这是我的问题:
我一直在尝试将socket.io-java-client用于Android应用,但我最终会出现握手错误(见下文)。
这是我的应用源代码:
public void runIO(){
try {
SocketIO socket = new SocketIO("http://192.168.1.60:1337");
socket.connect(new IOCallback() {
@Override
public void onMessage(JSONObject json, IOAcknowledge ack) {
try {
System.out.println("Server said:" + json.toString(2));
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onMessage(String data, IOAcknowledge ack) {
System.out.println("Server said: " + data);
}
@Override
public void onError(SocketIOException socketIOException) {
System.out.println("an Error occured");
socketIOException.printStackTrace();
}
@Override
public void onDisconnect() {
System.out.println("Connection terminated.");
}
@Override
public void onConnect() {
System.out.println("Connection established");
}
@Override
public void on(String event, IOAcknowledge ack, Object... args) {
System.out.println("Server triggered event '" + event + "'");
}
});
// This line is cached until the connection is establisched.
socket.send("Hello Server!");
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
和我的Node.js / Socket.io:
var app = require('http').createServer(handler)
var io = require('socket.io')(app);
var fs = require('fs');
app.listen(1337);
function handler (req, res) {
fs.readFile(__dirname + '/index.html',
function (err, data) {
if (err) {
res.writeHead(500);
return res.end('Error loading index.html');
}
res.writeHead(200);
res.end(data);
});
}
io.on('connection', function (socket) {
socket.emit('news', { hello: 'world' });
socket.on('my other event', function (data) {
console.log(data);
});
});
我收到以下错误:
06-09 03:59:53.955: W/System.err(11738): io.socket.SocketIOException: Error while handshaking
06-09 03:59:53.965: W/System.err(11738): at io.socket.IOConnection.handshake(IOConnection.java:322)
06-09 03:59:53.965: W/System.err(11738): at io.socket.IOConnection.access$7(IOConnection.java:292)
06-09 03:59:53.970: W/System.err(11738): at io.socket.IOConnection$ConnectThread.run(IOConnection.java:199)
06-09 03:59:53.970: W/System.err(11738): Caused by: java.io.FileNotFoundException: http://192.168.1.60:1337/socket.io/1/
06-09 03:59:53.975: W/System.err(11738): at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:186)
06-09 03:59:53.975: W/System.err(11738): at io.socket.IOConnection.handshake(IOConnection.java:313)
在浏览器上运行,http://192.168.1.60:1337/socket.io/1/
的页面返回以下消息(通过浏览器):
{"code":0,"message":"Transport unknown"}
我不知道如何使其发挥作用...请帮助:x
谢谢:D
编辑:
正如 Larky 所说,我不得不将我的Socket.io版本降级为 0.9.16 。它就像一个带有以下节点代码的魅力:
var io = require('socket.io').listen(80);
io.on('connection', function (socket) {
socket.emit('news', { hello: 'world' });
socket.on('my other event', function (data) {
console.log(data);
});
});
答案 0 :(得分:7)
我今天通过在服务器端(早期版本的socket.io Node模块)恢复到早期版本的socket.io来解决了这个问题。协议可能改变了吗?
要做到这一点:
删除node_modules文件夹中的socket.io文件夹。
在控制台上输入:
npm install socket.io@0.9.16
应该这样做......它对我有用:)
(显然这并没有完全解决问题但是早期版本的socket.io对我而言对我来说没有问题)