dart - 将类转换为 JSON 或 List

Question

如何将这个类转换成 JSON 或 List？

class cliente {
  int id;
  String nome;
  String apelido;
  String sexo;
  String status;
}

编辑

我换了类，我的情况很好:

class client {
  Map<String, dynamic> fields => {
  "id": "",
  "name": "",
  "nickname": "",
  "sex": "",
  "status": "",
}

然后我使用:

client.fields["id"]   = 1;
client.fields["name"] = "matheus";

sqlite.rowInsert("insert into client(id, name)", client.fields.Keys.toList(), client.fields.Values.toList());

Answer 1

只需在您的类中创建一个方法并返回 Map<String, dynamic>

  class cliente {
    int id;
    String nome;
    String apelido;
    String sexo;
    String status;

    Map<String, dynamic> toJson() => {
          'id': id,
          'nome': nome,
          'apelido': apelido,
          'sexo': sexo,
          'status': status,
        };
  }

并以它为例:

final dataObject = new client(); 
...fill your object
final jsonData = dataObject.toJson();  

您也可以尝试使用此包来避免写入所有字段:https://pub.dartlang.org/packages/json_serializable