{ "msg": "success", "code": "success", "data": [ { "create_time": "2020-11-09 11:54:08", "exec_status": "正常", "host_id": 1527414, "id": 3136268, "ip": "10.127.22.132", "modify_time": "2020-11-09 11:54:15", "task_name": "dns插件执行", "ts_id": 1600, "uuid": "1ca74de5-35f9-4f91-8cfb-7d4311eb8e45" }, { "create_time": "2020-11-09 11:50:18", "exec_status": "正常", "host_id": 1527414, "id": 3136267, "ip": "10.127.22.132", "modify_time": "2020-11-09 11:50:25", "task_name": "dns插件执行", "ts_id": 1599, "uuid": "1ca74de5-35f9-4f91-8cfb-7d4311eb8e45" } ] }
获取到的json如上所示。
JSONObject object = JSONObject.parseObject(response); List<QlbSnatPluginExecute> qlbSnatPluginExecutes = (List<QlbSnatPluginExecute>) object.get("data"); Map<String,List<QlbSnatPluginExecute>> map = qlbSnatPluginExecutes.stream().collect(Collectors.groupingBy(QlbSnatPluginExecute::getIp));这么写在第三行代码会报错com.alibaba.fastjson.JSONObject cannot be cast to xxx
经过排查发现是嵌套的json处理问题，需要换一种处理方式。
JSONObject object = JSONObject.parseObject(response); List<QlbSnatPluginExecute> qlbSnatPluginExecutes = JSON.parseArray(object.getString("data"), QlbSnatPluginExecute.class); Map<String,List<QlbSnatPluginExecute>> map = qlbSnatPluginExecutes.stream().collect(Collectors.groupingBy(QlbSnatPluginExecute::getIp));第二行代码中json转自定义类的方式进行改变即可。
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