我有一条Json消息，我想通过Kafka KTable进行处理。
消息是：
{
"table": "TEST.S_ORDER_ITEM",
"op_type": "I",
"op_ts": "test1",
"current_ts": "2017-07-28T09:09:45.022000",
"pos": "00000000010000006413",
"after": {
"ROW_ID": "2-21DSRY",
"LAST_UPD": "2014-05-24:00:00:00",
"ORDER_ID": "2-21DSRY",
"LAST_UPD_BY": "0-1",
"ACTIVE_FLG": "WCW==",
"BU_ID": "1-ENQCIQ",
"ORDER_NUM": "2-96612816484",
"REV_NUM": "1",
"ORDER_DT": "2014-05-24:00:00:00",
"REQ_SHIP_DT": "2014-06-10:00:00:00",
"ACCNT_ID": "1-1G9MA10",
"CONTACT_ID": "1-1GGZ1LF",
"INTEGRATION_ID": null,
"QUOTE_ID": null,
"SHIP_CON_ID": "1-1GGZ1LF",
"STATUS_CD": "Pending",
"X_CLOSE_DT": null,
"X_CUST_REF": "548304383-761",
"X_SUB_STAT": "COMPLETE",
"PROCESS_TIMESTAMP": "2017-04-19:15:27:34.786214000",
"SOFT_DELETE": "N"
}
}
是否可以让KTable以KTable格式存储数据，其中密钥将是上述消息中的ROW_ID。
我可以使用KStream做同样的事情，但问题是每次我想要更新数据。 我在KStream中使用了相同的方法：
KStream<String, JsonNode> orderstre = streams.filter((k, v) -> v.path("table").asText ().equals("TEST.S_ORDER"))
.map((k, v) -> KeyValue.pair(v.path("after").path("ROW_ID").asText(), v));