详解webpack+angular2开发环境搭建
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2023-02-24 11:28:22
刚搭建完一个webpack+angular2环境,由于angular及webpack官网上没有一个折中的搭建方案,所以只能摸索着搭建,中间遇到一些坑,遂总结记录下来,以供交...
刚搭建完一个webpack+angular2环境,由于angular及webpack官网上没有一个折中的搭建方案,所以只能摸索着搭建,中间遇到一些坑,遂总结记录下来,以供交流。
搭建完后的项目初步环境如下:
app ----app.component.ts ----app.module.ts ----main.ts index.html package.json tsconfig.json webpack.config.js
app.componnet.ts:组件文件。angular2应用是由组件构成,组件控制视图;
import { component } from '@angular/core'; @component({ selector: 'my-app', template: ` <h1>{{title}}</h1> <h2>my favorite hero is: {{myhero}}</h2> ` }) // 使用变量初始化方式 export class appcomponent { title = 'tour of heroes'; myhero = 'windstorm'; }
app.module.ts:应用跟模块。angular是模块化,拥有自己的模块系统,被称为angular模块或ngmodules();//缺少下述模块引入,会输出"uncaught reflect-metadata shim is required when using class decorators"的错误
import 'core-js/es6'; import 'core-js/es7/reflect'; import 'zone.js/dist/zone'; //引入ngmodule装饰器 import { ngmodule } from '@angular/core'; //引入浏览器模块 import { browsermodule } from '@angular/platform-browser'; //引入创建的component import { appcomponent } from './app.component'; @ngmodule({ imports: [ browsermodule ], declarations: [ appcomponent ], bootstrap: [ appcomponent ] }) export class appmodule { }
main.ts:用于引导跟模块启动应用;
import { platformbrowserdynamic } from '@angular/platform-browser-dynamic'; import { appmodule } from './app.module'; //引导跟模块启动应用 platformbrowserdynamic().bootstrapmodule(appmodule); index.html:angular应用宿主页面; <!doctype html> <html lang="zh-cn"> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width" /> <title>small胖的博客</title> </head> <body> <my-app></my-app> <script src="dist/bundle.js"></script> </body> </html>
package.json:一个标准化的npm说明文件,其中包含诸如当前应用的依赖包、自定义的脚本命令等,在cmd终端可用npm init自动创建该文件;
注意,此处如果引入的angular模块版本是2.4.x,则会报错“angular2 + jspm.io : reflect-metadata shim is required when using class decorators”,产生此坑的具体原因尚不清楚,希望有朋友一起交流。
{ "name": "blogcode", "version": "1.0.0", "description": "", "main": "webpack.config.js", "dependencies": { "ts-loader": "2.0.0", "@angular/common": "2.1.2", "@angular/compiler": "2.1.2", "@angular/core": "2.1.2", "@angular/platform-browser": "2.1.2", "@angular/platform-browser-dynamic":"2.1.2", "rxjs": "5.0.0-beta.12", "zone.js": "0.6.26", "core-js": "^2.4.1" }, "devdependencies": { "webpack": "^2.2.1", "@types/core-js": "^0.9.35", "typescript": "^2.1.5", "webpack": "^2.2.0", "webpack-dev-server": "^2.3.0" }, "scripts": { "test": "echo \"error: no test specified\" && exit 1" }, "repository": { "type": "git", "url": "https://git.coding.net/frankshin/xudengwei.git" }, "author": "", "license": "isc" }
tsconfig.json:用于定义typescript编译成es5的各项参数;
{ "compileroptions": { "module": "commonjs", "target": "es5", "moduleresolution": "node", "noimplicitany": true, "removecomments": true, "emitdecoratormetadata": true, "experimentaldecorators": true, "sourcemap": true, "declaration": false }, "buildonsave": false, "compileonsave": false, "exclude": [ "node_modules" ] }
webpack.config.js:一个标准化的commonjs文件,用于配置webpack编译打包的参数。
module.exports = { entry: "./app/main.ts", output: { path: __dirname + '/dist', filename: "bundle.js" }, module: { rules: [ { test: /\.tsx?$/, loader: 'ts-loader', exclude: /node_modules/, }, ] }, resolve: { extensions: [".tsx", ".ts", ".js"] } };
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。