Laravel内部服务器发送的事件 [英] Server-sent events inside Laravel

问题描述

我正在尝试在Laravel 4内部实现HTML5服务器发送的事件，我发现了这个存储库

I am trying to implement the HTML5 Server-sent events inside Laravel 4, I found this repo

脚本使用server.php文件使其正常运行.我的问题是我将如何实现它以使其与Controller(而不是普通的php文件)一起工作?因此，在Javascript方面，它看起来像这样:

the script uses server.php file to get it working. My question is how would I implement it to get it working with a Controller instead of a plain php file? So in the Javascript side it will look like this:

var source = EventSource('/notifications');

我尝试这样做只是为了查看是否得到响应:

I tried this just to see if I get a response:

class NotificationsController extends BaseController {

public function index()
{

   $response = Response::view('notifications.index');

   $response->header('Content-Type', 'text/event-stream');
   $response->header('Cache-Control', 'no-cache');

   return $response;
}

}

并在视图中:

<?php

  echo "id: 4" . PHP_EOL;
  echo "data: this is a message" . PHP_EOL;
  flush();

最后，我在google-chrome网络面板中收到此错误:

Finally I get this error in google-chrome network panel:

caution: provisional headers are shown

推荐答案

找到它，解决方案非常简单:

Found it, the solution was quite simple:

主布局中的JavaScript:

  var source = new EventSource('/notifications');
  source.onmessage = function(e) {
    console.log(e);
  }

中的

:

in the NotificationsController@index:

header('Content-Type: text/event-stream');
header('Cache-Control: no-cache');


if (true)
{
  echo "data: <p> Hello There </p>\n";
}

flush();

我回来了MessageEvent！

I got back the MessageEvent !

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