上传图片时，需注意事项
来源：互联网 发布：淘宝详情页文字大小 编辑：程序博客网 时间：2024/06/05 08:47
/** * 后台上传图片 * type 1 为小程序图片 */ public function actionAdd(){ if($_FILES && $_FILES["image"]['name']){ $request = Yii::$app->request; $root = '/mnt/tmpfile/static/'; $source_name = $_FILES["image"]['name']; $image_ext = explode('.',$source_name); if($request->post('type',0) == 1){ //保存的目录 $path = $root.'app/'.date('Ymd'); }else{ $dir_name = $request->post('dir_name',date('Ymd')); $path = $root.$dir_name; } if(!is_dir($path)){ mkdir($path,0777,true); } $file_name = date('YmdHis').'.'.$image_ext[1]; $flag = move_uploaded_file($_FILES["image"]['tmp_name'],$path.'/'.$file_name); if($flag){ $img_dir =str_replace('/mnt/tmpfile',$this->host,$path); Yii::$app->db->createCommand()->insert($this->table_name,[ 'name'=>$request->post('name',''), 'type'=>$request->post('type',1), 'url_big'=>$img_dir.'/'.$file_name, 'add_time'=>time(), 'source_name'=>$source_name ])->execute(); $this->redirect(Url::to(['index'])); }else{ throw new Exception('上传失败~'); } } return $this->render('add'); } /** * 刪除 * @param $id * @return bool or string */ public function actionDel($id){ $id = Yii::$app->request->get('id',0); if(!$id){ echo json_encode(['status'=>0,'message'=>'无该数据']);exit; } $mess = ['status'=>0,'message'=>'删除失败~']; $curInfo = Yii::$app->db->createCommand("select * from ".$this->table_name.' where id ='.$id)->queryOne(); $image = str_replace($this->host,'/mnt/tmpfile',$curInfo['url_big']); $res = unlink($image);//注意，删除的链接格式/mnt/tmpfile/20160503344/tete.png if($res){ $flag = Yii::$app->db->createCommand()->delete($this->table_name,['id'=>$id])->execute(); if($flag){ $mess = ['status'=>1,'message'=>'删除成功~']; } } echo json_encode($mess);exit; }<!-- 引入js--><script src="/js/bootstrap-fileinput.js"></script><!-- 引入css --><style> .btn-file { position: relative; overflow: hidden; vertical-align: middle; } .btn-file > input { position: absolute; top: 0; right: 0; width: 100%; height: 100%; margin: 0; font-size: 23px; cursor: pointer; filter: alpha(opacity=0); opacity: 0; direction: ltr; } .fileinput { display: inline-block; margin-bottom: 9px; } .fileinput .form-control { display: inline-block; padding-top: 7px; padding-bottom: 5px; margin-bottom: 0; vertical-align: middle; cursor: text; } .fileinput .thumbnail { display: inline-block; margin-bottom: 5px; overflow: hidden; text-align: center; vertical-align: middle; } .fileinput .thumbnail > img { max-height: 100%; } .fileinput .btn { vertical-align: middle; } .fileinput-exists .fileinput-new, .fileinput-new .fileinput-exists { display: none; } .fileinput-inline .fileinput-controls { display: inline; } .fileinput-filename { display: inline-block; overflow: hidden; vertical-align: middle; } .form-control .fileinput-filename { vertical-align: bottom; } .fileinput.input-group { display: table; } .fileinput.input-group > * { position: relative; z-index: 2; } .fileinput.input-group > .btn-file { z-index: 1; } .fileinput-new.input-group .btn-file, .fileinput-new .input-group .btn-file { border-radius: 0 4px 4px 0; } .fileinput-new.input-group .btn-file.btn-xs, .fileinput-new .input-group .btn-file.btn-xs, .fileinput-new.input-group .btn-file.btn-sm, .fileinput-new .input-group .btn-file.btn-sm { border-radius: 0 3px 3px 0; } .fileinput-new.input-group .btn-file.btn-lg, .fileinput-new .input-group .btn-file.btn-lg { border-radius: 0 6px 6px 0; } .form-group.has-warning .fileinput .fileinput-preview { color: #8a6d3b; } .form-group.has-warning .fileinput .thumbnail { border-color: #faebcc; } .form-group.has-error .fileinput .fileinput-preview { color: #a94442; } .form-group.has-error .fileinput .thumbnail { border-color: #ebccd1; } .form-group.has-success .fileinput .fileinput-preview { color: #3c763d; } .form-group.has-success .fileinput .thumbnail { border-color: #d6e9c6; } .input-group-addon:not(:first-child) { border-left: 0; }</style><form class="form-horizontal" role="form" method="post" action="<?=Url::to(['add'])?>" enctype='multipart/form-data' > <ul class="breadcrumb"> <li><a href="#">首页</a></li> <li><a href="#">系统设置</a></li> <li class="active">上传图片</li> <a href="<?=Url::to(['index'])?>" class="btn btn-primary btn-sm pull-right">返回</a> </ul> <div class="form-group"> <label for="name" class="col-sm-2 control-label">名称</label> <div class="col-sm-5"> <input type="text" class="form-control" name="name" placeholder="自定义名称"> </div> </div> <div class="form-group"> <label for="name" class="col-sm-2 control-label">分类</label> <div class="col-sm-5"> <select name="type" class="form-control"> <option value="0">请选择..</option> <option value="1">小程序</option> <option value="2">其他</option> </select> </div> </div> <div class="form-group " style="display:none;" id="dir_name" > <div class="col-sm-offset-2 col-sm-10">保存的目录: <input type="text" name="dir_name" value=""> </div> </div> <div class="form-group" id="uploadForm" enctype="multipart/form-data"> <div class="col-sm-offset-2 col-sm-10"> <div class="h4">图片预览</div> <div class="fileinput fileinput-new" data-provides="fileinput" id="exampleInputUpload"> <div class="fileinput-new thumbnail" style="width: 200px;height: auto;max-height:150px;"> <img id="picImg" style="width: 100%;height: auto;max-height: 140px;" src="data:image/svg+xml;base64,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" alt=""> </div> <div class="fileinput-preview fileinput-exists thumbnail" style="max-width: 200px; max-height: 150px;"></div> <div> <span class="btn btn-primary btn-file"> <span class="fileinput-new">选择文件</span> <span class="fileinput-exists">换一张</span> <input type="file" name="image" id="picID" accept="image/gif,image/jpeg,image/x-png"> </span> <a href="javascript:;" class="btn btn-warning fileinput-exists" data-dismiss="fileinput">移除</a> </div> </div> </div> </div> <div class="form-group"> <div class="col-sm-offset-2 col-sm-10"> <button type="submit" class="btn btn-success">提交</button> </div> </div></form><script> $(".btn-success").click(function () { var name = $('input[name="name"]').val(); if(name =='' || name == undefined){ alert('名称不能为空..') return false; } $('form[role="form"]').submit(); }) $('select[name="type"]').change(function () { var value = $('select[name="type"] option:selected').val(); if(value==2){ $('#dir_name').attr('style','display:block;'); }else{ $('#dir_name').attr('style','display:none;'); } })</script>阅读全文
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