thinkphp缩略图

<?php
 class IndexAction extends Action {
    public function index() {
        $Photo = M('Photo');
        $list = $Photo->order('create_time desc')->limit(2)->select();
        $this->assign('list', $list);
        $this->display();
    }
    public function upload() {
        if (!empty($_FILES)) {
            //如果有文件上传 上传附件
            $this->_upload();
            //$this->forward();
        }
    }
    // 文件上传
    protected function _upload() {
        //我用的是ORG.Net.UploadFile
        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 = '/thinkphp/examples/File/Tpl/Public/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 我用的是ORG.Util.UploadFile
        $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
        $upload->thumbRemoveOrigin = true;
        if (!$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 = $upload->getUploadFileInfo();
            //ORG.Util.UploadFile
            import("@.ORG.Image");
            //给m_缩略图添加水印, Image::water('原文件名','水印图片地址')
            Image::water($uploadList[0]['savepath'] . 'm_' . $uploadList[0]['savename'], '/thinkphp/examples/File/Tpl/Public/Images/logo2.png');
            $_POST['image'] = $uploadList[0]['savename'];
        }
        $model = M('Photo');
        //保存当前数据对象
        $data['image'] = $_POST['image'];
        $data['create_time'] = 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!');
        }
    }
 }
 ?>