更详细的Swagger的教程可以看：https://www.bilibili.com/video/BV1Y441197Lw?from=search&seid=14534666160936817499&spm_id_from=333.337.0.0

1. 引入相关swagger2依赖包

        <!--swagger-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <!--swagger-ui-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>

2.自定义SwaggerConfig类

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.core.env.Profiles;
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.EnableSwagger2;

import java.util.ArrayList;

@Configuration //开启swagger配置
@EnableSwagger2  //开启swagger2
public class SwaggerConfig {

    @Bean
    public Docket docket(Environment environment){
        //设置要显示seagger的环境
        Profiles dev = Profiles.of("dev");
        // 判断当前是否处于dev环境，如果通过显示API信息，否则不显示
        boolean flag = environment.acceptsProfiles(dev);
        return new Docket(DocumentationType.SWAGGER_2)
                .groupName("佛祖")   //分组
                .enable(flag)   //是否开启swagger
                .select()   //扫描
                .apis(RequestHandlerSelectors.basePackage("com.littlenorth.controller"))  //扫描此包下面的Api
                .build();
    }

  //swagger接口文档信息
    private ApiInfo apiInfo(){
        Contact contact=new Contact("佛祖组","","1835857596@qq.com");
        return  new ApiInfo(
                "佛祖组校园人事系统",
                "相关API接口",
                "v1",
                "urn:tos",
                contact,
                "Apache2.0",
                "http://www.apache.org/licenses/LICENSE-2.0",
                new ArrayList());
    }
}

运行项目，在端口号后 输入：/swagger-ui.html 访问接口信息