When I add Swagger to Spring Boot project, I get error I mentioned.
I tried a lot but couldn't find the problem.
Error
Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/core/metrics/ApplicationStartup
Main class
@SpringBootApplication
@Import({SwaggerConfiguration.class})
public class ExampleMain {
public static void main(String[] args) {
SpringApplication.run(ExampleMain.class, args);
}
}
pom.xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.7.4</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>3.0.0</version>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>3.0.0</version>
</dependency>
SwaggerConfiguration class
@Configuration
@EnableSwagger2
public class SwaggerConfiguration {
@Bean
public Docket api() {
return new Docket(DocumentationType.SWAGGER_2).select()
.apis(RequestHandlerSelectors.basePackage("com.example.rest")).paths(PathSelectors.any())
.build();
}
}
Why does this problem occur, How can I fix?
