javascript - 引用圖片路勁問題

Question

圖片的引用:

<img src="../assets/image/setting.png"/>

目錄結構:

#寫的相對路勁,為什麼圖片沒有顯示出來?
console提示:

#webpack:

var path = require("path");
var webpack = require("webpack");
var HtmlWebpackPlugin = require("html-webpack-plugin");

module.exports = {
    entry: [
        "react-hot-loader/patch",
        "webpack-dev-server/client?http://0.0.0.0:3000",
        "webpack/hot/only-dev-server",
        "babel-polyfill",
        "whatwg-fetch",
        "./src/index"
    ],
    devServer: {
        hot: true,
        contentBase: path.resolve(__dirname, "dist"),
        port: 3000,
        host: "0.0.0.0",
        publicPath: "/",
        historyApiFallback: true,
        disableHostCheck: true,
        proxy: {
            "/agent": {
                target: "http://dn4:19000",
                changeOrigin: true,
            },
            "/api": {
                target: "http://dn4:19989",
                changeOrigin: true,
            },
            "/sign": {
                target: "http://dn4:19000",
                changeOrigin: true,
            },
            "/file": {
                target: "http://dn4:19000",
                changeOrigin: true,
            },
        }
    },
    output: {
        path: path.join(__dirname, "dist"),
        publicPath: "/",
        filename: "app.[hash].js"
    },
    devtool: "eval",
    module: {
        rules: [
            {
                test: /\.js$/,
                exclude: /node_modules/,
                loader: "babel-loader",
                options: {
                    presets: [
                        ["es2015", {"modules": false}],
                        "stage-0",
                        "react"
                    ],
                    plugins: [
                        "transform-async-to-generator",
                        "transform-decorators-legacy",
                        ["import", {"libraryName": "antd", "style": true}]
                    ]
                }
            },
            {
                test: /\.scss|css$/,
                use: [
                    "style-loader",
                    "css-loader",
                    "postcss-loader",
                    "resolve-url-loader",
                    "sass-loader?sourceMap"
                ]
            },
            {
                test: /\.less$/,
                use: [{
                    loader: "style-loader" // creates style nodes from JS strings
                }, {
                    loader: "css-loader" // translates CSS into CommonJS
                }, {
                    loader: "less-loader", options: {
                        modifyVars: {
                            "primary-color": "#0183ff",
                            "font-size-base": "16px",
                        }
                    } // compiles Less to CSS
                }]
            },
            {
                test: /\.(jpe?g|png|gif|svg)$/i,
                use: [
                    "file-loader?hash=sha512&digest=hex&name=[hash].[ext]",
                    {
                        loader: "image-webpack-loader",
                        options: {
                            progressive: true,
                            optimizationLevel: 7,
                            interlaced: false,
                            pngquant: {
                                quality: "65-90",
                                speed: 4
                            }
                        }
                    }
                ]
            },
            {
                test: /\.woff(2)?(\?v=[0-9]\.[0-9]\.[0-9])?$/,
                use: "url-loader?limit=10000&mimetype=application/font-woff"
            },
            {
                test: /\.(ttf|eot|svg)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
                use: "file-loader"
            }
        ]
    },
    plugins: [
        new webpack.NamedModulesPlugin(),
        new webpack.HotModuleReplacementPlugin(),
        new HtmlWebpackPlugin({hash: false, template: "./index.hbs"}),
        new webpack.ContextReplacementPlugin(/moment[\/\]locale$/, /nb/)
    ]
};

原因找到了:

        contentBase: path.resolve(__dirname, "dist"),

路勁應該寫相對於dist的路徑
但是現在又有一個問題!這樣寫在生產環境肯定是顯示不了圖片的!
我不打算將靜態資源放在/dist下,樓下說了static檔案的方法,這個應該要設定webpack,有沒有朋友分享一下

Answer 1

靜態資源的問題已解決,解決方案:
使用webpack的一個插件,生產環境編譯時可以將/static目錄的文件拷貝到/dist目錄下

new CopyWebpackPlugin([
    {
        from: path.resolve(__dirname, 'static'),
        to: path.resolve(__dirname, 'dist/static'),
        ignore: ['*.js']
    }
])

開發的時候的時候webpack-devserver設定:

contentBase: path.resolve(__dirname),
publicPath: "/",

這樣在程式碼裡面只要寫絕對路徑/static/..就行了

Answer 2

你寫img的檔案在哪裡啊? "../assets/image/setting.png"這個只有你寫img的檔案在components目錄下才有效.

Answer 3

如果是使用vue-cli的webpack模板，會被轉成絕對路徑，如：/images/setting.png，建議將圖片放在static資料夾下。

Answer 4

固定路徑都放在/static下面把，唯一打包前打包後位置不變的地方