Ajax请求Redis的订阅操作无返回-PHP Tutorial-php.cn

Ajax请求Redis的订阅操作无返回

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Release： 2016-06-06 20:21:28

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界面上有一个按钮，点击向后台发送Ajax请求，请求的文件内容：

redis.php:

<code class="php">ini_set('default_socket_timeout',25);

$redis = new Redis();
$conn = $redis->connect('127.0.0.1','6379');

if($conn){
    $redis->subscribe(array('XGD'),'ckr');
}else{
    echo '本地Redis无法连接！';
    exit;
}

function ckr($instance,$channel,$msg){
    echo $msg;
}</code>

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然后在服务器模拟向频道XGD发布消息，发布操作代码：

Publish.php:

<code class="php">$redis = new Redis();

$conn = $redis->connect('127.0.0.1','6379');

if($conn){
    $i=0;
    while(true){
        sleep(1);
        $i++;
        $respose['id'] = uniqid();
        $respose['v_ltl_status'] = uniqid();
        $respose['ltl_time'] = uniqid();
        $respose['ltl_reckon'] = uniqid();
        $respose['ltl_cardno'] = uniqid();
        $respose['card_type'] = uniqid();
        $respose['card_name'] = uniqid();
        $respose['ltl_cardflag'] = uniqid();
        $respose['rsd_bicc'] = uniqid();
        $respose['v_ltl_type'] = uniqid();
        
        $res_json =  json_encode(array('result'=>$respose));
        
        $redis->publish('XGD',$res_json);
        //echo '数据已经发布'.$i.'<br>';
    }
}else{
    echo '本地Redis无法连接！';
    exit;
}</code>

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服务器使用Centos6.5, 在服务端用php命令运行publish.php,
同时进入本地redis-cli命令行，执行命令： subscribe XGD,
界面就循环出现订阅频道发布的内容，重新开启一个命令终端，用php命令执行redis.php,在命令行也出现了订阅频道发布的信息，问题是：
在Web前端的Ajax请求总是运行超时，没有返回结果。不知道为什么，还请各位大神赐教。

Ajax代码是：

<code class="javascript">function loadResult(){
        //$.pdialog.open("__URL__/getRedisInfo",'operate','操作结果',{'width':'700','height':'400','mask':true});
        
        var dt = new Date();
        var ts = dt.getTime();
        $.ajax({
            cache : false,
            type : 'post',
            url : '/redis.php',
            global: false,
            dataType : 'json',
            async : true,
            data:{time:ts},
            timeout:1000,
            success:function(data){
                $(".redis").html($(".redis").html()+data.result);
            },
            complete:function(){
                loadResult();
            }
        })
        
    }</code>

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(项目使用了Thinkphp+DWZ)

================================================================

回复内容：

界面上有一个按钮，点击向后台发送Ajax请求，请求的文件内容：

redis.php:

<code class="php">ini_set('default_socket_timeout',25);

$redis = new Redis();
$conn = $redis->connect('127.0.0.1','6379');

if($conn){
    $redis->subscribe(array('XGD'),'ckr');
}else{
    echo '本地Redis无法连接！';
    exit;
}

function ckr($instance,$channel,$msg){
    echo $msg;
}</code>

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然后在服务器模拟向频道XGD发布消息，发布操作代码：

Publish.php:

<code class="php">$redis = new Redis();

$conn = $redis->connect('127.0.0.1','6379');

if($conn){
    $i=0;
    while(true){
        sleep(1);
        $i++;
        $respose['id'] = uniqid();
        $respose['v_ltl_status'] = uniqid();
        $respose['ltl_time'] = uniqid();
        $respose['ltl_reckon'] = uniqid();
        $respose['ltl_cardno'] = uniqid();
        $respose['card_type'] = uniqid();
        $respose['card_name'] = uniqid();
        $respose['ltl_cardflag'] = uniqid();
        $respose['rsd_bicc'] = uniqid();
        $respose['v_ltl_type'] = uniqid();
        
        $res_json =  json_encode(array('result'=>$respose));
        
        $redis->publish('XGD',$res_json);
        //echo '数据已经发布'.$i.'<br>';
    }
}else{
    echo '本地Redis无法连接！';
    exit;
}</code>

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Ajax代码是：

<code class="javascript">function loadResult(){
        //$.pdialog.open("__URL__/getRedisInfo",'operate','操作结果',{'width':'700','height':'400','mask':true});
        
        var dt = new Date();
        var ts = dt.getTime();
        $.ajax({
            cache : false,
            type : 'post',
            url : '/redis.php',
            global: false,
            dataType : 'json',
            async : true,
            data:{time:ts},
            timeout:1000,
            success:function(data){
                $(".redis").html($(".redis").html()+data.result);
            },
            complete:function(){
                loadResult();
            }
        })
        
    }</code>

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(项目使用了Thinkphp+DWZ)

================================================================

阻塞模式，不会结束，所以就超时，你在callback里面exit看看？