<dependency>

            <groupId>com.github.xiaoymin</groupId>

            <artifactId>knife4j-spring-boot-starter</artifactId>

            <version>2.0.7</version>

        </dependency>

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.ParameterBuilder;

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;

/**

 * @author yvioo。

 */

@Configuration

@EnableSwagger2  //开启Swagger2

public class Knife4jConfig {

    /**

     * 配置Swagger的Docket的bean实例

     * @return

     */

    @Bean

    public Docket docket(Environment environment) {

        //设置只在开发中环境中启动swagger

        Profiles profiles=Profiles.of("dev");

        //表示如果现在是dev环境，则返回true 开启swagger

        boolean flag=environment.acceptsProfiles(profiles);

        /*添加接口请求头参数配置 没有的话 可以忽略*/

        ParameterBuilder tokenPar = new ParameterBuilder();

        List<Parameter> pars = new ArrayList<>();

        tokenPar.name("token").description("令牌").defaultValue("设置token默认值").modelRef(new ModelRef("string")).parameterType("header").required(false).build();

        pars.add(tokenPar.build());

        return new Docket(DocumentationType.SWAGGER_2)

                .apiInfo(apiInfo())

                //是否启动swagger 默认启动

                .enable(flag)

                //所在分组

                .groupName("yvioo")

                .select()

                //指定扫描的包路径

                .apis(RequestHandlerSelectors.basePackage("com.example.demo.controller"))

                //指定扫描的请求，这里表示扫描 /hello/ 的请求

                //.paths(PathSelectors.ant("/hello/**"))

                .build()

                .globalOperationParameters(pars);

    }

    /**

     * 配置ApiInfo信息

     * @return

     */

    private ApiInfo apiInfo() {

        //作者信息

        Contact author = new Contact("yvioo", "https://www.cnblogs.com/pxblog/", "111@qq.com");

        return new ApiInfo(

                "Knife4j测试",

                "Knife4j描述",

                "1.0",

                "urn:tos",

                author,

                "Apache 2.0",

                "http://www.apache.org/licenses/LICENSE-2.0",

                new ArrayList()

        );

    }

}

@Api(tags = "首页模块")

@RestController

public class IndexController {

    @ApiImplicitParam(name = "name",value = "姓名",required = true)

    @ApiOperation(value = "向客人问好")

    @GetMapping("/sayHi")

    public ResponseEntity<String> sayHi(@RequestParam(value = "name")String name){

        return ResponseEntity.ok("Hi:"+name);

    }

}

@Configuration

public class WebMvcConfigurer extends WebMvcConfigurationSupport {

    /**

     * 发现如果继承了WebMvcConfigurationSupport， 需要重新指定静态资源

     *

     */

    @Override

    public void addResourceHandlers(ResourceHandlerRegistry registry) {

        registry.addResourceHandler("/**").addResourceLocations(

                "classpath:/static/");

        registry.addResourceHandler("doc.html").addResourceLocations(

                "classpath:/META-INF/resources/");

        registry.addResourceHandler("/webjars/**").addResourceLocations(

                "classpath:/META-INF/resources/webjars/");

        super.addResourceHandlers(registry);

    }

}