javascript Nodejs/Expressjs 应用程序结构
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Nodejs/Expressjs app structure
提问by georgesamper
Say i have this code to separate routes in expressjs:
假设我有这个代码来分隔 expressjs 中的路由：
module.exports = function(express,app,client) {
app.get('/', function(req,res,next) {
var query = 'SELECT * FROM users LIMIT 10';
var user = client.query(query, function (err, results, fields) {
res.render('index', {
title: 'test',
users: results
});
client.end();
});
});
}
And require it in app.js:
并要求它app.js：
require('./controllers/routes.js')(express,app,client);
1) How do i separate db queries into new files in the best way?
1）如何以最佳方式将数据库查询分离到新文件中？
This file would get pretty big even if i separate db logic.
即使我将数据库逻辑分开，这个文件也会变得非常大。
2) What is a good way to separate routes? Maybe separate modules? and then require them all in app.js?
2）什么是分开路线的好方法？也许单独的模块？然后要求他们都在app.js？
回答by alessioalex
There is a similar question here which you should read: How to structure a express.js application?
这里有一个类似的问题，您应该阅读：如何构建 express.js 应用程序？
1) All your query logic should be put in models (modules that reside in /models for example)
1）你所有的查询逻辑都应该放在模型中（例如驻留在 /models 中的模块）
2) Separate all your routes (controllers) into modules (and put them in /routes for ex) By routes I mean for example: - all the logic for "Users" routes go into /routes/users.js
2）将所有路由（控制器）分成模块（并将它们放在 /routes for ex 中） 通过路由我的意思是例如： - “用户”路由的所有逻辑都进入 /routes/users.js
Try to keep you app as MVC-ish as possible.
尽量让你的应用程序像 MVC 一样。
Small example for your app above:
上面你的应用的小例子：
app.js
应用程序.js
// configuration for express etc
require('./routes/index')(app)
routes/index.js
路线/ index.js
var model = require("../models/users.js");
module.exports = function (app) {
app.get('/', function (req, res, next) {
model.get_recent(function (err, results) {
// do stuff with your results
res.render('index');
});
});
}
models/users.js
模型/用户.js
module.exports = {
get_recent: function(callback) {
var query = "SELECT * FROM users LIMIT 10";
database.query(query, callback);
}
}
回答by Len Xu
In the expressjs download package, there is a folder called "mvc". The author provides a good example for a tiny&efficient mvc structure. Going through the code, you will get much inspiration.
在 expressjs 下载包中，有一个名为“mvc”的文件夹。作者提供了一个小而高效的 mvc 结构的好例子。通过代码，你会得到很多灵感。
回答by Zakiullah Khan Mohamed
How about express-train? i have been using it lately, and it plays well with complex app structures.
如何特快列车？我最近一直在使用它，它可以很好地处理复杂的应用程序结构。
