{"id":4433,"date":"2015-11-19T00:54:22","date_gmt":"2015-11-18T16:54:22","guid":{"rendered":"https:\/\/sdeno.com\/?p=4433"},"modified":"2016-07-04T20:54:35","modified_gmt":"2016-07-04T12:54:35","slug":"express%e6%a1%86%e6%9e%b6%e7%9b%ae%e5%bd%95%e7%bb%93%e6%9e%84%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"https:\/\/sdeno.com\/?p=4433","title":{"rendered":"Express\u6846\u67b6\u76ee\u5f55\u7ed3\u6784\u4ecb\u7ecd"},"content":{"rendered":"<p>nodejs \u6846\u67b6<\/p>\n<p>\u5b89\u88c5\u6700\u65b0express\u6846\u67b6<\/p>\n<pre>npm install express<\/pre>\n<p>&nbsp;<\/p>\n<p>Express\u6846\u67b6\u5c31\u7c7b\u4f3c\u4e8ephp\u4e00\u6837\u6709\u81ea\u5df1\u7684\u4f17\u591a\u6846\u67b6\u4e00\u6837\uff0c\u90fd\u662f\u628a\u5e38\u7528\u7684\u7ec4\u5efa\u5c01\u88c5\u597d\u53ef\u4ee5\u91cd\u590d\u8c03\u7528\u3002<\/p>\n<p><strong>\u76ee\u5f55\u7ed3\u6784<\/strong><\/p>\n<p style=\"color: #4d4d4f;\">\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u8be6\u7ec6\u770b\u4e00\u4e0bExpress4\u9879\u76ee\u7684\u7ed3\u6784\u3001\u914d\u7f6e\u548c\u4f7f\u7528\u3002<\/p>\n<ul style=\"color: #4d4d4f;\">\n<li>bin, \u5b58\u653e\u542f\u52a8\u9879\u76ee\u7684\u811a\u672c\u6587\u4ef6<\/li>\n<li>node_modules, \u5b58\u653e\u6240\u6709\u7684\u9879\u76ee\u4f9d\u8d56\u5e93\u3002<\/li>\n<li>public\uff0c\u9759\u6001\u6587\u4ef6(css,js,img)<\/li>\n<li>routes\uff0c\u8def\u7531\u6587\u4ef6(MVC\u4e2d\u7684C,controller)<\/li>\n<li>views\uff0c\u9875\u9762\u6587\u4ef6(Ejs\u6a21\u677f)<\/li>\n<li>package.json\uff0c\u9879\u76ee\u4f9d\u8d56\u914d\u7f6e\u53ca\u5f00\u53d1\u8005\u4fe1\u606f<\/li>\n<li>app.js\uff0c\u5e94\u7528\u6838\u5fc3\u914d\u7f6e\u6587\u4ef6<\/li>\n<\/ul>\n<a href=\"https:\/\/sdeno.com\/wp-content\/uploads\/2015\/11\/express_2.png\"><figure class=\"mdx-lazyload-container\" style=\"max-width:388px\"><div style=\"padding-top:156.18556701031%\"><\/div><div class=\"mdx-img-loading-sp mdui-valign\"><div><div class=\"mdui-spinner\"><\/div><\/div><\/div><img width=\"388\" height=\"606\" class=\"alignnone size-full wp-image-4434 lazyload\" title=\"express_2\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/sdeno.com\/wp-content\/uploads\/2015\/11\/express_2.png\" alt=\"express_2\" data-srcset=\"https:\/\/sdeno.com\/wp-content\/uploads\/2015\/11\/express_2.png 388w, https:\/\/sdeno.com\/wp-content\/uploads\/2015\/11\/express_2-192x300.png 192w\" sizes=\"auto, (max-width: 388px) 100vw, 388px\"><\/figure><\/a>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>package.json\u9879\u76ee\u914d\u7f6e<\/strong><\/p>\n<p>package.json\u7528\u4e8e\u9879\u76ee\u4f9d\u8d56\u914d\u7f6e\u53ca\u5f00\u53d1\u8005\u4fe1\u606f\uff0cscripts\u5c5e\u6027\u662f\u7528\u4e8e\u5b9a\u4e49\u64cd\u4f5c\u547d\u4ee4\u7684\uff0c\u53ef\u4ee5\u975e\u5e38\u65b9\u4fbf\u7684\u589e\u52a0\u542f\u52a8\u547d\u4ee4\uff0c\u6bd4\u5982\u9ed8\u8ba4\u7684start\uff0c\u7528npm start\u4ee3\u8868\u6267\u884cnode .\/bin\/www\u547d\u4ee4\u3002<\/p>\n<p>\u67e5\u770bpackage.json\u6587\u4ef6\u3002\u53bb\u770b\u4e4b\u524d\u7684\u300a<a href=\"https:\/\/sdeno.com\/?p=4287\" target=\"_blank\">grunt\u5165\u95e8\u6559\u7a0b<\/a>\u300b\u4f60\u5c31\u4e0d\u4f1a\u89c9\u5f97\u964c\u751f\u4e86\u4e0d\u7136\u5b66\u8d77\u6765\u5403\u529b<\/p>\n<pre>{\r\n \"name\": \"express4-demo\",\r\n \"version\": \"0.0.0\",\r\n \"private\": true,\r\n \"scripts\": {\r\n \"start\": \"node .\/bin\/www\"\r\n },\r\n \"dependencies\": {\r\n \"body-parser\": \"~1.10.2\",\r\n \"cookie-parser\": \"~1.3.3\",\r\n \"debug\": \"~2.1.1\",\r\n \"ejs\": \"~2.2.3\",\r\n \"express\": \"~4.11.1\",\r\n \"morgan\": \"~1.5.1\",\r\n \"serve-favicon\": \"~2.2.0\"\r\n }\r\n}<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>app.js\u6838\u5fc3\u6587\u4ef6<\/strong><\/p>\n<p>\u4eceExpress3.x\u5347\u7ea7\u5230Express4.x\uff0c\u4e3b\u8981\u7684\u53d8\u5316\u5c31\u5728app.js\u6587\u4ef6\u4e2d\u3002\u67e5\u770bapp.js\u6587\u4ef6\uff0c\u6211\u5df2\u7ecf\u589e\u52a0\u6ce8\u91ca\u8bf4\u660e\u3002<\/p>\n<pre style=\"color: #4d4d4f;\"><code>\/\/ \u52a0\u8f7d\u4f9d\u8d56\u5e93\uff0c\u539f\u6765\u8fd9\u4e2a\u7c7b\u5e93\u90fd\u5c01\u88c5\u5728connect\u4e2d\uff0c\u73b0\u5728\u9700\u5730\u6ce8\u5355\u72ec\u52a0\u8f7d\r\nvar express = require('express'); \r\nvar path = require('path');\r\nvar favicon = require('serve-favicon');\r\nvar logger = require('morgan');\r\nvar cookieParser = require('cookie-parser');\r\nvar bodyParser = require('body-parser');\r\n\r\n\/\/ \u52a0\u8f7d\u8def\u7531\u63a7\u5236\r\nvar routes = require('.\/routes\/index');\r\n\/\/var users = require('.\/routes\/users');\r\n\r\n\/\/ \u521b\u5efa\u9879\u76ee\u5b9e\u4f8b\r\nvar app = express();\r\n\r\n\/\/ \u5b9a\u4e49EJS\u6a21\u677f\u5f15\u64ce\u548c\u6a21\u677f\u6587\u4ef6\u4f4d\u7f6e\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528jade\u6216\u5176\u4ed6\u6a21\u578b\u5f15\u64ce\r\napp.set('views', path.join(__dirname, 'views'));\r\napp.set('view engine', 'ejs');\r\n\r\n\/\/ \u5b9a\u4e49icon\u56fe\u6807\r\napp.use(favicon(__dirname + '\/public\/favicon.ico'));\r\n\/\/ \u5b9a\u4e49\u65e5\u5fd7\u548c\u8f93\u51fa\u7ea7\u522b\r\napp.use(logger('dev'));\r\n\/\/ \u5b9a\u4e49\u6570\u636e\u89e3\u6790\u5668\r\napp.use(bodyParser.json());\r\napp.use(bodyParser.urlencoded({ extended: false }));\r\n\/\/ \u5b9a\u4e49cookie\u89e3\u6790\u5668\r\napp.use(cookieParser());\r\n\/\/ \u5b9a\u4e49\u9759\u6001\u6587\u4ef6\u76ee\u5f55\r\napp.use(express.static(path.join(__dirname, 'public')));\r\n\r\n\/\/ \u5339\u914d\u8def\u5f84\u548c\u8def\u7531\r\napp.use('\/', routes);\r\n\/\/app.use('\/users', users);\r\n\r\n\/\/ 404\u9519\u8bef\u5904\u7406\r\napp.use(function(req, res, next) {\r\n    var err = new Error('Not Found');\r\n    err.status = 404;\r\n    next(err);\r\n});\r\n\r\n\/\/ \u5f00\u53d1\u73af\u5883\uff0c500\u9519\u8bef\u5904\u7406\u548c\u9519\u8bef\u5806\u6808\u8ddf\u8e2a\r\nif (app.get('env') === 'development') {\r\n    app.use(function(err, req, res, next) {\r\n        res.status(err.status || 500);\r\n        res.render('error', {\r\n            message: err.message,\r\n            error: err\r\n        });\r\n    });\r\n}\r\n\r\n\/\/ \u751f\u4ea7\u73af\u5883\uff0c500\u9519\u8bef\u5904\u7406\r\napp.use(function(err, req, res, next) {\r\n    res.status(err.status || 500);\r\n    res.render('error', {\r\n        message: err.message,\r\n        error: {}\r\n    });\r\n});\r\n\r\n\/\/ \u8f93\u51fa\u6a21\u578bapp\r\nmodule.exports = app;<\/code><\/pre>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>\u53e6\u5916\uff0c\u539f\u6765\u7528\u4e8e\u9879\u76ee\u542f\u52a8\u4ee3\u7801\u4e5f\u88ab\u79fb\u5230.\/bin\/www\u7684\u6587\u4ef6\uff0cwww\u6587\u4ef6\u4e5f\u662f\u4e00\u4e2anode\u7684\u811a\u672c\uff0c\u7528\u4e8e\u5206\u79bb\u914d\u7f6e\u548c\u542f\u52a8\u7a0b\u5e8f\u3002<\/p>\n<p>\u67e5\u770b.\/bin\/www\u6587\u4ef6\u3002<\/p>\n<pre style=\"color: #4d4d4f;\"><code>#!\/usr\/bin\/env node   \r\n\r\n\/**\r\n * \u4f9d\u8d56\u52a0\u8f7d\r\n *\/\r\nvar app = require('..\/app');\r\nvar debug = require('debug')('nodejs-demo:server');\r\nvar http = require('http');\r\n\r\n\/**\r\n * \u5b9a\u4e49\u542f\u52a8\u7aef\u53e3\r\n *\/\r\nvar port = normalizePort(process.env.PORT || '3000');\r\napp.set('port', port);\r\n\r\n\/**\r\n * \u521b\u5efaHTTP\u670d\u52a1\u5668\u5b9e\u4f8b\r\n *\/\r\nvar server = http.createServer(app);\r\n\r\n\/**\r\n * \u542f\u52a8\u7f51\u7edc\u670d\u52a1\u76d1\u542c\u7aef\u53e3\r\n *\/\r\nserver.listen(port);\r\nserver.on('error', onError);\r\nserver.on('listening', onListening);\r\n\r\n\/**\r\n * \u7aef\u53e3\u6807\u51c6\u5316\u51fd\u6570\r\n *\/\r\nfunction normalizePort(val) {\r\n  var port = parseInt(val, 10);\r\n  if (isNaN(port)) {\r\n    return val;\r\n  }\r\n  if (port &gt;= 0) {\r\n    return port;\r\n  }\r\n  return false;\r\n}\r\n\r\n\/**\r\n * HTTP\u5f02\u5e38\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\r\n *\/\r\nfunction onError(error) {\r\n  if (error.syscall !== 'listen') {\r\n    throw error;\r\n  }\r\n\r\n  var bind = typeof port === 'string'\r\n    ? 'Pipe ' + port\r\n    : 'Port ' + port\r\n\r\n  \/\/ handle specific listen errors with friendly messages\r\n  switch (error.code) {\r\n    case 'EACCES':\r\n      console.error(bind + ' requires elevated privileges');\r\n      process.exit(1);\r\n      break;\r\n    case 'EADDRINUSE':\r\n      console.error(bind + ' is already in use');\r\n      process.exit(1);\r\n      break;\r\n    default:\r\n      throw error;\r\n  }\r\n}\r\n\r\n\/**\r\n * \u4e8b\u4ef6\u7ed1\u5b9a\u51fd\u6570\r\n *\/\r\nfunction onListening() {\r\n  var addr = server.address();\r\n  var bind = typeof addr === 'string'\r\n    ? 'pipe ' + addr\r\n    : 'port ' + addr.port;\r\n  debug('Listening on ' + bind);\r\n}<\/code><\/pre>\n<p>&nbsp;<\/p>\n<p><strong>\u8def\u7531\u529f\u80fd<\/strong><\/p>\n<p>\u8def\u7531\u529f\u80fd\uff0c\u662fExpress4\u4ee5\u540e\u5168\u9762\u6539\u7248\u7684\u529f\u80fd\u3002\u5728\u5e94\u7528\u7a0b\u5e8f\u52a0\u8f7d\u9690\u542b\u8def\u7531\u4e2d\u95f4\u4ef6\uff0c\u4e0d\u7528\u62c5\u5fc3\u5728\u4e2d\u95f4\u4ef6\u88ab\u88c5\u8f7d\u76f8\u5bf9\u4e8e\u8def\u7531\u5668\u4e2d\u95f4\u4ef6\u7684\u987a\u5e8f\u3002\u5b9a\u4e49\u8def\u7531\u7684\u65b9\u5f0f\u662f\u4e0d\u53d8\u7684\uff0c\u8def\u7531\u7cfb\u7edf\u4e2d\u589e\u52a02\u4e2a\u65b0\u7684\u529f\u80fd\u3002<\/p>\n<p>app.route()\u51fd\u6570\uff0c\u521b\u5efa\u53ef\u94fe\u63a5\u7684\u9014\u5f84\u5904\u7406\u7a0b\u5e8f\u7684\u8def\u7531\u8def\u5f84\u3002<br \/>\nexpress.Router\u7c7b\uff0c\u521b\u5efa\u6a21\u5757\u5316\u5b89\u88c5\u8def\u5f84\u7684\u5904\u7406\u7a0b\u5e8f\u3002<br \/>\napp.route\u65b9\u6cd5\u4f1a\u8fd4\u56de\u4e00\u4e2aRoute\u5b9e\u4f8b\uff0c\u5b83\u53ef\u4ee5\u7ee7\u7eed\u4f7f\u7528\u6240\u6709\u7684HTTP\u65b9\u6cd5\uff0c\u5305\u62ecget,post,all,put,delete,head\u7b49\u3002<\/p>\n<pre style=\"color: #4d4d4f;\"><code>app.route('\/users')\r\n  .get(function(req, res, next) {})\r\n  .post(function(req, res, next) {})<\/code><\/pre>\n<p>express.Router\u7c7b\uff0c\u5219\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u597d\u7684\u7ec4\u7ec7\u4ee3\u7801\u7ed3\u6784\u3002\u5728app.js\u6587\u4ef6\u4e2d\uff0c\u5b9a\u4e49\u4e86app.use(\u2018\/\u2019, routes); routes\u662f\u6307\u5411\u4e86routes\u76ee\u5f55\u4e0b\u7684index.js\u6587\u4ef6\uff0c.\/routes\/index.js\u6587\u4ef6\u4e2d\uff0cexpress.Router\u88ab\u5b9a\u4e49\u4f7f\u7528\uff0c\u8def\u5f84\/*\u5904\u7406\u90fd\u4f1a\u7531routes\/index.js\u6587\u4ef6\u91cc\u7684Router\u6765\u5904\u7406\u3002\u5982\u679c\u6211\u4eec\u8981\u7ba1\u7406\u4e0d\u540c\u7684\u8def\u5f84\uff0c\u90a3\u4e48\u53ef\u4ee5\u76f4\u63a5\u914d\u7f6e\u4e3a\u591a\u4e2a\u4e0d\u540c\u7684Router\u3002<\/p>\n<pre style=\"color: #4d4d4f;\"><code>app.use('\/user', require('.\/routes\/user').user);\r\napp.use('\/admin', require('.\/routes\/admin').admin);\r\napp.use('\/', require('.\/routes'));<\/code><\/pre>\n<p>Express\u6846\u67b6 APl\uff1a<a href=\"http:\/\/expressjs.jser.us\/api\" target=\"_blank\">http:\/\/expressjs.jser.us\/api<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>nodejs \u6846\u67b6 \u5b89\u88c5\u6700\u65b0express\u6846\u67b6 npm install express &nbsp; Expr [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35,16],"tags":[],"class_list":["post-4433","post","type-post","status-publish","format-standard","hentry","category-nodejs","category-16"],"_links":{"self":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts\/4433","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4433"}],"version-history":[{"count":0,"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts\/4433\/revisions"}],"wp:attachment":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4433"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4433"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}