我有一個對象嵌套在 Json 文件中的另一個對象內(nèi)。我想將此對象與字段映射到模型類。{"code": 200,"time": "2019-09-05T07:09:44.228+0000","data": { "statuses": [ { "statusType": "IN_PROGRESS", "statusTimestamp":"019-09-05T17:04:54+1000" }, { "statusType": "SENT", "statusTimestamp":"2019-09-05T21:04:55+1000" }, { "statusType": "OPENED", "statusTimestamp":"2019-09-05T23:04:55+1000" }, { "statusType": "INTERACTION_ID_RECEIVED", "statusTimestamp":"2019-09-06T00:04:55+1000" } ]},"status": 200,"message": null,"errors": null,}我想將 statusType 和 TimeStamp 映射到自定義模型類。型號類別：公開課模型{private String statusType;private DateTime statusTimestamp;public Model(String statusType, String statusTimestamp) { this.statusType=statusType; this.statusTimestamp=new DateTime(statusTimestamp);}public String getStatusType() { return statusType;}public void setStatusType(String statusType) { this.statusType = statusType;}public DateTime getStatusTimestamp() { return statusTimestamp;}public void setStatusTimestamp(String statusTimestamp) { this.statusTimestamp = new DateTime(statusTimestamp);}}我想將狀態(tài)映射到該模型類并將這些對象存儲在類似這樣的鏈接中列表狀態(tài) = ParsedJson.read("$..['statuses'][*]", List.class)
2 回答
鴻蒙傳說
TA貢獻(xiàn)1865條經(jīng)驗(yàn) 獲得超7個贊
如果您不想對整個響應(yīng)進(jìn)行建模，可以使用 Jackson 將 JSON 解析為樹節(jié)點(diǎn)，然后僅映射您關(guān)心的部分：
ObjectMapper mapper = new ObjectMapper();
JsonNode rootNode = mapper.readTree(json);
JsonNode statusesNode = rootNode.path("data").path("statuses");
List<Status> statuses = mapper.convertValue(statusesNode,
new TypeReference<List<Status>>(){});
湖上湖
TA貢獻(xiàn)2003條經(jīng)驗(yàn) 獲得超2個贊
我在 json 字符串中看到兩個錯誤，修復(fù)它應(yīng)該可以幫助您輕松使用 java 或任何其他語言創(chuàng)建對象。
第 12 行：“缺少第 26 行： 的放置無效，
修復(fù)問題后的 Json
{
"code": 200,
"time": "2019-09-05T07:09:44.228+0000",
"data": {
"statuses": [
{
"statusType": "IN_PROGRESS",
"statusTimestamp":"019-09-05T17:04:54+1000"
},
{
"statusType": "SENT",
"statusTimestamp":"2019-09-05T21:04:55+1000"
},
{
"statusType": "OPENED",
"statusTimestamp":"2019-09-05T23:04:55+1000"
},
{
"statusType": "INTERACTION_ID_RECEIVED",
"statusTimestamp":"2019-09-06T00:04:55+1000"
}
]
},
"status": 200,
"message": null,
"errors": null
}
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