正文
JeasyUI,导出Excel
小程序：扫一扫查出行【扫一扫了解最新限行尾号】
复制小程序
这个是客户端表格导出伪Excel文档. 不知道为啥,超过200条,不能导出,显示网络错误
$.extend($.fn.datagrid.methods, {
//超过200条,不能导出,显示网络错误??
toExcel: function(jq, filename){
return jq.each(function(){
var uri = 'data:application/vnd.ms-excel;base64,'
, template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{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]; }) }
var alink = $('<a style="display:none"></a>').appendTo('body');
var view = $(this).datagrid('getPanel').find('div.datagrid-view');
var ignoreColumnIndex = ;//前3列不导出
//冻结的表格
var table = view.find('div.datagrid-view2 table.datagrid-btable').clone();
var tbody = table.find('>tbody');
view.find('div.datagrid-view1 table.datagrid-btable>tbody>tr').each(function (index) {
$(this).clone().children().prependTo(tbody.children('tr:eq(' + index + ')'));
});
//非冻结表格
var head = view.find('div.datagrid-view2 table.datagrid-htable').clone();
var hbody = head.find('>tbody');
view.find('div.datagrid-view1 table.datagrid-htable>tbody>tr').each(function (index) {
$(this).clone().children().prependTo(hbody.children('tr:eq(' + index + ')'));
});
hbody.prependTo(table);
var ctx = { worksheet: name || 'Worksheet', table: table.html() || '' };
alink[].href = uri + base64(format(template, ctx));
alink[].download = filename;
alink[].click();
alink.remove();
})
},
toExcelUnfreeze: function (jq, filename) {
return jq.each(function () {
var uri = 'data:application/vnd.ms-excel;base64,'
, template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><meta charset="utf-8"/><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{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]; }) }
var alink = $('<a style="display:none"></a>').appendTo('body');
var view = $(this).datagrid('getPanel').find('div.datagrid-view');
//非冻结列的table body
var table = view.find('div.datagrid-view2 table.datagrid-btable').clone();
//非冻结列的table header
var head = view.find('div.datagrid-view2 table.datagrid-htable').clone();
var hbody = head.find('>tbody');
hbody.prependTo(table);
var ctx = { worksheet: filename || 'Worksheet', table: table.html() || '' };
alink[].href = uri + base64(format(template, ctx));
alink[].download = filename;
alink[].click();
alink.remove();
})
},
})
改成服务器端导出
var qry = GetData(keys, values);
//如果 path2 不包括根（例如，如果 path2 没有以分隔符或驱动器规格起始），则结果是两个路径的串联，具有介于其间的分隔符。如果 path2 包括根，则返回 path2。
string wwwroot = Path.Combine(_host.ContentRootPath, "wwwroot"); //改在wwwroot目录下,方便在新窗口打开
string Template = "template.xlsx";
string templateFilePath = Path.Combine(wwwroot, Template);
string pureFileName = DateTime.Now.ToString("yyyyMMddHHmmssfff_") + "Achievement";
//每天一个文件夹
string destFilePath = wwwroot + "\\Achievement\\" + pureFileName + ".xlsx";
try
{
using (ExcelPackage ep = new ExcelPackage(new FileInfo(templateFilePath)))
{
ExcelWorksheet ws = ep.Workbook.Worksheets[]; //第1张Sheet
int colStart = ws.Dimension.Start.Column; //工作区开始列,start=1
int colEnd = ws.Dimension.End.Column; //工作区结束列
int rowStart = ws.Dimension.Start.Row; //工作区开始行号,start=1
int rowEnd = ws.Dimension.End.Row; //工作区结束行号
var lst = qry.ToList();
for (int i = ; i < lst.Count; i++)
{
int j = ;
ws.Cells[i + , j++].Value = lst[i].BelongDate;
ws.Cells[i + , j++].Value = lst[i].Region;
ws.Cells[i + , j++].Value = lst[i].DepName;
ws.Cells[i + , j++].Value = lst[i].ProjectName;
ws.Cells[i + , j++].Value = lst[i].Remark;
}
ws.Calculate(); //重算公式
ep.SaveAs(new FileInfo(destFilePath));
return Download(destFilePath);
}
}
catch (Exception ex)
{
return Json(new { isSuccess = false, message = "失败:" + ex.Message }, "text/html");
}
}
之前导出时,还用了一个错误方法,这个方法在数据量少时,还能正常导出,数据量超过几M就显示网络错误.
FileInfo DownloadFile = new FileInfo(FullFileName);
if (DownloadFile.Exists)
{
Response.Clear();
Response.Headers.Clear();
Response.ContentType = "application/octet-stream";
Response.Headers.Add("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(DownloadFile.Name, System.Text.Encoding.UTF8));
Response.Headers.Add("Content-Length", DownloadFile.Length.ToString());
Response.SendFileAsync(DownloadFile.FullName);
}
return Content("")
改成这样就正常了
FileInfo DownloadFile = new FileInfo(FullFileName);
return File(file2byte(FullFileName), "application/octet-stream", HttpUtility.UrlEncode(DownloadFile.Name, System.Text.Encoding.UTF8)); //从文件读取 byte
public byte[] file2byte(string fileName)
{
// 打开文件
FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
// 读取文件的 byte[]
byte[] bytes = new byte[fileStream.Length];
fileStream.Read(bytes, 0, bytes.Length);
fileStream.Close();
return bytes; }
