.net 核心和 Angular 7 项目

Question

我对 .net core 和 angular 项目非常陌生。我获得了使用 .net core 和 angular 从表中创建添加和删除行的应用程序。我在 Visual Studio 应用程序 2019 中创建了 Angular 项目。我没有使用 Visual Studio 代码编辑器来创建 Angular 项目。我在创建控制器后对其进行了测试，它正在返回数据。当我运行应用程序时，我收到一条错误消息

 Cannot GET /

我的项目结构是这样的 C:\ITProjects\ProjectsDetails。我的角度项目在于 c:\ITProjects\projectDetails\ClientApp

我编译了整个应用程序并通过单击 F5 运行应用程序并得到上述错误。我是否需要运行命令 ng serve 才能运行 Angular 项目，或者我可以通过单击 F5 来运行整个 Visual Studio 项目吗？ 下面是我的 package.json 文件

{
  "name": "ProjectDetails",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve --extract-css",
    "build": "ng build --extract-css",
    "build:ssr": "npm run build -- --app=ssr --output-hashing=media",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^5.2.0",
    "@angular/common": "^5.2.0",
    "@angular/compiler": "^5.2.0",
    "@angular/core": "^5.2.0",
    "@angular/forms": "^5.2.0",
    "@angular/http": "^5.2.0",
    "@angular/platform-browser": "^5.2.0",
    "@angular/platform-browser-dynamic": "^5.2.0",
    "@angular/platform-server": "^5.2.0",
    "@angular/router": "^5.2.0",
    "@nguniversal/module-map-ngfactory-loader": "^5.0.0-beta.5",
    "aspnet-prerendering": "^3.0.1",
    "bootstrap": "^3.4.1",
    "core-js": "^2.4.1",
    "rxjs": "^5.5.6",
    "zone.js": "^0.8.19"
  },
  "devDependencies": {
    "@angular/cli": "~1.7.0",
    "@angular/compiler-cli": "^5.2.0",
    "@angular/language-service": "^5.2.0",
    "@types/jasmine": "~2.8.3",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "^4.0.1",
    "jasmine-core": "~2.8.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~2.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~4.1.0",
    "tslint": "~5.9.1",
    "typescript": "~2.5.3"
  },
  "optionalDependencies": {
    "node-sass": "^4.9.0"
  }
}

任何帮助将不胜感激。

Answer 1

您应该在MSBuild 中看到类似的内容：

<Target Name="DebugRunWebpack" BeforeTargets="Build" Condition=" '$(Configuration)' == 'Debug' And !Exists('wwwroot\dist') ">
    <!-- Ensure Node.js is installed -->
    <Exec Command="node --version" ContinueOnError="true">
      <Output TaskParameter="ExitCode" PropertyName="ErrorCode" />
    </Exec>
    <Error Condition="'$(ErrorCode)' != '0'" Text="Node.js is required to build and run this project. To continue, please install Node.js from https://nodejs.org/, and then restart your command prompt or IDE." />

    <!-- In development, the dist files won't exist on the first run or when cloning to
         a different machine, so rebuild them if not already present. -->
    <Message Importance="high" Text="Performing first-run Webpack build..." />
    <Exec Command="node node_modules/webpack/bin/webpack.js --config webpack.config.vendor.js" />
    <Exec Command="node node_modules/webpack/bin/webpack.js" />
</Target>

<Target Name="PublishRunWebpack" AfterTargets="ComputeFilesToPublish">
    <!-- As part of publishing, ensure the JS resources are freshly built in production mode -->
    <Exec Command="npm install" />
    <Exec Command="node node_modules/webpack/bin/webpack.js --config webpack.config.vendor.js --env.prod" />
    <Exec Command="node node_modules/webpack/bin/webpack.js --env.prod" />

    <!-- Include the newly-built files in the publish output -->
    <ItemGroup>
      <DistFiles Include="wwwroot\dist\**; ClientApp\dist\**" />
      <ResolvedFileToPublish Include="@(DistFiles->'%(FullPath)')" Exclude="@(ResolvedFileToPublish)">
        <RelativePath>%(DistFiles.Identity)</RelativePath>
        <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
      </ResolvedFileToPublish>
    </ItemGroup>
</Target>

这将构建您的 Angular 项目并将其放在要部署的 wwwRoot 文件夹中，这样您就不必使用 ng serve。

Answer 2

我个人更喜欢在开发时将 Angular 和 API 项目分开。您可以使用 proxy.config.json 文件来配置代理来解决跨域请求。然后，当您要部署时，您有一个脚本来构建 api，然后构建 Angular 并将 dist 复制到您的 api 的 wwwroot 文件夹中。