如何在 WebStorm 2016.1 中使用 ng2-file-uploader？

Question

我必须在我的应用程序中使用 ng2-file-uploader。我已经按照这个 Github project 但是发生了这个错误。

PS : 我是 Angular2 开发的新手。

I am using the latest version of webstorm (2016.1) and Typescript 1.8.2


ERROR in ./~/ng2-file-upload/components/file-upload/file-uploader.ts
Module parse failed: C:\Users\...\Desktop\FrontEndSkilify\skilify-front\node_modules\tslintloader\index.js!C:\Users\...\Desktop\FrontEndSkilify\skilify-front\node_modules\ng2-file-upload\components\file-upload\file-uploader.ts Line 1: Unexpected token
    You may need an appropriate loader to handle this file type.
    | import {FileLikeObject} from './file-like-object';
    | import {FileItem} from './file-item';
    |
     @ ./~/ng2-file-upload/ng2-file-upload.js 6:9-58

这是我的代码：

demo.ts :

import {Component, NgZone} from 'angular2/core';
import {Http} from "angular2/http";
import {UPLOAD_DIRECTIVES} from 'ng2-uploader/ng2-uploader';
import {NgFileSelect} from 'ng2-uploader/src/directives/ng-file-select';

let styles = require('./demo.css')
   let template = require('./demo.html');
@Component({
    selector: 'demo',
    template: template,
    styles: [styles],
    providers: [],
   directives: [UPLOAD_DIRECTIVES,NgFileSelect],
    pipes: []

  })


    export class Demo {
    file:File;
    zone: NgZone;
    options: Object = {
        url: 'http://ng2-uploader.com:10050/upload'
    };
    basicProgress: number = 0;
    basicResp: Object;
    multipleProgress: number = 0;
    multipleResp: any[] = [];
    dropProgress: number = 0;
    dropResp: any[] = [];

    response : string;
    constructor(public http: Http){

        this.zone = new NgZone({ enableLongStackTrace: false });
    }

    handleBasicUpload(data): void {
        this.basicResp = data;
        this.zone.run(() => {
            this.basicProgress = data.progress.percent;
        });
        /* return this.http.post(API + '/api/upload',JSON.stringify(name),{ headers: contentHeaders })
         .subscribe(res => {console.log(res)},
         error=>{this.response = error.text()}

         );*/

    }

    }

我的demo.html:

<div class="columns">
    <div class="column is-4">
        <div class="message is-danger">
            <div class="message-header">Basic Example</div>
            <div class="message-body">
                <div class="content">
                    <label class="tag btn is-danger">
                        <i class="fa fa-upload icon is-small"></i> Choose file
                        <input type="file" [ng-file-select]="options" (onUpload)="handleBasicUpload($event)">
                    </label>
                    <div class="progress">
                        <div class="progress-bar" [style.width]="basicProgress + '%'"></div>
                        <span class="percent">{{ basicProgress }}%</span>
                    </div>
                </div>
            </div>
        </div>
    </div>
    <div class="message resp">
        <div class="message-header">Response</div>
        <div class="message-body">
            <p>
                {{ basicResp | json }}
            </p>
    </div>
    </div>
</div>

我的webpack.js;

var sliceArgs = Function.prototype.call.bind(Array.prototype.slice);
var toString  = Function.prototype.call.bind(Object.prototype.toString);
var path = require('path');
var webpack = require('webpack');
// Webpack Plugins
var CommonsChunkPlugin = webpack.optimize.CommonsChunkPlugin;

module.exports = {
  devtool: 'source-map',
  // devtool: 'eval',

  //
  entry: {
    'vendor': [
      // Polyfills
      'es6-shim',
      'es6-promise',
      'reflect-metadata',
      'zone.js/dist/zone-microtask',
      'zone.js/dist/long-stack-trace-zone',
      // Angular2
      'angular2/platform/browser',
      'angular2/platform/common_dom',
      'angular2/core',
      'angular2/router',
      'angular2/http',
      // RxJS
      'rxjs',
      // Other
      'angular2-jwt'
    ],
    'app': [
      './src/index'
    ]
  },

  // Config for our build files
  output: {
    path: root('build'),
    filename: '[name].js',
    // filename: '[name].[hash].js',
    sourceMapFilename: '[name].js.map',
    chunkFilename: '[id].chunk.js'
    // publicPath: 'http://mycdn.com/'
  },

  resolve: {
    root: __dirname,
    extensions: [
      '',
      '.ts',
      '.js',
      '.json',
      '.css',
      '.html'
    ]
  },

  module: {
    preLoaders: [ { test: /\.ts$/, loader: 'tslint-loader' } ],
    loaders: [
      // Support for .ts files.
      {
        test: /\.ts$/,
        loader: 'ts-loader',
        query: {
          'ignoreDiagnostics': [
            2403, // 2403 -> Subsequent variable declarations
            2300, // 2300 Duplicate identifier
            2374, // 2374 -> Duplicate number index signature
            2375  // 2375 -> Duplicate string index signature
          ]
        },
        exclude: [ /\.spec\.ts$/, /\.e2e\.ts$/, /node_modules/ ]
      },

      // Support for *.json files.
      { test: /\.json$/,  loader: 'json-loader' },

      // Support for CSS as raw text
      { test: /\.css$/,   loader: 'raw-loader' },

      // support for .html as raw text
      { test: /\.html$/,  loader: 'raw-loader' },
    ],
    noParse: [
     /zone\.js\/dist\/.+/,
     /reflect-metadata/,
     /es(6|7)-.+/,
    ]
  },

  plugins: [
    new CommonsChunkPlugin({ name: 'vendor', filename: 'vendor.js', minChunks: Infinity }),
    new CommonsChunkPlugin({ name: 'common', filename: 'common.js', minChunks: 2, chunks: ['app', 'vendor'] })
  ],
  
  // Other module loader config
  tslint: {
    emitErrors: false,
    failOnHint: false
  },
  
  // our Development Server configs
  // our Webpack Development Server config
  devServer: {
    historyApiFallback: true,
    publicPath: '/build'
  }
};

function getBanner() {
  return 'This is a sample that shows how to add authentication to an Angular 2 (ng2) app by @auth0';
}

function root(args) {
  args = sliceArgs(arguments, 0);
  return path.join.apply(path, [__dirname].concat(args));
}
function rootNode(args) {
  args = sliceArgs(arguments, 0);
  return root.apply(path, ['node_modules'].concat(args));
}

我的 NgFileSelect :

import {Directive, ElementRef, EventEmitter} from 'angular2/core';
import {Ng2Uploader} from '../services/ng2-uploader';

@Directive({
    selector: '[ng-file-select]',
    inputs: ['options: ng-file-select'],
    outputs: ['onUpload'],
    host: {'(change)': 'onFiles()'},
})
export class NgFileSelect {
    uploader:Ng2Uploader;
    options:any;
    onUpload:EventEmitter<any> = new EventEmitter();

    constructor(public el:ElementRef) {
        this.uploader = new Ng2Uploader();
        setTimeout(() => {
            this.uploader.setOptions(this.options);
        });

        this.uploader._emitter.subscribe((data) => {
            this.onUpload.emit(data);
        });
    }

    onFiles():void {
        let files = this.el.nativeElement.files;
        if (files.length) {
            this.uploader.addFilesToQueue(files);
        }
    }

}

Answer 1

您的项目不理解打字稿 (.ts) 文件 - 至少这是错误抱怨。

您是否为您的项目正确设置了打字稿？您可以使用您的 WebStorm IDE 激活它，只需进入设置 - 搜索打字稿并启用它。但是 IDE 打字稿支持的问题是，只有您积极处理的文件才会被编译。

那么你的构建脚本..呢？你使用 webpack 或 browserify 还是 system.js 来构建你的项目？我建议从一个不错的种子项目开始，它已经为您设置了所有这些，例如：https://github.com/AngularClass/angular2-webpack-starter

一个如何与 webpack 一起设置 typescript 工作流的例子： http://www.jbrantly.com/typescript-and-webpack/

基本上：

为您的项目设置 webpack
为您的项目设置 typescript npm 模块和 tsconfig.json
为您的 webpack 配置包含 tsloader 部分

享受运行可行的 typescript/ng2 项目 ;)

更新

现在提供了你的代码。我想知道你的 ts-loader 定义在这个查询中做了什么......我几乎不记得当你提供 "query" 参数时，它只会选择向上定义的内容.. 如果你删除它，他将拾取与 "test" 参数匹配的所有内容，除了它与排除正则表达式匹配。

我用的这个就简单多了：

{test: /\.ts$/, loader: 'ts-loader', exclude: [/\.(spec|e2e)\.ts$/]},

并挑选项目中所有不以 *.spec.ts 或 *.e2e.ts 结尾的 .ts 文件 - 尝试一次..如果错误仍然存在，我有运行我自己对这段代码进行更深入的研究..

如何在 WebStorm 2016.1 中使用 ng2-file-uploader？

How to use ng2-file-uploader with WebStorm 2016.1?

typescript

angular

webstorm

ng-file-upload

typescript1.8

PS : 我是 Angular2 开发的新手。