Angular2环境搭建

发布时间：2020-12-17 09:31:07 所属栏目：安全来源：网络整理

导读：1.创建package.json文件 cd xhhAngularnpm init package.json: { "name": "xhhangular","version": "1.0.0","description": "","scripts": { "start": "webpack-dev-server --inline --hot --colors --progress","postinstall": "./node_modules/.bin/typing

1.创建package.json文件

cd xhhAngular

npm init

package.json:

{
  "name": "xhhangular","version": "1.0.0","description": "","scripts": {
    "start": "webpack-dev-server --inline --hot --colors --progress","postinstall": "./node_modules/.bin/typings install"
  },"author": "xhh","license": "ISC","dependencies": {
    "@angular/common": "~2.1.0","@angular/compiler": "~2.1.0","@angular/core": "~2.1.0","@angular/forms": "~2.1.0","@angular/http": "~2.1.0","@angular/platform-browser": "~2.1.0","@angular/platform-browser-dynamic": "~2.1.0","@angular/router": "~3.1.0","@angular/upgrade": "~2.1.0","angular-in-memory-web-api": "~0.1.5","bootstrap": "^3.3.7","core-js": "^2.4.1","reflect-metadata": "^0.1.8","rxjs": "5.0.0-beta.12","zone.js": "^0.6.25"
  },"devDependencies": {
    "html-webpack-plugin": "^2.28.0","path": "^0.12.7","ts-loader": "^0.8.2","typescript": "^2.0.3","typings": "^1.4.0","webpack": "^1.13.2","webpack-dev-server": "^1.16.1"
  }
}

2.创建tsconfig.json

{
  "compilerOptions": {
    "target": "es5","module": "commonjs","moduleResolution": "node","sourceMap": true,"emitDecoratorMetadata": true,"experimentalDecorators": true,"removeComments": true,"noImplicitAny": true,"declaration": false
  }
}

3.创建typings.json

{
  "globalDependencies": {
    "es6-shim": "registry:dt/es6-shim#0.31.2+20160602141504"
  }
}

现在运行 npm install 安装 package.json 里所有的依赖包：

npm install --registry=https://registry.npm.taobao.org/

4.创建app.module.ts

import 'zone.js/dist/zone';
import 'reflect-metadata';

import { NgModule }      from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';

import {AppComponent} from './app.component';

// components,directives and pipes — belong in the declarations array.
@NgModule({
  imports:      [ BrowserModule ],declarations: [ AppComponent ],bootstrap:    [ AppComponent ]
})

export class AppModule { }

5.创建app.component.ts

import { Component } from '@angular/core';

// 为 AppComponent 组件类添加注解
@Component({
  selector: 'my-app',template: '<h1>Hello {{title}}</h1><input type="text" #userRef (keyup)="onKeyup1(userRef.value)">',styles:['h1{color:red}']
})

export class AppComponent {
     title='World';
     onKeyup1(userInput:string){
        //这是typescript的写法，定义你的参数为string类型，并在调用的时候做检查
        this.title=userInput;
     }
}

6.创建main.ts

// 引入启动器
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
 
// 引入入口文件
import { AppModule } from './app.module';
 
// 启动应用
const platform = platformBrowserDynamic();
platform.bootstrapModule(AppModule);

7.创建主页面index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <title>Angular2 QuickStart</title>
</head>
<body>
    <!-- 对应 @Component({ selector: 'my-app',... }) -->
    <my-app></my-app>

    <!-- 编译打包后的文件 -->
    <script src="dist/bundle.js"></script>
</body>
</html>

8.创建webpack.config.js

var path = require('path');
var webpack = require('webpack');

module.exports = {
    entry: {
        main: './src/main.ts'
    },output: {
        path: path.resolve(__dirname,'dist'),publicPath: '/dist/',filename: 'bundle.js'
    },devtool: 'cheap-module-eval-source-map',module: {
        loaders: [
            {
                test: /.ts$/,loader: 'ts'
            }
        ]
    },// require 文件时可省略后缀 .js 和 .ts
    resolve: {
        extensions: ['','.js','.ts']
    },// 配置 webpack-dev-server
    devServer:{
        historyApiFallback: true,hot: true,inline: true,port: 3000 // 修改端口，一般默认是8080
    },plugins: [
        new webpack.optimize.UglifyJsPlugin({minimize: true})  
    ]
};

然后运行项目： npm start

访问localhost:3000即可。

附文件目录：

（编辑：李大同）

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