开始实现使用内部的上传逻辑；

app/common/service/UploadService.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace app\common\service;
+
+use think\facade\Filesystem;
+use think\facade\Validate;
+use think\File;
+
+class UploadService
+{
+
+    protected $uploadType = 'local_public';
+
+    public function __construct($upload_type = 'local_public')
+    {
+        $uploadConfig = sysconfig('upload');
+
+        empty($upload_type) && $upload_type = $uploadConfig['upload_type'];
+
+        $this->uploadType = $upload_type;
+    }
+
+    public function validate($file, $allow_ext = null, $allow_size = null, $fail_exception = false)
+    {
+        $uploadConfig = sysconfig('upload');
+
+        if (!is_null($allow_ext)) {
+            $uploadConfig['upload_allow_ext'] = $allow_ext;
+        }
+
+        if (!is_null($allow_size)) {
+            $uploadConfig['upload_allow_size'] = $allow_size;
+        }
+        
+        $rule = [
+            'upload_type|指定上传类型有误' => "in:{$uploadConfig['upload_allow_type']}",
+            'file|文件'              => "require|file|fileExt:{$uploadConfig['upload_allow_ext']}|fileSize:{$uploadConfig['upload_allow_size']}",
+        ];
+
+        return Validate::failException($fail_exception)->check([
+            'upload_type' => $this->uploadType,
+            'file' => $file
+        ], $rule);
+    }
+
+    public function validateException($file, $allow_ext = null, $allow_size = null)
+    {
+        return $this->validate($file, $allow_ext, $allow_size, true);
+    }
+
+    public function save(File $file)
+    {
+
+
+        $save_name = Filesystem::disk($this->uploadType)->putFile('upload', $file, function () {
+            return date('Ymd') . DIRECTORY_SEPARATOR . uniqid();
+        });
+
+        $url = build_upload_url($save_name);
+
+        return [
+            'url' => $url,
+            'save_name' => $save_name
+        ];
+    }
+}