回答編集履歴
3
コードを質問に合わせて修正
test
CHANGED
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@@ -12,21 +12,111 @@
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public class JsonTest {
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public static void main(String[] args) {
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JSONObject obj = new JSONObject();
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-
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static List<Map<String, Object>> getList() {
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ArrayList<Map<String, Object>> list = new ArrayList<>();
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{
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Map<String, Object> map = new HashMap<>();
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map.put("id", "0");
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map.put("name", "taro");
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map.put("list", "AAA,BBB,CCC");
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list.add(map);
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}
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{
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Map<String, Object> map = new HashMap<>();
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map.put("id", "1");
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map.put("name", "hanako");
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map.put("list", "DDD,EEE,FFF");
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list.add(map);
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}
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return list;
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}
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public static void main(String[] args) {
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//Listを代入
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List<Map<String, Object>> List = getList();
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// 他のデータと整合するために、map化
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Map<String, JSONObject> ObjectMap= new HashMap<>();
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for(Map<String, Object> map : List) {
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JSONObject Object = new JSONObject();
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Object.put("id", map.get("id"));
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Object.put("name", map.get("name"));
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if(map.get("list") != null) {
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String string = (String)map.get("list");
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// ここでカンマ区切りのリストに変換
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List<String> list = Arrays.asList(string.split(","));
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Object.put("list", list);
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}
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ObjectMap.put(Object.getString("id"), Object);
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}
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// 別のデータと整合（内容は省略）
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List<JSONObject> outputObjectList = new ArrayList<>();
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for(String id : ObjectMap.keySet()) {
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JSONObject jsonObject = ObjectMap.get(id);
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jsonObject.put("address", "〇〇県");
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outputObjectList.add(jsonObject);
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}
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// 取り出し
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for (JSONObject obj : outputObjectList) {
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System.out.println(obj);
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JSONArray list = obj.getJSONArray("list");
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System.out.println(list);
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System.out.println(list);
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}
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}
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@@ -36,13 +126,15 @@
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```plain text
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{"id":
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{"address":"〇〇県","name":"taro","id":"0","list":["AAA","BBB","CCC"]}
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["
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["AAA","BBB","CCC"]
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{"address":"〇〇県","name":"hanako","id":"1","list":["DDD","EEE","FFF"]}
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["DDD","EEE","FFF"]
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```
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---
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2
追記
test
CHANGED
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@@ -49,3 +49,11 @@
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49
49
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試したり書いている内に進捗が進まれていました...
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50
50
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51
51
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こちらでは上記コードで警告等出ていません.
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52
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+
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53
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+
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54
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実際に返されているクラスを調べるのでしたら,
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System.out.println(obj.get("list").getClass().getCanonicalName());
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で表示されると思います.
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1
追記
test
CHANGED
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@@ -24,7 +24,7 @@
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24
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JSONArray list = obj.getJSONArray("list");
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JSONArray list = obj.getJSONArray("list");
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System.out.println(list);
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30
30
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@@ -41,3 +41,11 @@
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41
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["aaa","bbb","ccc"]
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42
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43
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```
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44
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45
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46
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+
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47
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+
---
|
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48
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+
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49
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試したり書いている内に進捗が進まれていました...
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50
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+
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51
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こちらでは上記コードで警告等出ていません.
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