- 使用环境变量
- node.js中可以读取环境变量,如上例中的process.env.mdsp_osbar_url
- 除了可以读取运行环境(如Cloud Foundry或操作系统)的环境变量,还可以读取node.js自身的环境变量
- node.js自身的环境变量分为全局级、用户级、terminal级
- 使用environment部署变量
- 每个Angular工程都有一个environments目录,其下有environment.ts和environment.prod.ts两个文件,分别存放了部署到不同环境时不同的配置,默认只有production: true
- src根目录下的.angular-cli.json文件是Angular所有CLI命令的配置
- .angular-cli.json中在apps节点下设置了入口main程序文件名称
- .angular-cli.json中在apps节点下设置了入口environment相关的配置
"apps": [
{
"root": "src",
"outDir": "dist",
"assets": [
"assets",
"favicon.ico",
{
"glob": "**/*",
"input": "./node_modules/sinint-application-core-spa/assets/icons/",
"output": "./src/assets/icons/"
}
],
"index": "index.html",
"main": "main.ts",
"polyfills": "polyfills.ts",
"test": "test.ts",
"tsconfig": "tsconfig.app.json",
"testTsconfig": "tsconfig.spec.json",
"prefix": "app",
"styles": [
"./assets/css/default.theme.css",
"styles.scss"
],
"scripts": [
"../node_modules/jquery/dist/jquery.min.js",
"../node_modules/jqueryui/jquery-ui.js"
],
"environmentSource": "environments/environment.ts",
"environments": {
"dev": "environments/environment.ts",
"prod": "environments/environment.prod.ts"
}
}
]
* src根目录下的这个**main.ts**文件,其中会在production值为true时才**enableProdMode()**,这个值会让编译结果不同,提高性能,关掉些功能?
import { enableProdMode } from '@angular/core';
import { environment } from './environments/environment';
if (environment.production) {
enableProdMode();
}