/// <summary>
/// 下载文件
/// </summary>
/// <param name="userInfo">用户</param>
/// <param name="id">主键</param>
/// <returns>文件</returns>
public byte[] Downloads(BaseUserInfo userInfo, string id)
{
byte[] result = null;
var parameter = ServiceInfo.Create(userInfo, MethodBase.GetCurrentMethod());
ServiceUtil.ProcessUserCenterReadDb(userInfo, parameter, (dbHelper) =>
{
var manager = new BaseFileManager(dbHelper, userInfo);
if (BaseSystemInfo.UploadStorageMode == "Disk")
{
manager.UpdateReadCount(id); // 阅读次数要加一
BaseFileEntity entity = manager.GetObject(id);
System.IO.FileStream fs = null;
//建立二进制读取
System.IO.BinaryReader br = null;
fs = new FileStream(entity.FilePath + entity.FileName, System.IO.FileMode.Open);
br = new BinaryReader((Stream)fs);
result = br.ReadBytes((int)fs.Length);
br.Close();
fs.Close();
}
else
{
result = manager.Download(id);
}
});
return(result);
}
/// <summary>
/// 下载文件
/// </summary>
/// <param name="userInfo">用户</param>
/// <param name="id">主键</param>
/// <returns>文件</returns>
public byte[] Download(BaseUserInfo userInfo, string id)
{
byte[] result = null;
var parameter = ServiceInfo.Create(userInfo, MethodBase.GetCurrentMethod());
ServiceUtil.ProcessUserCenterReadDb(userInfo, parameter, (dbHelper) =>
{
var manager = new BaseFileManager(dbHelper, userInfo);
result = manager.Download(id);
});
return(result);
}
/// <summary>
/// 下载文件
/// </summary>
/// <param name="userInfo">用户</param>
/// <param name="id">主键</param>
/// <returns>文件</returns>
public byte[] Download(BaseUserInfo userInfo, string id)
{
// 写入调试信息
#if (DEBUG)
int milliStart = BaseBusinessLogic.StartDebug(userInfo, MethodBase.GetCurrentMethod());
#endif
// 加强安全验证防止未授权匿名调用
#if (!DEBUG)
LogOnService.UserIsLogOn(userInfo);
#endif
byte[] returnValue = null;
using (IDbHelper dbHelper = DbHelperFactory.GetHelper(BaseSystemInfo.UserCenterDbType))
{
try
{
dbHelper.Open(UserCenterDbConnection);
BaseFileManager fileManager = new BaseFileManager(dbHelper, userInfo);
returnValue = fileManager.Download(id);
BaseLogManager.Instance.Add(dbHelper, userInfo, this.serviceName, AppMessage.FileService_Download, MethodBase.GetCurrentMethod());
}
catch (Exception ex)
{
BaseExceptionManager.LogException(dbHelper, userInfo, ex);
throw ex;
}
finally
{
dbHelper.Close();
}
}
// 写入调试信息
#if (DEBUG)
BaseBusinessLogic.EndDebug(MethodBase.GetCurrentMethod(), milliStart);
#endif
return(returnValue);
}