springboot整合swagger

?

<!--swagger依赖-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>com.github.xiaoymin</groupId>
            <artifactId>swagger-bootstrap-ui</artifactId>
            <version>1.9.6</version>
        </dependency>

?SwaggerConfig

package org.example.minio.config;

import com.google.common.base.Predicates;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.ParameterBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.schema.ModelRef;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.service.Parameter;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

import java.util.ArrayList;
import java.util.List;


/**
 * swagger文档
 */
@Configuration
@EnableSwagger2
public class SwaggerConfig  {
    @Bean
    public Docket createRestApi() {
        //=====添加head参数start============================
        ParameterBuilder parameter1 = new ParameterBuilder();
        List<Parameter> pars = new ArrayList<Parameter>();
        parameter1.name("satoken").description("satoken").modelRef(new ModelRef("string")).parameterType("header").required(false).build();
        pars.add(parameter1.build());
        // =========添加head参数end===================
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("org.example.minio"))
                .apis(RequestHandlerSelectors.withClassAnnotation(Api.class))
                //.apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))
                .paths(PathSelectors.any())
                .build()
//                .globalOperationParameters(pars)
                .groupName("测试"); // 分组
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("minio-接口文档")
                .description("接口文档-minio")
                .contact(new Contact("test", "", ""))
                .version("v1.0")
                .build();
    }
}

?解决：

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.

org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException
?? ?......

spring:
  mvc:
    pathmatch:
      matching-strategy: ant_path_matcher