<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger2</artifactId>
</dependency>

<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger-ui</artifactId>
</dependency>

@Configuration
@EnableSwagger2
public class Swagger2Configuration {
    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                //暴露API的包名
                .apis(RequestHandlerSelectors.basePackage("com.h2t.study.controller"))
                .paths(PathSelectors.any())
                .build();
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                //页面标题
                .title("SpringBoot整合Swagger2")
                .version("1.0")
                //描述
                .description("API 描述")
                .build();
    }
}

@RestController
public class TestController {
    @ApiOperation(value = "测试接口",notes = "传入字符串",httpMethod = "GET")
    @ApiImplicitParam(dataType = "string",name = "str",value = "字符串",required = true)
    @GetMapping("/test")
    public Object test(@RequestParam("str") String str) {
        return str;
    }
}