我想开发基本的扩展。这个扩展应该在UDP上进行通信。这个扩展是关于消息。我想创建一个客户端。因为我用Java创建了一个服务器。客户端可以向服务器发送消息，服务器可以向客户端发送消息谷歌浏览器扩展使用UDP

我看看Chrome Developer页面。但这些文件不是最新的。我创建了这样一个基本的客户端：

// values

var address = null;

var connect = null;

var disconnect = null;

// UDP-Object

var echoClient = null;

// -------------------------------------------------------------------------------------------------------------------

window.addEventListener("load", function() {

// input: address.val

address = document.getElementById("address");

// button: connect.val

connect = document.getElementById("connect");

// button: disconnect.val

disconnect = document.getElementById("disconnect");

// button: connect.func

connect.onclick = function(ev) {

if(address.value != ""){

echoClient = newEchoClient(address.value);

}

};

// button: disconnect.func

disconnect.onclick = function(ev) {

echoClient.disconnect();

}

// send data

setInterval(function(){

echoClient.sender();

}, 1000);

});

// -------------------------------------------------------------------------------------------------------------------

var newEchoClient = function(address) {

var ec = new chromeNetworking.clients.echoClient();

ec.sender = attachSend(ec);

var hostnamePort = address.split(":");

var hostname = hostnamePort[0];

var port = (hostnamePort[1] || 7) | 0;

ec.connect(

hostname, port,

function() {

console.log("Connected");

}

);

return ec;

};

var attachSend = function(client) {

var i = 1;

return function(e) {

var data = i;

i++;

client.echo(data, function() {

console.debug(data.data); // the problem is here

});

};

};

但是这段代码不起作用。在Chrome中，我发现了这个错误：

Error in event handler for sockets.udp.onReceive: RangeError: byte length of Uint32Array should be a multiple of 4

at chrome-extension://boeaihphlidceiemkegklmbmefjgogfk/networking.js:84:25

at chrome-extension://boeaihphlidceiemkegklmbmefjgogfk/networking.js:31:34

哪里出错？我对这个问题做了什么？

2017-04-07

JSawyer