使用php+js实现服务器推，在wamp环境中可以生效，但转移到Linux下的nginx上，就不能用了，是环境配置问题？要如何配置？
以下是相关代码
服务器端php代码：

date_default_timezone_set("America/New_York"); header("Content-Type:text/event-stream"); $userid = $_SESSION['userid']; //session_write_close(); $db = get_db(); while(true) { $notices = $db->lRange("User:{$userid}:Notice", 0, -1); $notice_num = 0; foreach ($notices as $value) { $readed = $db->hGet("Notice:{$value}:Info", 'readed'); if ($readed == false) { $notice_num++; } } echo "event: ping\n"; $curDate = $notice_num; echo 'data: {"time": "' . $curDate . '"}'; echo "\n\n"; ob_flush(); flush(); sleep(30); }

前端js：

var evtSource = new EventSource(serverName + 'index.php/Home/NoticePush/index'); evtSource.addEventListener("ping", function(e) { var obj = JSON.parse(e.data); $('p#header p#user_notice a').text(obj.time); }, false);