Node.js heroku使用jade时出错
调用Node.js heroku使用jade时出错,node.js,heroku,pug,Node.js,Heroku,Pug,调用render函数时出现错误[此应用程序在Heroku上运行] web.js: var async = require('async'); var express = require('express'); var util = require('util'); // create an express webserver var app = express.createServer( express.logger(), express.static(__dirname +
render
函数时出现错误[此应用程序在Heroku上运行]
web.js:
var async = require('async');
var express = require('express');
var util = require('util');
// create an express webserver
var app = express.createServer(
express.logger(),
express.static(__dirname + '/public'),
express.bodyParser(),
express.cookieParser(),
// set this to a secret value to encrypt session cookies
express.session({ secret: process.env.SESSION_SECRET || 'secret123' }),
);
app.set('views', __dirname + 'views');
app.set('view engine', 'jade');
// listen to the PORT given to us in the environment
var port = process.env.PORT || 3000;
app.listen(port, function() {
console.log("Listening on " + port);
});
app.get('/', function ( req, res ) {
res.render('ok', { title : 'ok' });
});
好的,杰德:
!!! 5
html(lang='en')
head
title= title
body
div#navigation
package.json:
{
"name": "package",
"version": "0.0.1",
"description": "Facebook integration, Node.js",
"dependencies": {
"express": "latest",
"jade":"0.17.0"
},
"engines": {
"node": "0.8.19",
"npm" : "1.2.10"
}
}
错误:
TypeError: Cannot read property '0' of undefined
at new View (/app/node_modules/express/lib/view.js:41:65)
at Function.app.render (/app/node_modules/express/lib/application.js:486:12)
at ServerResponse.res.render (/app/node_modules/express/lib/response.js:753:7)
at /app/web.js:32:9
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)
如果我替换res.render('ok',{title:'ok'})代码>通过res.end('some text')代码>工作正常
有解决办法吗
谢谢 最新版本的Express似乎使用app.engine()而不是app.set('view engine')()
您可以查看更多详细信息
这可能会解决你的问题
另外,将“/”添加到视图的路径中(或像在express中那样将其删除)
编辑:我检查了某个地方是否使用了“查看引擎”设置,并且,正如本杰明所说,我不明白为什么您对app.set('view engine')
的调用不起作用
编辑2:我刚试着运行你的代码,但有几个失败点。下面是一个在本地计算机上工作的固定web.js文件:
var express = require('express');
var util = require('util');
// create an express webserver
var app = express(
express.logger(),
express.static(__dirname + '/public'),
express.bodyParser(),
express.cookieParser(),
// set this to a secret value to encrypt session cookies
express.session({ secret: process.env.SESSION_SECRET || 'secret123' })
);
app.set('views', __dirname + '/views');
app.set('view engine', 'jade');
// listen to the PORT given to us in the environment
var port = process.env.PORT || 3000;
app.listen(port, function() {
console.log("Listening on " + port);
});
app.get('/', function ( req, res ) {
res.render('ok', { title : 'ok' });
});
更改日志:
- 已删除
require('async')
,因为它未使用,不在package.json中
- 使用express()而不是不推荐使用的“.createServer”
- 添加了视图目录路径设置中缺少的
/
- 删除了
express.session
调用后的逗号
您这边的待办事项:
-删除ok.jade
文件中html
之前的缩进。如果您查看[the express source code][1],您会看到express/lib/view.js:41:65
引用了this.defaultEngine[0]
这意味着传递给视图构造函数的options.defaultEngine未定义。这段代码依次调用:if(!view){view=new view(name,{defaultEngine:This.get('view engine'),root:This.get('views'),engines:engines});
这意味着This.get('view engine')
工作不正常。您确定jade设置正确吗?[1]当前位置我肯定问题出在Jade身上,但我不知道如何解决这个问题!你怎么这么肯定Jade有问题?
var express = require('express');
var util = require('util');
// create an express webserver
var app = express(
express.logger(),
express.static(__dirname + '/public'),
express.bodyParser(),
express.cookieParser(),
// set this to a secret value to encrypt session cookies
express.session({ secret: process.env.SESSION_SECRET || 'secret123' })
);
app.set('views', __dirname + '/views');
app.set('view engine', 'jade');
// listen to the PORT given to us in the environment
var port = process.env.PORT || 3000;
app.listen(port, function() {
console.log("Listening on " + port);
});
app.get('/', function ( req, res ) {
res.render('ok', { title : 'ok' });
});