Error reported: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.Nul problems and solutions

Spring Boot integrates Swagger to generate Web API documentation.

Version information: spring boot: 2.7.11, swagger: 2.9.2

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [com.yjq.miciweb.MiciWebApplication]; nested exception is java.io.FileNotFoundException: class path resource [springfox/documentation/spi/service/ParameterBuilderPlugin.class] cannot be opened because it does not exist
	at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:609) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:310) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:249) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:206) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:174) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:331) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:247) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:311) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:112) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:748) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:564) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.11.jar:2.7.11]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) [spring-boot-2.7.11.jar:2.7.11]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) [spring-boot-2.7.11.jar:2.7.11]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-2.7.11.jar:2.7.11]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) [spring-boot-2.7.11.jar:2.7.11]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) [spring-boot-2.7.11.jar:2.7.11]
	at com.yjq.miciweb.MiciWebApplication.main(MiciWebApplication.java:15) [classes/:na]
Caused by: java.io.FileNotFoundException: class path resource [springfox/documentation/spi/service/ParameterBuilderPlugin.class] cannot be opened because it does not exist
	at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:199) ~[spring-core-5.3.27.jar:5.3.27]
	at org.springframework.core.type.classreading.SimpleMetadataReader.getClassReader(SimpleMetadataReader.java:55) ~[spring-core-5.3.27.jar:5.3.27]
	at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:48) ~[spring-core-5.3.27.jar:5.3.27]
	at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:103) ~[spring-core-5.3.27.jar:5.3.27]
	at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.createMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:86) ~[spring-boot-2.7.11.jar:2.7.11]
	at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.getMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:73) ~[spring-boot-2.7.11.jar:2.7.11]
	at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:81) ~[spring-core-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:696) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getInterfaces(ConfigurationClassParser.java:1024) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassParser.processInterfaces(ConfigurationClassParser.java:385) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:331) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:249) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:198) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:303) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:249) ~[spring-context-5.3.27.jar:5.3.27]
	at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:599) ~[spring-context-5.3.27.jar:5.3.27]
	... 17 common frames omitted


Process finished with exit code 1

Reason for the error: The path matching used by Springfox is based on AntPathMatcher, while Spring Boot 2.6.X uses PathPatternMatcher

solution:

Configure in application.yaml:

spring:
  mvc:
    pathmatch:
      matching-strategy: ant_path_matcher

Treating the symptoms rather than the root cause. When I used it, it could run at first, but when I uploaded it to the server, it couldn't run again.

new solutions

Import its own doc interface tool class after spring2.6.0

        <dependency>
            <groupId>org.springdoc</groupId>
            <artifactId>springdoc-openapi-ui</artifactId>
            <version>1.7.0</version>
        </dependency>

Write configuration file

package com.yjq.miciweb.settings;
import io.swagger.v3.oas.models.ExternalDocumentation;
import io.swagger.v3.oas.models.OpenAPI;
import io.swagger.v3.oas.models.info.Info;
import io.swagger.v3.oas.models.info.License;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
 * TODO
 *Swagger配置类
 * @Date 2023/6/29 15:45
 */
@Configuration
public class SwaggerConfigruationSettings{
//    创建Docket对象
    @Bean
    public OpenAPI springShopOpenApi(){
        Info info = new Info()
                .title("金融项目")
                .version("v1.0")
                .description("前后端分离")
                .license(new License()
                        .name("Apache 2.0")
                        .url("http://222")
                );

        return new OpenAPI().info(info).externalDocs(new ExternalDocumentation()
                .description("doc").url("http://222"));
    }
}

Error reported: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.Nul problems and solutions

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