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62 lines
1.9 KiB
62 lines
1.9 KiB
class OtaConfigResp {
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// 单例实例
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static OtaConfigResp? _instance;
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// 单例访问器（增加空安全保护）
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static OtaConfigResp get instance {
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if (_instance == null) {
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throw Exception("User must be initialized first");
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}
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return _instance!;
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}
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// 最终属性（不可变）
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final String? id;
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final int? factory;
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final int? devicetype;
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final String? devicename;
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final String? systemversion;
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final String? updatepackageaddress;
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final String? updatedescription;
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// 私有构造函数
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OtaConfigResp._({
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this.id,
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this.factory,
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this.devicetype,
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this.devicename,
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this.systemversion,
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this.updatepackageaddress,
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this.updatedescription,
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});
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factory OtaConfigResp.fromJson(Map<String, dynamic> json) {
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print("数据获取fronTokenJson${json}");
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// 修复1：安全获取嵌套的 user 字段
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final infoData = json['product'] as Map<String, dynamic>?; // 允许空值
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// 更新单例实例
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return _instance = OtaConfigResp._(
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id: (infoData?['id'] as String?) ?? '',
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factory: (infoData?['factoryid'] as int?) ?? 0,
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devicetype: (infoData?['devicetype'] as int?) ?? 0,
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devicename: (infoData?['devicename'] as String?) ?? '',
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systemversion: (infoData?['systemversion'] as String?) ?? '',
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updatepackageaddress:
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(infoData?['updatepackageaddress'] as String?) ?? '',
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updatedescription: (infoData?['updatedescription'] as String?) ?? '',
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);
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}
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// 完整的JSON序列化
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Map<String, dynamic> toJson() => {
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'user': {
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'id': instance.id,
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'factory': instance.factory,
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'devicetype': instance.devicetype,
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'devicename': instance.devicename,
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'systemversion': instance.systemversion,
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'updatepackageaddress': instance.updatepackageaddress,
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'updatedescription': instance.updatedescription,
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}
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};
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}
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