Web Api 实现文件上传

网上找了好久，国内关于Web Api的资料少之又少，园区里面有一篇文章介绍的很详细，可惜是在4.5的环境下实现的：

 

/// <summary>
/// 文件上传
/// </summary>
public class UploadController : BaseController
{ 
　　 [HttpPost]
    public Ret<object> PostUpload()
    {
        var httpRequest = HttpContext.Current.Request;
        List<string> list = new List<string>();

        for (int i = 0; i < httpRequest.Files.Count; i++)
        {
            var file = httpRequest.Files[i];
            if (file.ContentLength < 1 || file == null) continue;
            //文件存盘,返回Url
            list.Add(V9.Helper.Attach.Save(file));
        }
        return new Ret<object>() { error = 0, msg = "上传成功！", data = list };
    }
}