blocks|key|2995436|text|再多找点东西就能得到这样的结果：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2995437|使用Google在Android中推送通知|offset|length|2995438|应该是你要找的东西。以下是谷歌网站的链接，也给出了一些新的见解：http://developer.android.com/google/gcm/http.html|2995439|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/18266623/push-notifications-in-android-using-google-app-engine|1|http://developer.android.com/google/gcm/http.html^0|0|0|L|0|0|W|1D|1|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@$D|T|E|U|1|V]]|A|$]]|$1|F|3|G|5|6|7|W|8|@]|9|@$D|X|E|Y|1|Z]]|A|$]]|$1|H|3|-4|5|6|7|10|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]|P|$5|K|L|M|A|$N|Q]]]]

A little more searching would get you this :

<a href="https://stackoverflow.com/questions/18266623/push-notifications-in-android-using-google-app-engine">Push Notifications in Android using Google App Engine</a>

It should be what you're looking for. Here's the link to Google's site also giving some added insight on it : <a href="http://developer.android.com/google/gcm/http.html" rel="nofollow noreferrer">http://developer.android.com/google/gcm/http.html</a>

blocks|key|2995474|text|使用server.One发送下游消息的方法有几种，可以编写PHP.You脚本将消息发送到GCM(GCM实际上向电话发送通知)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2995475|这就是我为我的应用程序想出的：|2995476|我用过卷发|2995477|++++$url+=+'https://android.googleapis.com/gcm/send';
$receive_id=$_POST['receiver_key'];
$message=$_POST['message'];

$registrationIDs+=+array(+$receive_id);


++++$fields+=+array(
++++++++'registration_ids'+=>+$registrationIDs,
++++++++'data'+=>+array(+"message"+=>+$message+),
++++);
++++$headers+=+array(
++++++++'Authorization:+key='+.+$api_key,
++++++++'Content-Type:+application/json'
++++);

+++$ch=curl_init();

curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_POST,true);
curl_setopt(+$ch,+CURLOPT_HTTPHEADER,+$headers+);
curl_setopt(+$ch,+CURLOPT_RETURNTRANSFER,+true+);
curl_setopt(+$ch,+CURLOPT_SSL_VERIFYPEER,+false);
curl_setopt($ch,+CURLOPT_HEADER,+true);
curl_setopt(+$ch,+CURLOPT_POSTFIELDS,+json_encode($fields)+);

+$curl_result+=+curl_exec(+$ch+);|code-block|syntax|javascript|2995478|实际上，我所做的是让应用程序触发这个PHP脚本，当required.This从服务器发送下游消息时运行。|2995479|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|R|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

There are several ways of sending downstream message from server.One being using PHP.You can write PHP script for sending message to the GCM(which actually sends notification to phone).

This is what I came up with for my app:

I have used curl

<pre><code> $url = 'https://android.googleapis.com/gcm/send';
$receive_id=$_POST['receiver_key'];
$message=$_POST['message'];

$registrationIDs = array( $receive_id);


 $fields = array(
 'registration_ids' =&gt; $registrationIDs,
 'data' =&gt; array( "message" =&gt; $message ),
 );
 $headers = array(
 'Authorization: key=' . $api_key,
 'Content-Type: application/json'
 );

 $ch=curl_init();

curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_POST,true);
curl_setopt( $ch, CURLOPT_HTTPHEADER, $headers );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt( $ch, CURLOPT_POSTFIELDS, json_encode($fields) );

 $curl_result = curl_exec( $ch );
</code></pre>

What I actually did is let the app trigger this PHP script to run when required.This is what called sending downstream message from server.

blocks|key|1696595|text|由于您正在寻找具有推送通知的特定服务器功能，我建议使用一些为您完成此功能的软件，而不是为服务器编写所有代码。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1696596|我知道的一个这样的软件是IBM+MobileFirst+(以前称为Worklight)..。它的推送通知嵌入在..。可能会有更多的服务器软件也这样做。|1696597|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Since you are looking for a specific server functionality with push notifications, I would suggest to go with some software that does it for you instead of writing all the code for the server. 

One such software I know is IBM MobileFirst (previously known as Worklight)... Its got push notification embed in that... There could be many more server softwares that do the same

blocks|key|653695|text|看看我的dev推送服务器。您所需要的只是粘贴您的google密钥和注册id在相应的字段，并发送推送到您的客户端。您还可以查看推送服务器在比特桶上的源代码。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|653696|entityMap|0|LINK|mutability|MUTABLE|url|http://1-dot-sigma-freedom-752.appspot.com/|1|https://bitbucket.org/azatsepin/gcmpusher^0|4|8|0|1V|5|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]|$A|R|B|S|1|T]]|C|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]]]

Look at my <a href="http://1-dot-sigma-freedom-752.appspot.com/" rel="nofollow">dev push server</a>. All you need just paste your google api key and registration id in corresponding fields and send push to your client. Also you can look source code of that push server <a href="https://bitbucket.org/azatsepin/gcmpusher" rel="nofollow">on the Bitbucket</a>

blocks|key|2995560|text|你不能自己处理电话的下游问题。流程中有几个部分如下所示。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2995561|用GCM设置自己(听起来你已经做过了)|2995562|让app为GCM注册该设备，并设置接收推送消息的处理程序。这通常是在应用程序启动时完成的，所以是的，您需要事先与设备进行通信。您通常还希望给他们选择退出推送消息的选项。应用程序方面的大部分内容都是这里概述的。|offset|length|2995563|有一个脚本，当您的数据库更新时触发。然后，您可以通过将消息和特定设备的注册ID作为有效负载传递给GCM，从而调用GCM发送消息。|2995564|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/google/gcm/client.html^0|0|0|2Q|2|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$F|U|G|V|1|W]]|A|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

You don't handle the downstream to the phone yourself. You have several parts to the process that look like this.

Set yourself up with GCM (sounds like you've done already)

Have the app register that device for GCM and set up the handler for receiving push messages. This is usually done on app launch, so yes you will need prior communication with a device. You will also typically want to give them the option to opt out of push messages. Most of the app side of things are outlined <a href="http://developer.android.com/google/gcm/client.html" rel="nofollow">here</a>

Have a script that fires when your database is updated. You can then make the call to GCM to send the message by passing the message and specific devices' registration IDs as your payload.

blocks|key|653767|text|我只想更新这篇文章，以防这些信息对其他人有用。所以从本质上说，我所做的是，当用户安装应用程序时，它将在google注册以获得注册id，然后将其发送到我的数据库，以便稍后我需要它时使用。现在，当用户通过添加post或添加注释来更新数据库时，它将触发一个php脚本，该脚本在tomcat上运行我的web+servlet，从那里我的tomcat+servlet查询我的数据库，并确定向谁发送消息(注册ID)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|653768|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I just want to update this post just in case this information can be useful to others. So essentially what I've done is when a user installs the app, it will register with google to get the registration id then it will send it to my database for when i need it later. Now when a user updates the database by adding a post or lets say adding a comment, it will fire off a php script that runs my web servlet on tomcat, from there my tomcat servlet queries my database and figures out who(registration ID) to send a message to.

I'm at the point in my android app that I need to implement push notifications, I already have a Google API key and all and have enabled push notifications on the key. 

I understand that notifications are to be sent from the server, downstream to the app. 

Essentially what I am trying to do is whenever my database gets updated, I want a send a message to specific devices with no message in return.

But what I don't particularly understand is sending the message downstream to the phone. How is this done, I've only ever sent HTTP messages upstream to my server and am somewhat confused on how to get this done. Is there any server applications that can do this, if so what am I looking for.

I need suggestions on sending push notifications

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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在我的android应用程序中，我需要实现推送通知，我已经有了Google键，并且启用了按键上的推送通知。据我所知，通知将从服务器发送到应用程序的下游。本质上，我试图做的是，每当我的数据库得到更新，我希望发送一条消息到特定的设备，而没有消息作为回报。但我不太明白的是把信息发送到电话的下游。这是如何做到的，我只向服务器上...

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