.Net生成导出Excel

概述

在做.Net web开发的过程中经常需要将查出的数据导成Excel表返给用户，方便用户对数据的处理和汇总。这里我将导出Excel表格的代码做一个总结,这也是我项目中经常用到的，代码简单易懂，使用方便，分享给大家。

1、查询数据，数据需要是datatable

后端代码实例，先给Excel表头转化为中文描述

 public OperationResult CreateExportExcel(Model queryModel)
         {
             string errorMsg;
             DataSet ds = GetService.RunPRC_ConfirmCompSKD(queryModel, out errorMsg);
             if (!string.IsNullOrEmpty(errorMsg))
             {
                 return new OperationResult("", errorMsg);
             }
             if (ds.Tables.Count != )
             {
                 return new OperationResult("", "查询为空");
             }
             DataTable dt = ds.Tables[];
             dt.Columns.Remove(dt.Columns["DeptID"]);
             dt.Columns.Remove(dt.Columns["SearchKey"]);//删除不需要的列
             dt.Columns["FYear"].ColumnName = "年份";
             dt.Columns["FMonth"].ColumnName = "月份";
             dt.Columns["FranchiseeNo"].ColumnName = "编号";
             dt.Columns["FranchiseeName"].ColumnName = "名称";
             dt.Columns["DeptName"].ColumnName = "维护部门";
             dt.Columns["FContractNo"].ColumnName = "合同编号";
             dt.Columns["FDate1"].ColumnName = "起租日期";
             dt.Columns["FDate2"].ColumnName = "止租日期";
             dt.Columns["FNumber"].ColumnName = "收款单编号";
             dt.Columns["FAmount"].ColumnName = "收款金额";
             dt.Columns["FDate"].ColumnName = "收款日期";
             dt.Columns["SkdNo"].ColumnName = "已核销收款单编号";
             dt.Columns["SkdAmount"].ColumnName = "已核销收款金额";
             dt.Columns["SkdDate"].ColumnName = "已核销收款日期";
             return Export(dt, "收款单-");
         }
 　　　　　/// <summary>
         /// 生成导出临时文件
         /// </summary>
         /// <param name="dt"></param>
         /// <param name="preName"></param>
         /// <returns></returns>
         private OperationResult Export(DataTable dt, string preName)
         {
 
             dt.TableName = preName + DateTime.Now.ToString("yyyyMMddHHmmss");
 
             string baseDictory = AppDomain.CurrentDomain.BaseDirectory;
 
             string dirctory = string.Format("{0}Doc", baseDictory);
 
             if (!Directory.Exists(dirctory))
             {
                 Directory.CreateDirectory(dirctory);
             }
 
             string path = string.Format("{1}Doc/{0}.xls", dt.TableName, baseDictory);
 
             string serverPath = path;
 
             if (File.Exists(serverPath))
             {
                 File.Delete(serverPath);
             }
 
             ExcelUtil.SaveAsExcel(serverPath, preName, dt);
 
             bool flag = File.Exists(serverPath);
 
             if (!flag)
             {
                 return new OperationResult("", "生成失败");
             }
 
             var result = new OperationResult("", "success")
             {
                 returnURL = string.Format("/Doc/{0}", Path.GetFileName(serverPath))
             };
 
             return result;
         }

public class OperationResult
    {
        public OperationResult()
        {
        }
 
        public OperationResult(string errCode, string errMsg)
        {
            ErrorCode = errCode;
            ErrorMsg = errMsg;
        }
 
        /// <summary>
        ///     返回状态
        /// </summary>
        public bool Flag { get; set; }
 
        /// <summary>
        ///     返回码
        /// </summary>
        public string ErrorCode { get; set; }
 
        /// <summary>
        ///     返回的URL
        /// </summary>
        public string returnURL { get; set; }
 
        /// <summary>
        ///     返回消息
        /// </summary>
        public string ErrorMsg { get; set; }
        public object ObjectData { get; set; }
        public object rows { get; set; }
 
        public int total { get; set; }
        /// <summary>
        /// 页脚
        /// </summary>
        public object footer { get; set; }
 
    }

前端代码实例：

 function  outExcel() {
            var queryUrl = "/Statistics/D_IComeData/CreateD_MonthIncomeExportExcel";
            var queryModel = form2Json("searchform");
            $.ajax({
                type: "POST",
                url: queryUrl,
                data: queryModel,
                dataType: "JSON",
                success: function (result) {
                    var row = result.rows;
                    if (Util.isValidResult(row)) {
                        if (row.hasOwnProperty("returnURL") && row.returnURL != null) {
                            OpenFrameUrl(row.returnURL);
                        }
                    }
                }
            });
        }
 
function OpenFrameUrl(url) {
        var form = document.createElement("form");
        form.id = "outExcelResult";
        form.action = url;
        form.method = "get";
        document.body.appendChild(form);
        form.submit();
        document.body.removeChild(form);
 
    };