springboot2.7整合swagger2

1、引入依赖两个
<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>

2、新建配置类：
@Configuration
@EnableSwagger2
public class SwaggerConfig {
@Bean
public Docket getDocket(){
ApiInfoBuilder apiInfoBuilder = new ApiInfoBuilder();
apiInfoBuilder.title("《蜂蜜商城》接口文档说明")
.description("此文档详细说明了蜂蜜商城后台接口规范")
.version("v 1.0.0")
.contact(new Contact("yogo","www.yogo.com","542870322@qq.com"));
ApiInfo apiInfo = apiInfoBuilder.build();

    Docket docket = new Docket(DocumentationType.SWAGGER_2)
            .apiInfo(apiInfo)
            .select()
            .apis(RequestHandlerSelectors.basePackage("com.yogo.api"))
            .paths(PathSelectors.any())
            .build();
    return docket;
}

}

直接运行会报错：
Failed to start bean ‘documentationPluginsBootstrapper’; nested exception is java.lang.NullPointerException:
3、在yml中添加以下配置：
spring：
mvc:
pathmatch:
matching-strategy: ant_path_matcher

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4、第三方UI插件依赖，还挺好看的：
<dependency>
<groupId>com.github.xiaoymin</groupId>
<artifactId>swagger-bootstrap-ui</artifactId>
<version>1.9.6</version>
</dependency>