yii2 上传图片的示例代码

2023-09-06 07:59:05 434

第一步：搭建上传类基础工作，具体请看：//www.nhooo.com/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:5px2px6px#000;border:2pxsolid#666}
.oneiframe{width:100%;height:100%}

main.js放在frontend\web\assets

$(function(){
$('#product-picurl').click(function(){
$('#oneupload').remove();
$('').appendTo($('body')).attr({"class":"onedialog",'id':"oneupload"});
$('').appendTo($('#oneupload')).attr({"src":"?r=upload","class":"oneiframe"})
});
varv=$('#product-picurl').val();
if(v){
$('<img>').attr({"src":v,"style":"height:50px"}).insertAfter($('#product-picurl'));
}
});
</pre>
<p>然后在frontend\assets\AppAsset.php中注册这两个文件</p>
<pre>
classAppAssetextendsAssetBundle
{
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',
];
}
</pre>
<p>UploadController.php</p>
<pre>
<?PHP
namespacefrontend\controllers;

useYii;
useyii\web\Controller;
useapp\models\UploadForm;
useyii\web\UploadedFile;

classUploadControllerextendsController
{
publicfunctionactionIndex()
{
$model=newUploadForm();

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"<scriptsrc='assets/upload.js'></script>;";
echo"<script>";
echo"varoneinput=parent.document.getElementById('product-picurl');";
echo"parent.document.getElementById('product-picurl').value='".$fileName."';";
echo"varoneupload=parent.document.getElementById('oneupload');";
echo"varimg=document.createElement('img');";
echo"img.setAttribute('style','height:50px');";
echo"img.src='".$fileName."';";
echo"insertAfter(img,oneinput);";
echo"oneupload.parentNode.removeChild(oneupload)";
echo"</script>";
}

return$this->render('upload',['model'=>$model]);
}
}
?>

</pre>
<p>UploadForm.php</p>
<pre>
<?PHP
namespaceapp\models;

useyii\base\Model;
useyii\web\UploadedFile;

/**
*UploadFormisthemodelbehindtheuploadform.
*/
classUploadFormextendsModel
{
/**
*@varUploadedFilefileattribute
*/
public$file;

/**
*@returnarraythevalidationrules.
*/
publicfunctionrules()
{
return[
[['file'],'file'],
];
}
}
?>

</pre>
<p>upload.php</p>
<pre>
<?php
useyii\widgets\ActiveForm;
?>

<?php$form=ActiveForm::begin(['options'=>['enctype'=>'multipart/form-data']])?>

<?=$form->field($model,'file')->fileInput()?>

<button>Submit</button>

<?phpActiveForm::end()?>

</pre>
<p>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毛票票。</p></section>
                </div>
            </div>
            <!--文章阅读上下按钮-->  
            <nav>
                                    <span class="meta-nav"><a href="/article/201819.html" title="mysql5.7及mysql 8.0版本修改root密码的方法小结" se_prerender_url="complete">上一篇<br>mysql5.7及mysql 8.0版本修改root密码的方法小结</a></span>
                
                                    <span class="meta-nav"><a href="/article/201816.html" title="关于AIX挂载NFS写入效率低效的解决方法" se_prerender_url="complete">下一篇<br>关于AIX挂载NFS写入效率低效的解决方法</a></span>
                            <div class="clear"></div>
            </nav>
            <!-- 文章推荐 -->
            <div class="article-recommend">         
                <h3>热门推荐</h3> 
                                        <div class="title"><span class="s-1">1</span> <a href="/article/371879.html" title="除夕祝福语大全简短的">除夕祝福语大全简短的</a></div>  
                                        <div class="title"><span class="s-2">2</span> <a href="/article/372129.html" title="求婚祝福语普通朋友简短">求婚祝福语普通朋友简短</a></div>  
                                        <div class="title"><span class="s-3">3</span> <a href="/article/372013.html" title="新年简短20字祝福语">新年简短20字祝福语</a></div>  
                                        <div class="title"><span class="s-4">4</span> <a href="/article/371880.html" title="过年霸气祝福语简短的">过年霸气祝福语简短的</a></div>  
                                        <div class="title"><span class="s-5">5</span> <a href="/article/371859.html" title="公司年会祝福语大全 简短">公司年会祝福语大全 简短</a></div>  
                                        <div class="title"><span class="s-6">6</span> <a href="/article/371960.html" title="暖男祝福语简短精辟">暖男祝福语简短精辟</a></div>  
                                        <div class="title"><span class="s-7">7</span> <a href="/article/371900.html" title="姐妹生日祝福语简短的话">姐妹生日祝福语简短的话</a></div>  
                                        <div class="title"><span class="s-8">8</span> <a href="/article/371933.html" title="祖国生日祝福语简短情话">祖国生日祝福语简短情话</a></div>  
                                        <div class="title"><span class="s-9">9</span> <a href="/article/371975.html" title="法式祝福语简短10字">法式祝福语简短10字</a></div>  
                                        <div class="title"><span class="s-10">10</span> <a href="/article/371860.html" title="长辈简单生日祝福语简短">长辈简单生日祝福语简短</a></div>  
                                        <div class="title"><span class="s-11">11</span> <a href="/article/372002.html" title="升孩子大学祝福语简短">升孩子大学祝福语简短</a></div>  
                                        <div class="title"><span class="s-12">12</span> <a href="/article/371832.html" title="简短喜庆的结婚祝福语">简短喜庆的结婚祝福语</a></div>  
                                        <div class="title"><span class="s-13">13</span> <a href="/article/371937.html" title="写信祝福语简短文字">写信祝福语简短文字</a></div>  
                                        <div class="title"><span class="s-14">14</span> <a href="/article/372035.html" title="家人求婚成功简短祝福语">家人求婚成功简短祝福语</a></div>  
                                        <div class="title"><span class="s-15">15</span> <a href="/article/371891.html" title="狗生日祝福语简短霸气">狗生日祝福语简短霸气</a></div>  
                                        <div class="title"><span class="s-16">16</span> <a href="/article/372032.html" title="亲戚去相亲祝福语简短">亲戚去相亲祝福语简短</a></div>  
                                        <div class="title"><span class="s-17">17</span> <a href="/article/371831.html" title="三节祝福语简短">三节祝福语简短</a></div>  
                                        <div class="title"><span class="s-18">18</span> <a href="/article/371939.html" title="杜锋结婚祝福语简短">杜锋结婚祝福语简短</a></div>  
                     
            </div>
            <div class="add-gg">
                <!-- 文章内页广告 -->
                <ins class="adsbygoogle"
                     style="display:block"
                     data-ad-client="ca-pub-4387516810452807"
                     data-ad-slot="9131157744"
                     data-ad-format="auto"
                     data-full-width-responsive="true"></ins>
                <script>
                     (adsbygoogle = window.adsbygoogle || []).push({});
                </script>
            </div>
        </div>
        <!--侧边栏-->
        <div id="sidebar">
            <li class="sidebar-box">
                <h3 class="widget-title">随机推荐</h3>
                <ul>
                                            <li>
                            <a href="/article/371908.html" title="机场祝福语简短10字">机场祝福语简短10字</a>
                        </li>
                                            <li>
                            <a href="/article/371907.html" title="老婆结婚祝福语简短独特">老婆结婚祝福语简短独特</a>
                        </li>
                                            <li>
                            <a href="/article/371906.html" title="鼠年女孩生日祝福语简短">鼠年女孩生日祝福语简短</a>
                        </li>
                                            <li>
                            <a href="/article/371905.html" title="新年拜年祝福语简短版">新年拜年祝福语简短版</a>
                        </li>
                                            <li>
                            <a href="/article/371904.html" title="给亲戚祝福语大全简短">给亲戚祝福语大全简短</a>
                        </li>
                                            <li>
                            <a href="/article/371903.html" title="最新中秋祝福语简短大全">最新中秋祝福语简短大全</a>
                        </li>
                                            <li>
                            <a href="/article/371902.html" title="冬至祝福语简短冬至诗句">冬至祝福语简短冬至诗句</a>
                        </li>
                                            <li>
                            <a href="/article/371901.html" title="英语校庆祝福语简短">英语校庆祝福语简短</a>
                        </li>
                                            <li>
                            <a href="/article/371900.html" title="姐妹生日祝福语简短的话">姐妹生日祝福语简短的话</a>
                        </li>
                                            <li>
                            <a href="/article/371899.html" title="妹妹生日祝福语幽默简短">妹妹生日祝福语幽默简短</a>
                        </li>
                                            <li>
                            <a href="/article/371898.html" title="战友聚会祝福语大全简短">战友聚会祝福语大全简短</a>
                        </li>
                                            <li>
                            <a href="/article/371897.html" title="闺蜜出阁祝福语简短">闺蜜出阁祝福语简短</a>
                        </li>
                                            <li>
                            <a href="/article/371896.html" title="卡车购车祝福语简短霸气">卡车购车祝福语简短霸气</a>
                        </li>
                                            <li>
                            <a href="/article/371895.html" title="青春年轻的祝福语简短">青春年轻的祝福语简短</a>
                        </li>
                                            <li>
                            <a href="/article/371894.html" title="红包的祝福语简短独特">红包的祝福语简短独特</a>
                        </li>
                                            <li>
                            <a href="/article/371892.html" title="母亲大寿祝福语简短霸气">母亲大寿祝福语简短霸气</a>
                        </li>
                                    </ul>
            </li>
            <li class="sidebar-box">

                 <!-- google文章侧边 -->
                <ins class="adsbygoogle"
                     style="display:block"
                     data-ad-client="ca-pub-4387516810452807"
                     data-ad-slot="8604338277"
                     data-ad-format="auto"
                     data-full-width-responsive="true"></ins>
                <script>
                     (adsbygoogle = window.adsbygoogle || []).push({});
                </script>
            </li>
        </div>
    </div>
</div>

<ul class="suspend">
    <li class="back-top" onclick="backTop()">
        <i class="fa fa-chevron-up"></i>
        <span class="more">返回顶部</span>
    </li>
    <li>
        <a href="http://wpa.qq.com/msgrd?v=3&uin=3162201930&site=qq&menu=yes">
            <i class="fa fa-qq"></i>
            <span class="more">3162201930</span>
        </a>
    </li>
    <li>
        <a href="mailto:czq8825@qq.com">
            <i class="fa fa-envelope"></i>
            <span class="more">czq8825@qq.com</span>
        </a>
    </li>
<!--     <li>
        <i class="fa fa-weixin"></i>
        <span class="more weixin"><img src="https://www.haoziyuan.cc/Uploads/20210427/6087c019e1f1f.jpg" alt="微信二维码"></span>
    </li> -->
</ul>

<footer class="footer clearfix">
    <p>免责声明：网站资源来源于网络，如有侵权，请及时联系删除。</p>
    <p>Copyright © 2026 <a href="/">奈寻味导航网</a>. All Rights Reserved.</p>
    <p>
        <a href="https://beian.miit.gov.cn">蜀ICP备2021004611号-4</a>
        <a href="/sitemap.html">网站地图</a>
        <script charset="UTF-8" id="LA_COLLECT" src="//sdk.51.la/js-sdk-pro.min.js"></script>
<script>LA.init({id:"KzuJqBC7sskDeRpE",ck:"KzuJqBC7sskDeRpE"})</script>    </p>
</footer>
<script src="/Public/Home/js/main.js"></script>
<script type="text/javascript" src="/Public/Home/js/z_stat.js"></script>
</body>
</html>