pom采用这个依赖,ui不能用2.9.2的。2.9.2的ui接口顺序不是根据后端排序显示的

        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>com.github.xiaoymin</groupId>
            <artifactId>swagger-bootstrap-ui</artifactId>
            <version>1.9.6</version>
        </dependency>

配置文件为：

@Configuration
@EnableSwagger2
@EnableSwaggerBootstrapUI
public class SwaggerConfig {
    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .pathMapping("/")
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.kenny.enterpriser.controller"))
                .paths(PathSelectors.any())
                .build().apiInfo(new ApiInfoBuilder()
                        .title("XXXX后台")
                        .description("XXXXX后台")
                        .version("1.0")
                        .contact(new Contact("Kenny","blog.csdn.net","aaa@gmail.com"))
                        .license("The Apache License")
                        .licenseUrl("http://www.baidu.com")
                        .build());
    }

}

yml:

swagger:
  enable: true

想实现这种效果排序

@ApiOperation(value = "XXX)",position = 1)
@ApiOperation(value = "XXX)",position = 2)
@ApiOperation(value = "XXX)",position = 3)

则新建一个类增强ServiceModelToSwagger2MapperImpl，即可实现

@Component
@Primary
public class ServiceModelToSwagger2MapperImplExt extends ServiceModelToSwagger2MapperImpl {

    @Override
    protected Map<String, Path> mapApiListings(Multimap<String, ApiListing> apiListings) {
         Map<String, Path> paths = new LinkedHashMap<>();
        Multimap<String, ApiListing> apiListingMap = LinkedListMultimap.create();
        Iterator iter = apiListings.entries().iterator();
        while(iter.hasNext())
        {
            Map.Entry<String, ApiListing> entry = (Map.Entry<String, ApiListing>)iter.next();
            ApiListing apis =  entry.getValue();
            List<ApiDescription> apiDesc = apis.getApis();
            List<ApiDescription> newApi = new ArrayList<>();
            for(ApiDescription a:apiDesc){
                newApi.add(a);
            }
            Collections.sort(newApi, new Comparator<ApiDescription>() {
                @Override
                public int compare(ApiDescription left, ApiDescription right) {
                    return Integer.compare(left.getOperations().get(0).getPosition(),right.getOperations().get(0).getPosition());
                }
            });
            try {
                //因ApiListing的属性都是final故需要通过反射来修改值
                ModifyFinalUtils.modify(apis, "apis", newApi);
            } catch (Exception e) {
                e.printStackTrace();
            }
            apiListingMap.put(entry.getKey(),apis);
        }

        for (ApiListing each : apiListingMap.values()) {
            for (ApiDescription api : each.getApis()) {
                paths.put(api.getPath(), mapOperations(api, Optional.fromNullable(paths.get(api.getPath()))));
            }
        }
        return paths;
    }

    private Path mapOperations(ApiDescription api, Optional<Path> existingPath) {
        Path path = existingPath.or(new Path());
        for (springfox.documentation.service.Operation each : nullToEmptyList(api.getOperations())) {
            Operation operation = mapOperation(each);
            path.set(each.getMethod().toString().toLowerCase(), operation);
        }
        return path;
    }
}

public class ModifyFinalUtils {
    public static void modify(Object object, String fieldName, Object newFieldValue) throws Exception {
        Field field = object.getClass().getDeclaredField(fieldName);

        Field modifiersField = Field.class.getDeclaredField("modifiers");
        modifiersField.setAccessible(true); //Field 的 modifiers 是私有的
        modifiersField.setInt(field, field.getModifiers() & ~Modifier.FINAL);

        if(!field.isAccessible()) {
            field.setAccessible(true);
        }

        field.set(object, newFieldValue);
    }
}