c#匯出Excel
阿新 • • 發佈：2019-01-14
1、方法一：後臺為主要操作
後臺方法
using NPOI.SS.UserModel; using NPOI.HSSF.UserModel;
public string ExportList(Report entity)
{
// 獲取匯出資料
List<ReportQtyCity> list = ComplaintBusiness.GetComplaintQtyCityExportList(entity);
if (list.Count == 0)
return "NoData";
var i = 0;
//模板路徑
string templetFileName = HttpContext.Current.Server.MapPath("~/Templete/模板.xls");
//儲存路徑
string reportFileName = HttpContext.Current.Server.MapPath("~/Download/Export/" + DateTime.Now.ToString("統計匯出報表 yyyyMMddHHmmss") + ".xls");
//讀取模板
FileInfo fileInfo = new FileInfo(templetFileName);
//如果模板存在，開啟並讀取
if (fileInfo.Exists)
fileInfo.CopyTo(reportFileName, true);
else
return "NoTemplete";
FileStream file = new FileStream(reportFileName, FileMode.Open, FileAccess.Read);
IWorkbook work = new HSSFWorkbook(file); //讀取模板檔案
string sheetName = "明細";
work.SetSheetName(0, sheetName);
ISheet sheet = work.GetSheet(sheetName);
IRow row = null;
var j = 2;
//建立並設定列表格線樣式
ICellStyle style = work.CreateCellStyle();
style.BorderBottom = BorderStyle.Thin;
style.BorderLeft = BorderStyle.Thin;
style.BorderRight = BorderStyle.Thin;
style.BorderTop = BorderStyle.Thin;
//迴圈資料
foreach (var item in list)
{
//從第三行建立行
row = sheet.CreateRow(j);
j++;
i++;
// 建立列，賦值
// 序號
ICell cell0 = row.CreateCell(0);
cell0.CellStyle = style;
cell0.SetCellValue(i);
// 開始時間
ICell cell1 = row.CreateCell(1);
cell1.CellStyle = style;
if (item.DateStart != null)
{
cell1.SetCellValue(entity.DateStart.GetValueOrDefault().ToString("yyyy-MM-dd"));
}
// 結束時間
ICell cell2 = row.CreateCell(2);
cell2.CellStyle = style;
if (item.DateEnd != null)
{
cell2.SetCellValue(item.DateEnd.GetValueOrDefault().ToString("yyyy-MM-dd"));
}
ICell cell3 = row.CreateCell(3);
cell3.CellStyle = style;
if (!string.IsNullOrEmpty(item.City))
{
cell3.SetCellValue(item.City);
}
ICell cell4 = row.CreateCell(4);
cell4.CellStyle = style;
if (!string.IsNullOrEmpty(item.CompanyName))
{
cell4.SetCellValue(item.CompanyName);
}
ICell cell5 = row.CreateCell(5);
cell5.CellStyle = style;
if (!string.IsNullOrEmpty(item.ParkName))
{
cell5.SetCellValue(item.ParkName);
}
}
using (FileStream filess = System.IO.File.OpenWrite(reportFileName))
{
work.Write(filess);
}
FileInfo filet = new FileInfo(reportFileName);
var msg = filet.FullName;
msg = "/Download/Export/" + msg.Substring(msg.LastIndexOf("\\") + 1);
work.Close();
Dispose();
return msg;
}
前臺處理：// 資料篩選條件
var actionParam = GetActionParam();
$.InvokeAjaxV3({
async: false,
url: "Api/V3/Report/Export",
data: actionParam,
callBack: function (data) {
var jsonResult = $.StrToJson(data).Results;
if (data == "NoData") {
$.messager.alert("匯出提示", "暫無資料，請重新選擇查詢條件");
} else if (data == "NoTemplete") {
$.messager.alert("匯出提示", "找不到模板，無法匯出");
} else
location.href = HttpWcf + jsonResult;
}
});
2、方法二：前臺為主要操作<a href="javascript:void(0)" id="toexcel" class="btn btn-primary btn-sm "> <i class="fa fa-file-excel-o"></i> 匯出到EXCEL</a>
<table id="tableExcel" style="display: none"> <thead class="text-nowrap"> </thead> <tfoot></tfoot> </table>
$("#toexcel").on('click', function () {
$.InvokeAjaxV3({
url: "Api/V3/Statistic/Export",
data: {
},
async: false,
callBack: function (data) {
var obj = $.StrToJson(data).Results;
var html = '' +
'<tr>' +
'<th >企業名稱</th>' +
'</tr>';
var allHouseArea = 0, allEmployeeCount = 0, allSatisfiedRate = 0;
for (var o in obj) {
if (obj.hasOwnProperty(o)) {
html += '<tr>' +
'<td >' + obj[o].CompanyName + '</td>' +
'</tr>';
}
}
$("#tableExcel").html(html);
FunTableToExcel('tableExcel');
}
});
var idTmr;
function getExplorer() {
var explorer = window.navigator.userAgent;
//ie
if (explorer.indexOf("MSIE") >= 0) {
return 'ie';
}
//firefox
else if (explorer.indexOf("Firefox") >= 0) {
return 'Firefox';
}
//Chrome
else if (explorer.indexOf("Chrome") >= 0) {
return 'Chrome';
}
//Opera
else if (explorer.indexOf("Opera") >= 0) {
return 'Opera';
}
//Safari
else if (explorer.indexOf("Safari") >= 0) {
return 'Safari';
}
}
function FunTableToExcel(tableid) {
if (getExplorer() == 'ie') {
var curTbl = document.getElementById(tableid);
var oXL = new ActiveXObject("Excel.Application");
var oWB = oXL.Workbooks.Add();
var xlsheet = oWB.Worksheets(1);
var sel = document.body.createTextRange();
sel.moveToElementText(curTbl);
sel.select();
sel.execCommand("Copy");
xlsheet.Paste();
oXL.Visible = true;
try {
var fname = oXL.Application.GetSaveAsFilename("Excel.xls", "Excel Spreadsheets (*.xls), *.xls");
} catch (e) {
print("Nested catch caught " + e);
} finally {
oWB.SaveAs(fname);
oWB.Close(savechanges = false);
oXL.Quit();
oXL = null;
idTmr = window.setInterval("Cleanup();", 1);
}
}
else {
tableToExcel(tableid);
}
}
function Cleanup() {
window.clearInterval(idTmr);
CollectGarbage();
}
var tableToExcel = (function () {
var uri = 'data:application/vnd.ms-excel;base64,',
template = '<html><head><meta charset="UTF-8"></head><body><table border="1px">{table}</table></body></html>',
base64 = function (s) { return window.btoa(unescape(encodeURIComponent(s))) },
format = function (s, c) {
return s.replace(/{(\w+)}/g,
function (m, p) { return c[p]; });
}
return function (table, name) {
if (!table.nodeType) table = document.getElementById(table);
var ctx = { worksheet: name || 'Worksheet', table: table.innerHTML }
window.location.href = uri + base64(format(template, ctx));
}
})();