第一步：

在maven项目的pom.xml中引入Knife4j的依赖包

<dependency>
    <groupId>com.github.xiaoymin</groupId>
    <artifactId>knife4j-spring-boot-starter</artifactId>
    <version>2.0.7</version>
</dependency>

第二步：创建Knife4j配置Knife4jConfiguration

@Configuration
@EnableSwagger2
@EnableKnife4j
@Import(BeanValidatorPluginsConfiguration.class)
public class Knife4jConfiguration {
    @Bean(value = "defaultApi2")
    public Docket defaultApi2() {
        Docket docket=new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(new ApiInfoBuilder()
                        .version("1.0")
                        .title("测试服务")
                        .description("<div style='font-size:15px;color:red;'>测试服务接口</div>")
                        .build())
                //分组名称
                .groupName("1.0 版本")
                .select()
                //这里指定Controller扫描包路径
                .apis(RequestHandlerSelectors.basePackage("com.SF.controller"))
                .paths(PathSelectors.any())
                .build();
        return docket;
    }
}

第三步：使用

@Api(tags = "首页模块")
@RestController
public class IndexController {
    @ApiImplicitParam(name = "name",value = "姓名",required = true)
    @ApiOperation(value = "hello")
    @GetMapping("/hello")
    public ResponseEntity<String> hello(@RequestParam(value = "name")String name){
        return ResponseEntity.ok("Hi:"+name);
    }
}