Question

我想使用ws处理从客户端收到的ArrayBuffer消息。客户端，我直接收到一个ArrayBuffer感谢 ws.binaryType ，但是服务器端，我没有收到一个ArrayBuffer，但这样的东西（字符串？）：＆＃39;＆lt; ;缓冲区00 00 2a 00 00 00 00 00 00 00 00 00 00 00 00 00＆gt;

服务器如何接收ArrayBuffer？

客户端：

var ws = new WebSocket("ws://localhost:3000/");
ws.binaryType = 'arraybuffer';
ws.onopen = function() {
    var buffer = new ArrayBuffer(15);
    var dv = new DataView(buffer);
    dv.setInt16(1, 42);
    ws.send(buffer);
};

服务器端：

var express = require('express'),
app = express(),
server = require('http').createServer(),
WebSocketServer = require('ws').Server,
wss = new WebSocketServer({
    server: server
});

...

wss.on('connection', function(socket) {
    console.log(message);
    //log : <Buffer 00 00 2a 00 00 00 00 00 00 00 00 00 00 00 00 00>


    socket.on('message', function(message) {

        //would like to read and handle the arraybuffer properly

    });
});

Answer 1

只需convert the Buffer to an ArrayBuffer

var buf = new Uint8Array(message).buffer;
var dv = new DataView(buf);

在WebSocket上接收ArrayBuffer（ws）

1 个答案: