不能POST表单node.js - express [英] Cannot POST form node.js - express

问题描述

 < form action =/ signupmethod = 后 > 
< div> 
< label>用户名：< / label> 
< input type =textname =username/>< br /> 
< / div> 
< div> 
< label>密码：< / label> 
< input type =passwordname =password/> 
< / div> 
< div>< input type =submitvalue =注册/>< / div> 
< / form> 
  

和app.js：

  / ** 
 *模块依赖关系。 
 * / 
 
 var express = require（'express'）
，routes = require（'./ routes'）
，fs = require（'fs' ）
，User = require（'./ models / User.js'）
，user = require（'./ routes / user'）
，http = require（'http'） 
，path = require（'path'）; 
 
 var app = express（）; 
 
 app.configure（function（）{
 app.set（'port'，process.env.PORT || 3000）; 
 app.set（'views' __dirname +'/ views'）; 
 app.set（'view engine'，'jade'）; 
 app.use（express.favicon（））; 
 app.use（express .logger（'dev'））; 
 app.use（express.bodyParser（））; 
 app.use（express.methodOverride（））; 
 app.use（app.router ）; 
 app.use（express.static（path.join（__ dirname，'public'）））; 
}）; 
 
 app.configure（'development'，function（）{
 app.use（express.errorHandler（））; 
}）; 
 
 app.get（'/'，routes.index）; 
 app.get（'/ form'，function（req，res）{
 fs.readFile（'./ form.html'，function（error，content）{
 if（error ）{
 res.writeHead（500）; 
 res.end（）; 
} 
 else {
 res.writeHead（200，{'Content-Type' ：'text / html'}）; 
 res.end（content，'utf-8'）; 
} 
}）; 
}）; 
 
 app.post（'/ signup'，function（req，res）{
 
 var username = req.body.username; 
 var password = req。 body.password; 
 User.addUser（username，password，function（err，user）{
 if（err）throw err; 
 res.redirect（'/ form'）; 
}）; 
}）; 
 
 app.get（'/ users'，user.list）; 
 
 
 http.createServer（app）.listen（app.get（'port'），function（）{
 console.log（Express server listening on port+ app.get（'port'））; 
}）; 
  

当尝试发布此表单时，我得到：

 无法POST /注册
  

控制台：

 NetworkError：404 Not Found  -  http：// localhost：3000 / signup
 
解决方案
你的例子适合我。我删除了对用户，用户和路由的引用，以便我可以运行它，并在控制台中正确接收并显示HTTP POST。 
  app.post（'/ signup'，function（req，res）{
 var username = req.body .username; 
 var password = req.body.password; 
 console.log（post received：％s％s，username，password）; 
}）; 
  
我怀疑您的User.addUser（）代码中出现错误。
 
Using express 3.1.0 I have a super simple form:
<form action="/signup" method="post">
    <div>
        <label>Username:</label>
        <input type="text" name="username"/><br/>
    </div>
    <div>
        <label>Password:</label>
        <input type="password" name="password"/>
    </div>
    <div><input type="submit" value="Sign Up"/></div>
</form>
and in the app.js:
/**
 * Module dependencies.
 */

var express = require('express')
  , routes = require('./routes')
  , fs = require('fs')
  , User = require('./models/User.js')
  , user = require('./routes/user')
  , http = require('http')
  , path = require('path');

var app = express();

app.configure(function(){
  app.set('port', process.env.PORT || 3000);
  app.set('views', __dirname + '/views');
  app.set('view engine', 'jade');
  app.use(express.favicon());
  app.use(express.logger('dev'));
  app.use(express.bodyParser());
  app.use(express.methodOverride());
  app.use(app.router);
  app.use(express.static(path.join(__dirname, 'public')));
});

app.configure('development', function(){
  app.use(express.errorHandler());
});

app.get('/', routes.index);
app.get('/form', function(req, res) {
    fs.readFile('./form.html', function(error, content) {
        if (error) {
            res.writeHead(500);
            res.end();
        }
        else {
            res.writeHead(200, { 'Content-Type': 'text/html' });
            res.end(content, 'utf-8');
        }
    });
});

app.post('/signup', function(req, res) {

    var username = req.body.username;
    var password = req.body.password;
    User.addUser(username, password, function(err, user) {
        if (err) throw err;
        res.redirect('/form');
    });
});

app.get('/users', user.list);


http.createServer(app).listen(app.get('port'), function(){
  console.log("Express server listening on port " + app.get('port'));
});
when trying to post this form i'm getting:
Cannot POST /signup
and in the console:
"NetworkError: 404 Not Found - http://localhost:3000/signup"
what am i missing here?
解决方案
Your example works for me. I removed the references to User, user, and routes so that I can run it and the HTTP POST is received and displayed correctly in the console. 
app.post('/signup', function(req, res) {
    var username = req.body.username;
    var password = req.body.password;
    console.log("post received: %s %s", username, password);
});
I suspect the error is in your User.addUser() code.

                        
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