在 Heroku 上找不到 Jade 模板

Question

在本地运行 this Express 应用程序工作。在Heroku 上运行它会在请求/ 或/nested 时出现粘贴错误

Error: Failed to lookup view "index"
    at Function.app.render (/app/node_modules/express/lib/application.js:493:17)
    at ServerResponse.res.render (/app/node_modules/express/lib/response.js:753:7)
    at /app/server.js:21:16
    at callbacks (/app/node_modules/express/lib/router/index.js:161:37)
    at param (/app/node_modules/express/lib/router/index.js:135:11)
    at pass (/app/node_modules/express/lib/router/index.js:142:5)
    at Router._dispatch (/app/node_modules/express/lib/router/index.js:170:5)
    at Object.router (/app/node_modules/express/lib/router/index.js:33:10)
    at next (/app/node_modules/express/node_modules/connect/lib/proto.js:199:15)
    at store.get.next (/app/node_modules/express/node_modules/connect/lib/middleware/session.js:309:9)

Error: Failed to lookup view "nested/index"
    at Function.app.render (/app/node_modules/express/lib/application.js:493:17)
    at ServerResponse.res.render (/app/node_modules/express/lib/response.js:753:7)
    at /app/server.js:24:16
    at callbacks (/app/node_modules/express/lib/router/index.js:161:37)
    at param (/app/node_modules/express/lib/router/index.js:135:11)
    at pass (/app/node_modules/express/lib/router/index.js:142:5)
    at Router._dispatch (/app/node_modules/express/lib/router/index.js:170:5)
    at Object.router (/app/node_modules/express/lib/router/index.js:33:10)
    at next (/app/node_modules/express/node_modules/connect/lib/proto.js:199:15)
    at store.get.next (/app/node_modules/express/node_modules/connect/lib/middleware/session.js:309:9)

在我的服务器文件中：

express = require 'express'
app = express()

app.configure () ->

  app.set 'views', __dirname + '/views'
  app.set 'view engine', 'jade'

  app.use express.logger('dev')
  app.use express.bodyParser()
  app.use express.methodOverride()
  app.use express.cookieParser()
  app.use express.session(
    secret: 'WTF'
  )
  app.use app.router
  app.use express['static'](process.cwd() + '/public')

  app.get '/', (req, res) ->

    res.render 'index'

  app.get '/nested', (req, res) ->

    res.render 'nested/index'

port = process.env.PORT || 3000

app.listen port, () -> 
  console.log 'Server started on ' + port + '\nPress CTRL-C to stop server.'

在本地，我确实不需要需要指定app.set 'views', __dirname + '/views' 以便服务器运行并查找文件 - 无论有没有这个，它都不适用于 Heroku。

Answer 1

关于您的编辑：

问题可能是个案。而字符串指定小写路径：

• res.render 'index'
• res.render 'nested/index'

文件实际上是大写的：

• views/Index.jade
• views/nested/Index.jade

您的本地系统似乎使用了不区分大小写的文件系统，而 Heroku 没有。

---

---

为了帮助 Express 找到您的视图，您可以设置 'views' 根路径：

app.set('views', __dirname + '/views');

您还可以将绝对路径传递给res.render()：

res.render(__dirname + '/views/admin/login');

---

另请注意，您可能不需要（也可能不想）将req 和res 传递给res.render()：

app.get('/admin/login', function (req, res) {
    res.render('admin/login');
});

有了它们，req 的属性将作为 locals 包含在视图中，res 因为 callback 将被忽略或导致错误，因为它不是 function。