yii2 上传图片的示例代码
发布:smiling 来源: PHP粉丝网 添加日期:2021-11-01 14:35:14 浏览: 评论:0
这篇文章主要介绍了yii2 上传图片的示例代码,小编觉得挺不错的,现在分享给大家,也给大家做个参考,一起跟随小编过来看看吧。
第一步: 搭建上传类基础工作
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
- <?PHP
- namespace 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
- <?PHP
- namespace 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
- <?php
- use yii\widgets\ActiveForm;
- ?>
- <?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]) ?>
- <?= $form->field($model, 'file')->fileInput() ?>
- <button>Submit</button>
- <?php ActiveForm::end() ?>
Tags: yii2上传图片
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