错误：大多数中间件(如 json)不再与 Express Bundle 在一起，必须单独安装.请参见

发布于04月13日

i move my source window to ubuntu :

错误:大多数中间件(如json)不再与ExpressBundle ，必须单独安装.请看https://github.com/senchalabs/connect#middleware.

this is my source thank you

var http = require('http');
var fs = require('fs');
var express = require('express');
var mysql = require('mysql');
var ejs = require('ejs');

var app = express();
app.use(express.bodyParser());
app.use(app.router);

推荐答案

There are a number of changes with express 4.x. Like the error says, all of the middleware has been removed.

更新你的软件包.json要包含"新"包，可以找到基本列表here和完整列表here

Using your code from above, you would just need the following:

// package.json
{
  "dependencies":
  {
    "express":"*",
    "body-parser":"*"
  }
}

Then update your source to reflect the new changes:

// app.js
var http = require('http'),
    fs = require('fs'),
    express = require('express'),
    bodyParser = require('body-parser'),
    mysql = require('mysql'),
    ejs = require('ejs');

var app = express();
app.use(bodyParser.urlencoded({
    extended: true
}));
app.use(bodyParser.json());

注意这个apply.使用(app.router)也已被删除.