Node.js开发者有福了！Express 3.0发布

版权声明：本文为博主chszs的原创文章，未经博主允许不得转载。 https://blog.csdn.net/chszs/article/details/8114422

作者：chszs，转载需注明。

作者博客主页：http://blog.csdn.net/chszs

Express 3.0是一个维护版本，针对2.x版修复了很多问题，并加入了很多新功能。

在使用Express框架时，要记住，Express框架是帮助开发者快速实现HTTP通信相关的功能，而不是成为像Rails那样功能强大、全面的框架。

Connect 2.x

Changes introduced by Connect 2.x:

added err.status support to Connect’s default end-point

added session() “proxy” setting to trust “X-Forwarded-Proto”

added cookieSession() middleware

added compress() middleware for gzipped responses

added multipart() middleware

added json() middleware

added urlencoded() middleware

added limit option to the three above middleware

added defer option to multipart() to listen on formidable’s events

added debug() instrumentation to aid in debugging

changed basicAuth()’s req.remoteUser to req.user

changed session() to only set-cookie on modification (hashed session json)

changed bodyParser() to be an aggregate of json(), multipart() and urlencoded()

moved many cookie-related utils into npm

moved static()’s logic into a separate npm module named “send”

increase perf ~%20 by memoizing url parsing

removed router() middleware

fixed default encoding for logger(), now “utf8” instead of “ascii”

fixed mount-path case-sensitivity

Connect docs are available at http://www.senchalabs.org/connect/, and will eventually be mirrored on expressjs.com as well for convenience, along with usage guides.

作者：chszs，转载需注明。作者博客主页：http://blog.csdn.net/chszs

Express 3.x

Changes introduced by Express 3.x:

added several new examples in ./examples

added unit testing for the examples (most of them at least)

added res.jsonp() to explicitly opt-in to JSONP support

added ETags and conditional-GET handling to res.send() responses

added “jsonp callback name” setting

added support for status code as first or second arg to res.send() and res.redirect()

added req.range(size) to parse Range header fields

added req.auth for basic auth

added res.links(obj) to set response the Link header field for pagination

added res.format(obj) for content-negotiation

added req.fresh for conditional-GETs

added req.stale for conditional-GETs

added mount-point relative redirection support to res.redirect()

added req.ip for the remote address (supporting reverse proxies)

added req.ips for remote address(es) (supporting reverse proxies)

added [] support in jsonp callback

added app.get(name) to compliment app.set(name, val)

added app.engine() to register template engines (replaces app.register())

added req.subdomains to return an array of subdomains

added req.protocol to return the request protocol string (“http” or “https”)

added req.secure to assert that req.protocol is “https”

added req.path to return the parsed url’s pathname

added req.host to return hostname (Host void of port)

added debug() instrumentation to aid debugging

added req.accepts()

added req.acceptsLanguage()

added req.acceptsCharset()

added req.accepted

added req.acceptedLanguages

added req.acceptedCharsets

added “json replacer” setting to manipulate json responses (remove private keys etc)

added “json spaces” setting to compress or expand json as you like (defaults to 2 in dev)

added express.application prototype

added express.request prototype

added express.response prototype

added app.render() for app-level templates

added res.type() to replace old res.contentType()

added { signed: true } option to res.cookie()

added async signature to res.render(), engines in consolidate.js work OOTB

removed partial()

removed express-level layout support (engines provide similar)

renamed “case sensitive routes” to “case sensitive routing”

removed res.signedCookie()

removed “root” setting

removed res.redirect('home') support

removed req.notify()

removed app.register()

removed app.redirect()

removed app.is()

removed app.helpers()

removed app.dynamicHelpers()

Head over to the New Features in 3.x wiki page for a more comprehensive list of additions, or to 3.x migration to help you upgrade if you wish to do so.