在部署时运行 ng build 后，角度路由不起作用

Question

不知道我在这里做错了什么，我对 Angular 相当陌生，并且在路由方面有些摸索。

我正在运行 Angular 12.2.0 并在本地主机上设置了路由。我现在只是在两个页面之间导航，看看它是如何工作的，它在本地工作得很好。

例如，在 localhost 上，我可以从根 http://localhost:4200/ 浏览到 http://localhost:4200/locations，效果很好。

 const routes: Routes = [
  {path: '', component: HomeComponent},
  {path: 'locations', component: LocationsComponent}
];

当我运行ng build构建项目时，它运行良好，我可以正常打开index.html

我不能做的是不再在路线之间导航

dist/angular-app/index.html当我单击要链接到的位置链接时启动构建，该dist/angular-app/index.html/locations链接是空白的，即使我将 URL 更改为dist/angular-app/locations也是空白的

有人指出我为什么这样做的正确方向吗？

非常感谢

附上我的 angular.json

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "angular-app": {
      "projectType": "application",
      "schematics": {
        "@schematics/angular:component": {
          "style": "scss"
        },
        "@schematics/angular:application": {
          "strict": true
        }
      },
      "root": "",
      "sourceRoot": "src",
      "prefix": "app",
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "dist/angular-app",
            "index": "src/index.html",
            "main": "src/main.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "tsconfig.app.json",
            "inlineStyleLanguage": "scss",
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ],
            "styles": [
              "src/styles.scss"
            ],
            "scripts": []
          },
          "configurations": {
            "production": {
              "budgets": [
                {
                  "type": "initial",
                  "maximumWarning": "500kb",
                  "maximumError": "1mb"
                },
                {
                  "type": "anyComponentStyle",
                  "maximumWarning": "2kb",
                  "maximumError": "4kb"
                }
              ],
              "fileReplacements": [
                {
                  "replace": "src/environments/environment.ts",
                  "with": "src/environments/environment.prod.ts"
                }
              ],
              "outputHashing": "all"
            },
            "development": {
              "buildOptimizer": false,
              "optimization": false,
              "vendorChunk": true,
              "extractLicenses": false,
              "sourceMap": true,
              "namedChunks": true
            }
          },
          "defaultConfiguration": "production"
        },
        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "configurations": {
            "production": {
              "browserTarget": "angular-app:build:production"
            },
            "development": {
              "browserTarget": "angular-app:build:development"
            }
          },
          "defaultConfiguration": "development"
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "angular-app: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",
            "inlineStyleLanguage": "scss",
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ],
            "styles": [
              "src/styles.scss"
            ],
            "scripts": []
          }
        }
      }
    }
  },
  "defaultProject": "angular-app"
}

Answer 1

最有可能的是因为您的网络服务器实际上正在尝试查找与该 URL 相对应的页面。然而，由于 Angular 应用程序是 SPA，元素会根据浏览器中的 url 动态注入到页面中，因此，在请求路由时，服务器会返回 404 HTTP 错误。这可以通过使用 Angular 中的 HashLocationStrategy 来解决，它将 # 附加到您的 URL 中，以便在部署应用程序时进行导航。

将其添加到提供程序部分的app.module.ts中。

providers: [{provide: LocationStrategy, useClass: HashLocationStrategy}]

进口：

import { HashLocationStrategy, LocationStrategy } from '@angular/common';

编辑：或者，如果您通过 Nginx 或 Apache 服务器为应用程序提供服务，则可以在配置文件中添加配置条目，以将没有匹配文件的所有请求重定向到 /index.html。有关更多信息，您可以查看https://angular.io/guide/deployment#server-configuration