Question

问题陈述：当我运行node.js时出现错误

错误：大多数中间件（如bodyParser）不再与Express捆绑在一起，必须单独安装。请参阅https://github.com/

预期结果：应显示页面，用户可以将数据插入数据库。

这是我的代码：

filter.js

var express = require('express'),
http = require('http'),
fs = require('fs'),
bodyParser = require('body-parser'),

io = require('socket.io'),
filter = express();

mongoose = require('mongoose');

//all environments
filter.set('port', process.env.PORT || 3000);
filter.set('views', __dirname + '/views');
filter.set('view engine', 'jade');

filter.use(express.bodyParser());
filter.use(express.methodOverride());
//filter.use(filter.router);
filter.use(express.static(path.join(__dirname,'public')));

mongoose.connect('mongodb://localhost/Company');

var Schema = new mongoose.Schema({
_emailid: String,
name: String,
age: Number
});

var user = mongoose.model('emp', Schema);

filter.get('/view',  function(req, res){
user.find({}, function(err, docs){
    if(err) res.json(err);

})
});
filter.post('/new', function(res, req){
new user({
    _emailid:req.body.email,
    name:req.body.name,
    age:req.body.age,
}).save(function(err, doc){
    if(err) res.json(err);
    else res.redirect('/view');
});
});

var server = http.createServer(app).listen(app.get('port'), function(){
console.log('Express server listening on port' + app.get('port'));
});

这是我的HTML代码：

<html>
<head>
<title>Please enter your details</title>
</head>
<body>
<h3>Please enter your details</h3>
<p>Please register below!!!</p>

<form action="/new" method="POST">

<label for="email">Email: </label>
    <input type="email" name="email" /><br>
<label for="name">Name: </label>
    <input type="text" name="name" /><br>
<label for="age">Age: </label>
    <input type="number" name="age" /><t>
    <input type="number" name="age" /><br>

<input type="submit" />
</form>
</body>

</html>

Answer 1

快递4.x有很多变化。就像错误所说的那样，所有的中间件都被删除了。

更新您的package.json以包含＆＃34; new＆＃34;包，可在此处找到基本列表和完整列表https://github.com/expressjs

基本上你需要编辑

filter.use(express.bodyParser());

并替换为，

filter.use(bodyParser());

您还必须为methodOverride中间件执行此操作。

确保所有模块都已打包。

希望这会对你有所帮助，

var express = require('express'),
http = require('http'),
fs = require('fs'),
bodyParser = require('body-parser'),
methodOverride=require('method-override'),
io = require('socket.io'),
filter = express();

mongoose = require('mongoose');

//all environments
filter.set('port', process.env.PORT || 3000);
filter.set('views', __dirname + '/views');
filter.set('view engine', 'jade');

filter.use(bodyParser());
filter.use(methodOverride());
//filter.use(filter.router);
filter.use(express.static(path.join(__dirname,'public')));

Node.js脚本未运行

1 个答案: