angular2.0 笔记 - 02

内容简介：简单创建一个demo项目上面的json是一个删除了部分内容的angular.json仅用于讲解使用，后面会给出完整json子项目名称的作用，可以用于ng 命令执行

angular2.0 笔记

1.angular-cli 之 angular.json 配置表参数说明

简单创建一个demo项目

ng new project-demo

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "project-demo": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "prefix": "app",
      "schematics": {},
      "architect": {
        "build": {},
        "serve": {},
        "extract-i18n": {},
        "test": {},
        "lint": {}
      }
    },
    "project-name-test": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "prefix": "app",
      "schematics": {},
      "architect": {
        "build": {},
        "serve": {},
        "extract-i18n": {},
        "test": {},
        "lint": {}
      }
    }
  },
  "defaultProject": "project-demo"
}

上面的json是一个删除了部分内容的angular.json仅用于讲解使用，后面会给出完整json

参数	作用
$schema	关联了JSON Schema在angular CLI 的执行config.json文件
version	项目版本
newProjectRoot	这个属性定义了CLI创建的新的内部应用和库放置的位置，默认值为'projects'
projects	这个属性，个人觉得有必要认真讲一下。此属性包含了本项目中所有的子项目的配置信息。稍后单独拿这个属性详细讲解其注意点。
defaultProject	属性表示该项目的名字

2.projects 下一级属性名是子项目的名称

子项目名称的作用，可以用于ng 命令执行

比如上面的json有一个子项目名字 project-name-test

如果想单独运行某个子项目时，可以执行

ng serve project-name-test

如果子项目不在projects内，执行 ng serve [project-name] 就会包一个错

The serve command requires to be run in an Angular project, but a project definition could not be found.

创建一个子项目，可以执行

ng generate application project-name

而且，每创建一个子项目，都会有一个[project-name]-e2e的子项目在projects里面

3.projects 子项目里面的属性说明

属性	作用
root	指定了子项目文件的根文件夹，可能是空值
sourceRoot	子项目源文件目录位置
projectType	子项目类型， `application` 或 `library`
prefix	创建子项目时，用这个属性来区分当前子项目是 `component` 、 `directive` 、 `lib` ,或其他,当cli创建时会确定
schematics	`Schematics packages` 配置(本人暂时还不知道其具体作用)
architect	此属性包含了项目的一些命令，比如 `build` / `serve` / `test` / `lint` 或者自定义命令 `extract-i18n`

以上部分属性内容参考自 Alfred的 angular.json参数详解

项目例子 json

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "project-demo": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "prefix": "app",
      "schematics": {},
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "dist/project-demo",
            "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/styles.css"
            ],
            "scripts": [],
            "es5BrowserSupport": true
          },
          "configurations": {
            "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-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "project-demo:build"
          },
          "configurations": {
            "production": {
              "browserTarget": "project-demo:build:production"
            }
          }
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "project-demo: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.css"
            ],
            "scripts": [],
            "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-demo-e2e": {
      "root": "e2e/",
      "projectType": "application",
      "prefix": "",
      "architect": {
        "e2e": {
          "builder": "@angular-devkit/build-angular:protractor",
          "options": {
            "protractorConfig": "e2e/protractor.conf.js",
            "devServerTarget": "project-demo:serve"
          },
          "configurations": {
            "production": {
              "devServerTarget": "project-demo:serve:production"
            }
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": "e2e/tsconfig.e2e.json",
            "exclude": [
              "**/node_modules/**"
            ]
          }
        }
      }
    },
    "project-demo-two": {
      "root": "projects/project-demo-two/",
      "sourceRoot": "projects/project-demo-two/src",
      "projectType": "application",
      "prefix": "app",
      "schematics": {},
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "dist/project-demo-two",
            "index": "projects/project-demo-two/src/index.html",
            "main": "projects/project-demo-two/src/main.ts",
            "polyfills": "projects/project-demo-two/src/polyfills.ts",
            "tsConfig": "projects/project-demo-two/tsconfig.app.json",
            "assets": [
              "projects/project-demo-two/src/favicon.ico",
              "projects/project-demo-two/src/assets"
            ],
            "styles": [
              "projects/project-demo-two/src/styles.css"
            ],
            "scripts": [],
            "es5BrowserSupport": true
          },
          "configurations": {
            "production": {
              "fileReplacements": [
                {
                  "replace": "projects/project-demo-two/src/environments/environment.ts",
                  "with": "projects/project-demo-two/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-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "project-demo-two:build"
          },
          "configurations": {
            "production": {
              "browserTarget": "project-demo-two:build:production"
            }
          }
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "project-demo-two:build"
          }
        },
        "test": {
          "builder": "@angular-devkit/build-angular:karma",
          "options": {
            "main": "projects/project-demo-two/src/test.ts",
            "polyfills": "projects/project-demo-two/src/polyfills.ts",
            "tsConfig": "projects/project-demo-two/tsconfig.spec.json",
            "karmaConfig": "projects/project-demo-two/karma.conf.js",
            "styles": [
              "projects/project-demo-two/src/styles.css"
            ],
            "scripts": [],
            "assets": [
              "projects/project-demo-two/src/favicon.ico",
              "projects/project-demo-two/src/assets"
            ]
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": [
              "projects/project-demo-two/tsconfig.app.json",
              "projects/project-demo-two/tsconfig.spec.json"
            ],
            "exclude": [
              "**/node_modules/**"
            ]
          }
        }
      }
    },
    "project-demo-two-e2e": {
      "root": "projects/project-demo-two-e2e/",
      "projectType": "application",
      "prefix": "",
      "architect": {
        "e2e": {
          "builder": "@angular-devkit/build-angular:protractor",
          "options": {
            "protractorConfig": "projects/project-demo-two-e2e/protractor.conf.js",
            "devServerTarget": "project-demo-two:serve"
          },
          "configurations": {
            "production": {
              "devServerTarget": "project-demo-two:serve:production"
            }
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": "projects/project-demo-two-e2e/tsconfig.e2e.json",
            "exclude": [
              "**/node_modules/**"
            ]
          }
        }
      }
    }
  },
  "defaultProject": "project-demo"
}

以上所述就是小编给大家介绍的《angular2.0 笔记 - 02》，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对码农网的支持！

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