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php-PubNub服务器无法正确格式化消息

2019-10-27 19:26:14 作者：互联网

我具有服务器配置,可以与Android客户端通话：

<?php

require_once("mysql.class.php");
require_once("lib/autoloader.php");


// Setting up the PubNub Server:
use Pubnub\Pubnub;

$pubnub = new Pubnub(
    "pub-c...",  ## PUBLISH_KEY
    "sub-c..."  ## SUBSCRIBE_KEY
);


// Publishing :
$post_data = json_encode(array("type"=> "groupMessage", "data" => array("chatUser" => "SERVER", "chatMsg" => "Now lets talk", "chatTime"=>1446514201516)));
$info = $pubnub->publish('MainChat', $post_data);

print_r($info);
print_r($post_data);

?>

和html：

<!doctype html>
<html>
<head>
    <title>PubNub PHP Test Page</title>
</head>
    <body>
        <form method="POST" action="index.php">
            <input type="submit" name="submit" value="TestSendMessage" />
        </form>
    </body>
</html>

由于我可以看到消息到达客户端Android应用程序的日志控制台,因此该发布功能在服务器中起作用,但是该消息从未正确解析,因此在没有SubscribeCallback的情况下,它不会出现在列表视图中：

public void subscribeWithPresence(String channel) {
    this.channel = channel;
    Callback subscribeCallback = new Callback() {
        @Override
        public void successCallback(String channel, Object message) {
            if (message instanceof JSONObject) {
                try {
                    JSONObject jsonObj = (JSONObject) message;

                    JSONObject json = jsonObj.getJSONObject("data");
                    final String name = json.getString(Constants.JSON_USER);
                    final String msg = json.getString(Constants.JSON_MSG);
                    final long time = json.getLong(Constants.JSON_TIME);
                    if (name.equals(mPubNub.getUUID())) return; // Ignore own messages
                    final ChatMessage chatMsg = new ChatMessage(name, msg, time);
                    presentActivity.runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            // Adding messages published to the channel
                            mChatAdapter.addMessage(chatMsg);
                        }
                    });
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
            Log.d("PUBNUB", "Channel: " + channel + " Msg: " + message.toString());

        }

        @Override
        public void connectCallback(String channel, Object message) {
            Log.d("Subscribe", "Connected! " + message.toString());
            //hereNow(false);
            // setStateLogin();
        }
    };
    try {
        mPubNub.subscribe(this.channel, subscribeCallback);
        //presenceSubscribe();
    } catch (PubnubException e) {
        e.printStackTrace();
        // Checking if success
        Log.d("Fail subscribe ", "on channel: " + channel);
    }
}

通过单击TestSendMessage在浏览器中测试服务器输出,将产生：

Array ( [0] => 1 [1] => Sent [2] => 14465159776373950 ) {"type":"groupMessage","data":{"chatUser":"SERVER","chatMsg":"Now lets talk","chatTime":1446514201516}}

在应用程序中,从以下行输出日志：Log.d(“ PUBNUB”,“ Channel：” channel“ Msg：” message.toString());

返回值：D / PUBNUB：频道：MainChat消息：{“ type”：“ groupMessage”,“ data”：{“ chatUser”：“ SERVER”,“ chatMsg”：“ Now let talk”,“ chatTime”：1446514201516}}

确实应该这样,但是消息永远不会出现在消息的ListView中,从而使JSON解析失败.

JSON标签在Constants类中很简单：

public static final String JSON_GROUP = "groupMessage";
public static final String JSON_USER = "chatUser";
public static final String JSON_MSG = "chatMsg";
public static final String JSON_TIME = "chatTime";

如何重新配置服务器发送,以成功进行应用内解析？

解决方法:

通过PubNub发送JSON

Send the JSON object without stringifying it first.对于PHP,不要对消息进行json_encode. PubNub SDK将为您编码和解码.

这个：

$post_data = array("type"=> "groupMessage", "data" => array(
    "chatUser" => "SERVER", "chatMsg" => "Now lets talk", 
    "chatTime"=>1446514201516));

不是这个：

$post_data = json_encode(array("type"=> "groupMessage", "data" => array(
    "chatUser" => "SERVER", "chatMsg" => "Now lets talk", 
    "chatTime"=>1446514201516)));

请解决此问题.

标签：pubnub,json,php,android
来源： https://codeday.me/bug/20191027/1946688.html