Titanium中的socket通信
Titanium从1.7开始强化了TCP通信方面的功能。一般大家说的通信都指的是HTTP通信，今天我们使用TCP socket,就可以跟很多的service实现通信。
在socket的同时，Titanium也支持二进制码的操作：
T.Buffer
Ti.Codec
但是稍微有些复杂，HTTP以外的协议也能够使用。
那么我们就尽早的看看socket通信的例子吧。
var win = Ti.UI.createWindow({ title: "Win1" });var textarea = Ti.UI.createTextArea({value: ''});win.add(textarea);win.open();// 读数据用Buffervar readBuffer = Ti.createBuffer({length:1024});// socket部分var socket;socket = Ti.Network.Socket.createTCP({ host: "blog.masuidrive.jp", port: 80, connected: function(e) { // 连接到socket textarea.value += ">> Connected to host " + socket.host + "\n"; // 组成要写入的二进制数据 var data = Ti.createBuffer({value:"GET /tmp/test.html HTTP/1.1\r\n"+ "Host: blog.masuidrive.jp\r\n\r\n"}); // 写入到socket var bytesWritten = socket.write(data); var bytesRead; // 循环读取直到结束 while( (bytesRead = socket.read(readBuffer)) >= 0 ) { // 将读取的二进制转化为字符串 var stringData = Ti.Codec.decodeString({ source: readBuffer, length: bytesRead }); textarea.value += bytesRead + "> " + stringData + "\n"; // 清空读取用Buffer readBuffer.clear(); } // 关闭socket socket.close(); }, closed: function(e) { // socket关闭之后 textarea.value += ">> Socket closed"; }});socket.connect();
var win = Ti.UI.createWindow({ title: "Win1" });var textarea = Ti.UI.createTextArea({value: ''});win.add(textarea);win.open();var socket;var readBuffer = Ti.createBuffer({length:1024});// 数据被读入时调用var readCallback = function(e) { // 数据完成后关闭socket if (e.bytesProcessed == -1) { // EOF textarea.value += ">> Received socket closed\n"; socket.close(); return; } // 显示读入的数据 var str = Ti.Codec.decodeString({source:readBuffer, length:e.bytesProcessed}); textarea.value += e.bytesProcessed + "> " + str + "\n"; // 下回读入数据时设定Buffer和回调 Ti.Stream.read(socket, readBuffer, readCallback);};socket = Ti.Network.Socket.createTCP({ host: "blog.masuidrive.jp", port: 80, connected: function(e) { // 读入数据时Buffer和回调 Ti.Stream.read(socket, readBuffer, readCallback); textarea.value += ">> Connected to host " + socket.host + "\n"; // 写入处理 var data = Ti.createBuffer({value:"GET /tmp/test.html HTTP/1.1\r\nHost: blog.masuidrive.jp\r\n\r\n"}); var bytesWritten = socket.write(data); }, closed: function(e) { textarea.value += ">> Socket closed"; }});socket.connect();