1、pom引入

<!-- Swagger2 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>-->
<!-- knife4j依赖已包含以上swagger依赖 -->
<dependency>
      <groupId>com.github.xiaoymin</groupId>
      <artifactId>knife4j-spring-boot-starter</artifactId>
      <version>2.0.9</version>
    </dependency>

2、Swagger2配置

/**
 * Swagger2配置
 * @author
 */
@Configuration
@EnableSwagger2WebMvc
@EnableWebMvc
public class SwaggerConfig implements WebMvcConfigurer {
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("doc.html")
                .addResourceLocations("classpath:/META-INF/resources/");

        registry.addResourceHandler("swagger-ui.html")
                .addResourceLocations("classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**")
                .addResourceLocations("classpath:/META-INF/resources/webjars/");

        registry.addResourceHandler("/swagger-ui/**").addResourceLocations("classpath:/META-INF/resources/");
        WebMvcConfigurer.super.addResourceHandlers(registry);
    }

    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo()).select()
                .apis(RequestHandlerSelectors.basePackage("controller"))
                .paths(PathSelectors.any()).build();
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder().title("API文档").version("1.0").build();
    }

3、访问http://127.0.0.1:8080/doc.html

image.png

4、生产环境关闭swagger
方式一，通过配置变量实现

   @Value("{swagger2.enable:false}")
    private boolean enableSwagger;

    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .enable(enableSwagger)
                .select()
                //为当前包路径
                .apis(RequestHandlerSelectors.basePackage("com.yq.demo.controller"))
                .paths(PathSelectors.any())
                .build();
    }

查看Knife4j的界面 http://localhost:8080/doc.html#/home
查看swagger的界面 http://localhost:8080/swagger-ui.html