接口文档配置

<!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger2 -->
<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger2</artifactId>
    <version>2.9.2</version>
</dependency>

<!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger-ui -->
<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger-ui</artifactId>
    <version>2.9.2</version>
</dependency>

@Configuration
@EnableSwagger2 //开启swagger2
public class SwaggerConfig {
}

//配置Swagger的Docket的bean实例
    @Bean
    public Docket docket(){
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo());
    }

    //配置swagger信息=apiInfo
    private ApiInfo apiInfo(){
        //作者信息
        Contact contact = new Contact("Sugar","https://swagger.io/","3499832640@qq.com");
        return new ApiInfo(
                "Swagger学习笔记",
                "Study!!!!!!!!!",
                "v1.0",
                "https://swagger.io/",
                contact,
                "Apache 2.0",
                "http://www.apache.org/licenses/LICENSE-2.0",
                new ArrayList()
        );
    }

//配置Swagger的Docket的bean实例
    @Bean
    public Docket docket(){
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                //enable:是否启动swagger，默认为true，即启动
                .enable(false)
                .select()
                //RequestHandlerSelectors:配置要扫描接口的方式
                //basePackage:指定要扫描的包
                //any():扫描全部
                //none():不扫描
                //withClassAnnotation:扫描类上的注解，参数是一个注解的反射对象
                //withMethodAnnotation:扫描方法上的注解
                .apis(RequestHandlerSelectors.basePackage("com.kuang.swagger.controller"))
                //paths():过滤什么路径
                .paths(PathSelectors.ant("/kuang/**"))
                .build()
                ;
    }

//设置要显示的swagger环境
        Profiles profiles=Profiles.of("dev","test");
        //通过environment.acceptsProfiles判断是否处在自己设定的环境中
        boolean flag=environment.acceptsProfiles(profiles);

        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .enable(flag)
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.kuang.swagger.controller"))
                //paths():过滤什么路径
                .paths(PathSelectors.ant("/kuang/**"))
                .build()
                ;
    }

@Bean
    public Docket docket1(){
        return new Docket(DocumentationType.SWAGGER_2).groupName("A");
    }

    @Bean
    public Docket docket2(){
        return new Docket(DocumentationType.SWAGGER_2).groupName("B");
    }

    @Bean
    public Docket docket3(){
        return new Docket(DocumentationType.SWAGGER_2).groupName("C");
    }

<!--引入Knife4j的官方start包-->
<dependency>
    <groupId>com.github.xiaoymin</groupId>
    <!--使用Swagger2-->
    <artifactId>knife4j-spring-boot-starter</artifactId>
    <version>2.0.9</version>
</dependency>

@Configuration
@EnableSwagger2WebMvc
public class Knife4jConfiguration {

    @Bean(value = "dockerBean")
    public Docket dockerBean() {
        //指定使用Swagger2规范
        Docket docket=new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(new ApiInfoBuilder()
                //描述字段支持Markdown语法
                .description("# Knife4j RESTful APIs")
                .termsOfServiceUrl("https://doc.xiaominfo.com/")
                .contact("xiaoymin@foxmail.com")
                .version("1.0")
                .build())
                //分组名称
                .groupName("用户服务")
                .select()
                //这里指定Controller扫描包路径
                .apis(RequestHandlerSelectors.basePackage("com.github.xiaoymin.knife4j.controller"))
                .paths(PathSelectors.any())
                .build();
        return docket;
    }
}

@Api("测试")
@RestController
public class HelloController {

    @GetMapping("/hello")
    public String hello(){
        return "hello";
    }

    @PostMapping("/user")
    public User user(){
        return new User();
    }

    @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);
    }
}