报错
Failed to start bean ‘documentationPluginsBootstrapper

导入依赖

  <dependency>
            <groupId>com.github.xiaoymin</groupId>
            <!--使用Swagger2-->
            <artifactId>knife4j-spring-boot-starter</artifactId>
            <version>2.0.9</version>
        </dependency>

配置类

package com.bo.partner.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2WebMvc;

/**
 * @author: bo
 * @date: 2022/9/3
 * @description: 自定义 Swagger 接口文档的配置
 */
@Configuration
@EnableSwagger2WebMvc
public class SwaggerConfig {
    @Bean(value = "defaultApi2")
    public Docket defaultApi2() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.bo.partner.controller"))
                .paths(PathSelectors.any())
                .build();
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("少年有事问春风")
                .description("个人博客")
                .termsOfServiceUrl("https://www.jinxs.icu/")
                .contact(new Contact("wfdhwave", "https://www.jinxs.icu", "123@qq.com"))
                .version("1.0")
                .build();
    }
}

原因：

Springboot2.6以后将SpringMVC 默认路径匹配策略从AntPathMatcher 更改为PathPatternParser，导致出错

解决方法

降低Springboot版本

为了整合knife4j降低Springboot版本不太合适吧

在配置文件yaml中加入这行代码即可解决

  mvc:
    pathmatch:
      matching-strategy: ANT_PATH_MATCHER

完整yaml代码

spring:
  application:
    name: partner_matching_backend
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3307/universal
    username: root
    password: 123456
  session:
    timeout: 86400
  mvc:
    pathmatch:
      matching-strategy: ANT_PATH_MATCHER
server:
  port: 8080
  servlet:
    context-path: /api
    pring:

mybatis-plus:
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
    map-underscore-to-camel-case: false
  global-config:
    db-config:
      logic-delete-field: isDelete # 全局逻辑删除的实体字段名(since 3.3.0,配置后可以忽略不配置步骤2)
      logic-delete-value: 1 # 逻辑已删除值(默认为 1)
      logic-not-delete-value: 0 # 逻辑未删除值(默认为 0)

是属于springboot 下的配置

Q.E.D.