/// <summary>
/// 提供保存图片方法
/// </summary>
/// <param name="imageByte">图片byte字节</param>
/// <param name="folderName">文件夹</param>
/// <param name="extName">后缀名{jpg,png}....</param>
/// <param name="oldImageName">旧的文件名遇到default时跳过</param>
/// <param name="tcp">tcp.CustomerId</param>
/// <returns>图片名称</returns>
internal string SaveImage(byte[] imageByte, string folderName, string extName, string oldImageName, TokenCacheProperty tcp)
{
string filePath = string.Empty;
// 检查存放图片的目录是否存在，不存在则创建
var path = string.Format(@"{0}\{1}", AppDomain.CurrentDomain.BaseDirectory, folderName);
Directory.CreateDirectory(path);
// 生成随机且唯一的image文件名，将数据保存
string imageFile = string.Format("{0}_{1}.{2}",
PwdMD5.StringToMD5(DateTime.Now.ToString()), tcp.CustomerId, extName);
// 打开文件，写入图片数据
filePath = string.Format(@"{0}\{1}", path, imageFile);
FileStream fs = new System.IO.FileStream(filePath, FileMode.Create, FileAccess.Write);
fs.Write(imageByte, 0, imageByte.Length);
fs.Close();
if (!oldImageName.ToLower().Contains("default"))
{
File.Delete(path + "\\" + oldImageName);
}
return(imageFile);
}
/// <summary>
/// 修改通道的默认图片
/// </summary>
/// <param name="channelId">通道的id</param>
/// <param name="imageByte">图片的二进制数据</param>
/// <param name="extName">图片扩展名</param>
/// <param name="customerToken">用户的token</param>
/// <returns></returns>
public ResponseBaseDto UpdateChanneImagePathlByChannelId(int channelId,
byte[] imageByte, string extName, string customerToken, ref string imagePath)
{
ResponseBaseDto dto = new ResponseBaseDto();
UserTokenCache utc = UserTokenCache.GetInstance();
TokenCacheProperty tcp = new TokenCacheProperty();
OperaterLog oLog = new OperaterLog();
oLog.Action = "更新通道图片";
oLog.TargetId = channelId;
try
{
if (utc.IsValid(customerToken) == false)
{
dto.Code = (int)CodeEnum.ServerNoToken;
dto.Message = "用户token已失效，请重新登录后继续";
return(dto);
}
dto = bllHelper.CheckCustomer(dto, customerToken, ref tcp);
if (dto.Code != 0)
{
oLog.TargetType = (int)OperaterLogEnum.Channel;
oLog.Remarks = dto.Message;
oLog.Result = dto.Code;
bllHelper.AddOperaterLog(oLog, tcp);
return(dto);
}
else
{
//大图（源图）
//检查存放源图片的目录是否存在，不存在则创建
var bigImagePath = string.Format(@"{0}\channelImage", AppDomain.CurrentDomain.BaseDirectory);
Directory.CreateDirectory(bigImagePath);
//小图（封面）
//检查存放图片的目录是否存在，不存在则创建
var smallImagepath = string.Format(@"{0}\channelImage\small", AppDomain.CurrentDomain.BaseDirectory);
Directory.CreateDirectory(smallImagepath);
//生成随机且唯一的image文件名，将数据保存
string imageFile = string.Format("{0}_{1}.{2}",
PwdMD5.StringToMD5(DateTime.Now.ToString()), channelId, extName);
//打开文件，写入图片数据
string bigImageFullPath = string.Format(@"{0}\{1}", bigImagePath, imageFile);
string smallImageFullPath = string.Format(@"{0}\{1}", smallImagepath, imageFile);
FileStream bigfs = new System.IO.FileStream(bigImageFullPath, FileMode.Create, FileAccess.Write);
bigfs.Write(imageByte, 0, imageByte.Length);
bigfs.Close();
#region 将图片进行尺寸的压缩
byte[] dstImageByte;
ImageConvertibleInfo icInfo = new ImageConvertibleInfo();
icInfo.srcByte = imageByte;
icInfo.dstWidth = 320; // 目标图片像素宽
icInfo.dstHeight = 240; // 目标图片像素高
icInfo.dstFmt = extName; // 目标图片格式
int rs = 0;
if ((rs = ImageConvertion.Convert(icInfo, out dstImageByte)) != 0)
{
myLog.WarnFormat("图片压缩成{0}失败，错误码：{1}", icInfo.dstFmt, rs);
}
else
{
imageByte = dstImageByte; // 将压缩后的图片数据重新赋给imageByte
}
#endregion
FileStream smallfs = new System.IO.FileStream(smallImageFullPath, FileMode.Create, FileAccess.Write);
smallfs.Write(dstImageByte, 0, imageByte.Length);
smallfs.Close();
// 通过通道的id找到数据库记录，将文件名更新
Channel channel = new Channel()
{
ChannelId = channelId
};
IList <Channel> channelFlag = channelServer.SelectChannelByChannelId(channel);
if (channelFlag == null)
{
dto.Code = (int)CodeEnum.NoHardWare;
dto.Message = "需要修改的通道不存在";
}
else
{
// 将原来指向的文件名删除。
// 如果是默认的文件名则不做删除。
if (channelFlag[0].ImagePath != null && !channelFlag[0].ImagePath.Contains("default"))
{
File.Delete(bigImagePath + "\\" + channelFlag[0].ImagePath);
File.Delete(smallImagepath + "\\" + channelFlag[0].ImagePath);
}
channelFlag[0].ImagePath = imageFile;
channelServer.UpdateChannel(channelFlag[0]);
dto.Code = 0;
dto.Message = "修改通道图片完成！";
// 返回的图片路径是: "channelImage/图片名.jpg"
imagePath = string.Format(@"channelImage/{0}", imageFile);
}
}/*end if(utc.IsValid(customerToken) == false)*/
}
catch (Exception ex)
{
dto.Code = (int)CodeEnum.ApplicationErr;
dto.Message = "网络异常，请刷新页面后继续";
myLog.WarnFormat("UpdateChanneImagePathlByChannelId方法异常,通道id:{0}", ex, channelId);
}
oLog.TargetType = (int)OperaterLogEnum.Channel;
oLog.Remarks = dto.Message;
oLog.Result = dto.Code;
bllHelper.AddOperaterLog(oLog, tcp);
return(dto);
}
