1.添加依赖

        <!--添加swagger2相关概念--><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId><version>2.9.2</version></dependency><!--添加swagger-ui相关功能--><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger-ui</artifactId><version>2.9.2</version></dependency>

2.配置文件:SwggerConfig

@Configuration//告诉Spring容器，这个类是一个配置类
@EnableSwagger2//启用Swagger2功能
public class SwaggerConfig {@Beanpublic Docket createResApi(){return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo()).select().apis(RequestHandlerSelectors.basePackage("com"))//com包下的所有API都交给Swagger2管理.paths(PathSelectors.any()).build();}private ApiInfo apiInfo(){return new ApiInfoBuilder().title("演示项目API")//标签.description("演示项目")//描述.version("1.0")//版本.build();}
}

3.访问地址

http://localhost:8080/swagger-ui.html

4.问题

Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException

#配置Swagger-ui
spring.mvc.pathmatch.matching-strategy=ant_path_matcher

 Swagger常用注解