鸿蒙应用如何打开发环境，仿真环境和生产环境的包

背景： 一般一个公司的项目，先是在开发环境上联调测试好之后，会在仿真模拟环境上再进行验证，最后是联调通过后在生产环境上打包发布。所以，APP开发需要同时打出三种环境的包：开发环境包，仿真环境包，测试环境包。鸿蒙APP开发也不例外

1.分层级配置接口地址，从工程级目录build-profile.json5中读取，类似于安卓的BuildConfig文件

• APP中接口请求通用逻辑，比如接口前缀，环境声明，是否为调试模式，是否打印网络请求日志等

import BuildProfile from 'BuildProfile'

enum EnvType {
  PRODUCT,FANGZHEN,DEBUG
}
export class UrlCommonConfig{

  protected static envType:EnvType = EnvType.PRODUCT
  protected  static URL_API_HOME:string = BuildProfile.URL_API_HOME


  protected static getHomeUrl():string{
    return UrlCommonConfig.URL_API_HOME;
  }


}

• 子模块继承UrlCommonConfig，申明属于自身模块的Url配置

import BuildProfile from 'BuildProfile'
import { UrlCommonConfig } from '../common/UrlCommonConfig';

enum EnvType {
  PRODUCT,FANGZHEN,DEBUG
}
export class UrlNewsConfig extends UrlCommonConfig{

  protected  static NEWS_DETAIL:string = BuildProfile.NEWS_DETAIL
  protected  static NEW_RECOMMEND:string = `${this.getHomeUrl()}/getRecommend`

  protected static getNewsDetailUrl():string{
    return UrlNewsConfig.NEWS_DETAIL;
  }
  protected static getNewsRecommendUrl():string{
    return UrlNewsConfig.NEW_RECOMMEND;
  }
}

2.修改配置文件，配置不同环境的产物

• 修改entry模块中配置build-profile.json5

"targets": [
  {
    "name": "default"
  },
  {
    "name": "ohosTest",
  },
  {
    "name": "fangzhen",
  },
  {
    "name": "debug",
  }
]

• 修改工程级目录build-profile.json5

"products": [
    {
      "name": "default",
      "signingConfig": "default",
      "compatibleSdkVersion": "5.0.0(12)",
      "runtimeOS": "HarmonyOS",
      "buildOption": {
        "arkOptions": {
          "buildProfileFields": {
            "NEWS_DETAIL": 'https://www.xxx.com:8888/news/#/flashnew?type=8',
            "URL_API_HOME": 'https://www.xxx.com:8888'
          }
        }
      }
    },
    {
      "name": "fangzhen",
      "signingConfig": "default",
      "compatibleSdkVersion": "5.0.0(12)",
      "runtimeOS": "HarmonyOS",
      "buildOption": {
        "arkOptions": {
          "buildProfileFields": {
            "NEWS_DETAIL": 'https://101.20.30:8888/news/#/flashnew?type=8',
            "URL_API_HOME": 'https://101.20.30:2022'
          }
        }
      }
    },
    {
      "name": "debug",
      "signingConfig": "default",
      "compatibleSdkVersion": "5.0.0(12)",
      "runtimeOS": "HarmonyOS",
      "buildOption": {
        "arkOptions": {
          "buildProfileFields": {
            "NEWS_DETAIL": 'https://192.168.30:8888/news/#/flashnew?type=8',
            "URL_API_HOME": 'https://192.168.30.com:8888'
          }
        }
      }
    }
  ],
  "buildModeSet": [
    {
      "name": "debug",
    },
    {
      "name": "release"
    }
  ]
},
"modules": [
  {
    "name": "entry",
    "srcPath": "./entry",
    "targets": [
      {
        "name": "default",
        "applyToProducts": [
          "default"
        ]
      },
      {
        "name": "fangzhen",
        "applyToProducts": [
          "fangzhen"
        ]
      },
      {
        "name": "debug",
        "applyToProducts": [
          "debug"
        ]
      }
    ]
  }
]

3.打包的时候需要选择对应的环境，apply后，点击三角形运行，就可以生成对应的包

*Build Mode/module Target可以选择release 或debug