Angular 国际化服务于开发模式答案

【问题标题】：Angular internationalization serve in development modeAngular 国际化服务于开发模式
【发布时间】：2021-06-09 06:35:05
【问题描述】：

我想体验 angular i18n (https://angular.io/guide/i18n#build-from-the-command-line)。我可以使用一种语言环境为我的应用程序提供服务，这没关系。但我无法调试应用程序，因为这是捆绑的。

我正在使用 Angular 12

问题如何在普通开发人员模式下使用国际化 (i18n)（没有捆绑应用程序）？或者也许有一个选项可以在没有 i18n 的情况下进行配置，并且只在生产模式下使用 i18n 来构建应用程序？

angular.json

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "pomodoro-app": {
      "projectType": "application",
      "schematics": {
        "@schematics/angular:component": {
          "style": "scss"
        },
        "@schematics/angular:application": {
          "strict": true
        }
      },
      "root": "",
      "sourceRoot": "src",
      "prefix": "pom",

      "i18n": {
        "sourceLocale": "en-US",
        "locales": {
          "pl": {
            "translation": "src/locale/messages.pl.xlf"
          },
          "en": {
            "translation": "src/locale/messages.en.xlf"
          }
        }
      },
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "localize": true,
            "outputPath": "dist",
            "index": "src/index.html",
            "main": "src/main.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "tsconfig.app.json",
            "assets": ["src/favicon.ico", "src/assets"],
            "styles": ["src/styles/styles.scss"],
            "scripts": [],
            "aot": true,
            "optimization": {
              "fonts": false
            }
          },
          "configurations": {
            "production": {
              "optimization": true,
              "sourceMap": false,
              "namedChunks": false,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true,
              "budgets": [
                {...},
                {...}
              ],
              "fileReplacements": [...],
              "outputHashing": "all"
            },
            "development": {
              "buildOptimizer": false,
              "optimization": false,
              "vendorChunk": true,
              "extractLicenses": false,
              "sourceMap": true,
              "namedChunks": true
            },
            "en": {
              "localize": ["en"],
              "baseHref": "/en/"
            },
            "pl": {
              "localize": ["pl"],
              "baseHref": "/pl/"
            }
          },
          "defaultConfiguration": "production"
        },
        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "pomodoro-app:build"
          },
          "configurations": {
            "production": {
              "browserTarget": "pomodoro-app:build:production"
            },
            "en": {
              "browserTarget": "pomodoro-app:build:en"
            },
            "pl": {
              "browserTarget": "pomodoro-app:build:pl"
            }
          },
          "defaultConfiguration": "development"
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "pomodoro-app:build"
          }
        },
        "test": {...}
        }
      }
    }
  },
  "defaultProject": "pomodoro-app",
  "cli": {
    "defaultCollection": "@ngrx/schematics"
  }
}

附：我已经检查了文档和实时示例 (https://angular.io/generated/live-examples/i18n/stackblitz.html)，但我找不到可以帮助我解决这个问题的东西。

【问题讨论】：

标签： angular angular-i18n angular12 angular-localize

【解决方案1】：

我找到了解决方案，angular.json 配置中的 build 和 serve 部分有问题：

这里是差异

...
    "build": {
          "configurations": {
            "development-en": {
              "buildOptimizer": false,
              "optimization": false,
              "vendorChunk": false,
              "extractLicenses": false,
              "sourceMap": true,
              "localize": ["en"],
              "baseHref": "/en/"
            },
            "development-pl": {
              "buildOptimizer": false,
              "optimization": false,
              "vendorChunk": false,
              "extractLicenses": false,
              "sourceMap": true,
              "localize": ["pl"],
              "baseHref": "/pl/"
            },
           ... 
      },
...
    "serve": {
        ...
        "configurations": {
              "development-en": {
                  "buildOptimizer": false,
                  "optimization": false,
                  "vendorChunk": false,
                  "extractLicenses": false,
                  "sourceMap": true,
                  "localize": ["en"],
                  "baseHref": "/en/"
                },
               "development-pl": {
                  "buildOptimizer": false,
                  "optimization": false,
                  "vendorChunk": false,
                  "extractLicenses": false,
                  "sourceMap": true,
                  "localize": ["pl"],
                  "baseHref": "/pl/"
            },
        }

【讨论】：