Node.JS错误：在Ubuntu 14.0.4中监听EADDRINUSE ::: 8080

Question

我有错误Node.JS错误：在Ubuntu 14.0.4中听EADDRINUSE ::: 8080

重新启动服务器之前一切都很好。但重启后我有问题。

我的档案：

var http = require('http');
var port = 8080;
var s = http.createServer(function(request, response) {
    response.writeHead(200);
    response.write("Hello World");
    response.end();
});

s.listen(port);

console.log("Listening on http://127.0.0.1:" + port + "/");

错误：

root@euve249385:/var/www/websocket_proxy# node test1.js
Listening on http://127.0.0.1:8080/
events.js:163
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE :::8080
    at Object.exports._errnoException (util.js:1050:11)
    at exports._exceptionWithHostPort (util.js:1073:20)
    at Server.setupListenHandle [as _listen2] (net.js:1263:14)
    at listenInCluster (net.js:1304:12)
    at Server.listen (net.js:1402:7)
    at Object.<anonymous> (/var/www/websocket_proxy/test1.js:16:3)
    at Module._compile (module.js:571:32)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:488:32)
    at tryModuleLoad (module.js:447:12)
root@euve24935:/var/www/websocket_proxy# Error: listen EADDRINUSE :::8080
-bash: Error:: command not found