第一步： 搭建上传类基础工作，具体请看：//www.jb51.net/article/120242.htm

第二步：建站一个product表，字段id,name,picurl.

第三步：生GII生成PRODUCT 模型，类，视图。

第四步：

main.css 放在frontend\web\css

.onedialog{position:absolute; left: 300px; top: 500px; z-index: 10; width: 700px; height: 400px;border-radius:5px;box-shadow:5px 2px 6px #000; border: 2px solid #666}.oneiframe{ width: 100%; height: 100% }

main.js 放在 frontend\web\assets

$(function(){ $('#product-picurl').click(function(){ $('#oneupload').remove(); $('<div>').appendTo($('body')).attr({"class":"onedialog",'id':"oneupload"}); $('<iframe>').appendTo($('#oneupload')).attr({"src":"?r=upload","class":"oneiframe"}) }); var v=$('#product-picurl').val(); if(v){ $('<img>').attr({"src":v,"style":"height:50px"}).insertAfter($('#product-picurl')); }});

然后在frontend\assets\AppAsset.php中注册这两个文件

class AppAsset extends AssetBundle{ public $basePath = '@webroot'; public $baseUrl = '@web'; public $css = [ 'css/site.css', 'css/main.css', ]; public $js = [ 'assets/main.js' ]; public $depends = [ 'yii\web\YiiAsset', 'yii\bootstrap\BootstrapAsset', ];}

UploadController.php

<?PHPnamespace frontend\controllers;use Yii;use yii\web\Controller;use app\models\UploadForm;use yii\web\UploadedFile;class UploadController extends Controller{ public function actionIndex() { $model = new UploadForm(); if (Yii::$app->request->isPost) { $model->file = UploadedFile::getInstance($model, 'file'); if ($model->file && $model->validate()) { //$model->file->saveAs('uploads/' . $model->file->baseName . '.' . $model->file->extension); $fileName='uploads/' . date("YmdHis") . '.' . $model->file->extension; $model->file->saveAs($fileName); } echo "<script src='assets/upload.js'></script>;"; echo "<script>"; echo "var oneinput=parent.document.getElementById('product-picurl');"; echo "parent.document.getElementById('product-picurl').value='".$fileName."';"; echo "var oneupload = parent.document.getElementById('oneupload');"; echo "var img = document.createElement('img');"; echo "img.setAttribute('style', 'height:50px');"; echo "img.src ='".$fileName."';"; echo "insertAfter(img,oneinput);"; echo "oneupload.parentNode.removeChild(oneupload)"; echo "</script>"; } return $this->render('upload', ['model' => $model]); }}?>

UploadForm.php

<?PHPnamespace app\models;use yii\base\Model;use yii\web\UploadedFile;/** * UploadForm is the model behind the upload form. */class UploadForm extends Model{ /** * @var UploadedFile file attribute */ public $file; /** * @return array the validation rules. */ public function rules() { return [ [['file'], 'file'], ]; }}?>

upload.php

<?phpuse yii\widgets\ActiveForm;?><?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]) ?><?= $form->field($model, 'file')->fileInput() ?><button>Submit</button><?php ActiveForm::end() ?>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。