最近在做项目时,遇到一个比较诡异的需求。要求在客户端页面与客户端软件进行通信。网上发现了一个好东西,通过javascipt+flash能实现Socket的功能,具体看如下链接:http://www.maiyun.net/components/socket/index.html,有这么好的已经封装好的Socket类干嘛不用^^
以下为 Asp.net ,c#开发的通讯DEMO。
前台代码:
![](https://images.cnblogs.com/OutliningIndicators/ExpandedBlockStart.gif)
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<script type="text/javascript" src="flash.min.js"></script>
<script type="text/javascript" src="socket.min.js"></script>
<script type="text/javascript">
function CalltoServer() {
var Socket = new Maiyun_Socket();
Socket.Init();//初始化组件
Socket.OnLoad(function() {//组件初始化成功后触发
Socket.Open("127.0.0.1", 9010);//连接服务器
Socket.OnConnect(function() {//连接成功后触发
alert("连接成功");
Socket.Send("来自前台WeB");//发送消息
});
Socket.OnData(function(msg) {//接收消息
alert(msg);
});
});
}
</script>
</head>
<body>
<input type="button" value="ClientMe" onclick="CalltoServer()" />
</body>
</html>
后台代码:
![](https://images.cnblogs.com/OutliningIndicators/ExpandedBlockStart.gif)
static void Main(string[] args)
{
string host = "127.0.0.1";
int port = 9010;
IPAddress ip = IPAddress.Parse(host);
IPEndPoint ipe = new IPEndPoint(ip, port);
Socket sc = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
sc.Bind(ipe);
sc.Listen(5);
while (true)
{
Socket clientSocket = sc.Accept();
Console.WriteLine("建立连接:"+clientSocket.RemoteEndPoint.ToString());
//接收数据
byte[] buff = new byte[1024];//缓冲区
int count = clientSocket.Receive(buff, buff.Length, 0);//接收的字节
string recstr = Encoding.UTF8.GetString(buff, 0, count);//byte[]转换成string
Console.WriteLine("接受到客户端数据:" + recstr);
//flash socket 安全验证
if (recstr.IndexOf("<policy-file-request/>") >= 0)
{
//此处为C#语言的回复
byte[] data = System.Text.Encoding.UTF8.GetBytes("<?xml version=\"1.0\"?><cross-domain-policy><allow-access-from domain=\"*\" to-ports=\"9010\" /></cross-domain-policy>\0");
clientSocket.Send(data);
clientSocket.Close();
continue;
}
//发送数据
string context = "我是服务器!";
byte[] sendStr = Encoding.UTF8.GetBytes(context);
clientSocket.Send(sendStr);
clientSocket.Close();
Console.WriteLine("向客户端发送:"+context);
}
}
flash 安全验证请查看如下文章:http://cloud21.javaeye.com/blog/617751
结果如下: