即使整个脚本包含在 try catch block 中,我的服务器上仍然出现两个关闭进程的异常。 异常(exception)情况是:
events.js:160
throw er; // Unhandled 'error' event
^
Error: write EPIPE
at exports._errnoException (util.js:1022:11)
at WriteWrap.afterWrite [as oncomplete] (net.js:804:14)
和
Error: invalid opcode: 7
at Receiver.start (/home/mysite/public_html/node_modules/ws/lib/Receiver.js:211:18)
at Receiver.add (/home/mysite/public_html/node_modules/ws/lib/Receiver.js:134:14)
at Socket._ultron.on (/home/mysite/public_html/node_modules/ws/lib/WebSocket.js:139:22)
at emitOne (events.js:96:13)
at Socket.emit (events.js:188:7)
at readableAddChunk (_stream_readable.js:176:18)
at Socket.Readable.push (_stream_readable.js:134:10)
at TCP.onread (net.js:551:20)
来自套接字库。
有谁知道是什么原因造成的以及如何预防它?
编辑:
摘录:
try
{
wss.broadcast = function broadcast(data) {
wss.clients.forEach(function (client) {
if (client.readyState == WebSocket.OPEN) {
client.send(data);
}
});
};
wss.on("connection", function (ws)
{
if(blacklist.indexOf(GetClientIP(ws)) != -1)
{
console.log("Kicking banned");
ws.close();
return;
}
clientCount++;
wss.broadcast(welcomeMessage);
ws.on("message", function (message)
{
ProcessMessage(message);
});
ws.on("close", function ()
{
clientCount--;
wss.broadcast(goodbyeMessage);
});
});
}
catch(exxx)
{
console.log("Caught a exception);
console.log(exxx);
}
最佳答案
将错误处理程序附加到您的 websocket 以捕获错误:
wss.on("connection", function (ws) {
...
ws.on('error', function(err) {
console.log('Websocket error!: ' + err);
});
...
});
这可以防止 Node.js 在出现 EPIPE 之类的错误时崩溃。
关于javascript - Node.js 中的套接字异常,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/43195092/