C#上传图片

//一般处理程序
public void GetImageFromWeb()
{ //创建文件夹 //2016-10-14 dq
string filePath = "~/ProductImage/";
string mapFilePath;
mapFilePath = HttpContext.Current.Server.MapPath(filePath);
if (!Directory.Exists(mapFilePath))
{
Directory.CreateDirectory(mapFilePath);
}
filePath += userEntity.User_ID + "/";
mapFilePath = HttpContext.Current.Server.MapPath(filePath);
if (!Directory.Exists(mapFilePath))
{
Directory.CreateDirectory(mapFilePath);
}
//2016-10-14 注释 dq //写入数据库的路径
string imgUrl = "/ProductImage/" + userEntity.User_ID + "/"; // 图片数据 HttpFileCollection files = System.Web.HttpContext.Current.Request.Files;
string fileName = files[].FileName;
string name = System.IO.Path.GetFileName(fileName);
Stream stream = files[].InputStream;
byte[] bytes = new byte[stream.Length];
stream.Read(bytes, , bytes.Length);
// 设置当前流的位置为流的开始
stream.Seek(, SeekOrigin.Begin);
ResImgUpLoadData entity = WS.UploadImgs(bytes, mapFilePath, name, imgUrl, userEntity); BaseReturn(entity); }
//C#代码
#region 图片上传
/// <summary>
// 功能简述:接口公开方法,图片上传
// 开发文档:无
// 开发团队:新产品组
// 设计:邓
// 分析:邓
// 代码:邓
// 开发时间:2016.3.10
// 代码检查:
// 是否在使用:是
/// <summary>
/// 上传图片
/// </summary>
/// <param name="bytes">图片信息</param>
/// <param name="pFileName">文件夹名称</param>
/// <param name="pImgName">图片名称</param>
/// <param name="pImgPath">写入数据库的图片路径</param>
/// <param name="pUserInfo">操作人</param>
/// <returns></returns>
/// public ProductOnShelvesDML.ResImgUpLoadData UploadImgs(byte[] bytes, string pFileName, string pImgName, string pImgPath, UserDML.UserLoginInfo pUserInfo)
{
return pUploadImgs(bytes, pFileName,pImgName, pImgPath,pUserInfo);
} private ProductOnShelvesDML.ResImgUpLoadData pUploadImgs(byte[] bytes,string pFileName,string pImgName, string pImgPath,UserDML.UserLoginInfo pUserInfo)
{
ProductOnShelvesDML.ResImgUpLoadData objResult=new ProductOnShelvesDML.ResImgUpLoadData();
//V_User_DB_Info objUserDBRes;
//PublicCommonDML.ResComm objResComm;
//Common objCommonDB; //objResult = new ProductOnShelvesDML.ResImgUpLoadData();
//objCommonDB = new Common();
Common objCommonDB = new Common();
PublicCommonDML.ResComm objResComm = new PublicCommonDML.ResComm(); ; try
{
string CommomString = "";//保存连接实体String
// 验证用户信息,并获得连接实体
// 代码:邓奇
// 开发时间:2016-10-17
SYSCEntityDBAddLogic objSYSCEntityDBAddLogic = new SYSCEntityDBAddLogic();
objResComm = objSYSCEntityDBAddLogic.GetUserDBString(pUserInfo.User_ID, pUserInfo.User_PWD);
if (objResComm.ResState == PublicCommonDML.ResFlag.Success)
{
CommomString = objSYSCEntityDBAddLogic.ConectionSring;
}
else
{
objResult.ResComm = objResComm;
return objResult;
} //服务器端创建文件夹并保存在WS端 //string filePath = "myImg";
//string mapFilePath;
//mapFilePath = HttpContext.Current.Server.MapPath(filePath);
//if (!Directory.Exists(mapFilePath))
// Directory.CreateDirectory(mapFilePath);
//filePath += pUserInfo.User_ID + "/";
//mapFilePath = HttpContext.Current.Server.MapPath(filePath);
//if (!Directory.Exists(mapFilePath))
// Directory.CreateDirectory(mapFilePath);
//filePath += pUserInfo.User_ID + "/";
//mapFilePath = HttpContext.Current.Server.MapPath(filePath);
//if (!Directory.Exists(mapFilePath))
// Directory.CreateDirectory(mapFilePath);
// 图片数据
//Stream stream = new MemoryStream(bytes);//数据转换
//MemoryStream ms = new MemoryStream();
//System.Drawing.Image img = System.Drawing.Image.FromStream(stream);
//img.Save(pFileName + pImgName);//保存
//ms.Close();
//string path = mapFilePath + pImgName;
//objResult.ResComm.ResState = PublicCommonDML.ResFlag.Success;
//objResult.ResComm.ResMessage = path;//返回图片路径
//return objResult; ////pFileName-----不需从前端传进,由配置文件设置
//string PhysicalAddress = System.Configuration.ConfigurationSettings.AppSettings["PhysicalAddress"];//存放图片的物理位置以及名称
//pFileName = @PhysicalAddress;
//pFileName += pUserInfo.User_ID + "\\";
//if (!Directory.Exists(pFileName))
//{
// Directory.CreateDirectory(pFileName);//创建文件夹
//}
//string IPAddress = System.Configuration.ConfigurationSettings.AppSettings["IPAddress"];//存放图片的物理位置对应的项目IP //创建文件夹(在一般处理程序完成)并保存在WEB端 //限制图片格式
bool Isimage = false;
string suff = pImgName.Substring(pImgName.LastIndexOf('.'), pImgName.Length - pImgName.LastIndexOf('.')); //获取文件后缀
string[] allowExtension = { ".jpg", ".jpeg", ".gif", ".bmp", ".png", ".JPG", ".JPEG", ".GIF", ".BMP", ".PNG" };
for (int i = ; i < allowExtension.Length; i++)
{
if (suff == allowExtension[i])
{
Isimage = true;
break;
}
else
{ Isimage = false; }
}
if (!Isimage)
{
objResult.ResComm.ResState = PublicCommonDML.ResFlag.Fail;
objResult.ResComm.ResMessage = "图片格式不正确,上传失败";
return objResult;
} // 图片数据
Stream stream = new MemoryStream(bytes);//数据转换
if (stream.Length > ) //1M
{
objResult.ResComm.ResState = PublicCommonDML.ResFlag.Fail;
objResult.ResComm.ResMessage = "图片大小超过1M,上传失败";
return objResult;
}
else
{
MemoryStream ms = new MemoryStream();
System.Drawing.Image img = System.Drawing.Image.FromStream(stream);
string imgName = DateTime.Now.ToString("yyyyMMddHHmmssffff") + suff; //图片名称
img.Save(pFileName + imgName);//保存
ms.Close(); string path = pFileName + imgName;//图片全路径
objResult.ResComm.ResState = PublicCommonDML.ResFlag.Success;
objResult.img_url = pImgPath+imgName;//返回图片相对路径
objResult.ResComm.ResMessage = "上传成功";
} return objResult; }
catch (Exception ex)
{
string strMsg;
string strErrMsg;
strMsg = pUserInfo.User_ID + "\r\n" + pUserInfo.User_PWD + "\r\n" + ACCPCWS.MyCommons.Common.DMLToXML(pImgName.GetType(), pImgName);
strErrMsg = LogLogic.WriteLog(ex, "E100008", strMsg);
if (strErrMsg == "")
{
objResult.ResComm.ResState = PublicCommonDML.ResFlag.Error;
objResult.ResComm.ResMessage = "系统服务器维护中,请稍后重试。";
}
else
{
objResult.ResComm.ResState = PublicCommonDML.ResFlag.SysErrorMsg;
objResult.ResComm.ResMessage = strErrMsg;
}
} return objResult;
} #endregion
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