Webpack:从 html 模板加载图像 [英] Webpack: Loading images from html templates

问题描述

我正在尝试使用 Webpack 设置一个 angular 项目，但我不知道如何从 html 模板中引用图像并将它们包含在构建中.

我的项目树如下:

package.json应用程序/- 图片/- foo.png- 脚本/- 样式/- 模板/

我正在尝试将 html-loader 与 url-loader 和 file-loader 一起使用，但它没有发生.

这是一个示例模板:app/templates/foo.html

问题 #1:我希望能够引用与 app/ 相关的图像.现在，路径需要相对于模板文件，这会很快变得丑陋(../../../images/foo.png).

问题#2:即使我指定了相对路径，就像我上面所做的那样，项目构建成功，但实际上什么也没发生.路径保持原样，dist/ 中没有图像.

这是我的 webpack 配置:

var path = require('path');var webpack = require('webpack');var ngminPlugin = require('ngmin-webpack-plugin');var HtmlWebpackPlugin = require('html-webpack-plugin');var ExtractTextPlugin = require('extract-text-webpack-plugin');var ngAnnotatePlugin = require('ng-annotate-webpack-plugin');module.exports = 函数(配置，环境){var appRoot = path.join(__dirname, 'app/')if(!env) env = '发展';var webpackConfig = {缓存:真实，调试:真的，内容基础:appRoot，入口: {应用程序:path.join(appRoot, '/scripts/app.coffee')},输出: {路径:path.join(__dirname, 'dist/),公共路径:'/'，图书馆目标:'var'，文件名:'脚本/[名称].[哈希].js'，chunkFilename: '[name].[chunkhash].js'},模块: {装载机: [{测试:/\.css$/,loader: ExtractTextPlugin.extract("style-loader", "css-loader")},{测试:/\.scss$/,loader: ExtractTextPlugin.extract('style-loader', 'css-loader!sass-loader?outputStyle=expanded&includePaths[]=./node_modules/foundation/scss/')},{测试:/\.coffee$/,装载机:'咖啡装载机'},{加载器:'ngtemplate?relativeTo=' + (path.resolve(__dirname, './app')) + '/!html'},{测试:/\.png$/，加载器:url-loader?limit=100000&mimetype=image/png&name=[path][name].[hash].[ext]"},{测试:/\.jpg$/，加载器:file-loader?name=[path][name].[hash].[ext]"},{测试:/\.(woff|woff2)(\?(.*))?$/,加载器:'url?prefix=factorynts/&limit=5000&mimetype=application/font-woff'},{测试:/\.ttf(\?(.*))?$/,加载器:'文件?前缀=字体/'},{测试:/\.eot(\?(.*))?$/,加载器:'文件?前缀=字体/'},{测试:/\.svg(\?(.*))?$/,加载器:'文件?前缀=字体/'},{测试:/\.json$/,加载器:'json'}]},解决: {扩展名: ['','.js','.咖啡'，'.scss','.css'],根:[appRoot]，},单运行:真，插件: [新的 webpack.ContextReplacementPlugin(/.*$/,/a^/),新的 webpack.ProvidePlugin({'_': 'lodash'}),new ExtractTextPlugin("styles/[name].[chunkhash].css", {allChunks: true}),新的 HtmlWebpackPlugin({模板:appRoot + '/app.html',文件名:'app.html',注入:'身体'，块:['应用程序']})],开发工具:'评估'}如果(环境 === '生产'){webpackConfig.plugins = webpackConfig.plugins.concat(新的 ngAnnotatePlugin(),新的 webpack.optimize.UglifyJsPlugin(),新的 webpack.DefinePlugin({'过程环境':{'NODE_ENV': JSON.stringify('production')}}),新的 webpack.optimize.DedupePlugin(),新的 webpack.optimize.UglifyJsPlugin());webpackConfig.devtool = false;webpackConfig.debug = false;}返回 webpackConfig；

}

解决方案

1. 是的，您必须这样做才能从不同路径加载图像.
2. 我遇到了类似的问题，我使用 file 加载器解决了这个问题:

.

加载器:[{//JS加载器测试:/\.js$/,loader: 'babel-loader?optional[]=runtime',排除:/node_modules/}, {//资产加载器测试:/\.(woff|woff2|ttf|eot)$/,加载器:'文件加载器'},{//图像加载器测试:/\.(jpe?g|png|gif|svg)$/i,加载器:'文件加载器'},{//HTML加载器测试:/\.html$/,装载机:'html-装载机'},{//SCSS加载器测试:/\.scss$/,加载器:["style-loader", "css-loader", "sass-loader?indentedSyntax"]}]

祝你好运

I'm trying to set up an angular project using Webpack but I can't figure out how to reference images from within html templates and have them included in the build.

My project tree is as follows:

package.json
app/
- images/
  - foo.png
- scripts/
- styles/
- templates/

I'm trying to use html-loader along with url-loader and file-loader but it's just not happening.

This is an example template: app/templates/foo.html

<img src="../images/foo.png" />

Problem #1: I would like to be able to reference images relative to app/. Right now, the paths need to be relative to the template file and this will get ugly very quickly (../../../images/foo.png).

Problem #2: Even if I specify the relative path, as I have done above, the project builds successfully but nothing really happens. The paths are left as-is and no images appear in dist/.

Here is my webpack config:

var path = require('path');
var webpack = require('webpack');
var ngminPlugin = require('ngmin-webpack-plugin');
var HtmlWebpackPlugin = require('html-webpack-plugin');
var ExtractTextPlugin = require('extract-text-webpack-plugin');
var ngAnnotatePlugin = require('ng-annotate-webpack-plugin');
module.exports = function(config, env) {
  var appRoot = path.join(__dirname, 'app/')
  if(!env) env = 'development';
  var webpackConfig = {
    cache: true,
    debug: true,
    contentBase: appRoot,
    entry: {
      app: path.join(appRoot, '/scripts/app.coffee')
    },

    output: {
      path: path.join(__dirname, 'dist/),
      publicPath: '/',
      libraryTarget: 'var',
      filename: 'scripts/[name].[hash].js',
      chunkFilename: '[name].[chunkhash].js'
    },

    module: {
      loaders: [
        {
          test: /\.css$/,
          loader: ExtractTextPlugin.extract("style-loader", "css-loader")
        },
        {
            test: /\.scss$/,
            loader: ExtractTextPlugin.extract('style-loader', 'css-loader!sass-loader?outputStyle=expanded&includePaths[]=./node_modules/foundation/scss/')
        },
        {
          test: /\.coffee$/,
          loader: 'coffee-loader'
        },
        {
          loader: 'ngtemplate?relativeTo=' + (path.resolve(__dirname, './app')) + '/!html'
        },
        {
          test: /\.png$/, loader: "url-loader?limit=100000&mimetype=image/png&name=[path][name].[hash].[ext]"
        },
        {
          test: /\.jpg$/, loader: "file-loader?name=[path][name].[hash].[ext]"
        },
        {
          test: /\.(woff|woff2)(\?(.*))?$/,
          loader: 'url?prefix=factorynts/&limit=5000&mimetype=application/font-woff'
        },
        {
          test: /\.ttf(\?(.*))?$/,
          loader: 'file?prefix=fonts/'
        },
        {
          test: /\.eot(\?(.*))?$/,
          loader: 'file?prefix=fonts/'
        },
        {
          test: /\.svg(\?(.*))?$/,
          loader: 'file?prefix=fonts/'
        },
        {
          test: /\.json$/,
          loader: 'json'
        }
      ]
    },

    resolve: {
      extensions: [
        '',
        '.js',
        '.coffee',
        '.scss',
        '.css'
      ],
      root: [appRoot],
    },

    singleRun: true,
    plugins: [
      new webpack.ContextReplacementPlugin(/.*$/, /a^/),
      new webpack.ProvidePlugin({
        '_': 'lodash'
      }),
      new ExtractTextPlugin("styles/[name].[chunkhash].css", {allChunks: true}),
      new HtmlWebpackPlugin({
        template: appRoot + '/app.html',
        filename: 'app.html',
        inject: 'body',
        chunks: ['app']
      })
    ],
    devtool: 'eval'
  }

  if(env === 'production') {
    webpackConfig.plugins = webpackConfig.plugins.concat(
      new ngAnnotatePlugin(),
      new webpack.optimize.UglifyJsPlugin(),
      new webpack.DefinePlugin({
        'process-env': {
          'NODE_ENV': JSON.stringify('production')
        }
      }),
      new webpack.optimize.DedupePlugin(),
      new webpack.optimize.UglifyJsPlugin()
    );
    webpackConfig.devtool = false;
    webpackConfig.debug = false;
  }
  return webpackConfig;

}

解决方案

1. Yes, you will have to do so for loading images from different path.
2. I had similar issue and I resolved this using file loader:

.

loaders: [{
  // JS LOADER
  test: /\.js$/,
  loader: 'babel-loader?optional[]=runtime',
  exclude: /node_modules/
}, {
  // ASSET LOADER
  test: /\.(woff|woff2|ttf|eot)$/,
  loader: 'file-loader'
},
{
  //IMAGE LOADER
  test: /\.(jpe?g|png|gif|svg)$/i,
  loader:'file-loader'
},
{
  // HTML LOADER
  test: /\.html$/,
  loader: 'html-loader'
},
{
  //SCSS LOADER
  test: /\.scss$/,
  loaders: ["style-loader", "css-loader", "sass-loader?indentedSyntax"]
}
]

Good Luck

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