public static List <IFilter> CreateFilters <TTemplate>(ExcelHeaderRow headerRow)
{
Type templateType = typeof(TTemplate);
var key = templateType;
if (Table[key] != null)
{
return((List <IFilter>)Table[key]);
}
List <IFilter> filters = new List <IFilter>();
List <BaseFilterAttribute> attrs = new List <BaseFilterAttribute>();
TypeFilterInfo typeFilterInfo = TypeFilterInfoFlyweight.CreateInstance(typeof(TTemplate), headerRow);
typeFilterInfo.PropertyFilterInfos.ForEach(a => a.FilterAttrs.ForEach(f => attrs.Add(f)));
attrs.Distinct(new FilterAttributeComparer()).ToList().ForEach
(a =>
{
var filter = FilterFactory.CreateInstance(a.GetType());
if (filter != null)
{
filters.Add(filter);
}
});
Table[key] = filters;
return(filters);
}
/// <summary>
/// 将IRow转换为ExcelDataRow
/// </summary>
/// <typeparam name="TTemplate"></typeparam>
/// <param name="row"></param>
/// <param name="headerRow"></param>
/// <returns></returns>
public static ExcelDataRow Convert <TTemplate>(IRow row, ExcelHeaderRow headerRow)
{
Type type = typeof(TTemplate);
ExcelDataRow dataRow = new ExcelDataRow()
{
DataCols = new List <ExcelDataCol>(),
ErrorMsg = string.Empty,
IsValid = true,
RowIndex = row.RowNum
};
//ICell cell;
ExcelDataCol dataCol;
string colName;
string propertyName;
string key;
for (int i = 0; i < headerRow.Cells.Count; i++)
{
colName = headerRow?.Cells?.SingleOrDefault(h => h.ColIndex == i)?.ColName.Trim();
if (colName == null)
{
continue;
}
key = $"{type.FullName}_{i}";
if (Table[key] == null)
{
propertyName = type.GetProperties().ToList().FirstOrDefault(p => p.IsDefined(typeof(ColNameAttribute), false) &&
p.GetCustomAttribute <ColNameAttribute>()?.ColName == colName
)?.Name;
Table[key] = propertyName;
}
dataCol = new ExcelDataCol()
{
ColIndex = i,
ColName = colName,
PropertyName = Table[key]?.ToString(),
RowIndex = row.RowNum,
ColValue = row.GetCell(i) == null ? string.Empty : row.GetCell(i).GetStringValue()
};
dataRow.DataCols.Add(dataCol);
}
return(dataRow);
}
public static TypeFilterInfo CreateInstance(Type importType, ExcelHeaderRow excelHeaderRow)
{
if (importType == null)
{
throw new ArgumentNullException("importDTOType");
}
if (excelHeaderRow == null)
{
throw new ArgumentNullException("excelHeaderRow");
}
var key = importType;
if (Table[key] != null)
{
return((TypeFilterInfo)Table[key]);
}
TypeFilterInfo typeFilterInfo = new TypeFilterInfo()
{
PropertyFilterInfos = new List <PropertyFilterInfo>()
{
}
};
IEnumerable <PropertyInfo> props = importType.GetProperties().ToList().Where(p => p.IsDefined(typeof(ColNameAttribute)));
props.ToList().ForEach(p =>
{
string colName = p.GetCustomAttribute <ColNameAttribute>().ColName;
ExcelCol col = excelHeaderRow.Cells.SingleOrDefault(c => c.ColName == colName);
if (col != null)
{
typeFilterInfo.PropertyFilterInfos.Add(
new PropertyFilterInfo
{
ColIndex = col.ColIndex,
FilterAttrs = p.GetCustomAttributes <BaseFilterAttribute>()?.ToList()
});
}
});
Table[key] = typeFilterInfo;
return(typeFilterInfo);
}
/// <summary>
/// 将Sheet转化为ExcelDataRow集合
/// </summary>
/// <param name="sheet"></param>
/// <param name="startDataRowIndex"></param>
/// <returns></returns>
public static List <ExcelDataRow> Convert <TTemplate>(ISheet sheet, ExcelHeaderRow headerRow, int startDataRowIndex)
{
List <ExcelDataRow> dataRows = new List <ExcelDataRow>();
for (int i = startDataRowIndex; i < sheet.PhysicalNumberOfRows; i++)
{
try
{
dataRows.Add(Convert <TTemplate>(sheet.GetRow(i), headerRow));
}
catch (Exception)
{
var errorindex = i;
throw new Exception("第" + i.ToString() + "条数据解析失败，请检查数据！");
}
}
return(dataRows);
}