的代码。然后，在微服务中，您只使用需要的存储导入ff4j库，并使用sample code和video
• You更新您的spring-fox依赖项。