手动包含 Jquery 文件时无法在 Angular 9 中找到 jquery 文件

Question

我尝试将 jquery 库文件添加到 assets 文件夹，并将该目录添加到 angular.json 中的脚本，但是当我运行 ng serve Angular告诉我 Jquery 库不存在，我正在使用 angular 版本 9。不知道问题出在哪里，请大家帮忙

这是错误信息：

An unhandled exception occurred: Script file assets/js/jquery-3.5.1.slim.min.js does not exist.

angular.json 文件:

{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"HorsesClubFrontend": {
  "projectType": "application",
  "schematics": {},
  "root": "",
  "sourceRoot": "src",
  "prefix": "app",
  "architect": {
    "build": {
      "builder": "@angular-devkit/build-angular:browser",
      "options": {
        "outputPath": "dist/HorsesClubFrontend",
        "index": "src/index.html",
        "main": "src/main.ts",
        "polyfills": "src/polyfills.ts",
        "tsConfig": "tsconfig.app.json",
        "aot": true,
        "assets": [
          "src/favicon.ico",
          "src/assets"
        ],
        "styles": [
          "src/styles.css",
          "assets/css/bootstrap.min.css"
        ],
        "scripts": [
          "assets/js/jquery-3.5.1.slim.min.js",
          "assets/js/bootstrap.min.js",
          "assets/js/popper.min.js"]
      },
      "configurations": {
        "production": {
          "fileReplacements": [
            {
              "replace": "src/environments/environment.ts",
              "with": "src/environments/environment.prod.ts"
            }
          ],
          "optimization": true,
          "outputHashing": "all",
          "sourceMap": false,
          "extractCss": true,
          "namedChunks": false,
          "extractLicenses": true,
          "vendorChunk": false,
          "buildOptimizer": true,
          "budgets": [
            {
              "type": "initial",
              "maximumWarning": "2mb",
              "maximumError": "5mb"
            },
            {
              "type": "anyComponentStyle",
              "maximumWarning": "6kb",
              "maximumError": "10kb"
            }
          ]
        }
      }
    },
    "serve": {
      "builder": "@angular-devkit/build-angular:dev-server",
      "options": {
        "browserTarget": "HorsesClubFrontend:build"
      },
      "configurations": {
        "production": {
          "browserTarget": "HorsesClubFrontend:build:production"
        }
      }
    },
    "extract-i18n": {
      "builder": "@angular-devkit/build-angular:extract-i18n",
      "options": {
        "browserTarget": "HorsesClubFrontend:build"
      }
    },
    "test": {
      "builder": "@angular-devkit/build-angular:karma",
      "options": {
        "main": "src/test.ts",
        "polyfills": "src/polyfills.ts",
        "tsConfig": "tsconfig.spec.json",
        "karmaConfig": "karma.conf.js",
        "assets": [
          "src/favicon.ico",
          "src/assets"
        ],
        "styles": [
          "src/styles.css"
        ],
        "scripts": []
      }
    },
    "lint": {
      "builder": "@angular-devkit/build-angular:tslint",
      "options": {
        "tsConfig": [
          "tsconfig.app.json",
          "tsconfig.spec.json",
          "e2e/tsconfig.json"
        ],
        "exclude": [
          "**/node_modules/**"
        ]
      }
    },
    "e2e": {
      "builder": "@angular-devkit/build-angular:protractor",
      "options": {
        "protractorConfig": "e2e/protractor.conf.js",
        "devServerTarget": "HorsesClubFrontend:serve"
      },
      "configurations": {
        "production": {
          "devServerTarget": "HorsesClubFrontend:serve:production"
        }
      }
    }
  }
}},
     "defaultProject": "HorsesClubFrontend"
}

资产文件夹：

Answer 1

要在 angular 中添加 jquery 必须按照以下步骤操作。

步骤1

Add jquery file in index.html file into the head tag

<script  src="https://code.jquery.com/jquery-3.5.1.slim.min.js"></script>

第2步

Also need to install two npm packages

npm i jquery@3.5.1 
npm i @types/jquery

第三步

Add jquery into angular.json file into the script array

"scripts":  [  
"node_modules/jquery/dist/jquery.js"
]

尝试以上步骤，希望对您有所帮助。

Answer 2

感谢您的回答，您的工作方式，但我找到了其他方法，直接安装 bootstrap npm install bootstrap --save 并将库包含到 angular.json:

        "styles": [
          "./node_modules/bootstrap/dist/css/bootstrap.css",
          "src/styles.css"
        ],
        "scripts": [
          "./node_modules/jquery/dist/jquery.js",
          "./node_modules/bootstrap/dist/js/bootstrap.js"
        ]

而且效果很好

手动包含 Jquery 文件时无法在 Angular 9 中找到 jquery 文件

Cannot find jquery file in Angular 9 when include the Jquery file manually

jquery

angular

angular9