如何使用package.json

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如何使用package.json

这篇文章主要介绍了如何使用package.json的相关知识，内容详细易懂，操作简单快捷，具有一定借鉴价值，相信大家阅读完这篇如何使用package.json文章都会有所收获，下面我们一起来看看吧。

使用 package.json

package.json 位于模块的目录下，用于定义包的属性。接下来让我们来看下 express 包的 package.json 文件，位于 node_modules/express/package.json 内容：

如何使用package.json

{"name":"express","description":"Fast,unopinionated,minimalistwebframework","version":"4.13.3","author":{"name":"TJHolowaychuk","email":"tj@vision-media.ca"},"contributors":[{"name":"AaronHeckmann","email":"aaron.heckmann+github@gmail.com"},{"name":"CiaranJessup","email":"ciaranj@gmail.com"},{"name":"DouglasChristopherWilson","email":"doug@somethingdoug.com"},{"name":"GuillermoRauch","email":"rauchg@gmail.com"},{"name":"JonathanOng","email":"me@jongleberry.com"},{"name":"RomanShtylman","email":"shtylman+expressjs@gmail.com"},{"name":"YoungJaeSim","email":"hanul@hanul.me"}],"license":"MIT","repository":{"type":"git","url":"git+https://github.com/strongloop/express.git"},"homepage":"http://expressjs.com/","keywords":["express","framework","sinatra","web","rest","restful","router","app","api"],"dependencies":{"accepts":"~1.2.12","array-flatten":"1.1.1","content-disposition":"0.5.0","content-type":"~1.0.1","cookie":"0.1.3","cookie-signature":"1.0.6","debug":"~2.2.0","depd":"~1.0.1","escape-html":"1.0.2","etag":"~1.7.0","finalhandler":"0.4.0","fresh":"0.3.0","merge-descriptors":"1.0.0","methods":"~1.1.1","on-finished":"~2.3.0","parseurl":"~1.3.0","path-to-regexp":"0.1.7","proxy-addr":"~1.0.8","qs":"4.0.0","range-parser":"~1.0.2","send":"0.13.0","serve-static":"~1.10.0","type-is":"~1.6.6","utils-merge":"1.0.0","vary":"~1.0.1"},"devDependencies":{"after":"0.8.1","ejs":"2.3.3","istanbul":"0.3.17","marked":"0.3.5","mocha":"2.2.5","should":"7.0.2","supertest":"1.0.1","body-parser":"~1.13.3","connect-redis":"~2.4.1","cookie-parser":"~1.3.5","cookie-session":"~1.2.0","express-session":"~1.11.3","jade":"~1.11.0","method-override":"~2.3.5","morgan":"~1.6.1","multiparty":"~4.1.2","vhost":"~3.0.1"},"engines":{"node":">=0.10.0"},"files":["LICENSE","History.md","Readme.md","index.js","lib/"],"scripts":{"test":"mocha--requiretest/support/env--reporterspec--bail--check-leakstest/test/acceptance/","test-ci":"istanbulcovernode_modules/mocha/bin/_mocha--reportlcovonly----requiretest/support/env--reporterspec--check-leakstest/test/acceptance/","test-cov":"istanbulcovernode_modules/mocha/bin/_mocha----requiretest/support/env--reporterdot--check-leakstest/test/acceptance/","test-tap":"mocha--requiretest/support/env--reportertap--check-leakstest/test/acceptance/"},"gitHead":"ef7ad681b245fba023843ce94f6bcb8e275bbb8e","bugs":{"url":"https://github.com/strongloop/express/issues"},"_id":"express@4.13.3","_shasum":"ddb2f1fb4502bf33598d2b032b037960ca6c80a3","_from":"express@*","_npmVersion":"1.4.28","_npmUser":{"name":"dougwilson","email":"doug@somethingdoug.com"},"maintainers":[{"name":"tjholowaychuk","email":"tj@vision-media.ca"},{"name":"jongleberry","email":"jonathanrichardong@gmail.com"},{"name":"dougwilson","email":"doug@somethingdoug.com"},{"name":"rfeng","email":"enjoyjava@gmail.com"},{"name":"aredridel","email":"aredridel@dinhe.net"},{"name":"strongloop","email":"callback@strongloop.com"},{"name":"defunctzombie","email":"shtylman@gmail.com"}],"dist":{"shasum":"ddb2f1fb4502bf33598d2b032b037960ca6c80a3","tarball":"http://registry.npmjs.org/express/-/express-4.13.3.tgz"},"directories":{},"_resolved":"https://registry.npmjs.org/express/-/express-4.13.3.tgz","readme":"ERROR:NoREADMEdatafound!"}

Package.json 属性说明

name- 包名。
version- 包的版本号。
description- 包的描述。
homepage- 包的官网 url 。
author- 包的作者姓名。
contributors- 包的其他贡献者姓名。
dependencies- 依赖包列表。如果依赖包没有安装，npm 会自动将依赖包安装在 node_module 目录下。
repository- 包代码存放的地方的类型，可以是 git 或 svn，git 可在 Github 上。
main- main 字段指定了程序的主入口文件，require('moduleName') 就会加载这个文件。这个字段的默认值是模块根目录下面的 index.js。
keywords- 关键字