【www.bbyears.com--jquery】
代码如下 index.html<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script>
var chat = {
init:function(){
chat.first();
$("#chat_btn").unbind("click").click(function(){
chat.send();
});
$("#my_chat").keyup(function(){
if(event.keyCode == 13){
chat.send();
}
}); www.111cn.net
},
first:function(){
$.getJSON("data.php",{
action:"first",
type:"l"
},function(data){
chat.btn_status._true();
$("#mwebtime").html(data.time);
$("#chat textarea").val(data.chat);
$("#chat textarea").stop(true,true).animate({scrollTop:9999}, 1);
chat.socket();
});
},
send:function(){
chat.btn_status._false();
$.getJSON("send.php",{
txt:$("#my_chat").val(),
type:"l"
},function(data){
if(data.status==200){
chat.btn_status._false();
$("#my_chat").val("");
setTimeout(function(){
chat.btn_status._true();
},2000);
}
});
},
socket:function(){
$.getJSON("data.php",{
action:"while",
type:"l"
},function(data){
$("#mwebtime").html(data.time);
$("#chat textarea").val(data.chat);
$("#chat textarea").stop(true,true).animate({scrollTop:9999}, 1);
chat.socket();
});
},
btn_status:{
_false:function(){
$("#chat_btn").html("等待").attr("disabled",true);
},
_true:function(){
$("#chat_btn").html("发言").attr("disabled",false);
}
}
}
chat.init();
</script>
data.php
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
header("Cache-Control: no-cache, must-revalidate");
header("Pramga: no-cache");
set_time_limit(0);
$get = $_GET["action"];
$type = $_GET["type"];
$file = $type.".txt";
if(isset($get) && isset($type) && file_exists($file)){
switch($get){
case "first":
$chat = file_get_contents($file);
$json=array(
"status" => 200,
"time" => gmdate("s"),
"chat" => $chat,
);
echo json_encode($json);
break; www.111cn.net
case "while":
$oldsize = filesize($file);
$newsize = filesize($file);
while(true){
if($oldsize!=$newsize){
$chat = file_get_contents($file);
$json=array(
"status" => 200,
"time" => gmdate("s"),
"chat" => $chat,
);
echo json_encode($json);
exit;
}
clearstatcache();
$newsize = filesize($file);
usleep(10000);
}
break;
}
}
?>
send.php
$json = array();
$txt = isset($_GET["txt"])?$_GET["txt"]:"";
$type = isset($_GET["type"])?$_GET["type"]:"";
if($txt!=""){
$file = $type.".txt";
if(file_exists($file)){
$fp = fopen($file,"a");
$str = "rn"."Admin：".$txt;
//$str = $txt."n"//linux;
fwrite($fp, $str);
fclose($fp);
$json["status"]=200;
echo json_encode($json);
exit;
}
}
?>