初始化项目

lib/model/message.dart

@@ -0,0 +1,19 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'message.g.dart';
+
+@JsonSerializable()
+class MessageModel {
+  String? title;//消息名称
+  String? did;//消息设备id
+  String? userId;//消息用户id
+  String? userName;//消息用户名称
+  DateTime? createTime;//消息创建时间
+  int? type;//消息类型
+
+
+  MessageModel();
+  static MessageModel fromJson(Map<String, dynamic> json) =>
+      _$MessageModelFromJson(json);
+  Map<String, dynamic> toJson() => _$MessageModelToJson(this);
+}