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Retrofit kotlin 如何用具体的变量名写入数据class

[英]Retrofit kotlin how to write data class with specific variable name

 原文  2023-01-31 23:21:08  8   1    android-studio/ kotlin/ retrofit2

问题描述

这是 json 文件的一部分

"list": {
"2023-01-12": [
  {
"patient_symptom_id": 10,
"date": "2023-01-12",
"datetime": "2023-01-12T11:11:11.000Z",
"symptom_list": [
  {
"symptom_id": 1,
"name": "Color",
"color": "#f4f50b",
"symptom_value_ids": [
  3,
  4
],
"symptom_value_names": [
  "Clear",
  "Cloudy"
],
},
  {
"symptom_id": 2,
"name": "Energy",
"color": "#7ae38b",
"symptom_value_ids": [
  27,
  42
],
"symptom_value_names": [
  "Anxious",
  "High"
],
},
  {
"symptom_id": 4,
"name": "Stool",
"color": "#f2b706",
"symptom_value_ids": [
  14,
  29
],
"symptom_value_names": [
  "Constipation (1-2)",
  "Unable to Pass"
],
},
  {
"symptom_id": 6,
"name": "General Symptoms",
"color": "#951af6",
"symptom_value_ids": [
  31,
  34
],
"symptom_value_names": [
  "Fever",
  "Headache"
],
},
  {
"symptom_id": 7,
"name": "Urinary Symptoms",
"color": "#23a7f1",
"symptom_value_ids": [
  37
],
"symptom_value_names": [
  "Urgency when urinating"
],
},
  {
"symptom_id": 8,
"name": "Menstrual",
"color": "#f413d6",
"symptom_value_ids": [
  45
],
"symptom_value_names": [
  "Light flow"
],
}
],
}
],
"2023-01-26": [
  {
"patient_symptom_id": 11,
"date": "2023-01-26",
"datetime": "2023-01-26T11:38:11.000Z",
"symptom_list": [
  {
"symptom_id": 1,
"name": "Color",
"color": "#f4f50b",
"symptom_value_ids": [
  3,
  4
],
"symptom_value_names": [
  "Clear",
  "Cloudy"
],
},
  {
"symptom_id": 2,
"name": "Energy",
"color": "#7ae38b",
"symptom_value_ids": [
  27,
  42
],
"symptom_value_names": [
  "Anxious",
  "High"
],
},
  {
"symptom_id": 4,
"name": "Stool",
"color": "#f2b706",
"symptom_value_ids": [
  14,
  29
],
"symptom_value_names": [
  "Constipation (1-2)",
  "Unable to Pass"
],
},
  {
"symptom_id": 6,
"name": "General Symptoms",
"color": "#951af6",
"symptom_value_ids": [
  31,
  34
],
"symptom_value_names": [
  "Fever",
  "Headache"
],
},
  {
"symptom_id": 7,
"name": "Urinary Symptoms",
"color": "#23a7f1",
"symptom_value_ids": [
  37
],
"symptom_value_names": [
  "Urgency when urinating"
],
},
  {
"symptom_id": 8,
"name": "Menstrual",
"color": "#f413d6",
"symptom_value_ids": [
  45
],
"symptom_value_names": [
  "Light flow"
],
}
],
},
  {
"patient_symptom_id": 12,
"date": "2023-01-26",
"datetime": "2023-01-26T11:38:11.000Z",
"symptom_list": [
  {
"symptom_id": 1,
"name": "Color",
"color": "#f4f50b",
"symptom_value_ids": [
  3,
  4
],
"symptom_value_names": [
  "Clear",
  "Cloudy"
],
},
  {
"symptom_id": 2,
"name": "Energy",
"color": "#7ae38b",
"symptom_value_ids": [
  27,
  42
],
"symptom_value_names": [
  "Anxious",
  "High"
],
},
  {
"symptom_id": 4,
"name": "Stool",
"color": "#f2b706",
"symptom_value_ids": [
  14,
  29
],
"symptom_value_names": [
  "Constipation (1-2)",
  "Unable to Pass"
],
},
  {
"symptom_id": 6,
"name": "General Symptoms",
"color": "#951af6",
"symptom_value_ids": [
  31,
  34
],
"symptom_value_names": [
  "Fever",
  "Headache"
],
},
  {
"symptom_id": 7,
"name": "Urinary Symptoms",
"color": "#23a7f1",
"symptom_value_ids": [
  37
],
"symptom_value_names": [
  "Urgency when urinating"
],
},
  {
"symptom_id": 8,
"name": "Menstrual",
"color": "#f413d6",
"symptom_value_ids": [
  45
],
"symptom_value_names": [
  "Light flow"
],
}
],
},
  {
"patient_symptom_id": 13,
"date": "2023-01-26",
"datetime": "2023-01-26T11:38:11.000Z",
"symptom_list": [
  {
"symptom_id": 1,
"name": "Color",
"color": "#f4f50b",
"symptom_value_ids": [
  3,
  4
],
"symptom_value_names": [
  "Clear",
  "Cloudy"
],
},
  {
"symptom_id": 2,
"name": "Energy",
"color": "#7ae38b",
"symptom_value_ids": [
  27,
  42
],
"symptom_value_names": [
  "Anxious",
  "High"
],
},
  {
"symptom_id": 4,
"name": "Stool",
"color": "#f2b706",
"symptom_value_ids": [
  14,
  29
],
"symptom_value_names": [
  "Constipation (1-2)",
  "Unable to Pass"
],
},
  {
"symptom_id": 6,
"name": "General Symptoms",
"color": "#951af6",
"symptom_value_ids": [
  31,
  34
],
"symptom_value_names": [
  "Fever",
  "Headache"
],
},
  {
"symptom_id": 7,
"name": "Urinary Symptoms",
"color": "#23a7f1",
"symptom_value_ids": [
  37
],
"symptom_value_names": [
  "Urgency when urinating"
],
},
  {
"symptom_id": 8,
"name": "Menstrual",
"color": "#f413d6",
"symptom_value_ids": [
  45
],
"symptom_value_names": [
  "Light flow"
],
}
],
},
  {
"patient_symptom_id": 80,
"date": "2023-01-26",
"datetime": "2023-01-26T11:11:11.000Z",
"symptom_list": [
  {
"symptom_id": 1,
"name": "Color",
"color": "#f4f50b",
"symptom_value_ids": [
  6
],
"symptom_value_names": [
  "Low"
],
},
  {
"symptom_id": 2,
"name": "Energy",
"color": "#7ae38b",
"symptom_value_ids": [
  27,
  42
],
"symptom_value_names": [
  "Anxious",
  "High"
],
},
  {
"symptom_id": 4,
"name": "Stool",
"color": "#f2b706",
"symptom_value_ids": [
  14,
  29
],
"symptom_value_names": [
  "Constipation (1-2)",
  "Unable to Pass"
],
},
  {
"symptom_id": 6,
"name": "General Symptoms",
"color": "#951af6",
"symptom_value_ids": [
  31,
  34
],
"symptom_value_names": [
  "Fever",
  "Headache"
],
},
  {
"symptom_id": 7,
"name": "Urinary Symptoms",
"color": "#23a7f1",
"symptom_value_ids": [
  37
],
"symptom_value_names": [
  "Urgency when urinating"
],
},
  {
"symptom_id": 8,
"name": "Menstrual",
"color": "#f413d6",
"symptom_value_ids": [
  45
],
"symptom_value_names": [
  "Light flow"
],
}
],
}
],
"2023-01-29": [
  {
"patient_symptom_id": 16,
"date": "2023-01-29",
"datetime": "2023-01-29T11:38:11.000Z",
"symptom_list": [
  {
"symptom_id": 1,
"name": "Color",
"color": "#f4f50b",
"symptom_value_ids": [
  3,
  4
],
"symptom_value_names": [
  "Clear",
  "Cloudy"
],
},
  {
"symptom_id": 2,
"name": "Energy",
"color": "#7ae38b",
"symptom_value_ids": [
  27,
  42
],
"symptom_value_names": [
  "Anxious",
  "High"
],
},
  {
"symptom_id": 4,
"name": "Stool",
"color": "#f2b706",
"symptom_value_ids": [
  14,
  29
],
"symptom_value_names": [
  "Constipation (1-2)",
  "Unable to Pass"
],
},
  {
"symptom_id": 6,
"name": "General Symptoms",
"color": "#951af6",
"symptom_value_ids": [
  31,
  34
],
"symptom_value_names": [
  "Fever",
  "Headache"
],
},
  {
"symptom_id": 7,
"name": "Urinary Symptoms",
"color": "#23a7f1",
"symptom_value_ids": [
  37
],
"symptom_value_names": [
  "Urgency when urinating"
],
},
  {
"symptom_id": 8,
"name": "Menstrual",
"color": "#f413d6",
"symptom_value_ids": [
  45
],
"symptom_value_names": [
  "Light flow"
],
}
],
},
  {
"patient_symptom_id": 17,
"date": "2023-01-29",
"datetime": "2023-01-29T11:38:11.000Z",
"symptom_list": [
  {
"symptom_id": 1,
"name": "Color",
"color": "#f4f50b",
"symptom_value_ids": [
  1,
  6
],
"symptom_value_names": [
  "Low",
  "Yellow"
],
},
  {
"symptom_id": 2,
"name": "Energy",
"color": "#7ae38b",
"symptom_value_ids": [
  27,
  42
],
"symptom_value_names": [
  "Anxious",
  "High"
],
},
  {
"symptom_id": 4,
"name": "Stool",
"color": "#f2b706",
"symptom_value_ids": [
  14,
  29
],
"symptom_value_names": [
  "Constipation (1-2)",
  "Unable to Pass"
],
},
  {
"symptom_id": 6,
"name": "General Symptoms",
"color": "#951af6",
"symptom_value_ids": [
  31,
  34
],
"symptom_value_names": [
  "Fever",
  "Headache"
],
},
  {
"symptom_id": 7,
"name": "Urinary Symptoms",
"color": "#23a7f1",
"symptom_value_ids": [
  37
],
"symptom_value_names": [
  "Urgency when urinating"
],
},
  {
"symptom_id": 8,
"name": "Menstrual",
"color": "#f413d6",
"symptom_value_ids": [
  45
],
"symptom_value_names": [
  "Light flow"
],
}
],
},
  {
"patient_symptom_id": 19,
"date": "2023-01-29",
"datetime": "2023-01-29T11:38:11.000Z",
"symptom_list": [
  {
"symptom_id": 1,
"name": "Color",
"color": "#f4f50b",
"symptom_value_ids": [
  1,
  6
],
"symptom_value_names": [
  "Low",
  "Yellow"
],
},
  {
"symptom_id": 2,
"name": "Energy",
"color": "#7ae38b",
"symptom_value_ids": [
  27,
  42
],
"symptom_value_names": [
  "Anxious",
  "High"
],
},
  {
"symptom_id": 4,
"name": "Stool",
"color": "#f2b706",
"symptom_value_ids": [
  14,
  29
],
"symptom_value_names": [
  "Constipation (1-2)",
  "Unable to Pass"
],
},
  {
"symptom_id": 6,
"name": "General Symptoms",
"color": "#951af6",
"symptom_value_ids": [
  31,
  34
],
"symptom_value_names": [
  "Fever",
  "Headache"
],
},
  {
"symptom_id": 7,
"name": "Urinary Symptoms",
"color": "#23a7f1",
"symptom_value_ids": [
  37
],
"symptom_value_names": [
  "Urgency when urinating"
],
},
  {
"symptom_id": 8,
"name": "Menstrual",
"color": "#f413d6",
"symptom_value_ids": [
  45
],
"symptom_value_names": [
  "Light flow"
],
}
],
},
  {
"patient_symptom_id": 20,
"date": "2023-01-29",
"datetime": "2023-01-29T11:38:11.000Z",
"symptom_list": [
  {
"symptom_id": 1,
"name": "Color",
"color": "#f4f50b",
"symptom_value_ids": [
  1,
  6
],
"symptom_value_names": [
  "Low",
  "Yellow"
],
},
  {
"symptom_id": 2,
"name": "Energy",
"color": "#7ae38b",
"symptom_value_ids": [
  27,
  42
],
"symptom_value_names": [
  "Anxious",
  "High"
],
},
  {
"symptom_id": 4,
"name": "Stool",
"color": "#f2b706",
"symptom_value_ids": [
  14,
  29
],
"symptom_value_names": [
  "Constipation (1-2)",
  "Unable to Pass"
],
},
  {
"symptom_id": 6,
"name": "General Symptoms",
"color": "#951af6",
"symptom_value_ids": [
  31,
  34
],
"symptom_value_names": [
  "Fever",
  "Headache"
],
},
  {
"symptom_id": 7,
"name": "Urinary Symptoms",
"color": "#23a7f1",
"symptom_value_ids": [
  37
],
"symptom_value_names": [
  "Urgency when urinating"
],
},
  {
"symptom_id": 8,
"name": "Menstrual",
"color": "#f413d6",
"symptom_value_ids": [
  45
],
"symptom_value_names": [
  "Light flow"
],
}
],
}

在列表里面，一切看起来都像一个字典，其键是日期值是一个列表。 我写数据class的时候，我现在是这样写的：

data class Lists(
    val `2023-01-02`: List<SymptomList>,
    val `2023-01-03`: List<SymptomList>,
    val `2023-01-04`: List<SymptomList>,
    val `2023-01-07`: List<SymptomList>,
    val `2023-01-10`: List<SymptomList>,
    val `2023-01-11`: List<SymptomList>,
    val `2023-01-12`: List<SymptomList>,
    val `2023-01-13`: List<SymptomList>,
    val `2023-01-20`: List<SymptomList>,
    val `2023-01-22`: List<SymptomList>,
    val `2023-01-24`: List<SymptomList>,
    val `2023-01-25`: List<SymptomList>,
    val `2023-01-26`: List<SymptomList>,
    val `2023-01-27`: List<SymptomList>,
    val `2023-01-28`: List<SymptomList>,
    val `2023-01-29`: List<SymptomList>,
    val `2023-01-30`: List<SymptomList>,
    val `2023-01-31`: List<SymptomList>
)

我知道这不是好方法，因为字典中的条目可能更多，所以我应该如何写入数据 class？ 我尝试添加一个名为字典的层，但它没有用。

data class Dictionary(
    val dictionary: MutableMap<DateKey, List<SymptomList>>
)

1 个解决方案

解决方案1
 0  2023-02-01 03:12:45

首先，请使用JSON Formatter & Validator等在线资源来验证和美化您的 JSON 字符串。 它不可读，也无效。

回到你的问题，是的，你应该使用MutableMap来存储你的对象列表，而不是在你的数据 class 中创建大量变量。

考虑以下示例，它应该与您的 JSON 字符串具有相似的结构：

{
   "data":{
      "2022-12-20":[
         {
            "id":1,
            "name":"A"
         },
         {
            "id":2,
            "name":"B"
         }
      ],
      "2022-12-21":[
         {
            "id":3,
            "name":"C"
         },
         {
            "id":4,
            "name":"D"
         }
      ]
   }
}

您应该具有以下数据类：

data class DataList(val data: MutableMap<String, List<SubData>>)

data class SubData(val id: Int, val name: String)

您可以使用Gson库将 JSON 字符串转换为 Object：

val dataList = Gson().fromJson(rawJson, DataList::class.java)
dataList.data.forEach { (key, value) ->
    println("Key: $key")
    println("Value: $value")
}

Output：

Key: 2022-12-20
Value: [SubData(id=1, name=A), SubData(id=2, name=B)]
Key: 2022-12-21
Value: [SubData(id=3, name=C), SubData(id=4, name=D)]

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