diff --git a/src/Constrict/ConstrictRequest.php b/src/Constrict/ConstrictRequest.php
index adcc476..a3dc963 100644
--- a/src/Constrict/ConstrictRequest.php
+++ b/src/Constrict/ConstrictRequest.php
@@ -64,19 +64,22 @@ class ConstrictRequest extends Message implements RequestInterface, ServerReques
 
     /**
      * @param string $name
-     * @return array|null
+     * @return File|null
      */
-    #[ArrayShape(['name' => 'string', 'type' => 'string', 'tmp_name' => 'string', 'error' => 'int', 'size' => 'int'])]
-    public function file(string $name): ?array
+    public function file(string $name): ?File
     {
-        return $this->files[$name] ?? null;
+        if (isset($this->files[$name])) {
+            return new File($this->files[$name]);
+        } else {
+            return null;
+        }
     }
 
 
     /**
      * @return bool
      */
-    public function getIsPost(): bool
+    public function isPost(): bool
     {
         return $this->method === 'POST';
     }
diff --git a/src/Constrict/File.php b/src/Constrict/File.php
new file mode 100644
index 0000000..7a291c4
--- /dev/null
+++ b/src/Constrict/File.php
@@ -0,0 +1,154 @@
+<?php
+
+namespace Kiri\Router\Constrict;
+
+use Exception;
+use Kiri;
+
+class File
+{
+
+
+    private string $name;
+    private string $tmp_name;
+    private int    $error;
+    private string $type;
+    private int    $size;
+    private int    $limit  = 1024000;
+    private int    $offset = 0;
+
+
+    /**
+     * @param array $array
+     */
+    public function __construct(array $array)
+    {
+        $this->name     = $array['name'];
+        $this->tmp_name = $array['tmp_name'];
+        $this->error    = $array['error'];
+        $this->type     = $array['type'];
+        $this->size     = $array['size'];
+    }
+
+    const array  errorInfo = [
+        0 => 'UPLOAD_ERR_OK.',
+        1 => 'The uploaded file exceeds the upload_max_filesize directive in php.ini.',
+        2 => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.',
+        3 => 'The uploaded file was only partially uploaded.',
+        4 => 'No file was uploaded.',
+        6 => 'Missing a temporary folder.',
+        7 => 'Failed to write file to disk.',
+        8 => 'A PHP extension stopped the file upload.'
+    ];
+
+    /**
+     * @param string $path
+     * @return bool
+     * @throws
+     */
+    public function saveTo(string $path): bool
+    {
+        if ($this->hasError()) {
+            throw new Exception($this->getErrorInfo());
+        }
+
+        @move_uploaded_file($this->tmp_name, $path);
+        if (!file_exists($path)) {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * @return string
+     * @throws
+     */
+    public function rename(): string
+    {
+        if (!empty($this->newName)) return $this->newName;
+        if (!file_exists($this->getTmpPath())) {
+            throw new Exception('(' . $this->name . ')Failed to open stream: No such file or directory');
+        }
+
+        $hash = md5_file($this->getTmpPath());
+
+        $later = '.' . exif_imagetype($this->getTmpPath());
+
+        $match = '/(\w{12})(\w{5})(\w{9})(\w{6})/';
+        $tmp   = preg_replace($match, '$1-$2-$3-$4', $hash);
+
+        return $this->name = strtoupper($tmp) . $later;
+    }
+
+    /**
+     * @return string
+     */
+    public function getType(): string
+    {
+        return $this->type;
+    }
+
+
+    /**
+     * @return int
+     */
+    public function getSize(): int
+    {
+        return $this->size;
+    }
+
+
+    /**
+     * @return string
+     * @throws
+     */
+    public function getContent(): string
+    {
+        $open    = fopen($this->getTmpPath(), 'r');
+        $content = '';
+        while ($file = fread($open, $this->limit)) {
+            $content .= $file;
+            fseek($open, $this->offset);
+            if ($this->offset >= $this->getSize()) {
+                break;
+            }
+            $this->offset += $this->limit;
+        }
+        fclose($open);
+        $this->offset = 0;
+        return $content;
+    }
+
+
+    /**
+     * @return string
+     */
+    public function getTmpPath(): string
+    {
+        return $this->tmp_name;
+    }
+
+    /**
+     * @return bool
+     *
+     * check file have error
+     */
+    public function hasError(): bool
+    {
+        return $this->error !== 0;
+    }
+
+    /**
+     * @return mixed
+     *
+     * get upload error info
+     */
+    public function getErrorInfo(): mixed
+    {
+        if (!isset(self::errorInfo[$this->error])) {
+            return 'Unknown upload error.';
+        }
+        return self::errorInfo[$this->error];
+    }
+
+}
\ No newline at end of file
diff --git a/src/Request.php b/src/Request.php
index 295bb84..ce1808b 100644
--- a/src/Request.php
+++ b/src/Request.php
@@ -3,9 +3,9 @@ declare(strict_types=1);
 
 namespace Kiri\Router;
 
-use JetBrains\PhpStorm\ArrayShape;
 use Kiri\Router\Base\AuthorizationInterface;
 use Kiri\Router\Base\ExceptionHandlerDispatcher;
+use Kiri\Router\Constrict\File;
 use Psr\Http\Message\RequestInterface;
 use Psr\Http\Message\ServerRequestInterface;
 use Psr\Http\Message\StreamInterface;
@@ -647,10 +647,9 @@ class Request implements ServerRequestInterface
 
     /**
      * @param string $name
-     * @return array|null
+     * @return File|null
      */
-    #[ArrayShape(['name' => 'string', 'type' => 'string', 'tmp_name' => 'string', 'error' => 'int', 'size' => 'int'])]
-    public function file(string $name): ?array
+    public function file(string $name): ?File
     {
         return $this->__call__(__FUNCTION__, $name);
     }
@@ -659,7 +658,7 @@ class Request implements ServerRequestInterface
     /**
      * @return bool
      */
-    public function getIsPost(): bool
+    public function isPost(): bool
     {
         return $this->getMethod() == 'POST';
     }
diff --git a/src/Validator/Validator.php b/src/Validator/Validator.php
index d6412c5..dffba00 100644
--- a/src/Validator/Validator.php
+++ b/src/Validator/Validator.php
@@ -97,7 +97,7 @@ class Validator
         if (!empty($this->message)) {
             return false;
         }
-        $params = !$request->getIsPost() ? $request->getQueryParams() : $request->getParsedBody();
+        $params = !$request->isPost() ? $request->getQueryParams() : $request->getParsedBody();
 
         foreach ($params as $name => $value) {
             if (!isset($this->types[$name])) {