springboot rest swagger：初始化bean时出错

Question

null

代码构建良好，但当我运行它时，它会在下面抛出错误

org.springframework.beans.factory.UnsatisfiedDependencyException: 
    Error creating bean with name 'requestMappingHandlerMapping' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration 

$EnableWebMvcConfiguration.class]:
 Unsatisfied dependency expressed through method 'requestMappingHandlerMapping' parameter 1;
nested exception is org.springframework.beans.factory.BeanCreationException:
 Error creating bean with name 'mvcConversionService' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration

$EnableWebMvcConfiguration.class]:
 Bean instantiation via factory method failed;
 nested exception is org.springframework.beans.BeanInstantiationException:
 Failed to instantiate [org.springframework.format.support.FormattingConversionService]: 
Factory method 'mvcConversionService' threw exception; 
nested exception is org.springframework.beans.factory.BeanCreationException:
 Error creating bean with name 'jsonSchemaConverter' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]:
     Bean instantiation via factory method failed;
nested exception is org.springframework.beans.BeanInstantiationException:
 Failed to instantiate [org.springframework.data.rest.webmvc.json.PersistentEntityToJsonSchemaConverter]:
     Factory method 'jsonSchemaConverter' threw exception;
nested exception is org.springframework.beans.factory.BeanCreationException: 
     Error creating bean with name 'defaultConversionService' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]:
     Bean instantiation via factory method failed;  
nested exception is org.springframework.beans.BeanInstantiationException: 
     Failed to instantiate [org.springframework.format.support.DefaultFormattingConversionService]:
     Factory method 'defaultConversionService' threw exception; 
nested exception is org.springframework.beans.factory.BeanCreationException: 
     Error creating bean with name 'repositoryInvokerFactory' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]:
     Bean instantiation via factory method failed;

nested exception is org.springframework.beans.BeanInstantiationException:
 nested exception is org.springframework.beans.BeanInstantiationException:
     Failed to instantiate [org.springframework.data.repository.support.RepositoryInvokerFactory]:
     Factory method 'repositoryInvokerFactory' threw exception;

nested exception is java.lang.NoSuchMethodError:      org.springframework.plugin.core.PluginRegistry.of(Ljava/util/List;)Lorg/springframework/plugin/core/PluginRegistry;   

Answer 1

我也有同样的问题。我的方法是：

Springfox使用了过时的spring-plugin-core版本，并且与spring boot 2.2.5不兼容。Springfox似乎不再维护；迁移到不同的spring-swagger-bridge，如springdoc-openapi：https://springdoc.github.io/springdoc-openapi-demos/

nested exception is org.springframework.beans.BeanInstantiationException:
Failed to instantiate [org.springframework.data.repository.support.RepositoryInvokerFactory]:
Factory method 'repositoryInvokerFactory' threw exception; nested exception is java.lang.NoSuchMethodError:
'org.springframework.plugin.core.PluginRegistry org.springframework.plugin.core.PluginRegistry.of(java.util.List)'

From nosuchmethoderror：org.springframework.plugin.core.pluginregistry.getpluginordefaultfor：

• SpringFox导入了Spring-plugin-core的1.2.0版。Spring Boot 2.2.5需要版本2.0.0。发布
• Springfox赢得进口抽奖；测试失败B/C Spring Boot找不到它的方法。
• 显式导入2.0.0.release会使springfox夭折。
• SpringFox的最新版本是2.9.2；即使是3.0.0快照也无法解决此问题:https://github.com/springfox/springfox/issues/2932

>

Springfox显然被抛弃了：Springfox swagger在spring boot 2.2.0中无法工作

解决方案是迁移到不同的spring-swagger桥。

最有可能的候选者是springdoc-openapi:https://springdoc.github.io/springdoc-openapi-demos/

<!-- org.springdoc for swagger setup  -->
<dependency>
    <groupId>org.springdoc</groupId>
    <artifactId>springdoc-openapi-core</artifactId>
    <version>1.1.49</version>
    <exclusions>
        <exclusion>
            <groupId>io.github.classgraph</groupId>
            <artifactId>classgraph</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId>org.springdoc</groupId>
    <artifactId>springdoc-openapi-ui</artifactId>
    <version>1.1.49</version>
</dependency>