问题
I moved my project from spring boot 2.1.9 to 2.2.0. While starting the project am facing the below error
messages.
What could have caused, am not using hateoas
in my pom.xml
file either.
Caused by: org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'org.springframework.plugin.core.PluginRegistry<org.springframework.hateoas.client.LinkDiscoverer, org.springframework.http.MediaType>' available: expected single matching bean but found 17: modelBuilderPluginRegistry,modelPropertyBuilderPluginRegistry,typeNameProviderPluginRegistry,syntheticModelProviderPluginRegistry,documentationPluginRegistry,apiListingBuilderPluginRegistry,operationBuilderPluginRegistry,parameterBuilderPluginRegistry,expandedParameterBuilderPluginRegistry,resourceGroupingStrategyRegistry,operationModelsProviderPluginRegistry,defaultsProviderPluginRegistry,pathDecoratorRegistry,apiListingScannerPluginRegistry,relProviderPluginRegistry,linkDiscovererRegistry,entityLinksPluginRegistry
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'linkDiscoverers' defined in class path resource [org/springframework/hateoas/config/HateoasConfiguration.class]: Unsatisfied dependency expressed through method 'linkDiscoverers' parameter 0; nested exception is org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'org.springframework.plugin.core.PluginRegistry<org.springframework.hateoas.client.LinkDiscoverer, org.springframework.http.MediaType>' available: expected single matching bean but found 17: modelBuilderPluginRegistry,modelPropertyBuilderPluginRegistry,typeNameProviderPluginRegistry,syntheticModelProviderPluginRegistry,documentationPluginRegistry,apiListingBuilderPluginRegistry,operationBuilderPluginRegistry,parameterBuilderPluginRegistry,expandedParameterBuilderPluginRegistry,resourceGroupingStrategyRegistry,operationModelsProviderPluginRegistry,defaultsProviderPluginRegistry,pathDecoratorRegistry,apiListingScannerPluginRegistry,relProviderPluginRegistry,linkDiscovererRegistry,entityLinksPluginRegistry
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APPLICATION FAILED TO START
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Description:
Parameter 0 of method linkDiscoverers in org.springframework.hateoas.config.HateoasConfiguration
required a single bean, but 17 were found:
- modelBuilderPluginRegistry: defined in null
- modelPropertyBuilderPluginRegistry: defined in null
- typeNameProviderPluginRegistry: defined in null
- syntheticModelProviderPluginRegistry: defined in null
- documentationPluginRegistry: defined in null
- apiListingBuilderPluginRegistry: defined in null
- operationBuilderPluginRegistry: defined in null
- parameterBuilderPluginRegistry: defined in null
- expandedParameterBuilderPluginRegistry: defined in null
- resourceGroupingStrategyRegistry: defined in null
- operationModelsProviderPluginRegistry: defined in null
- defaultsProviderPluginRegistry: defined in null
- pathDecoratorRegistry: defined in null
- apiListingScannerPluginRegistry: defined in null
- relProviderPluginRegistry: defined by method 'relProviderPluginRegistry' in class path resource [org/springframework/hateoas/config/HateoasConfiguration.class]
- linkDiscovererRegistry: defined in null
- entityLinksPluginRegistry: defined by method 'entityLinksPluginRegistry' in class path resource [org/springframework/hateoas/config/WebMvcEntityLinksConfiguration.class]
Pom
<properties>
<java.version>1.8</java.version>
<swagger-springfox.version>2.9.2</swagger-springfox.version>
<sonar.jacoco.execPath>${project.basedir}/target/jacoco.exec</sonar.jacoco.execPath>
<jasypt-spring-boot-starter>2.1.1</jasypt-spring-boot-starter>
<logbook-spring-boot-starter>1.13.0</logbook-spring-boot-starter>
<assertj-swagger>0.8.1</assertj-swagger>
<jacoco-version>0.8.4</jacoco-version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>${swagger-springfox.version}</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>${swagger-springfox.version}</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-spring-web</artifactId>
<version>${swagger-springfox.version}</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-core</artifactId>
<version>${swagger-springfox.version}</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-data-rest</artifactId>
<version>${swagger-springfox.version}</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-bean-validators</artifactId>
<version>${swagger-springfox.version}</version>
</dependency>
回答1:
I had this issue with hateoas and fixed it by editing SwaggerConfiguration.java:
@Configuration
@EnableSwagger2
public class SwaggerConfiguration {
@Bean
public LinkDiscoverers discoverers() {
List<LinkDiscoverer> plugins = new ArrayList<>();
plugins.add(new CollectionJsonLinkDiscoverer());
return new LinkDiscoverers(SimplePluginRegistry.create(plugins));
}
}
回答2:
try this version 2.6.1,i already solve with this way
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.6.1</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.6.1</version>
</dependency>
回答3:
For me this link helped: https://github.com/spring-projects/spring-hateoas/issues/731
In a nutshell i added to my dependencies:
<dependency>
<groupId>org.springframework.plugin</groupId>
<artifactId>spring-plugin-core</artifactId>
<version>2.0.0.RELEASE<</version>
</dependency>
回答4:
So I actually wanted hateoas support and had the same issue. Turned out this happens if you have
<dependency>
<groupId>org.springframework.hateoas</groupId>
<artifactId>spring-hateoas</artifactId>
</dependency>
instead of
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-hateoas</artifactId>
</dependency>
回答5:
I've removed these dependencies as a workaround and worked:
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.4.0</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.4.0</version>
</dependency>
please let me know if worked for you.
回答6:
resolved it, i was happening due to integration when swagger + HATEOAS was used with spring boot 2.2.4.RELEASE
package com.company.springbootworks.swagger;
import java.time.LocalDate;
import java.util.ArrayList;
import java.util.List;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.hateoas.client.LinkDiscoverer;
import org.springframework.hateoas.client.LinkDiscoverers;
import org.springframework.hateoas.mediatype.collectionjson.CollectionJsonLinkDiscoverer;
import org.springframework.http.ResponseEntity;
import org.springframework.plugin.core.SimplePluginRegistry;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger.web.DocExpansion;
import springfox.documentation.swagger.web.ModelRendering;
import springfox.documentation.swagger.web.OperationsSorter;
import springfox.documentation.swagger.web.TagsSorter;
import springfox.documentation.swagger.web.UiConfiguration;
import springfox.documentation.swagger.web.UiConfigurationBuilder;
import springfox.documentation.swagger2.annotations.EnableSwagger2;
@Configuration
@EnableSwagger2
public class SwaggerConfig {
@Bean
public LinkDiscoverers discoverers() {
List<LinkDiscoverer> plugins = new ArrayList<>();
plugins.add(new CollectionJsonLinkDiscoverer());
return new LinkDiscoverers(SimplePluginRegistry.create(plugins));
}
@Bean
public Docket eDesignApi(SwaggerConfigProperties swaggerConfigProperties) {
return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo(swaggerConfigProperties))
.enable(Boolean.valueOf(swaggerConfigProperties.getEnabled())).select()
.apis(RequestHandlerSelectors.any()).paths(PathSelectors.any()).build().pathMapping("/")
.directModelSubstitute(LocalDate.class, String.class).genericModelSubstitutes(ResponseEntity.class)
.useDefaultResponseMessages(Boolean.valueOf(swaggerConfigProperties.getUseDefaultResponseMessages()))
.enableUrlTemplating(Boolean.valueOf(swaggerConfigProperties.getEnableUrlTemplating()));
}
@Bean
UiConfiguration uiConfig(SwaggerConfigProperties swaggerConfigProperties) {
return UiConfigurationBuilder.builder().deepLinking(Boolean.valueOf(swaggerConfigProperties.getDeepLinking()))
.displayOperationId(Boolean.valueOf(swaggerConfigProperties.getDisplayOperationId()))
.defaultModelsExpandDepth(Integer.valueOf(swaggerConfigProperties.getDefaultModelsExpandDepth()))
.defaultModelExpandDepth(Integer.valueOf(swaggerConfigProperties.getDefaultModelExpandDepth()))
.defaultModelRendering(ModelRendering.EXAMPLE)
.displayRequestDuration(Boolean.valueOf(swaggerConfigProperties.getDisplayRequestDuration()))
.docExpansion(DocExpansion.NONE).filter(Boolean.valueOf(swaggerConfigProperties.getFilter()))
.maxDisplayedTags(Integer.valueOf(swaggerConfigProperties.getMaxDisplayedTags()))
.operationsSorter(OperationsSorter.ALPHA)
.showExtensions(Boolean.valueOf(swaggerConfigProperties.getShowExtensions()))
.tagsSorter(TagsSorter.ALPHA).supportedSubmitMethods(UiConfiguration.Constants.DEFAULT_SUBMIT_METHODS)
.validatorUrl(null).build();
}
private ApiInfo apiInfo(SwaggerConfigProperties swaggerConfigProperties) {
return new ApiInfoBuilder().title(swaggerConfigProperties.getTitle())
.description(swaggerConfigProperties.getDescription()).version(swaggerConfigProperties.getApiVersion())
.build();
}
}
and below are the swagger dependencies
<properties>
<java.version>1.8</java.version>
<swagger.version>2.9.2</swagger.version>
<swagger-annotations.version>1.5.21</swagger-annotations.version>
<swagger-models.version>1.5.21</swagger-models.version>
<spring-plugin.version>2.0.0.BUILD-SNAPSHOT</spring-plugin.version>
</properties>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>${swagger.version}</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>${swagger.version}</version>
</dependency>
<dependency>
<groupId>io.swagger</groupId>
<artifactId>swagger-annotations</artifactId>
<version>${swagger-annotations.version}</version>
</dependency>
<dependency>
<groupId>io.swagger</groupId>
<artifactId>swagger-models</artifactId>
<version>${swagger-models.version}</version>
</dependency>
来源:https://stackoverflow.com/questions/58431876/spring-boot-2-2-0-spring-hateoas-startup-issue