Html:

<form enctype="multipart/form-data" >
	<label>標題：</label>
	<input type="text" class="input-text" value="" id="title" required>
	<label>圖片上傳：</label>
	<input type="file" id="img" >
	<button id="submit"  type="submit"> 提交</button>
</form>

JS:

$('#submit').click(function(){
		var from = new FormData();
		var title=$('#title').val();
		var img=$('#img').get(0).files[0];
		    from.append("file", img);
		    from.append("title",title);
		    $.ajax({
		        type: 'post',
		        url:"{:url('admin/map/upload')}",
		        data:from,
		        dataType:'json',
		        contentType: false,
		        processData: false,
		        success: function (data) {
                	if(data.status==1){
                		alert(data.message);
                	}else{
                		alert(data.message);
                	}
		        }
		    });
		    return false;
	})
 

TP5:

public function upload(){
        //    
		$file=request()->file('file');
		$title=request()->param('title');
	    $info = $file->move(ROOT_PATH . 'public' . DS . 'uploads');
	    if($info){
	        $mapData= new MapModel;
	        $mapData->img='/uploads/'.$info->getSaveName();
	        $mapData->title=$title;
	       	$result=$mapData->save();
            //上傳成功資訊
	       	return ['status'=>1,'message'=>"上傳成功"];
	    }else{
	        // 上傳失敗獲取錯誤資訊
	        return ['status'=>0,'message'=> $file->getError()];
	    }
	}