Swagger生成器无法识别控制器

Question

我有这个yaml文件：

---
swagger: "2.0"
info:
  version: 0.1.0
  title: "My API"
host: localhost:3000
basePath: /api
schemes:
  - http
paths:
    /weather:
      get:
        x-swagger-router-controller: "weatherController"
        description: "Returns current weather in the specified city to the caller"
        operationId: getWeather
        parameters:
          - name: city
            in: query
            description: "The city you want weather for in the form city,state,country"
            required: true
            type: "string"

当我运行swagger-codegen-cli时，会生成/api/Default.js和/api/DefaultService.js，但没有生成/api/weatherController.js。

我也尝试过这个：

---
swagger: "2.0"
info:
  version: 0.1.0
  title: "My API"
host: localhost:3000
basePath: /api
schemes:
  - http
paths:
    /weather:
      x-swagger-router-controller: "weatherController"
      get:
        description: "Returns current weather in the specified city to the caller"
        operationId: getWeather
        parameters:
          - name: city
            in: query
            description: "The city you want weather for in the form city,state,country"
            required: true
            type: "string"

我使用以下命令运行生成器：

java -jar swagger-codegen-cli.jar generate -l nodejs-server -o output -i api.yaml

我该怎么做呢？