private Dictionary <string, JdAttribute> GetJdAttributes(Type type)
{
Dictionary <string, JdAttribute> tas = null;
bool inc = attrs.TryGetValue(type.FullName, out tas);
if (inc && tas != null) // 从缓存中获取类属性元数据
{
return(tas);
}
else // 创建新的类属性元数据缓存
{
tas = new Dictionary <string, JdAttribute> ();
}
PropertyInfo[] pis = type.GetProperties();
foreach (PropertyInfo pi in pis)
{
JdAttribute ta = new JdAttribute();
ta.Method = pi.GetSetMethod();
// 获取对象属性名称
XmlElementAttribute[] xeas = pi.GetCustomAttributes(typeof(XmlElementAttribute), true) as XmlElementAttribute[];
if (xeas != null && xeas.Length > 0)
{
ta.ItemName = xeas [0].ElementName;
}
// 获取列表属性名称
if (ta.ItemName == null)
{
XmlArrayItemAttribute[] xaias = pi.GetCustomAttributes(typeof(XmlArrayItemAttribute), true) as XmlArrayItemAttribute[];
if (xaias != null && xaias.Length > 0)
{
ta.ItemName = xaias [0].ElementName;
}
XmlArrayAttribute[] xaas = pi.GetCustomAttributes(typeof(XmlArrayAttribute), true) as XmlArrayAttribute[];
if (xaas != null && xaas.Length > 0)
{
ta.ListName = xaas [0].ElementName;
}
if (ta.ListName == null)
{
continue;
}
}
// 获取属性类型
if (pi.PropertyType.IsGenericType)
{
Type[] types = pi.PropertyType.GetGenericArguments();
ta.ListType = types [0];
}
else
{
ta.ItemType = pi.PropertyType;
}
tas.Add(pi.Name, ta);
}
attrs [type.FullName] = tas;
return(tas);
}
public object FromJson(IJdReader reader, Type type)
{
object rsp = null;
Dictionary <string, JdAttribute> pas = GetJdAttributes(type);
Dictionary <string, JdAttribute> .Enumerator em = pas.GetEnumerator();
try {
while (em.MoveNext())
{
KeyValuePair <string, JdAttribute> kvp = em.Current;
JdAttribute ta = kvp.Value;
string itemName = ta.ItemName;
string listName = ta.ListName;
if (!reader.HasReturnField(itemName) && (string.IsNullOrEmpty(listName) || !reader.HasReturnField(listName)))
{
continue;
}
object value = null;
if (ta.ListType != null)
{
value = reader.GetListObjects(listName, itemName, ta.ListType, FromJson);
}
else
{
if (typeof(string) == ta.ItemType)
{
object tmp = reader.GetPrimitiveObject(itemName);
if (tmp != null)
{
value = tmp.ToString();
}
}
else if (typeof(long) == ta.ItemType)
{
object tmp = reader.GetPrimitiveObject(itemName);
if (tmp != null)
{
value = ((IConvertible)tmp).ToInt64(null);
}
}
else if (typeof(bool) == ta.ItemType)
{
value = reader.GetPrimitiveObject(itemName);
}
else
{
value = reader.GetReferenceObject(itemName, ta.ItemType, FromJson);
}
}
if (value != null)
{
if (rsp == null)
{
rsp = Activator.CreateInstance(type);
}
ta.Method.Invoke(rsp, new object[] { value });
}
}
} catch (Exception ex) {
throw ex;
}
return(rsp);
}