yii2扩展：https://github.com/mihaildev/yii2-elfinder
教程虽然是俄语，不用怕，按代码来就行
步骤：
1、使用composer安装扩展
composer require --prefer-dist mihaildev/yii2-elfinder "*"
2、加入配置信息，我是Yii2高级模版，在后台中使用，所以打开backend/config/main.php配置文件
与'components'同级添加
'controllerMap' => [ 'elfinder' => [ 'class' => 'mihaildev\elfinder\PathController', 'access' => ['@'], 'root' => [ 'path' => 'uploads', //主目录路径 'name' => 'Files' ],/*
'watermark' => [
'source' => __DIR__.'/logo.png', // Path to Water mark image
'marginRight' => 5, // Margin right pixel
'marginBottom' => 5, // Margin bottom pixel
'quality' => 95, // JPEG image save quality
'transparency' => 70, // Water mark image transparency ( other than PNG )
'targetType' => IMG_GIF|IMG_JPG|IMG_PNG|IMG_WBMP, // Target image formats ( bit-field )
'targetMinPixel' => 200 // Target image minimum pixel size
]*/ ]
],3、添加默认参数
打开commmon(backend)/config/params.php
// elfinder默认配置 'elfinderDefaultConfig' => [ 'language' => 'zh_CN', 'controller' => 'elfinder', // 默认控制名 'filter' => 'image', // 只管理图片 https://github.com/Studio-42/elFinder/wiki/Client-configuration-options#wiki-onlyMimes 'template' => '{input} {button}', 'options' => ['class' => 'form-control'], 'buttonOptions' => ['class' => 'btn btn-default'], 'buttonName' => '浏览' ],
4、最后一步，引入调用
打开要用到的form视图文件，添加如下代码
use mihaildev\elfinder\InputFile; params['elfinderDefaultConfig'],['path' => $dir]); echo $form->field($model, 'carLogo')->widget(InputFile::className(),$elfinderConfig); ?>
最终效果：
