使用清晰设计系统构建 Angular 2 应用程序答案

【问题标题】：Building an Angular 2 App with Clarity Design System使用清晰设计系统构建 Angular 2 应用程序
【发布时间】：2017-04-13 11:32:40
【问题描述】：

在将 Clarity Design System 从他们的官方 tutorial 添加到 angular 2 5min quickstart 后，我遇到了这个错误。浏览器控制台的错误并没有太大帮助，请给点建议？

zone.js:1382 GET http://localhost:3000/clarity-angular 404 (Not Found)
Error: (SystemJS) XHR error (404 Not Found) loading http://localhost:3000/clarity-angular(…)

app.module.ts

import {NgModule} from '@angular/core';
import {BrowserModule} from '@angular/platform-browser';
import {ClarityModule} from 'clarity-angular';
import {AppComponent} from './app.component';

@NgModule({
  imports: [BrowserModule,
            ClarityModule],
  declarations: [AppComponent],
  bootstrap: [AppComponent]
})
export class AppModule {
}

index.html

<!DOCTYPE html>
<html>
  <head>
    <title>Angular QuickStart</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="styles.css">

    <link rel="stylesheet" href="node_modules/clarity-icons/clarity-icons.min.css">
    <script src="node_modules/mutationobserver-shim/dist/mutationobserver.min.js"></script>
    <script src="node_modules/@webcomponents/custom-elements/custom-elements.min.js"></script>
    <script src="node_modules/clarity-icons/clarity-icons.min.js"></script>
    <link rel="stylesheet" href="node_modules/clarity-ui/clarity-ui.min.css">

    <!-- Polyfill(s) for older browsers -->
    <script src="node_modules/core-js/client/shim.min.js"></script>

    <script src="node_modules/zone.js/dist/zone.js"></script>
    <script src="node_modules/reflect-metadata/Reflect.js"></script>
    <script src="node_modules/systemjs/dist/system.src.js"></script>
    <script src="systemjs.config.js"></script>
    <script>
      System.import('app').catch(function(err){ console.error(err); });
    </script>
  </head>

  <body>
    <my-app>Loading AppComponent content here ...</my-app>
  </body>
</html>

systemjs.config.js

(function (global) {
  System.config({
    paths: {
      // paths serve as alias
      'npm:': 'node_modules/'
    },
    // map tells the System loader where to look for things
    map: {
      // our app is within the app folder
      app: 'app',

      // angular bundles
      '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
      '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
      '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
      '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
      '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
      '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
      '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
      '@angular/router/upgrade': 'npm:@angular/router/bundles/router-upgrade.umd.js',
      '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
      '@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',
      '@angular/upgrade/static': 'npm:@angular/upgrade/bundles/upgrade-static.umd.js',

      // other libraries
      'rxjs':                      'npm:rxjs',
      'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js'

    },
    // packages tells the System loader how to load when no filename and/or no extension
    packages: {
      app: {
        main: './main.js',
        defaultExtension: 'js'
      },
      rxjs: {
        defaultExtension: 'js'
      }
    }
  });
})(this);

【问题讨论】：

标签： javascript angular systemjs clarity vmware-clarity

【解决方案1】：

更新将clarity-angular 添加到map 和package 部分。请参见下面的示例。

(function (global) {
  System.config({
    paths: {
      // paths serve as alias
      'npm:': 'node_modules/',
      'build:': 'build',
      'src:': ''
    },
    // map tells the System loader where to look for things
    map: {
      // our app is within the app folder
      //app: 'build:',
      app: 'app',
      // angular bundles
      '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
      '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
      '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
      '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
      '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
      '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
      '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
      '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
      '@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',
      // other libraries
      'rxjs': 'npm:rxjs',
      'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js',
      //'angular2-mdl': 'npm:angular2-mdl/bundle/angular2-mdl.js'
      //'angular2-mdl': 'npm:angular2-mdl',
      'clarity-angular': 'npm:clarity-angular'
    },
    // packages tells the System loader how to load when no filename and/or no extension
    packages: {
      app: {
        main: 'main.js',
        defaultExtension: 'js'
      },
      rxjs: {
        main: 'Rx.js',
        defaultExtension: 'js'
      },
      'clarity-angular': {
        main: 'index.js',
        defaultExtension: 'js'
      }
    }
  });
})(this);

如果您直接在主 app.component.html 中使用 Clarity 指令，则需要 import { ClarityModule } from 'clarity-angular'; 并将 ClarityModule 添加到 @NgModule imports。如果您需要在路由器下使用 Clarity 指令，您还应该在应用程序路由器模块中导入 ClarityModule

import { NgModule }             from '@angular/core';
import { RouterModule, Routes } from '@angular/router';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';

import { ClarityModule } from 'clarity-angular';

import { SearchFormComponent } from './components/search-form/search-form.component';

const routes: Routes = [
     { path: 'search', component: SearchFormComponent }
];
@NgModule({
    imports: [
        FormsModule,
        ReactiveFormsModule,
        ClarityModule,
        RouterModule.forRoot(routes)
    ],
    declarations: [
        SearchFormComponent
    ],
    exports: [ RouterModule ]
})
export class AppRoutingModule {}

【讨论】：

这system.config 解决了我的问题。来自 Clarity Project 的 clr-datagrid 示例也适用于我的代码。
太棒了。当您决定在您的应用程序中引入路由器 NgModule 时，还要注意导入。您还需要将 ClarityModule 导入路由器模块。

【解决方案2】：

import {ClarityModule} from 'clarity-angular';

需要在 systemjs.config 中添加 Angular 2 最新版本

【讨论】：

你能告诉我到底要在 systemjs.config.js 中添加什么吗？我尝试将clearance-angular.min.js 路径添加到配置的地图部分，但它没有用