public function avatarUpload()
{
$file = request()->file('file');
$filePath = 'avatar';
$width = 200;
$height = 200;
if($file){
$filePaths = ROOT_PATH . 'public' . DS . 'uploads' . DS .$filePath;
if(!file_exists($filePaths)){
mkdir($filePaths,0777,true);
}
$info = $file->move($filePaths);
if($info){
$imgpath = $filePaths . '/' . $info->getSaveName();
$image = \think\Image::open($imgpath);
$image->thumb($width, $height)->save($imgpath);
$imgpath = '/uploads/'.$filePath.'/'.$info->getSaveName();
$data = [
'domain' => $_SERVER['HTTP_HOST'],
'filepath' => $imgpath,
];
return ['code' => 0, 'data' => $data, 'msg' => '上传成功'];
}else{
// 上传失败获取错误信息
return ['code' => -1, 'data' => '', 'msg' => '上传失败'];
}
}
}

  

<!DOCTYPE html>
<html>
<head>
<title> </title> <script src="js/jquery-2.1.1.min.js" type="text/javascript"></script>
</head> <body>
  <input type="file" name="file" onchange="fileup(event)"/>   <script type="text/javascript">     function fileup(e){
      var formData = new FormData();
      formData.append('file', e.target.files[0]);
      $.ajax({
        url: 'http://xxxxx.com/api/User/avatarUpload',
        type: 'POST',
        cache: false,
        data: formData,
        processData: false,
        contentType: false
      }).done(function(res) {
        console.log(res.data.domain);
        console.log(res.data.filepath);
      }).fail(function(res) {     });
  }   </script>
</body>
</html>