如何在Node.js中将当前的静态html文件更改为另一个html文件？

Question

我正在尝试让我的nodejs脚本更改触发某些socket.io时显示的html文件，请参见下面的脚本

var app = require('express')();
var server = require('http').createServer(app);
var bin = "casperjs";
var args = ['server.js'];
var io = require('socket.io').listen(server);
server.listen(process.env.PORT);

app.get('/', function (req, res) {
res.sendfile(__dirname + '/client/index.html');
});

io.sockets.on('connection', function (socket) {
    console.log("socket connection incoming");




socket.on('dout', function () {
var spawn = require('child_process').spawn,
child = spawn(bin, args);
child.stdin.setEncoding = 'utf-8';



socket.on('trout', function(data){
child.stdin.write(data.message + '\n');


//child.stdout.pipe(process.stdout);
child.stdout.on('data', function (data) {
console.log('  ' + data);
});


socket.on('mout', function() {
       console.log('communicatio\n');
       /*
       trying to change the html file displayed 
       to account.html from index.html

       i have tried this with no success 

app.get('/', function (req, res) {
res.sendfile(__dirname + '/client/index.html');
});


       */
    }); 




});
// console.log(child.stdout);
//console.log(child.stdout.pipe(write.stdout));
    });
});

这就是我想要去上班的

socket.on('mout', function() {
       console.log('communicatio\n');
       /*
       trying to change the html file displayed 
       to account.html from index.html

       i have tried this with no success 

app.get('/', function (req, res) {
res.sendfile(__dirname + '/client/index.html');
});


       */

谁能帮助我正确地做到这一点

Answer 1

Socket.io事件发生在Express应用程序的传统请求/响应生命周期之外。 一旦用户加载了您的初始路线，快速路线将仅由其他请求触发。 您应该通过socket.io的on并emit方法。

类似于以下psuedocode的东西应该可以工作：

服务器

socket.on('mout', function() {
  // this may be a little heavy handed
  // ideally you are only updating small parts of the page as they change
  // or notifying the client that they need to make an additional request ajaxically
  fs.readFile('__dirname + '/client/index.html', 'utf8', function (err, content) {
    if (err) return;
    socket.emit('pageUpdate', function () {
      content: content
    });
  });

});

客户：

// when the pageUpdate event is fired, 
// change the body content of the response
socket.on('pageUpdate', function (content) {
  $('body').html($('body', content));
});