我试图在NodeJS中测试setKeepAlive()的功能.我在同一本地网络中的不同机器上运行Server.js和client.js.然后,我关闭了客户端计算机上的wifi连接(断开互联网连接). 15分钟后,仍然没有任何消息被抛出.这是为什么?没有setKeepAlive()工作?
这是服务器和客户端的代码:
Client.js
var net = require('net');
var HOST = '192.168.0.16';
var PORT = 8333;
var client = net.connect(PORT, HOST, function connected(){
console.log('connected');
});
client.setKeepAlive(true, 1);
client.write('hi server');
client.on('data', function(data) {
console.log('Received' + data);
});
client.on('close', function(){
console.error('connection closed');
)};
client.on('error', function(err){
console.error('error', err);
});
Server.js
var net = require('net');
var HOST = '192.168.0.16';
var PORT = 8333;
net.createServer(function(sock) {
console.log('CONNECTED: ' + sock.remoteAddress + ':' + sock.remotePort);
sock.on('data', function(data) {
console.log('DATA ' + sock.remoteAddress + ': ' + data);
sock.write('hi client');
});
sock.on('close', function(data) {
console.log('CLOSED: ' +
sock.remoteAddress + ' ' + sock.remotePort);
});
sock.on('error', function(error){
console.log('error', error);
});
}).listen(PORT, HOST);
console.log('Server listening on ' + HOST +':'+ PORT);
最佳答案 我将使用setInterval(sendKeepAliceFunc,delay)和socket.setTimeout()自己实现keep_alive
keep_alive消息之间的延迟应该足够大(~10000ms),如果延迟