三层架构

Question

看不清直接上传代码不好 上传个这么大的图片。。

Answer 1

namespace ProjectManager.BLL.LM.EM
{   
    /// <summary>
    /// EmployeeOperate
    /// </summary>
    public class EmployeeOperate : IEmployeeOperate
    {
        private const string PAGEID = "EmployeeOperate";        #region EmployeeOperate Members       
        public  DataSet GetEmployeeInfoList()
        {
            try
            {
                return DbHelper.ExecuteDataSet(PAGEID, "Sql001");
            }
            catch (Exception ex)
            {
                Handler.WriteErrorLog(ex.ToString());
                throw ;
            }        }
       
        public void InsertEmployee(Entity_HX_EMPLOYEE obj, Entity_HX_ROLE obj1)
        {            Database dbKanban = null;
            DbConnection con = null;
            DbTransaction trans = null;            ArrayList paramlist = Handler.GetParamList(obj); 
            ArrayList paramlist1 = Handler.GetParamList(obj1);            //remove param id 
            paramlist1.RemoveAt(0);
            try
            {
                dbKanban = DatabaseFactory.CreateDatabase();
                con = dbKanban.CreateConnection();
                con.Open();
                trans = con.BeginTransaction();
                DbHelper.ExecuteNonQuery(PAGEID, "Sql002", paramlist);
                DbHelper.ExecuteNonQuery(PAGEID, "Sql005", paramlist1);
                trans.Commit();
            }
            catch(SqlException ex)
            {
                trans.Rollback(); 
                if (ex.ErrorCode == -2146232060)
                {
                    throw new ThrowSoapException().GetSoapExceptionInstance(ex.Message, BusinessConst.EXCEPTION_PRIMARY_REPEAT);
                } 
            }            //Save Employee Logo To Server
            UpLoadEmployeeLogo(paramlist);            //UpdateEmployeeImage 
           // UpdateEmployeeImage(paramlist); 
        }        private void UpLoadEmployeeLogo(ArrayList paramlist)
        {            byte[] imgLogo = paramlist[paramlist.Count - 2] as byte[]; 
            string filePath = HttpContext.Current.Server.MapPath(".") + "\\Logo\\";
            if (!Directory.Exists(filePath))
            {
                Directory.CreateDirectory(filePath);
            }
            string employeeId = paramlist[0] as string;
            string fileName = filePath + employeeId + ".jpg";
            if (File.Exists(fileName))
            {
                FileInfo fn = new FileInfo(fileName);
                if (fn.IsReadOnly)
                {
                    fn.IsReadOnly = false;
                }
            } 
            File.WriteAllBytes(fileName, imgLogo);            
        }

Answer 2

不会每句都要解释吧，还是？