yyky/application/api/controller/Fileoper.php

<?php

/**
 * Created by PhpStorm.
 * User: sicilon_IT
 * Date: 2020/1/5
 * Time: 9:49
 */

namespace app\api\controller;

use think\Controller;
use think\Log;
use think\Request;

class Fileoper extends Controller
{
    private function filterfiletype($usefile = "file")
    {
        $filetype = $_FILES[$usefile]['type'];
        $types = [
            'image',
            'excel',
        ];
        $filetypeuse = "*" . $filetype;
        $iscanupload = false;
        foreach ($types as $key => $value) {
            if (strpos($filetypeuse, $value)) {
                $iscanupload = true;
            }
        }
        if (!$iscanupload) {
            log::info($_FILES);
            $msg = "file type error: " . $filetype;
            log::info($msg);
            $this->error($msg);
        }
    }

    /**
     * 指定文件位置上传
     *
     * @return void
     */
    public function uploadfilebydir()
    {
        //log::info($_FILES);
        $this->filterfiletype();
        // 获取表单上传文件
        $file = request()->file('file');
        if (empty($file)) {
            $this->error('请选择上传文件');
        }
        $defaultdir = 'Uploads' . '/';
        $dir = request()->param('dir') ? request()->param('dir') : request()->post('dir');
        $filename = request()->param('filename') ? request()->param('filename') : request()->post('filename');
        if ($dir) {
            if (!preg_match("/^[a-z0-9]{1,20}$/", $dir)) {
                $this->error('请求错误');
            }
            $dir = $defaultdir . $dir;
        } else {
            $dir = $defaultdir;
        }
        $domainpath = 'http://' . $_SERVER['HTTP_HOST'] . '/' . $dir . '/';
        // 移动到框架应用根目录/public/uploads/ 目录下
        if (!empty($filename)) {
            $file = $file->move(ROOT_PATH . 'public' . '/' . $dir, $filename);
        } else {
            $file = $file->move(ROOT_PATH . 'public' . '/' . $dir);
        }
        //如果不清楚文件上传的具体键名，可以直接打印$info来查看
        //获取文件（文件名），$info->getFilename()  ***********不同之处，笔记笔记哦
        //获取文件（日期/文件名），$info->getSaveName()  **********不同之处，笔记笔记哦
        $filename = $file->getSaveName();
        $filename = str_replace(DS, "/", $filename);
        if ($filename) {
            //$this->success('文件上传成功！');
            $imageUrl = $domainpath . $filename;
            $r_upload['code'] = '200';
            $r_upload['resultData'] = $imageUrl;
            //不转义反斜杠
            return json_encode($r_upload, 320);
        } else {
            // 上传失败获取错误信息
            $this->error($file->getError());
        }
    }
}