react 下载本地文件

在webapck配置全局变量

   const src = '../src'; // 源码目录
  const STATIC_PATH = 'static';

   plugins: [
        new CleanWebpackPlugin([build], {
            root: resolve('../')
        }),
        new HtmlWebpackPlugin({
            filename: 'index.html',
            template: './src/index.html'
        }),
        new ProgressBarPlugin(),
        new CaseSensitivePathsPlugin(),
        new HappyPack({
            loaders: [{
                loader: 'babel-loader',
                options: {
                    cacheDirectory: true
                }
            }],
            threads: 4
        }),
        new CopyWebpackPlugin([                    //此插件
            {                                                            
                from: resolve(src + '/data'),            // 引入文件
                to: `${STATIC_PATH}/data/`,         // 下载时候的路径
                toType: 'dir'                         
            },
            {
                from: resolve(src + '/libs'),
                to: `${STATIC_PATH}/libs`,
                toType: 'dir'
            },
            {
                from: resolve(src + '/fonts'),
                to: `${STATIC_PATH}/fonts/`,
                toType: 'dir'
            }
        ])
    ]

<p  className={'move'}>
<a  href={`/static/data/${fileName}`} target="_blank"  download={fileName}>模板文件下载&emsp;&emsp;&emsp;&emsp;</a>
/p>