解决springboot引入swagger2不生效问题

<!--  引入swagger包 -->
        <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>

@Configuration
@EnableSwagger2
public class Swagger2Config {
    @Bean
    public Docket api(){
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(getApiInfo())
                .select()
               .apis(RequestHandlerSelectors.basePackage("com.xx.controller"))
                .paths(PathSelectors.any())
                .build();
    }
    private ApiInfo getApiInfo(){
        return new ApiInfoBuilder()
                .title("Swagger2....")
                .description("Swagger2")
                .version("1.0")
                .license("Apache 2.0")
                .licenseUrl("http://www.apache.org/licenses/LICENSE-2.0")
                .build();
    }
}

@Controller
@RequestMapping("/user")
@Api(tags = "我的接口模块")
public class UserController {
    @Autowired
    private UserService userService;
	//注意这个注解跟请求对应的@XxxMapping，要不然这个接口会生成好多方法
    @GetMapping(value = "/getUserById")
    @ResponseBody
    @ApiOperation(value = "根据ID查询User")
    public User getUserById(@RequestParam(value = "id") int id){
        return userService.getUserById(id);
    }
}

@ApiModel(value = "用户对象")
public class User {
    @ApiModelProperty(value = "用户ID", name = "userId")
    private Integer userId;
    @ApiModelProperty(value = "用户姓名",name = "userName")
    private String userName;
    @ApiModelProperty(value = "用户密码",name = "password")
    private String password;
    @ApiModelProperty(value = "用户手机号",name = "phone")
    private String phone;