节点js +错误：收听EADDRINUSE +未处理的'错误'事件 [英] Node js +Error: listen EADDRINUSE + Unhandled 'error' event
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问题描述
我正在使用 nodeclipse 插件为eclipse运行我的节点js项目。以下js文件工作正常，但 h1 标记无法正常工作。我只能看到一个纯文本。我在运行时获取此异常。请帮助我。
I'm using nodeclipse plugin for eclipse to run my node js project.Following js file is working properly but h1 tag is not working .I can only see a plain text.plus I'm getting this exception in the runtime.please help me out.
javascript文件
var http = require('http');
http.createServer(function (request, response) {
response.writeHead(200, {'Content-Type': 'text/html'});
response.end('<html><body><h1>Home</h1> URL was: ' + request.url + '</body></html>');
}).listen(3000, 'localhost');
console.log('Server running at http://localhost:3000/');
例外
events.js:72
throw er; // Unhandled 'error' event
^
Error: listen EADDRINUSE
at errnoException (net.js:904:11)
at Server._listen2 (net.js:1042:14)
at listen (net.js:1064:10)
at net.js:1146:9
at dns.js:72:18
at process._tickCallback (node.js:415:13)
at Function.Module.runMain (module.js:499:11)
at startup (node.js:119:16)
at node.js:902:3
推荐答案
错误：listen EADDRINUSE
此错误表示您已经有另一个进程正在侦听端口3000.
This error means that you already have another process listening on port 3000.
C:\> netstat -a -b
(add -n to stop it trying to resolve hostnames, which will make it a lot faster)
Edit: +1 for Dane's recommendation for TCPView. Looks very useful!
-a Displays all connections and listening ports.
-b Displays the executable involved in creating each connection or listening port. In some cases well-known executables host multiple independent components, and in these cases the sequence of components involved in creating the connection or listening port is displayed. In this case the executable name is in [] at the bottom, on top is the component it called, and so forth until TCP/IP was reached. Note that this option can be time-consuming and will fail unless you have sufficient permissions. -n Displays addresses and port numbers in numerical form.
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