node.js Express：访问路由中的 app.set() 设置
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Express: accessing app.set() settings in routes
提问by Scott
In Express, I'm led to believe that global app settings can be created by doing something similar to the following in my main app.jsfile:
在 Express 中，我相信可以通过在我的主app.js文件中执行类似于以下内容的操作来创建全局应用程序设置：
var express = require('express'),
...
login = require('./routes/login');
var app = express();
app.configure(function(){
...
app.set('ssoHostname', 'login.hostname.com');
...
});
...
app.get('/login', login.login);
...
now in ./routes/login.js, I'd like to access app.settings.ssoHostname, but if I attempt to run anything similar to (as per: How to access variables set using app.set() in express js):
现在./routes/login.js，我想访问app.settings.ssoHostname，但是如果我尝试运行类似于以下内容的任何内容（根据：How to access variables set using app.set() in express js）：
...
exports.login = function(req, res) {
var currentURL = 'http://' + req.header('host') + req.url;
if (!req.cookies.authCookie || !User.isValidKey(req.cookies.authCookie)) {
res.redirect(app.settings.ssoHostname + '/Login?returnURL=' + encodeURIComponent(currentURL));
}
};
...
it does not recognize app:
它不承认app：
ReferenceError: app is not defined
My questions are:
我的问题是：
- Is the approach I took of using
app.set()for global settings that will be re-used often the "proper" way to do it and if so... - How do I access these settings in routes?
- If not using
app.set()for global settings to be used often, how would I set and get custom settings in routes?
- 我
app.set()用于全局设置的方法是经常重复使用的“正确”方法吗，如果是的话...... - 如何在路由中访问这些设置？
- 如果不
app.set()用于经常使用的全局设置，我将如何在路由中设置和获取自定义设置？
采纳答案by pifantastic
At the end of your app.jsfile:
在您的app.js文件末尾：
module.exports = app;
And then in routes/login.js:
然后在routes/login.js：
var app = require('../app');
Now you have access to the actual appobject and won't get a ReferenceError.
现在您可以访问实际app对象并且不会获得ReferenceError.
回答by Darius Kucinskas
Use req.app.get('ssoHostname')
用 req.app.get('ssoHostname')
