我正在尝试使用API与服务器通信。
使我更容易编写一个脚本，使用php脚本来传递API。
我的目标是每秒查询一次API，看看队列中是否有新消息。
我被建议使用server-sent events方法，让服务器只在有新内容时才向客户端发送响应。
这是我的php脚本
<?php
// Register autoloader function
spl_autoload_register('apiAutoloader');
header("Content-Type: text/event-stream\n\n");
$config = array('host' => 'server:IP', //REQUIRED - Server Name
'port' => 8018, //REQUIRED - Server Port
'userID' => 'user', //REQUIRED - UserID to login with
'password' => '123456', //REQUIRED - password for the UserID to login with
);
try {
//create a new instance of icws
$icws = new API\ICWS($config);
//create a new session
$icws->createSession(true);
while(1){
$result = $icws->processMessage();
echo json_encode($result);
ob_flush();
flush();
sleep(1);
}
} catch(Exception $e){
echo $e->getMessage();
}
function apiAutoloader($className)
{
$className = ltrim($className, '\\');
$fileName = '';
$namespace = '';
if ($lastNsPos = strripos($className, '\\'))
{
$namespace = substr($className, 0, $lastNsPos);
$className = substr($className, $lastNsPos + 1);
$fileName = str_replace('\\', DIRECTORY_SEPARATOR, $namespace) . DIRECTORY_SEPARATOR;
}
$fileName .= str_replace('_', DIRECTORY_SEPARATOR, $className) . '.php';
$toLoad = dirname(__FILE__).'/'.$fileName;
if (is_file($toLoad) === true)
{
include $toLoad;
}
}
?>
当用户访问我的页面时，这是我运行的代码
<script>
$(function(){
function isset(a, b){
if(typeof a !== "undefined" && a){
return a
}
return b;
}
var evtSource = new EventSource("poll.php");
evtSource.onmessage = function(e) {
$.each(e.data.calls, function(i, item){
$.each(item, function(z, c){
var interactionId = isset(c.interactionId, 0);
var Eic_CallDirection = isset(c.Eic_CallDirection, '');
var Eic_State = isset(c.Eic_State, '');
var AccoRDI_mid = isset(c.AccoRDI_mid, '');
var Eic_RemoteAddress = isset(c.Eic_RemoteAddress, '');
if(Eic_State == '' || Eic_CallDirection == ''){
return;
}
//incoming call that is not answered
if( Eic_CallDirection == 'I' && Eic_State == 'A'){
console.log('Incomming Call From ' + Eic_RemoteAddress + ' MID: ' + AccoRDI_mid );
return;
}
//on hold
if( Eic_State == 'H'){
console.log('Phone number ' + Eic_RemoteAddress + ' is on hold' );
return;
}
//voicemail
if( Eic_State == 'M'){
console.log('Phone number ' + Eic_RemoteAddress + ' is on leaving a voicemail' );
return;
}
//connected call
if(Eic_State == 'C'){
console.log('Live Call With ' + Eic_RemoteAddress );
return;
}
//Dialling call
if(Eic_State == 'O'){
console.log('Dialling ' + Eic_RemoteAddress );
return;
}
//Dialling call
if(Eic_State == 'R'){
console.log('Outbound call is rining and waiting for answer ' );
return;
}
//Call Disconnected
if(Eic_State == 'I' || Eic_State == 'E' ){
console.log('Hungup with ' + Eic_RemoteAddress );
return;
}
});
});
}
});
</script>
我上面的代码无效。
我的控制台中没有任何内容。但是这个错误Firefox can't establish a connection to the server at /icws/poll.php
我怎样才能让它发挥作用？ 我通过PHP脚本实现的方式是否正确？
答案 0 :(得分：1)
您的事件源php文件的浏览器请求的状态代码是什么？尝试使用firebug来确保它不是404。
还关于php代码。
根据您的问题中包含的Mozilla来源。 应该命名服务器的正确响应，并用换行符分隔
header("Content-Type: text/event-stream\n\n");
while (1) {
echo "event: ping\n"; //event name
echo 'data: '.json(); //event data
Echo "\n\n"; //required
ob_flush(); flush(); sleep(1);
}
活动示例
event: userconnect
data: {"username": "bobby", "time": "02:33:48"}
event: usermessage
data: {"username": "bobby", "time": "02:34:11", "text": "Hi everyone."}
答案 1 :(得分：1)
为了解决这个问题，我添加了一个像这样的监听器事件
var evtSource = new EventSource("poll.php");
evtSource.addEventListener("ping", function(e) {
var obj = JSON.parse(e.data);
processMessages(obj);
}, false);
我写了processMessages函数，就像这样
function processMessages(obj) {
$.each(obj.calls, function(i, item){
$.each(item, function(z, c){
var interactionId = isset(c.interactionId, 0);
var Eic_CallDirection = isset(c.Eic_CallDirection, '');
var Eic_State = isset(c.Eic_State, '');
var mid = isset(c.mid, '');
var account_id = isset(c.account_id, '');
var Eic_RemoteAddress = isset(c.Eic_RemoteAddress, '');
if(Eic_State == '' || Eic_CallDirection == ''){
return;
}
//incoming call that is not answered
if( Eic_CallDirection == 'I' && Eic_State == 'A'){
var msg = '';
if(mid != ''){
msg = ' MID: ' + mid;
}
if(account_id != ''){
msg = ' Account ID: ' + account_id;
}
console.log('Incomming Call From ' + Eic_RemoteAddress + msg );
return;
}
//on hold
if( Eic_State == 'H'){
console.log('Phone number ' + Eic_RemoteAddress + ' is on hold' );
return;
}
//voicemail
if( Eic_State == 'M'){
console.log('Phone number ' + Eic_RemoteAddress + ' is on leaving a voicemail' );
return;
}
//connected call
if(Eic_State == 'C'){
console.log('Live Call With ' + Eic_RemoteAddress );
return;
}
//Dialling call
if(Eic_State == 'O' && Eic_CallDirection = 'O'){
console.log('Dialling ' + Eic_RemoteAddress );
return;
}
//Dialling call
if(Eic_State == 'R'){
console.log('Outbound call is rining and waiting for answer ' );
return;
}
//Call Disconnected
if(Eic_State == 'I' || Eic_State == 'E' ){
console.log('Hungup with ' + Eic_RemoteAddress );
return;
}
});
});
}
我的PHP代码看起来像这样
while(1){
$result = array('test' => 'This is a test records');
echo 'event: ping' . "\n";
echo 'data: ' . json_encode($result) . "\n";
echo "\n"; //required
ob_flush(); flush(); sleep(1);
}
PHP中很少有人指出。重要的是在每一行之后有\n，在最后一行有一个。{1}}。同样重要的是要查找位于我的PHP代码中的关键字ping以及我的javascript代码中的监听器事件。如果你改变它，你必须在2个地方改变它。
我希望这有助于某人：）