网页html格式导出Excel.xls
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2022-07-07 09:06:54
1.创建excel方法 /// /// 创建Excel表格 /// /// 数据流 /// 文件名称 public static void Cre ......
1.创建excel方法
/// <summary>
/// 创建Excel表格
/// </summary>
/// <param name="dt">数据流</param>
/// <param name="FileName">文件名称</param>
public static void CreateExcel(DataTable dt, string FileName)
{
StringBuilder strb = new StringBuilder();
strb.Append(" <html xmlns:o=\"urn:schemas-microsoft-com:office:office\"");
strb.Append("xmlns:x=\"urn:schemas-microsoft-com:office:excel\"");
strb.Append("xmlns=\"http://www.w3.org/TR/REC-html40\">");
strb.Append(" <head> <meta http-equiv='Content-Type' content='text/html; charset=gb2312'>");
strb.Append(" <style>");
strb.Append(".xl26");
strb.Append(" {mso-style-parent:style0;");
strb.Append(" font-family:\"Times New Roman\", serif;");
strb.Append(" mso-font-charset:0;");
strb.Append(" mso-number-format:\"@\";}");
strb.Append(" </style>");
strb.Append(" <xml>");
strb.Append(" <x:ExcelWorkbook>");
strb.Append(" <x:ExcelWorksheets>");
strb.Append(" <x:ExcelWorksheet>");
strb.Append(" <x:Name>Sheet1 </x:Name>");
strb.Append(" <x:WorksheetOptions>");
strb.Append(" <x:DefaultRowHeight>285 </x:DefaultRowHeight>");
strb.Append(" <x:Selected/>");
strb.Append(" <x:Panes>");
strb.Append(" <x:Pane>");
strb.Append(" <x:Number>3 </x:Number>");
strb.Append(" <x:ActiveCol>1 </x:ActiveCol>");
strb.Append(" </x:Pane>");
strb.Append(" </x:Panes>");
strb.Append(" <x:ProtectContents>False </x:ProtectContents>");
strb.Append(" <x:ProtectObjects>False </x:ProtectObjects>");
strb.Append(" <x:ProtectScenarios>False </x:ProtectScenarios>");
strb.Append(" </x:WorksheetOptions>");
strb.Append(" </x:ExcelWorksheet>");
strb.Append(" <x:WindowHeight>6750 </x:WindowHeight>");
strb.Append(" <x:WindowWidth>10620 </x:WindowWidth>");
strb.Append(" <x:WindowTopX>480 </x:WindowTopX>");
strb.Append(" <x:WindowTopY>75 </x:WindowTopY>");
strb.Append(" <x:ProtectStructure>False </x:ProtectStructure>");
strb.Append(" <x:ProtectWindows>False </x:ProtectWindows>");
strb.Append(" </x:ExcelWorkbook>");
strb.Append(" </xml>");
strb.Append("");
strb.Append(" </head> <body> <table align=\"center\" style='border-collapse:collapse;table-layout:fixed'> <tr>");
//写列标题
int columncount = dt.Columns.Count;
for (int columi = 0; columi < columncount; columi++)
{
strb.Append(" <td> <b>" + dt.Columns[columi] + " </b> </td>");
}
strb.Append(" </tr>");
//写数据
for (int i = 0; i < dt.Rows.Count; i++)
{
strb.Append(" <tr>");
for (int j = 0; j < dt.Columns.Count; j++)
{
strb.Append(" <td class='xl26'>" + dt.Rows[i][j].ToString() + " </td>");
}
strb.Append(" </tr>");
}
strb.Append(" </table>");
strb.Append(" </body> </html>");
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.Buffer = true;
HttpContext.Current.Response.Charset = "GB2312";
HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + FileName);
HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");//设置输出流为简体中文
HttpContext.Current.Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。
HttpContext.Current.Response.Write(strb);
HttpContext.Current.Response.End();
}
2.List集合转DateTable，根据属性特性[System.ComponentModel.Description("列名称")]指定名称，没有指定名称列则不会导出
#region List集合转DateTable
/// <summary>
/// List集合转DateTable
/// </summary>
/// <typeparam name="T">泛型类</typeparam>
/// <param name="items">参数名</param>
/// <returns></returns>
private DataTable ToDataTable<T>(List<T> items)
{
var tb = new DataTable(typeof(T).Name);
List<PropertyInfo> props = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance).ToList();
#region MyRegion
//foreach (PropertyInfo prop in props)
//{
// string name = "";
// //获取特性值
// object[] da = prop.GetCustomAttributes(typeof(DescriptionAttribute), false);
// if (da.Length != 0)
// {
// name = (da[0] as DescriptionAttribute).Description;
// Type t = GetCoreType(prop.PropertyType);
// tb.Columns.Add(name, t);
// }
// else
// {
// //name = prop.Name;
// props.Remove(prop);
// }
//}
#endregion
for (int i = 0; i < props.Count; i++)
{
string name = "";
//获取特性值
object[] da = props[i].GetCustomAttributes(typeof(DescriptionAttribute), false);
if (da.Length != 0)
{
name = (da[0] as DescriptionAttribute).Description;
Type t = GetCoreType(props[i].PropertyType);
tb.Columns.Add(name, t);
}
else
{
//name = prop.Name;
props.Remove(props[i]);
i--;
}
}
foreach (T item in items)
{
var values = new object[props.Count];
for (int i = 0; i < props.Count; i++)
{
values[i] = props[i].GetValue(item, null);
}
tb.Rows.Add(values);
}
return tb;
}
public static bool IsNullable(Type t)
{
return !t.IsValueType || (t.IsGenericType && t.GetGenericTypeDefinition() == typeof(Nullable<>));
}
public static Type GetCoreType(Type t)
{
if (t != null && IsNullable(t))
{
if (!t.IsValueType)
{
return t;
}
else
{
return Nullable.GetUnderlyingType(t);
}
}
else
{
return t;
}
}
#endregion
3.创建数据源，调用方法
public void UserWithdrawExcelList()
{
//数据源，根据自己需要来取
List<UserWithdrawQueryViewModel> userList = UserWithdrawBLL.GetUserWithdrawListExcel(paramdic);
DataTable dt = ToDataTable<UserWithdrawQueryViewModel>(userList);
#region MyRegion
//DataTable dt = new DataTable();
//dt.Columns.Add("用户名", typeof(String));
//dt.Columns.Add("提现标题", typeof(String));
//dt.Columns.Add("提现总金额", typeof(String));
//dt.Columns.Add("实际到账金额", typeof(String));
//dt.Columns.Add("提现手续费", typeof(String));
//dt.Columns.Add("提现账户", typeof(String));
//dt.Columns.Add("提现状态", typeof(String));
//dt.Columns.Add("创建时间", typeof(DateTime));
//userList.TryForEach(t =>
//{
// dt.Rows.Add(new object[] {
// t.UserName,t.WithTitle,t.WithTotalAmount,t.WithAmount,t.CounterFee,t.BankCode,t.StatusName,t.AddTime
// });
//});
#endregion
DataView dv = dt.DefaultView;//获取表视图
dv.ToTable();//转为表
DataChangeExcel.CreateExcel(dt, DateTime.Now.ToString("yyyyMMddHHmmssffff") + ".xls");
}
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