Angular 7不会缩小html，js，css文件

Question

我在Angular 7中的项目遇到问题。

问题是编译后，我在Chrome控制台中没有缩小和缩小的文件。在production环境中运行项目后，我在控制台中收到了以下信息：

Time: 31790ms
chunk {main} main.js (main) 11.3 MB [initial] [rendered]
chunk {polyfills} polyfills.js (polyfills) 539 kB [initial] [rendered]
chunk {runtime} runtime.js (runtime) 6.04 kB [entry] [rendered]
chunk {scripts} scripts.js (scripts) 52.1 kB [entry] [rendered]
chunk {styles} styles.js (styles) 654 kB [initial] [rendered]

如您所见，chunk {main}具有11.3 MB以上的内存。

进入Chrome控制台后，我可以在“来源”中看到这些文件：

不幸的是，只有scripts.4d10c1b333ada0ab6568.js被完全缩小。其余文件未更改，仍未缩小和丑化。

我试图找到一种解决方案，但发现应该将其放在我的angular.json文件中：

这也无济于事。这是我的package.json文件：

有人可以帮助设置我的项目以创建丑化和缩小的文件吗？ 谢谢！

来自package.json的更新依赖项：

"dependencies": {
    "@angular/animations": "^7.2.1",
    "@angular/cdk": "^7.1.1",
    "@angular/common": "~7.1.0",
    "@angular/compiler": "~7.1.0",
    "@angular/core": "~7.1.0",
    "@angular/forms": "~7.1.0",
    "@angular/material": "^7.1.1",
    "@angular/platform-browser": "~7.1.0",
    "@angular/platform-browser-dynamic": "~7.1.0",
    "@angular/router": "~7.1.0",
    "@ngx-translate/core": "^11.0.1",
    "@ngx-translate/http-loader": "^4.0.0",
    "@nicky-lenaers/ngx-scroll-to": "^2.0.0",
    "@types/moment": "^2.13.0",
    "bindings": "^1.3.1",
    "classlist.js": "^1.1.20150312",
    "core-js": "^2.5.4",
    "dotenv": "^6.2.0",
    "fuzzy": "^0.1.3",
    "hammerjs": "^2.0.8",
    "highlight.js": "^9.13.1",
    "jquery": "^3.3.1",
    "lscache": "^1.3.0",
    "moment": "^2.24.0",
    "ngx-dropdown-list": "^1.1.1",
    "ngx-slick": "^0.2.1",
    "ngx-slick-carousel": "^0.4.4",
    "ngx-smart-modal": "^7.1.1",
    "ngx-stripe": "^6.0.0-rc.0",
    "ngx-toastr": "^9.1.1",
    "node": "^11.6.0",
    "node-sass": "^4.11.0",
    "reflect-metadata": "^0.1.12",
    "rollbar": "^2.5.1",
    "rxjs": "^6.3.3",
    "rxjs-compat": "^6.3.3",
    "slick-carousel": "^1.8.1",
    "tiny-slider": "^2.9.1",
    "ts-loader": "^5.3.1",
    "tslib": "^1.9.0",
    "web-animations-js": "^2.3.1",
    "zone.js": "^0.8.28"
  }

整个angular.json文件：

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "project-portal": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "prefix": "app",
      "schematics": {
        "@schematics/angular:component": {
          "styleext": "scss"
        }
      },
      "architect": {
        "build": {
          "builder": "@angular-builders/custom-webpack:browser",
          "options": {
            "customWebpackConfig": {
              "path": "./extra-webpack.config.js"
            },
            "outputPath": "dist/project-portal",
            "index": "src/index.html",
            "main": "src/main.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "src/tsconfig.app.json",
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ],
            "styles": [
              "src/app/styles/style.scss",
              "node_modules/ngx-toastr/toastr.css"
            ],
            "scripts": [
              "./node_modules/moment/min/moment.min.js"
            ]
          },
          "configurations": {
            "qa": {
              "fileReplacements": [
                {
                  "replace": "src/environments/environment.ts",
                  "with": "src/environments/environment.qa.ts"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true,
              "budgets": [
                {
                  "type": "initial",
                  "maximumWarning": "2mb",
                  "maximumError": "5mb"
                }
              ]
            },
            "production": {
              "fileReplacements": [
                {
                  "replace": "src/environments/environment.ts",
                  "with": "src/environments/environment.prod.ts"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true,
              "budgets": [
                {
                  "type": "initial",
                  "maximumWarning": "2mb",
                  "maximumError": "5mb"
                }
              ]
            }
          }
        },
        "serve": {
          "builder": "@angular-builders/dev-server:generic",
          "options": {
            "browserTarget": "project-portal:build"
          },
          "configurations": {
            "production": {
              "browserTarget": "project-portal:build:production"
            },
            "qa": {
              "browserTarget": "project-portal:build:qa"
            }
          }
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "project-portal:build"
          }
        },
        "test": {
          "builder": "@angular-devkit/build-angular:karma",
          "options": {
            "main": "src/test.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "src/tsconfig.spec.json",
            "karmaConfig": "src/karma.conf.js",
            "styles": [
              "src/styles.scss",
              "node_modules/ngx-toastr/toastr.css"
            ],
            "scripts": [
              "./node_modules/moment/min/moment.min.js"
            ],
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ]
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": [
              "src/tsconfig.app.json",
              "src/tsconfig.spec.json"
            ],
            "exclude": [
              "**/node_modules/**"
            ]
          }
        }
      }
    },
    "project-portal-e2e": {
      "root": "e2e/",
      "projectType": "application",
      "prefix": "",
      "architect": {
        "e2e": {
          "builder": "@angular-devkit/build-angular:protractor",
          "options": {
            "protractorConfig": "e2e/protractor.conf.js",
            "devServerTarget": "project-portal:serve"
          },
          "configurations": {
            "production": {
              "devServerTarget": "project-portal:serve:production"
            }
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": "e2e/tsconfig.e2e.json",
            "exclude": [
              "**/node_modules/**"
            ]
          }
        }
      }
    }
  },
  "defaultProject": "project-portal"
}

Answer 1

好吧，看来我知道了。 angular.json文件中的“ Builder”选项已更改。这是因为项目中使用了自定义Webpack。只是更改了：

"builder": "@angular-builders/custom-webpack:browser"

收件人：

"builder": "@angular-devkit/build-angular:browser"

解决了生产环境中所有文件最小化的问题。

Answer 2

如果您要从npm Angular CLI开始运行start，随后再运行build脚本，而不必在设置时直接使用别名ng，则可能需要确定并在node_modules文件夹中获得正确的路径。应该是以下内容（并添加其他脚本；我无法从您的屏幕截图中复制）：

build: "node node_modules/@angular/cli/bin/ng build --prod"

您也不需要--aot标记，因为"aot": true涵盖了该标记。作为一项单独的测试，您应该独立运行ng build --prod并在指定的输出路径上检查分发包："outputPath": "dist/project-portal"我怀疑您用于npm run build的npm命令没有正确编写并选择正确的命令/配置。未缩小包的原因很明确，因为无法从buildOptimizer

正确读取optimization，aot或angular.json标志