app.listen(3000)与app是不一样的
Posted 专注前端开发
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前者是server代码如下
Server { domain: null, _events: { request: { [Function] domain: undefined, _events: [Object], _maxListeners: undefined, setMaxListeners: [Function: setMaxListeners], getMaxListeners: [Function: getMaxListeners], emit: [Function: emit], addListener: [Function: addListener], on: [Function: addListener], once: [Function: once], removeListener: [Function: removeListener], removeAllListeners: [Function: removeAllListeners], listeners: [Function: listeners], listenerCount: [Function: listenerCount], init: [Function: init], defaultConfiguration: [Function: defaultConfiguration], lazyrouter: [Function: lazyrouter], handle: [Function: handle], use: [Function: use], route: [Function: route], engine: [Function: engine], param: [Function: param], set: [Function: set], path: [Function: path], enabled: [Function: enabled], disabled: [Function: disabled], enable: [Function: enable], disable: [Function: disable], checkout: [Function], connect: [Function], copy: [Function], delete: [Function], get: [Function], head: [Function], lock: [Function], ‘m-search‘: [Function], merge: [Function], mkactivity: [Function], mkcalendar: [Function], mkcol: [Function], move: [Function], notify: [Function], options: [Function], patch: [Function], post: [Function], propfind: [Function], proppatch: [Function], purge: [Function], put: [Function], report: [Function], search: [Function], subscribe: [Function], trace: [Function], unlock: [Function], unsubscribe: [Function], all: [Function: all], del: [Function], render: [Function: render], listen: [Function: listen], request: [Object], response: [Object], cache: {}, engines: {}, settings: [Object], _eventsCount: 1, locals: [Object], mountpath: ‘/‘, _router: [Object] }, connection: [Function: connectionListener], clientError: [Function] }, _eventsCount: 3, _maxListeners: undefined, _connections: 0, _handle: TCP { _externalStream: {}, fd: 11, reading: false, owner: [Circular], onread: null, onconnection: [Function: onconnection], writeQueueSize: 0 }, _usingSlaves: false, _slaves: [], _unref: false, allowHalfOpen: true, pauseOnConnect: false, httpAllowHalfOpen: false, timeout: 120000, _pendingResponseData: 0, _connectionKey: ‘6::::3000‘ }
后者还没有实例化算是一个类：代码如下：
{ [Function] domain: undefined, _events: { mount: [Function: onmount] }, _maxListeners: undefined, setMaxListeners: [Function: setMaxListeners], getMaxListeners: [Function: getMaxListeners], emit: [Function: emit], addListener: [Function: addListener], on: [Function: addListener], once: [Function: once], removeListener: [Function: removeListener], removeAllListeners: [Function: removeAllListeners], listeners: [Function: listeners], listenerCount: [Function: listenerCount], init: [Function: init], defaultConfiguration: [Function: defaultConfiguration], lazyrouter: [Function: lazyrouter], handle: [Function: handle], use: [Function: use], route: [Function: route], engine: [Function: engine], param: [Function: param], set: [Function: set], path: [Function: path], enabled: [Function: enabled], disabled: [Function: disabled], enable: [Function: enable], disable: [Function: disable], checkout: [Function], connect: [Function], copy: [Function], delete: [Function], get: [Function], head: [Function], lock: [Function], ‘m-search‘: [Function], merge: [Function], mkactivity: [Function], mkcalendar: [Function], mkcol: [Function], move: [Function], notify: [Function], options: [Function], patch: [Function], post: [Function], propfind: [Function], proppatch: [Function], purge: [Function], put: [Function], report: [Function], search: [Function], subscribe: [Function], trace: [Function], unlock: [Function], unsubscribe: [Function], all: [Function: all], del: [Function], render: [Function: render], listen: [Function: listen], request: IncomingMessage { app: [Circular] }, response: ServerResponse { app: [Circular] }, cache: {}, engines: {}, settings: { ‘x-powered-by‘: true, etag: ‘weak‘, ‘etag fn‘: [Function: wetag], env: ‘development‘, ‘query parser‘: ‘extended‘, ‘query parser fn‘: [Function: parseExtendedQueryString], ‘subdomain offset‘: 2, ‘trust proxy‘: false, ‘trust proxy fn‘: [Function: trustNone], view: [Function: View], views: ‘/Users/Amanda/Downloads/aa/blog/views‘, ‘jsonp callback name‘: ‘callback‘ }, _eventsCount: 1, locals: { settings: { ‘x-powered-by‘: true, etag: ‘weak‘, ‘etag fn‘: [Function: wetag], env: ‘development‘, ‘query parser‘: ‘extended‘, ‘query parser fn‘: [Function: parseExtendedQueryString], ‘subdomain offset‘: 2, ‘trust proxy‘: false, ‘trust proxy fn‘: [Function: trustNone], view: [Function: View], views: ‘/Users/Amanda/Downloads/aa/blog/views‘, ‘jsonp callback name‘: ‘callback‘ } }, mountpath: ‘/‘, _router: { [Function: router] params: {}, _params: [], caseSensitive: false, mergeParams: undefined, strict: false, stack: [ [Object], [Object], [Object] ] } }
另外app.createServer()此方法已经被废除；属于旧代码；websocket要监听服务器，监听实例化得app，即第一种server；
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