问题描述

求解文件上传的路径问题

///
/// 上传文件
///
/// 上传Token
/// key
/// 本地文件名
public CallRet PutFile(string upToken string localFile string key)
{
if (!File.Exists(localFile))
{
throw new Exception(string.Format(""{0} does not exist"" localFile));
}

        PutAuthClient client = new PutAuthClient(upToken);        CallRet ret;        using (FileStream fs = File.OpenRead(localFile))        {            int block_cnt = block_count(fs.Length);            long fsize = fs.Length;            extra.Progresses = new BlkputRet[block_cnt];            byte[] byteBuf = new byte[BLOCKSIZE];            int readLen = BLOCKSIZE;            for (int i = 0; i < block_cnt; i++)            {                if (i == block_cnt - 1) {                     readLen = (int)(fsize - (long)i * BLOCKSIZE);                }                fs.Seek((long)i * BLOCKSIZE SeekOrigin.Begin);                fs.Read(byteBuf 0 readLen);                BlkputRet blkRet = ResumableBlockPut(client byteBuf i readLen);                if (blkRet == null)                {                    extra.OnNotifyErr(new PutNotifyErrorEvent(i readLenMake Block Error""));                }                else                {                    extra.OnNotify(new PutNotifyEvent(i readLen extra.Progresses[i]));                }            }            ret = Mkfile(client key fsize);        }        if (ret.OK)        {            if (PutFinished != null)            {                PutFinished(this ret);            }        }        else        {            if (PutFailure != null)            {                PutFailure(this ret);            }        }        return ret;    }

参数localfile应该是文件的绝对路径，如果用input：file 上传，后台怎么获取上传文件的绝对路径赋给这个参数啊？

解决方案

一些浏览器不会发送上传路径，而且客户端的路径对你来说也没有意义。