SCPFWBTL/UniApiGroup/Controller/MailController.cs

using ChangKeTec.Wms.Models.Wms;
using CK.SCP.Common;
using CK.SCP.Models;
using CK.SCP.Models.AppBoxEntity;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;

namespace CK.SCP.UniApi.Controller
{
    public static class MailController
    {
        public class MailVend
        {
            public string Email { get; set; }
            public string VendId { get; set; }
        }
        public static void GetNewCtrlList()
        {
            AppBoxContext idb = EntitiesFactory.CreateAppBoxInstance();
            WmsEntities wmsdb = EntitiesFactory.CreateWmsInstance();
            StringBuilder _buffer = new StringBuilder();
            _buffer.Append("SELECT b.Email   ,a.VenderId as      VendId                                                      ");
            _buffer.Append(" FROM      VenderUsers AS a INNER JOIN                                        ");
            _buffer.Append("               Users AS b ON a.UserId = b.ID INNER JOIN                       ");
            _buffer.Append("                 FactoryUsers AS c ON a.UserId = c.UserID INNER JOIN          ");
            _buffer.Append("                 TA_FACTORY AS d ON c.FACTORY_ID = d.ID INNER JOIN            ");
            _buffer.Append("                 Users AS f ON c.UserID = f.ID INNER JOIN                     ");
            _buffer.Append("                 RoleUsers AS g ON a.UserId = g.UserID INNER JOIN             ");
            _buffer.Append("                 Roles AS h ON g.RoleID = h.ID                                ");
            _buffer.AppendFormat(" WHERE(h.Name = '供应商'   and b.Enabled=1) ");
            var _userList = idb.Database.SqlQuery<MailVend>(_buffer.ToString()).ToList();
            var grouplist = _userList.GroupBy(r => r.VendId);
            if (_userList != null && _userList.Count > 0)
            {
                foreach (var itm in grouplist)
                {
                    var maillist = itm.Select(r => r.Email);
                    string mails = "";
                    foreach (var mail in maillist)
                    {
                        mails += mail + ",";
                    }
                    if (mails != "")
                    {
                        mails = mails.Substring(0, mails.Length - 1);
                    }
                    var stocklist = wmsdb.VIEW_STOCK_VEND.Where(r => r.VendId == itm.Key).ToList();
                    if (stocklist.Count() == 0)
                    {
                        continue;
                    }
                    var dt_stocklist = ToDataTable(stocklist);
                    var html_stocklist = GetHtmlString(dt_stocklist);
                    MyWebSmtpMail webmail = new MyWebSmtpMail();
                    webmail.Send(mails, html_stocklist, "库存");
                    Console.WriteLine($"发送邮件：供应商编码为{ itm.Key}");
                }
            }
        }
        #region  将list转换为datatable
        /// <summary>
        /// 将list转换为datatable
        /// </summary>
        public static DataTable ToDataTable<T>(List<T> items)
        {
            var tb = new DataTable(typeof(T).Name);
            PropertyInfo[] props = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);
            foreach (PropertyInfo prop in props)
            {
                Type t = GetCoreType(prop.PropertyType);
                tb.Columns.Add(prop.Name, t);
            }
            foreach (T item in items)
            {
                var values = new object[props.Length];
                for (int i = 0; i < props.Length; i++)
                {
                    values[i] = props[i].GetValue(item, null);
                }
                tb.Rows.Add(values);
            }
            return tb;
        }
        /// <summary>
        /// Determine of specified type is nullable
        /// </summary>
        public static bool IsNullable(Type t)
        {
            return !t.IsValueType || (t.IsGenericType && t.GetGenericTypeDefinition() == typeof(Nullable<>));
        }
        /// <summary>
        /// Return underlying type if type is Nullable otherwise return the type
        /// </summary>
        public static Type GetCoreType(Type t)
        {
            if (t != null && IsNullable(t))
            {
                if (!t.IsValueType)
                {
                    return t;
                }
                else
                {
                    return Nullable.GetUnderlyingType(t);
                }
            }
            else
            {
                return t;
            }
        }
        #endregion
        public static string GetHtmlString(DataTable dt)
        {
            StringBuilder sb = new StringBuilder();
            sb.Append("<html><head>");
            sb.Append("<title>Excel转换为Table</title>");
            sb.Append("<meta http-equiv='content-type' content='text/html; charset=GB2312'> ");
            sb.Append("<style type=text/css>");
            sb.Append("td{font-size: 9pt;border:solid 1 #000000;}");
            sb.Append("table{padding:3 0 3 0;border:solid 1 #000000;margin:0 0 0 0;BORDER-COLLAPSE: collapse;}");
            sb.Append("</style>");
            sb.Append("</head>");
            sb.Append("<body>");
            sb.Append("<table cellSpacing='0' cellPadding='0' width ='100%' border='1'>");
            sb.Append("<tr valign='middle'>");
            sb.Append("<td><b></b></td>");
            foreach (DataColumn column in dt.Columns)
            {
                sb.Append("<td><b><span>" + column.ColumnName + "</span></b></td>");
            }
            sb.Append("</tr>");
            int iColsCount = dt.Columns.Count;
            int rowsCount = dt.Rows.Count - 1;
            for (int j = 0; j <= rowsCount; j++)
            {
                sb.Append("<tr>");
                sb.Append("<td>" + ((int)(j + 1)).ToString() + "</td>");
                for (int k = 0; k <= iColsCount - 1; k++)
                {
                    sb.Append("<td>");
                    object obj = dt.Rows[j][k];
                    if (obj == DBNull.Value)
                    {
                        obj = "&nbsp;";//如果是NULL则在HTML里面使用一个空格替换之
                    }
                    if (obj.ToString() == "")
                    {
                        obj = "&nbsp;";
                    }
                    string strCellContent = obj.ToString().Trim();
                    sb.Append("<span>" + strCellContent + "</span>");
                    sb.Append("</td>");
                }
                sb.Append("</tr>");
            }
            sb.Append("</table>");

            //点击单元格 输出 行和列
            //sb.Append("<script src='https://cdn.bootcss.com/jquery/1.12.4/jquery.min.js'></script>");
            //sb.Append("<script type='text/javascript'>");
            //sb.Append("$('table tbody').on('click', 'td', function (e) {");
            //sb.Append("var row = $(this).parent().prevAll().length-1 ;");
            //sb.Append("var column = $(this).prevAll().length-1 ;");
            //sb.Append("var str = 'dt.Rows[' + row + '][' + column + '].ToString()';");
            //sb.Append("console.log(str);alert(str);");
            //sb.Append("});");
            //sb.Append("</script>");

            sb.Append("</body></html>");
            return sb.ToString();
        }
    }
}