javascript TypeError: Object function (req, res, next) { app.handle(req, res, next); 没有方法“配置”
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TypeError: Object function (req, res, next) { app.handle(req, res, next); } has no method 'configure'
提问by msrameshp
Can anyone point out why am I getting this error when I am trying to run the following code ?
谁能指出为什么我在尝试运行以下代码时会收到此错误？
var express = require('express');
var login = require('./routes/login');
var app = express();
//all environments
app.configure(function () {
app.use(express.logger('dev'));
app.use(express.bodyParser());
});
app.post('/loginUser',login.loginUser);
app.listen(3000);
console.log("Listening on port 3000...");
I am using node.js with the express 4.x version.
我正在使用带有 express 4.x 版本的 node.js。
回答by Mike Barlow - BarDev
Tom in his blog post new-features-node-express-4provides examples of how to convert from using app.configure in express version 3.x to removing it in express version 4.0.
Tom 在他的博客文章new-features-node-express-4 中提供了如何从在 express 3.x 版中使用 app.configure 转换到在 express 4.0 版中删除它的示例。
For convenience I added the code example below. In the examples below you can replace "set" with "use".
为方便起见，我添加了下面的代码示例。在下面的示例中，您可以将“set”替换为“use”。
Version 3.x
版本 3.x
// all environments
app.configure(function(){
app.set('title', 'Application Title');
})
// development only
app.configure('development', function(){
app.set('mongodb_uri', 'mongo://localhost/dev');
})
// production only
app.configure('production', function(){
app.set('mongodb_uri', 'mongo://localhost/prod');
})
Version 4.0
4.0版
// all environments
app.set('title', 'Application Title');
// development only
if ('development' == app.get('env')) {
app.set('mongodb_uri', 'mongo://localhost/dev');
}
// production only
if ('production' == app.get('env')) {
app.set('mongodb_uri', 'mongo://localhost/prod');
}
回答by alex
Express 4.x does not have configure method.
Express 4.x 没有配置方法。
https://github.com/visionmedia/express/wiki/Migrating-from-3.x-to-4.x
https://github.com/visionmedia/express/wiki/Migrating-from-3.x-to-4.x
Also, it doesn't have express.loggerand express.bodyParserhad been deprecated ages ago.
此外，它在很久以前没有express.logger并且express.bodyParser已经被弃用。
