/// <summary>
/// 通过反射取自定义属性
/// </summary>
/// <typeparam name="T"></typeparam>
public static EntityAttribute DisplaySelfAttribute <T>() where T : class
{
string tableName = string.Empty;
List <string> listColumnName = new List <string>();
List <string> insertListColumnName = new List <string>();
List <string> updateListColumnName = new List <string>();
Type objType = typeof(T);
//取属性上的自定义特性
foreach (PropertyInfo propInfo in objType.GetProperties())
{
object[] objAttrs = propInfo.GetCustomAttributes(typeof(EnitityMappingAttribute), true);
if (objAttrs.Length > 0)
{
EnitityMappingAttribute attr = objAttrs[0] as EnitityMappingAttribute;
if (attr != null)
{
listColumnName.Add(attr.ColumnName); //列名
if (attr.InsterIgnoreColumn == false)
{
insertListColumnName.Add(attr.ColumnName);
}
if (attr.UpdateIgnoreColumn == false)
{
updateListColumnName.Add(attr.ColumnName);
}
}
}
}
//取类上的自定义特性
object[] objs = objType.GetCustomAttributes(typeof(EnitityMappingAttribute), true);
foreach (object obj in objs)
{
EnitityMappingAttribute attr = obj as EnitityMappingAttribute;
if (attr != null)
{
tableName = attr.TableName; //表名只有获取一次
break;
}
}
if (string.IsNullOrEmpty(tableName))
{
tableName = objType.Name.Replace("Entity", "");
}
return(new EntityAttribute {
TableName = tableName, ListColumnName = listColumnName, InsertListColumnName = insertListColumnName, UpdateListColumnName = updateListColumnName
});
}
/// <summary>
/// 通过反射取自定义属性
/// </summary>
/// <typeparam name="T"></typeparam>
private static void DisplaySelfAttribute <T>() where T : class, new()
{
string tableName = string.Empty;
List <string> listColumnName = new List <string>();
Type objType = typeof(T);
//取属性上的自定义特性
foreach (PropertyInfo propInfo in objType.GetProperties())
{
object[] objAttrs = propInfo.GetCustomAttributes(typeof(EnitityMappingAttribute), true);
if (objAttrs.Length > 0)
{
EnitityMappingAttribute attr = objAttrs[0] as EnitityMappingAttribute;
if (attr != null)
{
listColumnName.Add(attr.ColumnName); //列名
}
}
}
//取类上的自定义特性
object[] objs = objType.GetCustomAttributes(typeof(EnitityMappingAttribute), true);
foreach (object obj in objs)
{
EnitityMappingAttribute attr = obj as EnitityMappingAttribute;
if (attr != null)
{
tableName = attr.TableName;//表名只有获取一次
break;
}
}
if (string.IsNullOrEmpty(tableName))
{
tableName = objType.Name;
}
Console.WriteLine(string.Format("The tablename of the entity is:{0} ", tableName));
if (listColumnName.Count > 0)
{
Console.WriteLine("The columns of the table are as follows:");
foreach (string item in listColumnName)
{
Console.WriteLine(item);
}
}
}