Question

我正试图让这个工作起来。我已经在SO上阅读了与NodeJS UDP相关的所有其他答案，但无济于事。我在Windows 10上。

以下是我遇到的错误：

Uncaught Exception: Error: write ENOTSUP
at exports._errnoException (util.js:1022:11)
at ChildProcess.target._send (internal/child_process.js:654:20)
at ChildProcess.target.send (internal/child_process.js:538:19)
at sendHelper (cluster.js:751:15)
at send (cluster.js:534:12)
at cluster.js:509:7
at SharedHandle.add (cluster.js:99:3)
at queryServer (cluster.js:501:12)
at Worker.onmessage (cluster.js:450:7)
at ChildProcess.<anonymous> (cluster.js:765:8)
at emitTwo (events.js:111:20)
at ChildProcess.emit (events.js:191:7)
at process.nextTick (internal/child_process.js:744:12)
at _combinedTickCallback (internal/process/next_tick.js:67:7)
at process._tickDomainCallback [as _tickCallback] (internal/process/next_tick.js:122:9)

这是我的代码：

let dgram = require('dgram'),
        server = dgram.createSocket('udp4'),
        multicastAddress = '239.255.255.250',
        multicastPort = 1900,
        myIp = '192.168.51.133';

    server.bind(multicastPort, myIp, function () {
        server.setBroadcast(true);
        server.setMulticastTTL(128);
        server.setInterface.getbyname(myIp);
        server.addMembership(multicastAddress, myIp);
    });

    //wait for incoming messages and print ip address
    server.on('message', function (data, rinfo) {
        console.log(new Date() + ' RECEIVER received from ', rinfo.address, ':');
        console.log(data.toString());
    });

    //Set up discovery message. Make sure to leave out any extra space in the message.
    var discover_message = new Buffer('M-SEARCH * HTTP/1.1\r\nHost: 239.255.255.250:1900\r\nMan: ssdp:discover\r\nST: colortouch:ecp\r\n');
    server.send(discover_message, 0, discover_message.length, 1900, multicastAddress);

Answer 1

终于找到了答案。问题是由于在Windows上并在Node中使用群集。问题出在server.bind调用上。这是正确的，有效的代码：

server.bind({port: 1900, exclusive: true}, function () {
        console.log('PORT BIND SUCCESS');
        server.setBroadcast(true);
        server.setMulticastTTL(128);
        server.addMembership(multicastAddress, myIp);
    });

修复是传入对象{port：1900，exclusive：true}。资料来源：https://github.com/misterdjules/node/commit/1a87a95d3d7ccc67fd74145c6f6714186e56f571

UDP多播失败 - NodeJS / Windows 10

1 个答案: