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我正在寻找通过UDP连接正在检索的数据创建Web服务,并决定使用Node.js和Socket.IO但是,我认为这种组合不会给我想要的结果。我希望有人能够指引我走向正确的方向。从UDP套接字转发数据到HTTP服务器Node.js
现在,我有以下几点:
// require http, socket and socket.io
var http = require('http');
var dgram = require('dgram');
var socketio = require('socket.io');
// setup HTTP server, Socket.IO and UDP Socket
var server = http.createServer(handleRequest),
io = socketio.listen(server),
socket = dgram.createSocket("udp4");
// Every time I receive a UDP Message
socket.on("message", function(msg,rinfo) {
// create a buffer we will store to
var buffer = new Buffer(msg.length);
// copy entire message into buffer
msg.copy(buffer, 0, 0, msg.length);
// if the message has length > 3
if (buffer.length > 3) {
.... take data off the socket ....
// Create an XML document
var xml = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n";
xml += ... ;
xml += ... ;
// emit a udp message event
io.sockets.emit('udp message', xml);
}
});
function handleRequest(req, res) {
res.writeHead(200, {'content-type': 'text/html'});
res.end("<!doctype html> \
<html><head> \
<script src='/socket.io/socket.io.js'></script> \
<script> \
var socket = io.connect('localhost', {port: 8888}); \
socket.on('udp message', function(message) { res.end(message) }); \
</script></head></html>");
}
socket.bind(9876);
server.listen(8888);
一切正常recv'ing的UDP数据流,创建XML文档,我可以看到XML被发送到WebSocket的,但是,我不能检索XML。基本上,我想要一个用户连接到Web服务后连续流式传输的XML
想法? 丹尼斯