NPOI文件导入操作

using EntMSM.SmsDbContext;
using NPOI.HSSF.UserModel;
using NPOI.SS.UserModel;
using NPOI.XSSF.UserModel;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.OleDb;
using System.Data.SqlClient;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Web.Mvc;

namespace EntMSM.Controllers
{
    public class ContactsController : BaseController
    {
        EntSmsDbContext esd = new EntSmsDbContext();

        /// <summary>
        /// iqueryable转datatable
        /// </summary>
        /// <param name="enumerable"></param>
        /// <returns></returns>
        public static DataTable ConvertToDataTable(IQueryable<EntMSM.Models.ContactList> database)
        {
            DataTable table = new DataTable();
            table.Columns.Add("编号", typeof(long));
            table.Columns.Add("姓名", typeof(string));
            table.Columns.Add("电话", typeof(string));
            table.Columns.Add("邮箱", typeof(string));
            table.Columns.Add("公司", typeof(string));
            foreach (EntMSM.Models.ContactList info in database)
            {
                DataRow row = table.NewRow();
                row["编号"] = info.Id;
                row["姓名"] = info.LinkName;
                row["电话"] = info.LinkMobile;
                row["邮箱"] = info.LinkEmails;
                row["公司"] = info.LinkCompany;
                table.Rows.Add(row);
            }
            return table;
        }
        /// <summary>
        /// ASP.NET MVC导出CSV文件
        /// </summary>
        /// <returns></returns>
        public ActionResult DataSetToCsv()
        {

            //定义模版（标题、内容字段、格式化参数）
            string[] template = new string[] { "编号,", "姓名,", "电话,", "邮箱,", "公司,","分组名" };
            string contactsfileName = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString();
            System.IO.MemoryStream output = new System.IO.MemoryStream();
            System.IO.StreamWriter writer = new System.IO.StreamWriter(output, System.Text.Encoding.Default);
            //输出标题
            int lenght = template.GetLength();
            for (int i = ; i < lenght; i++)
                writer.Write(template[i]);
            writer.WriteLine();
            //输出内容
            EntMSM.Models.Users curr = Session["LoginUser"] as EntMSM.Models.Users;

            //通过lambda表达式实现多表连接查询 显示对应的 短信账户名称 和角色权限对应名称
            var contactsList = esd.ContactLists.AsEnumerable().Join(esd.Groupss, a => a.Groups_Id, b => b.Id,
                (a, b) => new { a.Id, a.LinkCompany, a.LinkEmails, a.LinkMobile, a.LinkName, a.Uses_Id, b.Name }).Where(a => a.Uses_Id == curr.Id).DefaultIfEmpty();
            //var contactsList = esd.ContactLists.Where(u => u.Uses_Id == curr.Id);
            //List<EntMSM.Models.ContactList> lstUser = contactsList.Where(a=>a.Uses_Id==curr.Id).ToList();
            if (contactsList != null)
            {
                foreach (var user in contactsList)
                {
                    writer.Write(user.Id + ",");
                    writer.Write("\"" + System.Web.HttpUtility.HtmlDecode(user.LinkName) + "\",");
                    writer.Write(System.Web.HttpUtility.HtmlDecode(user.LinkMobile) + ",");
                    writer.Write("\"" + System.Web.HttpUtility.HtmlDecode(user.LinkEmails) + "\",");
                    writer.Write("\"" + System.Web.HttpUtility.HtmlDecode(user.LinkCompany) + "\",");
                    writer.Write(user.Name);
                    writer.WriteLine();
                }
            }
            writer.Flush();
            output.Position = ;
            return File(output, "text/comma-separated-values", contactsfileName + ".csv");

        }

        #region Oledb方式读取EXCEL 导入通讯录
        /// <summary>
        /// Oledb方式读取EXCEL
        /// </summary>
        /// <param name="fileNamePath">文件路径</param>
        /// <returns>DataTable</returns>
        private DataTable ReadExcelByOledb(string fileNamePath, EntMSM.Models.Users currentUser)
        {
            string connStr = "Provider=Microsoft.Ace.OleDb.12.0;" + "data source=" + fileNamePath + ";Extended Properties='Excel 12.0; HDR=Yes; IMEX=1'";
            OleDbConnection oledbconn1 = new OleDbConnection(connStr);
            oledbconn1.Open();
            DataTable _table = oledbconn1.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });

            string strTableName = string.Empty;
            if (_table.Rows.Count > )
            {
                strTableName = _table.Rows[]["TABLE_NAME"].ToString().Trim();
                string sql = string.Format("SELECT * FROM [{0}]", strTableName);
                _table = new DataTable();
                OleDbDataAdapter da = new OleDbDataAdapter(sql, oledbconn1);
                _table.Columns.Add(new DataColumn("Uses_Id", typeof(int)));
                _table.Columns["Uses_Id"].DefaultValue = currentUser.Id;//设置该列默认值
                da.Fill(_table);
            }
            oledbconn1.Close();
            return _table;
        }
        /// <summary>
        /// 利用NPOI读取Excel
        /// </summary>
        IWorkbook hssfworkbook;
        public DataTable ImportExcelFile(string fileNamePath, string groupsId, EntMSM.Models.Users currentUser)
        {
            #region//初始化信息
            string fileType = fileNamePath.Split('.')[].Trim();
            try
            {
                using (FileStream file = new FileStream(fileNamePath, FileMode.Open, FileAccess.Read))
                {
                    if (fileType == "xlsx")
                    {
                        hssfworkbook = new XSSFWorkbook(file);
                    }
                    else
                    {
                        hssfworkbook = new HSSFWorkbook(file);
                    }
                }
            }
            catch (Exception e)
            {
                throw e;
            }
            #endregion

            ISheet sheet = hssfworkbook.GetSheetAt();
            System.Collections.IEnumerator rows = sheet.GetRowEnumerator();

            DataTable dt = new DataTable();

            dt.Columns.Add("Id", typeof(Int32));
            dt.Columns.Add("Uses_Id", typeof(Int32));
            dt.Columns.Add("LinkName", typeof(string));
            dt.Columns.Add("LinkMobile", typeof(string));
            dt.Columns.Add("LinkEmails", typeof(string));
            dt.Columns.Add("LinkCompany", typeof(string));
            dt.Columns.Add("Groups_Id", typeof(Int32));
            rows.MoveNext();
            while (rows.MoveNext())
            {
                IRow row = null;
                if (fileType == "xlsx")
                {
                    row = (XSSFRow)rows.Current;
                }
                else
                {
                    row = (HSSFRow)rows.Current;
                }

                DataRow dr = dt.NewRow();
                for (int i = ; i < ; i++)
                {
                    ICell cell = row.GetCell(i);
                    if (i == )
                    {
                        if (cell == null)
                        {
                            dr[i] = null;
                        }
                        else
                        {
                            dr[i] = cell.ToString();
                        }
                    }
                    else if (i == )
                    {
                        dr[i] = currentUser.Id;
                        dr[i + ] = cell.ToString();
                    }
                    else if (i == )
                    {
                        dr[i+] =int.Parse(groupsId);
                    }
                    else
                    {
                        if (cell == null)
                        {
                            dr[i + ] = null;
                        }
                        else
                        {
                            dr[i + ] = cell.ToString();
                        }
                    }
                }
                dt.Rows.Add(dr);
            }
            return dt;
        }

        /// <summary>
        /// 读取csv
        /// </summary>
        /// <param name="filepath"></param>
        /// <returns></returns>
        private DataTable ReadCsv(string filepath,string groupsId ,EntMSM.Models.Users currentUser)
        {
            base.IsLogin();
            StreamReader sr;
            string strTol = string.Empty;
            string strTemp = string.Empty;
            DataTable dt = new DataTable();
            EntMSM.Models.Users curr = Session["LoginUser"] as EntMSM.Models.Users;
            int count = ;//导入成功的计数
            try
            {
                sr = new StreamReader(filepath, Encoding.Default);
                dt.Columns.Add("Id", typeof(Int32));
                dt.Columns.Add("Uses_Id", typeof(Int32));
                dt.Columns.Add("LinkName", typeof(string));
                dt.Columns.Add("LinkMobile", typeof(string));
                dt.Columns.Add("LinkEmails", typeof(string));
                dt.Columns.Add("LinkCompany", typeof(string));
                dt.Columns.Add("Groups_Id",typeof(Int32));
                strTemp = sr.ReadLine();//跳过头部
                strTemp = sr.ReadLine();//跳过模板号码

                if (strTemp.Split(',').Length > )
                {
                    //针对360手机助手导出的通讯录导入
                    while (!string.IsNullOrEmpty(strTemp))//如果还有数据，继续读数据
                    {
                        count++;
                        DataRow row = dt.NewRow();
                        string tel = strTemp.Split(',')[].Trim('"').Trim(' ');
                        row["Id"] = ;
                        row["Uses_Id"] = currentUser.Id;
                        row["LinkName"] = strTemp.Split(',')[].Trim('"').Trim(' ');
                        row["LinkMobile"] = tel;
                        row["LinkEmails"] = strTemp.Split(',')[].Trim('"').Trim(' ');
                        row["LinkCompany"] = strTemp.Split(',')[].Trim('"').Trim(' ');
                        row["Groups_Id"] =int.Parse(groupsId);
                        dt.Rows.Add(row);
                        strTemp = sr.ReadLine();//读取下一行

                    }
                }
                else
                {
                    //普通格式的文档导入
                    while (!string.IsNullOrEmpty(strTemp))//如果还有数据，继续读数据
                    {
                        count++;
                        DataRow row = dt.NewRow();
                        string tel = strTemp.Split(',')[].Trim('"').Trim(' ');
                        row["Id"] = ;
                        row["Uses_Id"] = currentUser.Id;
                        row["LinkName"] = strTemp.Split(',')[].Trim('"').Trim(' ');
                        row["LinkMobile"] = tel;
                        row["LinkEmails"] = strTemp.Split(',')[].Trim('"').Trim(' ');
                        row["LinkCompany"] = strTemp.Split(',')[].Trim('"').Trim(' ');
                        row["Groups_Id"] =int.Parse(groupsId);
                        dt.Rows.Add(row);
                        strTemp = sr.ReadLine();//读取下一行

                    }
                }
            }
            catch (Exception)
            {
                dt = null;
                throw;
            }
            sr.Close();//关闭流
            return dt;

        }
        /// <summary>
        /// 判断两个DataTable中，第一个dataTable中在第二个dataTable中不存在的记录集
        /// </summary>
        /// <param name="returnTable">返回的不重复的结果集</param>
        /// <param name="table1">即将导入的数据集</param>
        /// <param name="table2">数据库中的数据集</param>
        /// <param name="fieldsStr">字段名</param>
        /// <returns></returns>
        public static DataTable ComPare2DataTable(DataTable table1, DataTable table2, string fieldsStr)
        {
            try
            {
                DataTable returnTable = new DataTable();
                returnTable = table1.Clone();

                //for循环将数据库中的table2的每行数据转换为一个字符串，保存的HashTable中
                Hashtable hashtable = new Hashtable();
                DataRow[] dataRows = table2.Select("");

                string[] fieldArr = fieldsStr.Split(',');

                foreach (DataRow row in dataRows)
                {
                    string rowStr = "";
                    for (int i = ; i < fieldArr.Length; i++)
                    {
                        Object obj = row[fieldArr[i]];
                        if (!String.IsNullOrEmpty(obj.ToString()))
                        {
                            rowStr += obj.ToString();
                        }
                    }
                    hashtable.Add(rowStr, "");
                }

                //将要导入的DataTable,将每一行数据转换为字符串之后，在hashTable中找是否存在这个key,存在的加入返回的DataTable中，反之不加入。
                DataRow[] dataRows1 = table1.Select();
                foreach (DataRow row in dataRows1)
                {
                    string rowStr1 = "";
                    for (int i = ; i < fieldArr.Length; i++)
                    {
                        Object obj = row[fieldArr[i]];
                        if (!String.IsNullOrEmpty(obj.ToString()))
                        {
                            rowStr1 += obj.ToString();
                        }
                    }
                    if (!hashtable.ContainsKey(rowStr1))
                    {
                        returnTable.Rows.Add(row.ItemArray);
                    }
                }
                return returnTable;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        /// <summary>
        /// 文档上传 读取文档内容并保存到 数据库
        /// </summary>
        /// <param name="context"></param>
        /// <returns></returns>
        public string UploadFile()
        {
            string result = "导入失败！";
            try
            {
                base.IsLogin();
                int sucCount = ;
                int allCount = ;
                string reqs = Request.Form["fileName"];
                string groupsId=Request.Form["groupsId"];
                string strPath = Server.MapPath("/UpLoadFile/" + reqs);
                EntMSM.Models.Users curr = Session["LoginUser"] as EntMSM.Models.Users;
                DataTable dt = null;
                DataTable dt1 = ConvertToDataTable(esd.ContactLists.Where(a => a.Uses_Id == curr.Id));
                dt1.Columns["电话"].ColumnName = "LinkMobile";
                if (reqs.Split('.')[].ToUpper() == "CSV")
                {
                    dt = ReadCsv(strPath, groupsId, curr);//csv
                }
                else
                {
                    dt = ImportExcelFile(strPath, groupsId, curr);
                    //ReadExcelByOledb(strPath, curr);//xls
                    // dt.Columns["电话"].ColumnName = "LinkMobile";
                }
                allCount = dt.Rows.Count;
                //去掉重复行 ，重复数据过滤
                DataTable dd = DeleteSameRow(dt, "LinkMobile");//去除上传文件中重复的数据
                DataTable ddt = ComPare2DataTable(dd, dt1, "LinkMobile");//出去已经存在数据库中的重复数据

                int currCount = ddt.Rows.Count;
                for (int i = ; i < ddt.Rows.Count; )
                {
                    //ddt.Rows[i][2] = System.Web.HttpUtility.HtmlEncode(ddt.Rows[i][2].ToString());
                    //ddt.Rows[i][3] = System.Web.HttpUtility.HtmlEncode(ddt.Rows[i][3].ToString());
                    //ddt.Rows[i][4] = System.Web.HttpUtility.HtmlEncode(ddt.Rows[i][4].ToString());
                    //ddt.Rows[i][5] = System.Web.HttpUtility.HtmlEncode(ddt.Rows[i][5].ToString());
                    if (ddt.Rows[i][].ToString().Trim() == "" || ddt.Rows[i][] == null || ddt.Rows[i][].ToString().Trim() == "" || ddt.Rows[i][] == null || ddt.Rows[i][].ToString().Trim() == "" || ddt.Rows[i][] == null)
                    {
                        ddt.Rows[i].Delete();
                    }
                    else
                    {
                        if (!IsChiOrEng(ddt.Rows[i][].ToString()))
                        {
                            ddt.Rows[i].Delete();
                        }
                        else if (!IsPhone(ddt.Rows[i][].ToString()))
                        {
                            ddt.Rows[i].Delete();
                        }
                        else if (!IsEmail(ddt.Rows[i][].ToString()))
                        {
                            ddt.Rows[i].Delete();
                        }
                        else if (StrLenth(ddt.Rows[i][].ToString()))
                        {
                            ddt.Rows[i].Delete();
                        }
                        else if (StrLenth(ddt.Rows[i][].ToString()))
                        {
                            ddt.Rows[i].Delete();
                        }
                        else if (StrLenth(ddt.Rows[i][].ToString()))
                        {
                            ddt.Rows[i].Delete();
                        }
                        else
                        {
                            i++;
                        }
                    }
                }

                int twoCount = ddt.Rows.Count;
                if (currCount > )
                {
                    sucCount = addTable(ddt);
                    if (sucCount > )
                    {
                        result = "导入通讯录共计：" + allCount + "条\n\t导入成功：" + sucCount + "条\n\t过滤重复联系人：" + (allCount - currCount) + "条\n\t过滤错误数据：" + (currCount - twoCount) + "条";
                    }
                    else
                    {
                        result = "导入通讯录共计：" + allCount + "条\n\t导入成功：" + sucCount + "条\n\t过滤重复联系人：" + (allCount - currCount) + "条\n\t过滤错误数据：" + (currCount - twoCount) + "条";
                    }
                }
                else
                {
                    result = "导入通讯录共计：" + allCount + "条\n\t导入成功：" + sucCount + "条\n\t过滤重复联系人：" + (allCount - currCount) + "条\n\t过滤错误数据：" + (currCount - twoCount) + "条";
                }
                if (System.IO.File.Exists(strPath)) //存在文件
                {
                    System.IO.File.Delete(strPath);//删除文件
                }
            }
            catch
            {
                result = "文档内容格式有误,导入失败！";
            }
            return result;
        }
        /// <summary>
        /// 替换html中的特殊字符
        /// </summary>
        /// <param name="theString">需要进行替换的文本。</param>
        /// <returns>替换完的文本。</returns>
        public string HtmlEncode(string theString)
        {
            theString = theString.Replace(">", "&gt;");
            theString = theString.Replace("<", "&lt;");
            theString = theString.Replace("\"", "&quot;");
            theString = theString.Replace("\'", "'");
            theString = theString.Replace("\n", "<br/> ");
            return theString;
        }
        #region 删除DataTable重复列，类似distinct
        /// <summary>
        /// 删除DataTable重复列，类似distinct
        /// </summary>
        /// <param name="dt">DataTable</param>
        /// <param name="Field">字段名</param>
        /// <returns></returns>
        public static DataTable DeleteSameRow(DataTable dt, string Field)
        {
            ArrayList indexList = new ArrayList();
            // 找出待删除的行索引
            for (int i = ; i < dt.Rows.Count - ; i++)
            {
                if (!IsContain(indexList, i))
                {
                    for (int j = i + ; j < dt.Rows.Count; j++)
                    {
                        if (dt.Rows[i][Field].ToString() == dt.Rows[j][Field].ToString())
                        {
                            indexList.Add(j);
                        }
                    }
                }
            }
            indexList.Sort();
            // 排序
            for (int i = indexList.Count - ; i >= ; i--)// 根据待删除索引列表删除行
            {
                int index = Convert.ToInt32(indexList[i]);
                dt.Rows.RemoveAt(index);
            }
            return dt;
        }

        /// <summary>
        /// 判断数组中是否存在
        /// </summary>
        /// <param name="indexList">数组</param>
        /// <param name="index">索引</param>
        /// <returns></returns>
        public static bool IsContain(ArrayList indexList, int index)
        {
            for (int i = ; i < indexList.Count; i++)
            {
                int tempIndex = Convert.ToInt32(indexList[i]);
                if (tempIndex == index)
                {
                    return true;
                }
            }
            return false;
        }
        #endregion
        /// <summary>
        /// 添加table
        /// </summary>
        /// <param name="dtt"></param>
        /// <returns></returns>
        public int addTable(DataTable dtt)
        {
            string a = ConfigurationManager.ConnectionStrings["EntSmsDbContext"].ToString();
            SqlConnection con = new SqlConnection(a);
            SqlCommand cmd = new SqlCommand("select * from ContactList", con);
            SqlDataAdapter sda = new SqlDataAdapter(cmd);
            SqlCommandBuilder Builder = new SqlCommandBuilder(sda);
            sda.Fill(dtt);
            int states = sda.Update(dtt);
            return states;
        }
        /// <summary>
        /// 字符串长度
        /// </summary>
        /// <param name="len"></param>
        /// <returns></returns>
        public bool StrLenth(string len)
        {

            if (IsChinese(len))
            {
                if (len.ToString().Length > )
                {
                    return true;
                }
            }
            else
            {
                if (len.ToString().Length > )
                {
                    return true;
                }
            }
            return false;
        }
        /// <summary>
        /// 判断是否为Email
        /// </summary>
        /// <param name="s">字符串</param>
        /// <returns></returns>
        public static bool IsEmail(string s)
        {
            return Regex.IsMatch(s, @"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");
        }
        /// <summary>
        /// 判断是否为手机号码格式
        /// </summary>
        /// <param name="s">字符串</param>
        /// <returns></returns>
        public static bool IsPhone(string s)
        {
            return Regex.IsMatch(s, @"^(((13[0-9]{1})|14[0-9]{1}|15[0-9]{1}|18[0-9]{1})+\d{8})$");
        }
        /// <summary>
        /// 判断是否为中文字符
        /// </summary>
        /// <param name="s">字符串</param>
        /// <returns></returns>
        public static bool IsChinese(string s)
        {
            return Regex.IsMatch(s, @"[\u4e00-\u9fa5]");
        }
        /// <summary>
        /// 验证用户名为中、英文
        /// </summary>
        /// <param name="val"></param>
        /// <returns></returns>
        public static bool IsChiOrEng(string val)
        {
            string strRegex = @"[\u4e00-\u9fa5_a-zA-Z]";
            return Regex.IsMatch(val, strRegex);
        }
        /// <summary>
        /// 判断是否为正整数
        /// </summary>
        /// <param name="s">字符串</param>
        /// <returns></returns>
        public static bool IsInt(string s)
        {
            return Regex.IsMatch(s, @"^\d+$");
        }
        #endregion

        /// <summary>
        /// 非法字符转换
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public string ReplaceStr(string str)
        {
            //str=str.Replace(",","");
            str = str.Replace("'", "");
            str = str.Replace(";", "");
            str = str.Replace(":", "");
            str = str.Replace("/", "");
            str = str.Replace("?", "");
            str = str.Replace("<", "");
            str = str.Replace(">", "");
            str = str.Replace(".", "");
            str = str.Replace("#", "");
            str = str.Replace("%", "");
            str = str.Replace("%", "");
            str = str.Replace("^", "");
            str = str.Replace("//", "");
            str = str.Replace("@", "");
            str = str.Replace("(", "");
            str = str.Replace(")", "");
            str = str.Replace("*", "");
            str = str.Replace("~", "");
            str = str.Replace("`", "");
            str = str.Replace("$", "");
            str = str.Replace("&", "");
            str = str.Replace("\n", "");
            return str;
        }

    }
}