MVC中FileResult 返回类型返回Excel

公司中以前写的导出有问题。原来使用的XML格式字符串拼接然后转化成流输出

action

        public FileResult ExportJobFair()

        {

            try

            {

                string name = "t";

                int lblx = int.Parse(Request.QueryString["LBLX"]);

                string filename = name + DateTime.Now.ToString("yyyyMMddHHmmss") + ".xlsx";

                byte[] excelbyte = new RecruitmentMeeting().ExportJobFair(Request.QueryString["LBLX"]);

                return File(excelbyte, @"application/ms-excel", filename);

            }

            catch (Exception)

            {

                return null;

            }

        }

XML字符串拼接

    public byte[] ExportJobFair(string lblx)

        {

            try

            {

                //生成execl

                string name = "招聘会列表";

                string muban1 = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?><?mso-application progid=\"Excel.Sheet\"?><Workbook xmlns=\"urn:schemas-microsoft-com:office:spreadsheet\" xmlns:o=\"urn:schemas-microsoft-com:office:office\" xmlns:x=\"urn:schemas-microsoft-com:office:excel\" xmlns:ss=\"urn:schemas-microsoft-com:office:spreadsheet\" xmlns:html=\"http://www.w3.org/TR/REC-html40\" xmlns:dt=\"uuid:C2F41010-65B3-11d1-A29F-00AA00C14882\"><DocumentProperties xmlns=\"urn:schemas-microsoft-com:office:office\"><Author>User</Author><LastAuthor>User</LastAuthor><Created>2017-01-12T03:15:00Z</Created><LastSaved>2017-01-12T03:46:32Z</LastSaved></DocumentProperties><CustomDocumentProperties xmlns=\"urn:schemas-microsoft-com:office:office\"><KSOProductBuildVer dt:dt=\"string\">2052-10.1.0.6135</KSOProductBuildVer></CustomDocumentProperties><ExcelWorkbook xmlns=\"urn:schemas-microsoft-com:office:excel\"><WindowWidth>28695</WindowWidth><WindowHeight>13050</WindowHeight><ProtectStructure>False</ProtectStructure><ProtectWindows>False</ProtectWindows></ExcelWorkbook><Styles><Style ss:ID=\"s29\" ss:Name=\"链接单元格\"><Borders><Border ss:Position=\"Bottom\" ss:LineStyle=\"Double\" ss:Weight=\"3\" ss:Color=\"#FF8001\"/></Borders><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#FA7D00\"/></Style><Style ss:ID=\"s19\" ss:Name=\"标题 1\"><Borders><Border ss:Position=\"Bottom\" ss:LineStyle=\"Continuous\" ss:Weight=\"2\" ss:Color=\"#4472C4\"/></Borders><Font ss:FontName=\"等线\" x:CharSet=\"134\" ss:Size=\"15\" ss:Color=\"#44546A\" ss:Bold=\"1\"/></Style><Style ss:ID=\"s13\" ss:Name=\"注释\"><Borders><Border ss:Position=\"Bottom\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#B2B2B2\"/><Border ss:Position=\"Left\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#B2B2B2\"/><Border ss:Position=\"Right\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#B2B2B2\"/><Border ss:Position=\"Top\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#B2B2B2\"/></Borders><Interior ss:Color=\"#FFFFCC\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s8\" ss:Name=\"千位分隔\"></Style><Style ss:ID=\"s22\" ss:Name=\"标题 3\"><Borders><Border ss:Position=\"Bottom\" ss:LineStyle=\"Continuous\" ss:Weight=\"2\" ss:Color=\"#A2B8E1\"/></Borders><Font ss:FontName=\"等线\" x:CharSet=\"134\" ss:Size=\"11\" ss:Color=\"#44546A\" ss:Bold=\"1\"/></Style><Style ss:ID=\"s17\" ss:Name=\"标题\"><Font ss:FontName=\"等线\" x:CharSet=\"134\" ss:Size=\"18\" ss:Color=\"#44546A\" ss:Bold=\"1\"/></Style><Style ss:ID=\"s10\" ss:Name=\"超链接\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#0000FF\" ss:Underline=\"Single\"/></Style><Style ss:ID=\"s7\" ss:Name=\"差\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#9C0006\"/><Interior ss:Color=\"#FFC7CE\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s15\" ss:Name=\"标题 4\"><Font ss:FontName=\"等线\" x:CharSet=\"134\" ss:Size=\"11\" ss:Color=\"#44546A\" ss:Bold=\"1\"/></Style><Style ss:ID=\"s5\" ss:Name=\"千位分隔[0]\"></Style><Style ss:ID=\"s24\" ss:Name=\"输出\"><Borders><Border ss:Position=\"Bottom\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#3F3F3F\"/><Border ss:Position=\"Left\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#3F3F3F\"/><Border ss:Position=\"Right\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#3F3F3F\"/><Border ss:Position=\"Top\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#3F3F3F\"/></Borders><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#3F3F3F\" ss:Bold=\"1\"/><Interior ss:Color=\"#F2F2F2\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s3\" ss:Name=\"输入\"><Borders><Border ss:Position=\"Bottom\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#7F7F7F\"/><Border ss:Position=\"Left\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#7F7F7F\"/><Border ss:Position=\"Right\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#7F7F7F\"/><Border ss:Position=\"Top\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#7F7F7F\"/></Borders><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#3F3F76\"/><Interior ss:Color=\"#FFCC99\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s4\" ss:Name=\"货币\"></Style><Style ss:ID=\"s31\" ss:Name=\"好\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#006100\"/><Interior ss:Color=\"#C6EFCE\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s20\" ss:Name=\"标题 2\"><Borders><Border ss:Position=\"Bottom\" ss:LineStyle=\"Continuous\" ss:Weight=\"2\" ss:Color=\"#4472C4\"/></Borders><Font ss:FontName=\"等线\" x:CharSet=\"134\" ss:Size=\"13\" ss:Color=\"#44546A\" ss:Bold=\"1\"/></Style><Style ss:ID=\"s16\" ss:Name=\"警告文本\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#FF0000\"/></Style><Style ss:ID=\"s1\" ss:Name=\"货币[0]\"></Style><Style ss:ID=\"s30\" ss:Name=\"汇总\"><Borders><Border ss:Position=\"Bottom\" ss:LineStyle=\"Double\" ss:Weight=\"3\" ss:Color=\"#4472C4\"/><Border ss:Position=\"Top\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#4472C4\"/></Borders><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#000000\" ss:Bold=\"1\"/></Style><Style ss:ID=\"s11\" ss:Name=\"百分比\"><NumberFormat ss:Format=\"0%\"/></Style><Style ss:ID=\"Default\" ss:Name=\"Normal\"><Alignment/><Borders/><Font ss:FontName=\"等线\" x:CharSet=\"134\" ss:Size=\"11\" ss:Color=\"#000000\"/><Interior/><NumberFormat/><Protection/></Style><Style ss:ID=\"s40\" ss:Name=\"强调文字颜色 4\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#CCE8CF\"/><Interior ss:Color=\"#FFC000\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s37\" ss:Name=\"20% - 强调文字颜色 2\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#000000\"/><Interior ss:Color=\"#FCE4D6\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s32\" ss:Name=\"适中\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#9C6500\"/><Interior ss:Color=\"#FFEB9C\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s6\" ss:Name=\"40% - 强调文字颜色 3\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#000000\"/><Interior ss:Color=\"#DBDBDB\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s36\" ss:Name=\"40% - 强调文字颜色 1\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#000000\"/><Interior ss:Color=\"#B4C6E7\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s2\" ss:Name=\"20% - 强调文字颜色 3\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#000000\"/><Interior ss:Color=\"#EDEDED\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s47\" ss:Name=\"40% - 强调文字颜色 6\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#000000\"/><Interior ss:Color=\"#C6E0B4\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s9\" ss:Name=\"60% - 强调文字颜色 3\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#CCE8CF\"/><Interior ss:Color=\"#C9C9C9\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s35\" ss:Name=\"20% - 强调文字颜色 1\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#000000\"/><Interior ss:Color=\"#D9E1F2\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s18\" ss:Name=\"解释性文本\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#7F7F7F\" ss:Italic=\"1\"/></Style><Style ss:ID=\"s12\" ss:Name=\"已访问的超链接\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#800080\" ss:Underline=\"Single\"/></Style><Style ss:ID=\"s33\" ss:Name=\"20% - 强调文字颜色 5\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#000000\"/><Interior ss:Color=\"#DDEBF7\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s28\" ss:Name=\"强调文字颜色 2\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#CCE8CF\"/><Interior ss:Color=\"#ED7D31\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s14\" ss:Name=\"60% - 强调文字颜色 2\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#CCE8CF\"/><Interior ss:Color=\"#F4B084\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s38\" ss:Name=\"40% - 强调文字颜色 2\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#000000\"/><Interior ss:Color=\"#F8CBAD\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s27\" ss:Name=\"20% - 强调文字颜色 6\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#000000\"/><Interior ss:Color=\"#E2EFDA\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s21\" ss:Name=\"60% - 强调文字颜色 1\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#CCE8CF\"/><Interior ss:Color=\"#8EA9DB\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s42\" ss:Name=\"40% - 强调文字颜色 4\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#000000\"/><Interior ss:Color=\"#FFE699\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s41\" ss:Name=\"20% - 强调文字颜色 4\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#000000\"/><Interior ss:Color=\"#FFF2CC\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s25\" ss:Name=\"计算\"><Borders><Border ss:Position=\"Bottom\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#7F7F7F\"/><Border ss:Position=\"Left\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#7F7F7F\"/><Border ss:Position=\"Right\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#7F7F7F\"/><Border ss:Position=\"Top\" ss:LineStyle=\"Continuous\" ss:Weight=\"1\" ss:Color=\"#7F7F7F\"/></Borders><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#FA7D00\" ss:Bold=\"1\"/><Interior ss:Color=\"#F2F2F2\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s23\" ss:Name=\"60% - 强调文字颜色 4\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#CCE8CF\"/><Interior ss:Color=\"#FFD966\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s48\" ss:Name=\"60% - 强调文字颜色 6\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#CCE8CF\"/><Interior ss:Color=\"#A9D08E\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s46\" ss:Name=\"强调文字颜色 6\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#CCE8CF\"/><Interior ss:Color=\"#70AD47\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s39\" ss:Name=\"强调文字颜色 3\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#CCE8CF\"/><Interior ss:Color=\"#A5A5A5\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s26\" ss:Name=\"检查单元格\"><Borders><Border ss:Position=\"Bottom\" ss:LineStyle=\"Double\" ss:Weight=\"3\" ss:Color=\"#3F3F3F\"/><Border ss:Position=\"Left\" ss:LineStyle=\"Double\" ss:Weight=\"3\" ss:Color=\"#3F3F3F\"/><Border ss:Position=\"Right\" ss:LineStyle=\"Double\" ss:Weight=\"3\" ss:Color=\"#3F3F3F\"/><Border ss:Position=\"Top\" ss:LineStyle=\"Double\" ss:Weight=\"3\" ss:Color=\"#3F3F3F\"/></Borders><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#FFFFFF\" ss:Bold=\"1\"/><Interior ss:Color=\"#A5A5A5\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s34\" ss:Name=\"强调文字颜色 1\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#CCE8CF\"/><Interior ss:Color=\"#4472C4\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s45\" ss:Name=\"60% - 强调文字颜色 5\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#CCE8CF\"/><Interior ss:Color=\"#9BC2E6\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s44\" ss:Name=\"40% - 强调文字颜色 5\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#000000\"/><Interior ss:Color=\"#BDD7EE\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s43\" ss:Name=\"强调文字颜色 5\"><Font ss:FontName=\"等线\" x:CharSet=\"0\" ss:Size=\"11\" ss:Color=\"#CCE8CF\"/><Interior ss:Color=\"#5B9BD5\" ss:Pattern=\"Solid\"/></Style><Style ss:ID=\"s49\"/><Style ss:ID=\"s50\"><Alignment ss:Horizontal=\"Center\"/></Style><Style ss:ID=\"s51\"><Alignment/></Style><Style ss:ID=\"s52\"><Alignment ss:Horizontal=\"Center\"/></Style></Styles><Worksheet ss:Name=\"Sheet2\"><Table ss:ExpandedColumnCount=\"3\" ss:ExpandedRowCount=\"4\" x:FullColumns=\"1\" x:FullRows=\"1\" ss:DefaultColumnWidth=\"54\" ss:DefaultRowHeight=\"14.25\">";

                string muban2 = "<Row><Cell ss:StyleID=\"s52\" ss:MergeAcross=\"3\"><Data ss:Type=\"String\">" + name + "</Data></Cell></Row><Row><Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">招聘会名称</Data></Cell><Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">申请截止时间</Data></Cell><Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">开始时间</Data></Cell><Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">结束时间</Data></Cell><Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">地点</Data></Cell></Row>";

                string muban3 = "</Table><WorksheetOptions xmlns=\"urn:schemas-microsoft-com:office:excel\"><PageSetup><Header x:Margin=\"0.3\"/><Footer x:Margin=\"0.3\"/><PageMargins x:Left=\"0.699305555555556\" x:Right=\"0.699305555555556\" x:Top=\"0.75\" x:Bottom=\"0.75\"/></PageSetup><Selected/><TopRowVisible>0</TopRowVisible><LeftColumnVisible>0</LeftColumnVisible><PageBreakZoom>100</PageBreakZoom><Panes><Pane><Number>3</Number><ActiveRow>0</ActiveRow><ActiveCol>0</ActiveCol><RangeSelection>R1C1:R2C3</RangeSelection></Pane></Panes><ProtectObjects>False</ProtectObjects><ProtectScenarios>False</ProtectScenarios></WorksheetOptions></Worksheet><Worksheet ss:Name=\"Sheet1\"><Table ss:ExpandedColumnCount=\"1\" ss:ExpandedRowCount=\"1\" x:FullColumns=\"1\" x:FullRows=\"1\" ss:DefaultColumnWidth=\"54\" ss:DefaultRowHeight=\"14.25\"/><WorksheetOptions xmlns=\"urn:schemas-microsoft-com:office:excel\"><PageSetup><Header x:Margin=\"0.3\"/><Footer x:Margin=\"0.3\"/><PageMargins x:Left=\"0.699305555555556\" x:Right=\"0.699305555555556\" x:Top=\"0.75\" x:Bottom=\"0.75\"/></PageSetup><TopRowVisible>0</TopRowVisible><LeftColumnVisible>0</LeftColumnVisible><PageBreakZoom>100</PageBreakZoom><ProtectObjects>False</ProtectObjects><ProtectScenarios>False</ProtectScenarios></WorksheetOptions></Worksheet></Workbook>";

                if (int.Parse(lblx) == )

                {

                    muban2 = "<Row><Cell ss:StyleID=\"s52\" ss:MergeAcross=\"4\"><Data ss:Type=\"String\">" + name + "</Data></Cell></Row><Row><Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">招聘会名称</Data></Cell><Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">空余展位/总展位数</Data></Cell><Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">申请截止时间</Data></Cell><Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">开始时间</Data></Cell><Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">结束时间</Data></Cell></Row>";

                }
　　　　　　　　　　//查询类型

                ZphListParam cs = new ZphListParam();

                cs.MYHS = ;

                cs.YM = ;

                cs.LBLX = lblx;

                cs.PXFS = "ASC";

                cs.PXZD = "DHMC";

                ProcessResult pro = new RecruitmentMeeting().Query(cs);

                查询结果列表对象 ZPH = JsonHelper.JsonDeserialize<查询结果列表对象>(pro.ResultJson);

                IList<ZhaopinhuiJson4Query> rows = ZPH.Result.rows;

                if (ZPH.IsOK == true && rows.Count > )

                {

                    //序号

                    for (int i = ; i < rows.Count; i++)

                    {

                        muban2 += "<Row><Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">" + Common.DecodeString(rows[i].DHMC) + "</Data></Cell>";

                        if (int.Parse(lblx) == )

                        {

                            muban2 += "<Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">" + rows[i].KYZW + "/" + rows[i].ZZWS + "</Data></Cell>";

                            //muban2 += "<Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">" + rows[i].SQJSSJ + "</Data></Cell>";

                            muban2 += "<Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">" + rows[i].KSSJ + "</Data></Cell>";

                            muban2 += "<Cell ss:StyleID=\"s51\"><Data ss:Type=\"Number\">" + rows[i].JSSJ + "</Data></Cell></Row>";

                        }

                        else

                        {

                            //muban2 += "<Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">" + rows[i].SQJSSJ + "</Data></Cell>";

                            muban2 += "<Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">" + rows[i].KSSJ + "</Data></Cell>";

                            muban2 += "<Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">" + rows[i].JSSJ + "</Data></Cell>";

                            muban2 += "<Cell ss:StyleID=\"s51\"><Data ss:Type=\"String\">" + Common.DecodeString(rows[i].DZ) + "</Data></Cell></Row>";

                        }

                    }

                }

                string xmldata = muban1 + muban2 + muban3;

                byte[] xmlbytes = Encoding.Default.GetBytes(xmldata);

                return xmlbytes;

            }

            catch (Exception)

            {

                return null;

            }

        }

数据库语句执行完返回的数据类型

    public class ProcessResult

    {

        /// <summary>

        /// 调用是否成功

        /// </summary>

        public Boolean IsOK { get; set; }

        /// <summary>

        /// 调用是否成功的文字描述

        /// </summary>

        public String Message { get; set; }

        /// <summary>

        /// 调用返回对象

        /// </summary>

        public Object ResultObj { get; set; }

        /// <summary>

        /// 调用返回值的JSON表示

        /// </summary>

        public String ResultJson { get; set; }

        /// <summary>

        /// 获取与设置表格字段名

        /// </summary>

        public string[] Head { get; set; }

        /// <summary>

        /// 表格标题

        /// </summary>

        public string[] HeadText { get; set; }

        /// <summary>

        /// 标题列宽

        /// </summary>

        public int[] HeadWidth { get; set; }

        /// <summary>

        /// 调用受影响的数据行数

        /// 对于查询语句，返回符合查询条件的总行数

        /// 对于修改语句，返回被更新的数据的总行数

        /// </summary>

        public int RowCount { get; set; }

        public int Total { get; set; }

        /// <summary>

        /// 构造函数

        /// </summary>

        /// <param name="ok">调用是否成功</param>

        /// <param name="msg">调用是否成功的文字描述</param>

        /// <param name="obj">调用返回对象</param>

        /// <param name="json">调用返回值的JSON表示</param>

        /// <param name="count">调用受影响的数据行数</param>

        public ProcessResult(bool ok, string msg, object obj, string json, int count)

        {

            IsOK = ok;

            Message = msg;

            ResultObj = obj;

            ResultJson = json;

            RowCount = count;

        }

        public ProcessResult()

        {

        }

    }

然后发现生成的XML返回EXCEL 程序不认，office excel和WPS均无法打开。提示文件损坏，只能选择重写

因为涉及的地方比较多，时间也比较充裕于是写了一个简单是帮助类

（提示：项目需要引用 Microsoft.Office.Interop）

using System;

using System.Collections.Generic;

using System.Data;

using System.Linq;

using System.Reflection;namespace Utility

{

    public class ExcelHelper

    {

        /// <summary>

        /// DataTable导出excel

        /// 返回保存的地址

        /// </summary>

        /// <param name="datas">数据源</param>

        /// <param name="p">保存路径</param>

        /// <returns></returns>

        public static string DataTableToExcel(DataTable datas, string p)

        {

            Microsoft.Office.Interop.Excel.Application app =

                new Microsoft.Office.Interop.Excel.Application();

            try

            {

                app.Visible = false;

                Microsoft.Office.Interop.Excel.Workbook wBook = app.Workbooks.Add(true);

                Microsoft.Office.Interop.Excel.Worksheet wSheet = wBook.Sheets[];

                wSheet.Name = "shhel";

                if (datas.Rows.Count > )

                {

                    int row = datas.Rows.Count;

                    int col = datas.Columns.Count;

                    for (int i = ; i < row; i++)

                    {

                        for (int j = ; j < col; j++)

                        {

                            string str = "-";

                            if (datas.Rows[i][j].Equals(float.NaN) == false)

                            {

                                str = datas.Rows[i][j].ToString();

                            }

                            wSheet.Cells[i + , j + ] = str;

                        }

                    }

                }

                int size = datas.Columns.Count;

                for (int i = ; i < size; i++)

                {

                    wSheet.Cells[,  + i] = datas.Columns[i].ColumnName;

                }

                //列自适应

                wSheet.Columns.EntireColumn.AutoFit();

                //设置禁止弹出保存和覆盖的询问提示框

                app.DisplayAlerts = false;

                app.AlertBeforeOverwriting = false;

                //保存工作簿

                //wBook.Save();

                wSheet.SaveAs(p);

                wBook.Close();

                //保存excel文件

                //app.Save(filePath);

                //app.SaveWorkspace(filePath);

                app.Quit();

                GC.Collect();

            }

            catch (Exception)

            {

                //强制结束excel进程

                IntPtr t = new IntPtr(app.Hwnd);

            }

            return p;

        }

        /// <summary>

        /// 泛型集合转DataTable

        /// </summary>

        /// <typeparam name="T"></typeparam>

        /// <param name="items"></param>

        /// <returns></returns>

        public static DataTable ToDataTable<T>(IList<T> items)

        {

            if (items==null)

            {

            return null;

            }

            var tb = new DataTable(typeof(T).Name);

            PropertyInfo[] props = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);

            foreach (PropertyInfo prop in props)

            {

                tb.Columns.Add(prop.Name);

            }

            foreach (T item in items)

            {

                var values = new object[props.Length];

                for (int i = ; i < props.Length; i++)

                {

                    values[i] = props[i].GetValue(item, null);

                }

                tb.Rows.Add(values);

            }

            return tb;

        }

    }

}

写好后的Action调用

        public FileResult ExportJobFairExcel()

        {

            try

            {

                string name = "招聘会列表";

                int lblx = int.Parse(Request.QueryString["LBLX"]);

                string filename = name + DateTime.Now.ToString("yyyyMMddHHmmss") + ".xls";

                DataTable dt = new RecruitmentMeeting().ExportJobFairDatatable(Request.QueryString["LBLX"]);

                string strdate = DateTime.Now.ToString("yyyyMMddhhmmss");

                string str = Server.HtmlEncode(Request.PhysicalApplicationPath).ToString() + "File\\Excel\\" + filename;

                string file = Utility.ExcelHelper.DataTableToExcel(dt, str);

                return File(file, "application/vnd.ms-excel", filename);

            }

            catch (Exception)

            {

                return null;

            }

        }

其中时间格式算个坑吧，第一次导出的时候时间无转换，导出的excel打开时间的列都是#####，

        public DataTable ExportJobFairDatatable(string lblx)

        {

            try

            {

                //生成execl

                string name = "招聘会列表";

                ZphListParam cs = new ZphListParam();

                cs.MYHS = ;

                cs.YM = ;

                cs.LBLX = lblx;

                cs.PXFS = "ASC";

                cs.PXZD = "DHMC";

                ProcessResult pro = new RecruitmentMeeting().Query(cs);

                招聘会查询结果列表对象 ZPH = JsonHelper.JsonDeserialize<招聘会查询结果列表对象>(pro.ResultJson);

                IList<JobFair> rows = new List<JobFair>();

                foreach (ZhaopinhuiJson4Query item in ZPH.Result.rows)

                {

                    JobFair jf = new JobFair();
　　　　　　　　　　　　//Common.DecodeString方法是用于加密后的数据解码的

                    jf.招聘会名称 = Common.DecodeString(item.DHMC);

                    jf.开始时间 = Convert.ToDateTime(item.KSSJ).Year + "年" + Convert.ToDateTime(item.KSSJ).Month + "月" + Convert.ToDateTime(item.KSSJ).Day + "日";

                    jf.结束时间 = Convert.ToDateTime(item.JSSJ).Year + "年" + Convert.ToDateTime(item.JSSJ).Month + "月" + Convert.ToDateTime(item.JSSJ).Day + "日";

                    jf.地点 = Common.DecodeString(item.DZ);

                    rows.Add(jf);

                }

                DataTable dt = ExcelHelper.ToDataTable<JobFair>(rows);

                if (int.Parse(lblx) == )

                {

                    dt.Columns.Add("空余展位/总展位");

                    for (int i = ; i < ZPH.Result.rows.Count; i++)

                    {

                        dt.Rows[i]["空余展位/总展位"] = ZPH.Result.rows[i].KYZW + "/" + ZPH.Result.rows[i].ZZWS;

                    }

                }

                return dt;

            }

            catch (Exception)

            {

                return null;

            }

        }

    /// <summary>

    /// 公共招聘会导出模型

    /// </summary>

    public class JobFair

    {

        /// <summary>

        /// 招聘会名称

        /// 使用前需解码

        /// </summary>

        public string 招聘会名称 { get; set; }

        /// <summary>

        /// 开始时间

        /// yyyy-MM-dd HH:mm:ss

        /// </summary>

        public string 开始时间 { get; set; }

        /// <summary>

        /// 结束时间

        /// yyyy-MM-dd HH:mm:ss

        /// </summary>

        public string 结束时间 { get; set; }

        /// <summary>

        /// 地址

        /// 使用前需解码

        /// </summary>

        public string 地点 { get; set; }

    }

实际上如果直接用datatable会更快一点，但是因为其他地方也用到了所以为了节约时间直接进行了2次转换。

如果有需要的可以直接把导出的excel文件的方法重载一下。

巴特西

MVC中FileResult 返回类型返回Excel

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