发送标头后无法设置标头 [英] Can't set headers after they are sent
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问题描述
我正在使用节点版本0.10.3和Express 3.1.1.
I'm using node version 0.10.3 and Express 3.1.1.
我试图返回一个简单的响应，但出现以下错误:
I'm trying to return a simple response, but I'm getting the following error:
http.js:692
throw new Error('Can\'t set headers after they are sent.');
^
Error: Can't set headers after they are sent.
at ServerResponse.OutgoingMessage.setHeader (http.js:692:11)
我已经阅读了很多，并尝试了许多解决方案，但是我仍然遇到该错误. 我使用了node-inspector，在该行之后出现了错误-
I've read a lot about it, and tried many solutions but I'm still getting that error. I've used node-inspector and i'm getting the error after that line -
res.render('index', { title: 'Express' });
app.js:
/**
* Module dependencies.
*/
var express = require('express')
, http = require('http')
, path = require('path')
, socketio = require('socket.io');
var app = express()
, server = http.createServer(app)
, io = socketio.listen(server);
app.configure(function(){
app.set('port', process.env.PORT || 3000);
app.set('views', __dirname + '/views');
app.set('view engine', 'hjs');
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());
});
server.listen(app.get('port'), function(){
console.log("Express server listening on port " + app.get('port'));
});
io.configure('production', function(){
io.enable('browser client etag');
io.set('log level', 1);
});
io.configure('development', function(){
io.set('log level', 1);
});
io.sockets.on('connection', function(socket) {
socket.on('event', function(event) {
socket.join(event);
});
});
require('./routes')(app, io);
routes/index.js:
var utils = require('../utils')
, config = require('../config')
, io;
module.exports = function(app, socketio) {
io = socketio;
app.get('/', index);
};
var index = function(req, res){
res.render('index', { title: 'Express' });
};
views/index.hjs:
<!DOCTYPE html>
<html>
<head>
<title>{{ title }}</title>
<link rel='stylesheet' href='/stylesheets/style.css' />
</head>
<body>
<h1>{{ title }}</h1>
<p>Welcome to {{ title }}</p>
</body>
</html>
package.json:
{
"name": "blabla",
"version": "0.0.1",
"private": true,
"scripts": {
"start": "app.js"
},
"dependencies": {
"express": "3.0.3",
"hjs": "0.0.4",
"cradle": "0.6.4",
"twiliosig": "0.0.1",
"socket.io": "0.9.11"
},
"subdomain": "blabla",
"engines": {
"node": "0.6.x"
}
}
有线索吗?
推荐答案
您的socket.io版本似乎出错.
Seems to be an error with your version of socket.io.
使用此:
"dependencies": {
"express": "3.0.x",
"hjs": "0.0.4",
"cradle": "0.6.4",
"twiliosig": "0.0.1",
"socket.io": "0.9.x"
}
已通过socket.io@0.9.16测试
Tested with socket.io@0.9.16
这篇关于发送标头后无法设置标头的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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