springboot 集成swagger ui

<!-- swagger ui -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.2.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.2.2</version>
        </dependency>

@SpringBootApplication
@EnableSwagger2
public class Main {

    public static void main(String[] args) throws Exception {
        SpringApplication.run(Main.class, args);
    }
}

@RestController
@RequestMapping("/user")
@Api("swagger ui 注释 api 级别")
public class HelloWorldController {

    @ApiOperation("swagger ui 注释 方法级别")
    @RequestMapping(value="/hello",method=RequestMethod.GET)
    public  String hello() {
        String data = "Never trouble untill trouble troubles you. Some one told me some years ago.";
        return data;
    }
}