private object DeserializeToClass(string input, Type type)
{
if (input.StartsWith("{", StringComparison.Ordinal) == true && input.EndsWith("}", StringComparison.Ordinal) == true)
{
string source = input;
input = input.Substring(1, input.Length - 2);
Dictionary <string, string> keyValue = new Dictionary <string, string>();
foreach (var temp in JsonHelper.ItemReader(input))
{
string key;
string value;
JsonHelper.ItemSpliter(temp, out key, out value);
if (key.StartsWith("\"", StringComparison.Ordinal) == true && key.EndsWith("\"", StringComparison.Ordinal) == true)
{
key = key.Substring(1, key.Length - 2);
}
else
{
throw new JsonDeserializeException(source, type);
}
if (keyValue.ContainsKey(key) == false)
{
keyValue.Add(key, value);
}
else
{
throw new JsonDeserializeException(source, type);
}
}
#region 匿名类。
if (type.Name.Contains("AnonymousType") == true && string.IsNullOrEmpty(type.Namespace) == true)
{
// 获取匿名类唯一构造函数。
ConstructorInfo constructor = type.GetConstructors().Single();
// 获取匿名类构造函数的参数。
ParameterInfo[] parameters = constructor.GetParameters();
// 存放反序列化的参数。
List <object> args = new List <object>();
foreach (ParameterInfo parameter in parameters)
{
// 参数名字。
string parameterName = parameter.Name;
if (keyValue.ContainsKey(parameterName) == true)
{
// json 中存在对应的值。
args.Add(DeserializeToObject(keyValue[parameterName], parameter.ParameterType));
}
else
{
// json 中不存在对应的值，填充类型的默认值。
Type parameterType = parameter.ParameterType;
if (parameterType.IsValueType == true)
{
args.Add(Activator.CreateInstance(parameterType));
}
else
{
args.Add(null);
}
}
}
// 执行构造函数。
return(constructor.Invoke(args.ToArray()));
}
#endregion
object instance;
try
{
instance = Activator.CreateInstance(type, true);
}
catch
{
var constructors = type.GetConstructors(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance).OrderBy(temp => temp.IsPublic == false).ThenBy(temp => temp.GetParameters().Length);
var constructor = constructors.ElementAt(0);
instance = constructor.Invoke(new object[constructor.GetParameters().Length]);
}
#region 字段。
FieldInfo[] fields;
if (JsonHelper._typeFields.TryGetValue(type, out fields) == false)
{
fields = type.GetFields(BindingFlags.Public | BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.Instance);
if (JsonHelper._typeFields.ContainsKey(type) == false)
{
lock (JsonHelper._typeFields)
{
if (JsonHelper._typeFields.ContainsKey(type) == false)
{
JsonHelper._typeFields.Add(type, fields);
}
}
}
}
foreach (FieldInfo field in fields)
{
JsonAttribute attribute = field.GetCustomAttributes(typeof(JsonAttribute), false).FirstOrDefault() as JsonAttribute;
if (attribute != null)
{
if (field.IsPublic == false && attribute.ProcessNonPublic == false)
{
continue;
}
string name;
object value;
if (string.IsNullOrEmpty(attribute.Name) == true)
{
name = field.Name;
}
else
{
name = attribute.Name;
}
if (keyValue.ContainsKey(name) == true)
{
if (attribute.Converter != null)
{
JsonConverter converter = Activator.CreateInstance(attribute.Converter) as JsonConverter;
if (converter != null)
{
bool skip = false;
value = converter.Deserialize(keyValue[name], field.FieldType, ref skip);
if (skip == true)
{
continue;
}
}
else
{
throw new JsonDeserializeException(source, type);
}
}
else
{
value = DeserializeToObject(keyValue[name], field.FieldType);
}
field.SetValue(instance, value);
}
}
else
{
if (field.IsPublic == false)
{
continue;
}
string name = field.Name;
if (keyValue.ContainsKey(name) == true)
{
field.SetValue(instance, DeserializeToObject(keyValue[name], field.FieldType));
}
}
}
#endregion
#region 属性。
PropertyInfo[] properties;
if (JsonHelper._typeProperties.TryGetValue(type, out properties) == false)
{
properties = type.GetProperties(BindingFlags.Public | BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.Instance);
if (JsonHelper._typeProperties.ContainsKey(type) == false)
{
lock (JsonHelper._typeProperties)
{
if (JsonHelper._typeProperties.ContainsKey(type) == false)
{
JsonHelper._typeProperties.Add(type, properties);
}
}
}
}
foreach (PropertyInfo property in properties)
{
if (property.GetIndexParameters().Length == 0)
{
JsonAttribute attribute = property.GetCustomAttributes(typeof(JsonAttribute), false).FirstOrDefault() as JsonAttribute;
if (attribute != null)
{
if (property.CanWrite == false && attribute.ProcessNonPublic == false)
{
continue;
}
MethodInfo setMethod = property.GetSetMethod(true);
if (setMethod == null)
{
continue;
}
string name;
object value;
if (string.IsNullOrEmpty(attribute.Name) == true)
{
name = property.Name;
}
else
{
name = attribute.Name;
}
if (keyValue.ContainsKey(name) == true)
{
if (attribute.Converter != null)
{
JsonConverter converter =
Activator.CreateInstance(attribute.Converter) as JsonConverter;
if (converter != null)
{
bool skip = false;
value = converter.Deserialize(keyValue[name], property.PropertyType, ref skip);
if (skip == true)
{
continue;
}
}
else
{
throw new JsonDeserializeException(source, type);
}
}
else
{
value = DeserializeToObject(keyValue[name], property.PropertyType);
}
setMethod.Invoke(instance, new object[1] {
value
});
}
}
else
{
if (property.CanWrite == false)
{
continue;
}
string name = property.Name;
if (keyValue.ContainsKey(name) == true)
{
property.SetValue(instance, DeserializeToObject(keyValue[name], property.PropertyType), null);
}
}
}
}
#endregion
return(instance);
}
else
{
throw new JsonDeserializeException(input, type);
}
}
private string SerializeClass(object obj)
{
Type type = obj.GetType();
List <string> values = new List <string>();
#region 字段
FieldInfo[] fields;
if (JsonHelper._typeFields.TryGetValue(type, out fields) == false)
{
fields = type.GetFields(BindingFlags.Public | BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.Instance);
if (JsonHelper._typeFields.ContainsKey(type) == false)
{
lock (JsonHelper._typeFields)
{
if (JsonHelper._typeFields.ContainsKey(type) == false)
{
JsonHelper._typeFields.Add(type, fields);
}
}
}
}
foreach (var field in fields)
{
JsonAttribute attribute = field.GetCustomAttributes(typeof(JsonAttribute), false).FirstOrDefault() as JsonAttribute;
string name;
object value;
string valueString;
if (attribute != null)
{
// 不序列化此字段。
if (attribute.Ignore == true)
{
continue;
}
// 非公有字段且不序列化。
if (field.IsPublic == false && attribute.ProcessNonPublic == false)
{
continue;
}
value = field.GetValue(obj);
// 不序列化 null 字段。
if (attribute.IgnoreNull == true && value == null)
{
continue;
}
// 字段是否必须。
if (attribute.Required == true && value == null)
{
throw new ArgumentNullException(field.Name, "该字段不能为 null。");
}
// 检查数量约束。
IEnumerable <object> enumerable = value as IEnumerable <object>;
if (enumerable != null)
{
if (attribute.CountLessThan > -1 && enumerable.Count() >= attribute.CountLessThan)
{
throw JsonCountException.CreateLessThanException(value, attribute.CountLessThan);
}
if (attribute.CountGreaterThan > -1 && enumerable.Count() <= attribute.CountGreaterThan)
{
throw JsonCountException.CreateGreaterThanException(value, attribute.CountGreaterThan);
}
}
// 使用自定义序列化。
if (attribute.Converter != null)
{
JsonConverter converter = (JsonConverter)Activator.CreateInstance(attribute.Converter);
bool skip = false;
valueString = converter.Serialize(value, field.FieldType, ref skip);
if (skip == true)
{
continue;
}
}
else
{
valueString = SerializeObject(value);
}
// 使用自定义映射名字。
if (string.IsNullOrEmpty(attribute.Name) == false)
{
name = "\"" + attribute.Name + "\"";
}
else
{
name = "\"" + field.Name + "\"";
}
}
else
{
if (field.IsPublic == false)
{
continue;
}
name = "\"" + field.Name + "\"";
value = field.GetValue(obj);
valueString = SerializeObject(value);
}
values.Add(name + ":" + valueString);
}
#endregion
#region 属性
PropertyInfo[] properties;
if (JsonHelper._typeProperties.TryGetValue(type, out properties) == false)
{
properties = type.GetProperties(BindingFlags.Public | BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.Instance);
if (JsonHelper._typeProperties.ContainsKey(type) == false)
{
lock (JsonHelper._typeProperties)
{
if (JsonHelper._typeProperties.ContainsKey(type) == false)
{
JsonHelper._typeProperties.Add(type, properties);
}
}
}
}
foreach (var property in properties)
{
if (property.GetIndexParameters().Length == 0)
{
JsonAttribute attribute = property.GetCustomAttributes(typeof(JsonAttribute), false).FirstOrDefault() as JsonAttribute;
string name;
object value;
string valueString;
if (attribute != null)
{
// 不序列化此属性。
if (attribute.Ignore == true)
{
continue;
}
// 非公有属性且不序列化。
if (property.CanRead == false && attribute.ProcessNonPublic == false)
{
continue;
}
value = property.GetGetMethod(true).Invoke(obj, null);
// 不序列化 null 属性。
if (attribute.IgnoreNull == true && value == null)
{
continue;
}
// 属性是否必须。
if (attribute.Required == true && value == null)
{
throw new ArgumentNullException(property.Name, "该属性不能为 null。");
}
// 检查数量约束。
IEnumerable <object> enumerable = value as IEnumerable <object>;
if (enumerable != null)
{
if (attribute.CountLessThan > -1 &&
enumerable.Count() >= attribute.CountLessThan)
{
throw JsonCountException.CreateLessThanException(value,
attribute.CountLessThan);
}
if (attribute.CountGreaterThan > -1 &&
enumerable.Count() <= attribute.CountGreaterThan)
{
throw JsonCountException.CreateGreaterThanException(value,
attribute.CountGreaterThan);
}
}
// 使用自定义序列化。
if (attribute.Converter != null)
{
JsonConverter converter = (JsonConverter)Activator.CreateInstance(attribute.Converter);
bool skip = false;
valueString = converter.Serialize(value, property.PropertyType, ref skip);
if (skip == true)
{
continue;
}
}
else
{
valueString = SerializeObject(value);
}
// 使用自定义映射名字。
if (string.IsNullOrEmpty(attribute.Name) == false)
{
name = "\"" + attribute.Name + "\"";
}
else
{
name = "\"" + property.Name + "\"";
}
}
else
{
if (property.CanRead == false)
{
continue;
}
name = "\"" + property.Name + "\"";
value = property.GetValue(obj, null);
valueString = SerializeObject(value);
}
values.Add(name + ":" + valueString);
}
}
#endregion
return("{" + string.Join(",", values) + "}");
}
