thinkphp实现图片上传功能分享

ThinkPHP  /  管理员 发布于 8年前   182

    class ImageAction extends Action{       

        /**
         * 创建index 入口方法
         */
        public function index(){
            $image=M('Image');                       
            $data=$image->order('create_time desc')->find();    //获取最后上传图片

            var_dump($data);
            $this->assign('data',$data);
            $this->display();
        }

       
        //如果上传的文件不为空,跳转到_upload方法
        public function upload(){       
            //如果不为空
            if(!empty($_FILES))
            {
                $this->_upload();
            }

        }

       
        /***
         * 实现图片上传
         */
        public function _upload(){
            import('@.ORG.UploadFile');
            //导入上传类
            $upload = new UploadFile();
            //设置上传文件大小
            $upload->maxSize            = 3292200;
            //设置上传文件类型
            $upload->allowExts          = explode(',', 'jpg,gif,png,jpeg');
            //设置附件上传目录
            $upload->savePath           = './Uploads/';
            //设置需要生成缩略图，仅对图像文件有效
            $upload->thumb              = true;
            // 设置引用图片类库包路径
            $upload->imageClassPath     = '@.ORG.Image';
            //设置需要生成缩略图的文件后缀
            $upload->thumbPrefix        = 'm_,s_';  //生产2张缩略图
            //设置缩略图最大宽度
            $upload->thumbMaxWidth      = '400,100';
            //设置缩略图最大高度
            $upload->thumbMaxHeight     = '400,100';
            //设置上传文件规则
            $upload->saveRule           = 'uniqid';
            //删除原图
            $upload->thumbRemoveOrigin  = true;

           
            //如果上传不成功
            if (!$upload->upload())
            {
                //捕获上传异常
                $this->error($upload->getErrorMsg());
            }
            else
            {
                //取得成功上传的文件信息
                $uploadList = $upload->getUploadFileInfo();

               
                //导入图片类
                import('@.ORG.Image');               

                //给m_缩略图添加水印, Image::water('原文件路径','水印图片地址')
                Image::water($uploadList[0]['savepath'] . 'm_' . $uploadList[0]['savename'], APP_PATH.'Tpl/Public/Images/logo.png');

                //图片名赋值给 字段image
                $_POST['image'] = $uploadList[0]['savename'];
            }
            $model  = M('image');
            //保存当前数据对象
            $data['image']          = $_POST['image'];
            $data['create_time']    = NOW_TIME;
            $list   = $model->add($data);
            if ($list !== false)
            {
                $this->success('上传图片成功！');
            }
            else
            {
                $this->error('上传图片失败!');
            }
        }       
    }
?>