Android 到 node.js 通信 [英] Android to node.js communication

问题描述

我看到有几个类似的主题，但我找不到我的答案.

I saw there are a couple of similar threads but i could not find my answer.

我正在制作和 android 应用程序，我想使用节点作为服务器进行实时通信.

I'm making and android app, an i want to use node as server for real time communication.

我真的无法让它发挥作用.

I really cannot get this to work.

可能我做错了很多事情，但我想试着去理解.

Probably I'm making many many things wrong but i like to try to understand.

我的服务器很简单

var http = require('http'),  
io = require('socket.io'),
server = http.createServer(function(req, res){ 
     res.writeHead(200, {'Content-Type': 'text/html'}); 
     res.end(':)'); 
});
server.listen(8080);
var socket = io.listen(server); 
socket.on('connection', function(client){
    client.send("hello");
    console.log("connected!");
});

这行得通……我用一个网络应用程序试过了，我可以连接.

and this works... I tried this with a web app and I can connect.

但是我不能用 java..

But I can't with java..

我尝试了 kryonet，但出现已连接但注册超时"之类的异常

I tried kryonet but I get an exception like "connected but timeout on registration"

我尝试了 weberknecht 我收到一个在创建到 ws://的套接字时出错"184.xxxxxx:8080"

I tried weberknecht I get a "error while creating socket to ws://184.xxxxxx:8080"

我尝试了 TooTallNate，没有运气，它只是调用了 onClose 方法.

I tried TooTallNate, no luck, it just call onClose method.

我尝试了 jWebSocket 但我无法让它工作......

I tried jWebSocket but I couldn't get it to work...

所以我在这里寻求帮助，有人知道如何完成吗?有什么建议吗?

So I'm here, asking for help, does anyone knows how to get this done? any suggestion?

附言对于 TooTallNate 我正在使用这样的东西:

P.S. for TooTallNate I'm using something like this:

Net net = new Net(new URI("ws://184.xxxxxx:8080"),WebSocketDraft.DRAFT76);

问题可能出在这里吗?

更新:我处理了这个！睡个好觉后，我有了这个主意，我正在使用 socket.io，坏主意……现在我使用 Node Websocket 服务器，带有 weberknecht.服务器看起来像这样:

UPDATE: I handled this! after a good sleep I had the idea, I was using socket.io, bad idea... now I use Node Websocket Server with weberknecht. The server looks like this:

var ws = require("websocket-server");

var server = ws.createServer();

server.addListener("connection", function(client){
    console.log("new connection");
    client.send("aaaaaa");
    client.addListener("message", function(msg){
    });
});

server.listen(8080);

和客户:

try {
    URI url = new URI("ws://184.106.69.64:8080/");
    WebSocket websocket = new WebSocketConnection(url);
    websocket.setEventHandler(new WebSocketEventHandler() {
        public void onOpen(){
            System.out.println("--open");
        }    
        public void onMessage(WebSocketMessage message){
            System.out.println("--received message: " + message.getText());
        }   
        public void onClose(){
            System.out.println("--close");
        }
    });

    websocket.connect();
    websocket.send("hello world");
}
catch (WebSocketException wse) {
    wse.printStackTrace();
}
catch (URISyntaxException use) {
    use.printStackTrace();
}

推荐答案

我是 node-websocket-server (nws) 的作者，我很确定 node-websocket-server 工作和套接字的原因.io不是，是由于每个的执行.NWS 将自动协商使用正确的草案，并且它也有希望 90-100% 符合 76 和 75 的草案.

I'm the author of node-websocket-server (nws), and I'm pretty sure the reason for node-websocket-server working and socket.io not, is due to the implementation of each. NWS will auto negotiate the right draft to use, and it also has a hopefully 90-100% compliance with the drafts of 76 and 75.

对于socket.io，我不能过多评论，但我最后看，它的websocket实现相当糟糕.

As for socket.io, I can't comment too much, but the last I looked, it's websocket implementation was rather poorly implemented.

我目前正在开发一个名为 node-websocket-protocol 的项目，它可以被 socket.io、faye 等使用，为他们提供真正可靠且合规的 websocket 实现.这也将替换 2.0.0 版本中 node-websocket-server 中的当前实现.

I'm currently working on a project at the moment called node-websocket-protocol, which will be able to be used by socket.io, faye, etc as to provide them with a really reliable and compliant websocket implementation. This will also replace the current implementation in node-websocket-server in version 2.0.0.

附带说明，如果您不想托管自己的 websocket 服务器，可以考虑使用 Pusher.com，他们实际上是我的雇主.

As a side note, if you'd rather not host your own websocket server, you could look at using Pusher.com, who're actually my employers.

[更新]至于 websockets 是否是最适合您的应用程序的技术选择，这取决于您的应用程序需要什么类型的数据和交互.在移动设备上，如果您只是发送推送通知，最好使用诸如urbanairship 或notifio 之类的东西.

[Update] As for whether websockets are the most appropriate technology choice for your application, is a matter of what type of data and interaction your application needs. On a mobile device, it may be best to use something like urbanairship or notifio if you're just sending push notifications.

问候，迈克尔·史密斯

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