我们需要不同的环境下，需要不同的参数，比如后端api接口什么的，使用Angular Cli，可以很容易的实现这点。在ionic3中，与angular中不一样的，还有cordova这一层壳。
假设我们需要3个环境:dev、uat、prod
web
-
IONIC_ENV: dev、prod，代表2种打包模式(简单说为aot与非aot)。 -
NODE_ENV: dev、uat、prod，代表3中不同的环境，webapp使用的参数。比如后端server_url不一样。cordova而言，比如一些key不一样。
区分这两种概念之后，就可以理解下面的组合了。
NODE_ENV与IONIC_ENV的组合:
- dev dev: environments: environment.dev.ts , 非aot方式打包
- dev prod: environments: environment.dev.ts , aot方式打包
- uat dev: environments: environment.uat.ts , 非aot方式打包
- uat prod: environments: environment.uat.ts , 非aot方式打包
- prod dev: environments: environment.prod.ts , 非aot方式打包
- prod prod: environments: environment.prod.ts , 非aot方式打包
第一步: 在src目录下新建environments文件夹
增加environment.dev.ts,environment.uat.ts,environment.prod.ts
// environment.dev.ts
export const ENV = {
"mode": "Dev",
"database": "data.db",
"server_url": "https://xxxx.com",
"cordova":{
"id":"io.ionic.starter.dev",
"version":"0.0.1",
"ios":{
"CodePushServerUrl": "dev",
"CodePushDeploymentKey":"1234567890"
},
"android":{
"CodePushServerUrl": "dev",
"CodePushDeploymentKey":"0987654321"
}
}
}第二步: 修改 tsconfig.json
{
"compilerOptions": {
...
"baseUrl": "./src",
"paths": {
"@env/environment": [ "environments/environment.prod"]
},
...
},第三步: 增加 config/webpack.config.js 文件
var chalk = require("chalk");
var fs = require('fs');
var path = require('path');
var useDefaultConfig = require('@ionic/app-scripts/config/webpack.config.js');
var env = process.env.NODE_ENV || 'dev';
var IONIC_ENV = process.env.IONIC_ENV
console.log('NODE_ENV:'+ env);
console.log('IONIC_ENV:'+IONIC_ENV);
if(env === 'dev'){
if(IONIC_ENV == 'dev'){
useDefaultConfig.dev.resolve.alias = {
"@env/environment": path.resolve(environmentPath('dev'))
};
};
if(IONIC_ENV == 'prod'){
useDefaultConfig.prod.resolve.alias = {
"@env/environment": path.resolve(environmentPath('dev'))
};
};
}
if(env === 'uat'){
if(IONIC_ENV == 'dev'){
useDefaultConfig.dev.resolve.alias = {
"@env/environment": path.resolve(environmentPath('uat'))
};
};
if(IONIC_ENV == 'prod'){
useDefaultConfig.prod.resolve.alias = {
"@env/environment": path.resolve(environmentPath('uat'))
};
};
}
if(env === 'prod'){
if(IONIC_ENV == 'dev'){
useDefaultConfig.dev.resolve.alias = {
"@env/environment": path.resolve(environmentPath('prod'))
};
};
if(IONIC_ENV == 'prod'){
useDefaultConfig.prod.resolve.alias = {
"@env/environment": path.resolve(environmentPath('prod'))
};
};
}
function environmentPath(env) {
var filePath = 'src/environments/environment.' + env + '.ts';
console.log("use env file:"+filePath);
if (!fs.existsSync(filePath)) {
console.log(chalk.red('\n' + filePath + ' does not exist!'));
} else {
return filePath;
}
}
module.exports = function () {
return useDefaultConfig;
};
第四步: 修改 package.json
增加config配置
....
"config": {
"ionic_webpack": "./config/webpack.config.js"
}
....使用方式
import { Component } from '@angular/core';
import {ENV} from '@env/environment'
@Component({
selector: 'page-page1',
templateUrl: 'page1.html'
})
export class Page1Page {
constructor() {
console.log(ENV.mode);
}
}cordova
定义一个config.tpl.xml,使用hooks:before_prepare,在执行cordova prepare之前替换config.xml
第一步: 下载 es6-template-strings
npm install es6-template-strings --save-dev
第二步: 创建config/hooks/config.tpl.xml
zoe
An awesome Ionic app(zoe).
CK
第三步: 创建config/hooks/before_prepare.js
#!/usr/bin/env node
var fs = require('fs');
var path = require('path');
var compile = require('es6-template-strings/compile');
var resolveToString = require('es6-template-strings/resolve-to-string');
var ROOT_DIR = path.resolve(__dirname, '../../')
var env = process.env.NODE_ENV || 'dev';
var envFile = 'src/environments/environment.' + env + '.ts';
var FILES = {
SRC: "config/hooks/config.tpl.xml",
DEST: "config.xml"
};
console.log('hooks-start: before_prepare','envFile:'+envFile);
var srcFileFull = path.join(ROOT_DIR, FILES.SRC);
var destFileFull = path.join(ROOT_DIR, FILES.DEST);
var configFileFull = path.join(ROOT_DIR, envFile);
var templateData = fs.readFileSync(srcFileFull, 'utf8');
var configData = fs.readFileSync(configFileFull, 'utf8').toString().split('ENV =')[1];
var config = JSON.parse(configData)['cordova'];
var compiled = compile(templateData);
var content = resolveToString(compiled, config);
fs.writeFileSync(destFileFull, content);
console.log('hooks-end: before_prepare');
第四步，修改现有config.xml
增加
zoe
An awesome Ionic app(zoe).
CK
命令
以uat为例:
"serve:uat": "NODE_ENV=uat ionic build"
"prepare:uat:prod": "NODE_ENV=uat ionic cordova prepare --prod",
"build:ios:uat:prod": "NODE_ENV=uat ionic cordova build ios --prod",
"build:android:uat:prod": "NODE_ENV=uat ionic cordova build android --prod"示例