private static void AddTypeProperties(Type type) { if (type_properties.ContainsKey(type)) { return; } xuexueJsonClass xxjc = type.GetCustomAttribute <xuexueJsonClass>(); if (xxjc == null) { //尝试查找用户的定义 if (JsonTypeRegister.dictTypeXXJC.ContainsKey(type)) { xxjc = JsonTypeRegister.dictTypeXXJC[type]; } } if (xxjc == null) { xxjc = JsonTypeRegister.defaultClassAttribute;//使用一个当前的默认设置 } List <PropertyMetadata> props = new List <PropertyMetadata>(); foreach (PropertyInfo p_info in type.GetProperties(xxjc.propertyflags)) { if (p_info.Name == "Item") { continue; } //如果直接在忽略类型列表里了就直接忽略 if (JsonTypeRegister.listIgnoreClass.Contains(p_info.PropertyType) || JsonTypeRegister.listIgnoreClass.Contains(p_info.PropertyType.GetElementType())) { continue; } //对System.Collections.Generic中的数据结构进行忽略判断 if (p_info.PropertyType.IsGenericType) { bool isIgnore = false; Type[] gat = p_info.PropertyType.GetGenericArguments(); for (int i = 0; i < gat.Length; i++) { if (JsonTypeRegister.listIgnoreClass.Contains(gat[i])) { isIgnore = true; break; } } if (isIgnore) { continue; } } //如果存在特别要使能的成员名List if (xxjc.enableMembers != null && xxjc.enableMembers.Contains(p_info.Name)) { PropertyMetadata p_data = new PropertyMetadata(); p_data.Info = p_info; p_data.IsField = false; p_data.Priority = 0; props.Add(p_data); continue; } if (xxjc.ignoreMembers != null && xxjc.ignoreMembers.Contains(p_info.Name)) { continue; //应该被忽略 } if (p_info.IsDefined(typeof(xuexueJson), false)) { PropertyMetadata p_data = new PropertyMetadata(); p_data.Info = p_info; p_data.IsField = false; p_data.Priority = p_info.GetCustomAttribute <xuexueJson>().priority; props.Add(p_data); continue; } if (p_info.IsDefined(typeof(xuexueJsonIgnore), false)) { continue; } if (xxjc.defaultPropertyConstraint == true)//如果默认设置是开启 { PropertyMetadata p_data = new PropertyMetadata(); p_data.Info = p_info; p_data.IsField = false; p_data.Priority = 0; props.Add(p_data); } } foreach (FieldInfo f_info in type.GetFields(xxjc.fieldflags)) { //如果直接在忽略类型列表里了就直接忽略 if (JsonTypeRegister.listIgnoreClass.Contains(f_info.FieldType) || JsonTypeRegister.listIgnoreClass.Contains(f_info.FieldType.GetElementType())) { continue; } //对System.Collections.Generic中的数据结构进行忽略判断 if (f_info.FieldType.IsGenericType) { bool isIgnore = false; Type[] gat = f_info.FieldType.GetGenericArguments(); for (int i = 0; i < gat.Length; i++) { if (JsonTypeRegister.listIgnoreClass.Contains(gat[i])) { isIgnore = true; break; } } if (isIgnore) { continue; } } if (xxjc.enableMembers != null && xxjc.enableMembers.Contains(f_info.Name)) { PropertyMetadata p_data = new PropertyMetadata(); p_data.Info = f_info; p_data.IsField = true; p_data.Priority = 0; props.Add(p_data); continue; } if (xxjc.ignoreMembers != null && xxjc.ignoreMembers.Contains(f_info.Name)) { continue; //应该被忽略 } if (f_info.IsDefined(typeof(xuexueJson), false)) { PropertyMetadata p_data = new PropertyMetadata(); p_data.Info = f_info; p_data.IsField = true; p_data.Priority = f_info.GetCustomAttribute <xuexueJson>().priority; props.Add(p_data); continue; //应该被忽略 } if (f_info.IsDefined(typeof(xuexueJsonIgnore), false)) { continue; } if (xxjc.defaultFieldConstraint == true)//如果默认设置是开启 { PropertyMetadata p_data = new PropertyMetadata(); p_data.Info = f_info; p_data.IsField = true; p_data.Priority = 0; props.Add(p_data); } } props.Sort((p1, p2) => { return(p1.Priority - p2.Priority); }); lock (type_properties_lock) { try { type_properties.Add(type, props); } catch (ArgumentException) { return; } } }
private static object ReadValue(Type inst_type, JsonReader reader, object instance = null) { reader.Read(); if (reader.Token == JsonToken.ArrayEnd) { return(null); } Type underlying_type = Nullable.GetUnderlyingType(inst_type); Type value_type = underlying_type ?? inst_type; if (reader.Token == JsonToken.Null) { #if NETSTANDARD1_5 if (inst_type.IsClass() || underlying_type != null) { return(null); } #else if (inst_type.IsClass || underlying_type != null) { return(null); } #endif throw new JsonException(String.Format( "Can't assign null to an instance of type {0}", inst_type)); } if (reader.Token == JsonToken.Double || reader.Token == JsonToken.Int || reader.Token == JsonToken.Long || reader.Token == JsonToken.String || reader.Token == JsonToken.Boolean) { Type json_type = reader.Value.GetType(); if (value_type.IsAssignableFrom(json_type)) { return(reader.Value); } // If there's a custom importer that fits, use it if (custom_importers_table.ContainsKey(json_type) && custom_importers_table[json_type].ContainsKey( value_type)) { ImporterFunc importer = custom_importers_table[json_type][value_type]; return(importer(reader.Value)); } // Maybe there's a base importer that works if (base_importers_table.ContainsKey(json_type) && base_importers_table[json_type].ContainsKey( value_type)) { ImporterFunc importer = base_importers_table[json_type][value_type]; return(importer(reader.Value)); } // Maybe it's an enum #if NETSTANDARD1_5 if (value_type.IsEnum()) { return(Enum.ToObject(value_type, reader.Value)); } #else if (value_type.IsEnum) { return(Enum.ToObject(value_type, reader.Value)); } #endif // Try using an implicit conversion operator MethodInfo conv_op = GetConvOp(value_type, json_type); if (conv_op != null) { return(conv_op.Invoke(null, new object[] { reader.Value })); } // No luck throw new JsonException(String.Format( "Can't assign value '{0}' (type {1}) to type {2}", reader.Value, json_type, inst_type)); } //object instance = null; //将instance作为参数传进来 if (reader.Token == JsonToken.ArrayStart) { AddArrayMetadata(inst_type); ArrayMetadata t_data = array_metadata[inst_type]; if (!t_data.IsArray && !t_data.IsList) { throw new JsonException(String.Format( "Type {0} can't act as an array", inst_type)); } IList list; Type elem_type; if (!t_data.IsArray) { list = (IList)Activator.CreateInstance(inst_type); elem_type = t_data.ElementType; } else { list = new ArrayList(); elem_type = inst_type.GetElementType(); } while (true) { object item = ReadValue(elem_type, reader); if (item == null && reader.Token == JsonToken.ArrayEnd) { break; } list.Add(item); } if (t_data.IsArray) { int n = list.Count; instance = Array.CreateInstance(elem_type, n); for (int i = 0; i < n; i++) { ((Array)instance).SetValue(list[i], i); } } else { instance = list; } } else if (reader.Token == JsonToken.ObjectStart) { AddObjectMetadata(value_type); ObjectMetadata t_data = object_metadata[value_type]; //这里是创建这个对象本身 if (instance == null) { instance = Activator.CreateInstance(value_type); } while (true) { reader.Read(); if (reader.Token == JsonToken.ObjectEnd) { break; } string property = (string)reader.Value; if (t_data.Properties.ContainsKey(property)) { PropertyMetadata prop_data = t_data.Properties[property]; if (prop_data.IsField) { ((FieldInfo)prop_data.Info).SetValue( instance, ReadValue(prop_data.Type, reader)); } else { PropertyInfo p_info = (PropertyInfo)prop_data.Info; if (p_info.CanWrite) { p_info.SetValue( instance, ReadValue(prop_data.Type, reader), null); } else { ReadValue(prop_data.Type, reader); } } } else { if (!t_data.IsDictionary) { if (!reader.SkipNonMembers) { throw new JsonException(String.Format( "The type {0} doesn't have the " + "property '{1}'", inst_type, property)); } else { ReadSkip(reader); continue; } } ((IDictionary)instance).Add( property, ReadValue( t_data.ElementType, reader)); } } } return(instance); }
private static void AddObjectMetadata(Type type) { if (object_metadata.ContainsKey(type)) { return; } xuexueJsonClass xxjc = type.GetCustomAttribute <xuexueJsonClass>(); if (xxjc == null) { //尝试查找用户的定义 if (JsonTypeRegister.dictTypeXXJC.ContainsKey(type)) { xxjc = JsonTypeRegister.dictTypeXXJC[type]; } } if (xxjc == null) { xxjc = JsonTypeRegister.defaultClassAttribute;//使用一个当前的默认设置 } IList <PropertyMetadata> props = new List <PropertyMetadata>(); ObjectMetadata data = new ObjectMetadata(); if (type.GetInterface("System.Collections.IDictionary") != null) { data.IsDictionary = true; } data.Properties = new Dictionary <string, PropertyMetadata> (); foreach (PropertyInfo p_info in type.GetProperties(xxjc.propertyflags)) { if (p_info.Name == "Item") { ParameterInfo[] parameters = p_info.GetIndexParameters(); if (parameters.Length != 1) { continue; } if (parameters[0].ParameterType == typeof(string)) { data.ElementType = p_info.PropertyType; } continue; } PropertyMetadata p_data = new PropertyMetadata(); p_data.Info = p_info; p_data.Type = p_info.PropertyType; data.Properties.Add(p_info.Name, p_data); } foreach (FieldInfo f_info in type.GetFields(xxjc.fieldflags)) { PropertyMetadata p_data = new PropertyMetadata(); p_data.Info = f_info; p_data.IsField = true; p_data.Type = f_info.FieldType; data.Properties.Add(f_info.Name, p_data); } lock (object_metadata_lock) { try { object_metadata.Add(type, data); } catch (ArgumentException) { return; } } }